Mercurial > hg > nginx
annotate src/http/modules/ngx_http_gzip_filter_module.c @ 7155:29e9571b1989
Gzip: support for a zlib variant from Intel.
A zlib variant from Intel as available from https://github.com/jtkukunas/zlib
uses 64K hash instead of scaling it from the specified memory level, and
also uses 16-byte padding in one of the window-sized memory buffers, and can
force window bits to 13 if compression level is set to 1 and appropriate
compile options are used. As a result, nginx complained with "gzip filter
failed to use preallocated memory" alerts.
This change improves deflate_state allocation detection by testing that
items is 1 (deflate_state is the only allocation where items is 1).
Additionally, on first failure to use preallocated memory we now assume
that we are working with the Intel's modified zlib, and switch to using
appropriate preallocations. If this does not help, we complain with the
usual alerts.
Previous version of this patch was published at
http://mailman.nginx.org/pipermail/nginx/2014-July/044568.html.
The zlib variant in question is used by default in ClearLinux from Intel,
see http://mailman.nginx.org/pipermail/nginx-ru/2017-October/060421.html,
http://mailman.nginx.org/pipermail/nginx-ru/2017-November/060544.html.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Sat, 18 Nov 2017 04:03:27 +0300 |
parents | ab5117642647 |
children | ac5a741d39cf |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 |
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12 #include <zlib.h> |
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13 |
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14 |
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15 typedef struct { |
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16 ngx_flag_t enable; |
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17 ngx_flag_t no_buffer; |
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18 |
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19 ngx_hash_t types; |
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21 ngx_bufs_t bufs; |
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22 |
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23 size_t postpone_gzipping; |
589 | 24 ngx_int_t level; |
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25 size_t wbits; |
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26 size_t memlevel; |
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27 ssize_t min_length; |
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28 |
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29 ngx_array_t *types_keys; |
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30 } ngx_http_gzip_conf_t; |
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31 |
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32 |
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33 typedef struct { |
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34 ngx_chain_t *in; |
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35 ngx_chain_t *free; |
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36 ngx_chain_t *busy; |
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37 ngx_chain_t *out; |
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38 ngx_chain_t **last_out; |
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39 |
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40 ngx_chain_t *copied; |
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41 ngx_chain_t *copy_buf; |
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42 |
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43 ngx_buf_t *in_buf; |
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44 ngx_buf_t *out_buf; |
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45 ngx_int_t bufs; |
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46 |
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47 void *preallocated; |
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48 char *free_mem; |
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49 ngx_uint_t allocated; |
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50 |
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51 int wbits; |
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52 int memlevel; |
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53 |
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54 unsigned flush:4; |
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55 unsigned redo:1; |
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56 unsigned done:1; |
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57 unsigned nomem:1; |
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58 unsigned gzheader:1; |
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59 unsigned buffering:1; |
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60 unsigned intel:1; |
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61 |
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62 size_t zin; |
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63 size_t zout; |
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64 |
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65 uint32_t crc32; |
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66 z_stream zstream; |
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67 ngx_http_request_t *request; |
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68 } ngx_http_gzip_ctx_t; |
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69 |
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70 |
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71 #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED) |
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72 |
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73 struct gztrailer { |
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74 uint32_t crc32; |
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75 uint32_t zlen; |
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76 }; |
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77 |
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78 #else /* NGX_HAVE_BIG_ENDIAN || !NGX_HAVE_NONALIGNED */ |
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79 |
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80 struct gztrailer { |
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81 u_char crc32[4]; |
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82 u_char zlen[4]; |
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83 }; |
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84 |
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85 #endif |
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86 |
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87 |
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88 static void ngx_http_gzip_filter_memory(ngx_http_request_t *r, |
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89 ngx_http_gzip_ctx_t *ctx); |
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90 static ngx_int_t ngx_http_gzip_filter_buffer(ngx_http_gzip_ctx_t *ctx, |
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91 ngx_chain_t *in); |
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92 static ngx_int_t ngx_http_gzip_filter_deflate_start(ngx_http_request_t *r, |
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93 ngx_http_gzip_ctx_t *ctx); |
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94 static ngx_int_t ngx_http_gzip_filter_gzheader(ngx_http_request_t *r, |
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95 ngx_http_gzip_ctx_t *ctx); |
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96 static ngx_int_t ngx_http_gzip_filter_add_data(ngx_http_request_t *r, |
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97 ngx_http_gzip_ctx_t *ctx); |
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98 static ngx_int_t ngx_http_gzip_filter_get_buf(ngx_http_request_t *r, |
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99 ngx_http_gzip_ctx_t *ctx); |
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100 static ngx_int_t ngx_http_gzip_filter_deflate(ngx_http_request_t *r, |
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101 ngx_http_gzip_ctx_t *ctx); |
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102 static ngx_int_t ngx_http_gzip_filter_deflate_end(ngx_http_request_t *r, |
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103 ngx_http_gzip_ctx_t *ctx); |
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parents:
2290
diff
changeset
|
104 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
105 static void *ngx_http_gzip_filter_alloc(void *opaque, u_int items, |
497 | 106 u_int size); |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
107 static void ngx_http_gzip_filter_free(void *opaque, void *address); |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
108 static void ngx_http_gzip_filter_free_copy_buf(ngx_http_request_t *r, |
bbfaeb220e90
postpone zlib memory allocation
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parents:
2292
diff
changeset
|
109 ngx_http_gzip_ctx_t *ctx); |
177
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
110 |
573 | 111 static ngx_int_t ngx_http_gzip_add_variables(ngx_conf_t *cf); |
112 static ngx_int_t ngx_http_gzip_ratio_variable(ngx_http_request_t *r, | |
113 ngx_http_variable_value_t *v, uintptr_t data); | |
479 | 114 |
681 | 115 static ngx_int_t ngx_http_gzip_filter_init(ngx_conf_t *cf); |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
116 static void *ngx_http_gzip_create_conf(ngx_conf_t *cf); |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
117 static char *ngx_http_gzip_merge_conf(ngx_conf_t *cf, |
497 | 118 void *parent, void *child); |
527 | 119 static char *ngx_http_gzip_window(ngx_conf_t *cf, void *post, void *data); |
120 static char *ngx_http_gzip_hash(ngx_conf_t *cf, void *post, void *data); | |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
121 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
122 |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
123 static ngx_conf_num_bounds_t ngx_http_gzip_comp_level_bounds = { |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
124 ngx_conf_check_num_bounds, 1, 9 |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
125 }; |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
126 |
527 | 127 static ngx_conf_post_handler_pt ngx_http_gzip_window_p = ngx_http_gzip_window; |
128 static ngx_conf_post_handler_pt ngx_http_gzip_hash_p = ngx_http_gzip_hash; | |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
129 |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
130 |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
131 static ngx_command_t ngx_http_gzip_filter_commands[] = { |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
132 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
133 { ngx_string("gzip"), |
485 | 134 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
135 |NGX_CONF_FLAG, | |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
136 ngx_conf_set_flag_slot, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
137 NGX_HTTP_LOC_CONF_OFFSET, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
138 offsetof(ngx_http_gzip_conf_t, enable), |
412
199cd29f35a3
nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
370
diff
changeset
|
139 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
140 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
141 { ngx_string("gzip_buffers"), |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
142 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
143 ngx_conf_set_bufs_slot, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
144 NGX_HTTP_LOC_CONF_OFFSET, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
145 offsetof(ngx_http_gzip_conf_t, bufs), |
412
199cd29f35a3
nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
370
diff
changeset
|
146 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
147 |
452 | 148 { ngx_string("gzip_types"), |
149 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
2166
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
150 ngx_http_types_slot, |
452 | 151 NGX_HTTP_LOC_CONF_OFFSET, |
2166
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
152 offsetof(ngx_http_gzip_conf_t, types_keys), |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
153 &ngx_http_html_default_types[0] }, |
452 | 154 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
155 { ngx_string("gzip_comp_level"), |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
156 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
157 ngx_conf_set_num_slot, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
158 NGX_HTTP_LOC_CONF_OFFSET, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
159 offsetof(ngx_http_gzip_conf_t, level), |
412
199cd29f35a3
nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
370
diff
changeset
|
160 &ngx_http_gzip_comp_level_bounds }, |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
161 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
162 { ngx_string("gzip_window"), |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
163 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
164 ngx_conf_set_size_slot, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
165 NGX_HTTP_LOC_CONF_OFFSET, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
166 offsetof(ngx_http_gzip_conf_t, wbits), |
527 | 167 &ngx_http_gzip_window_p }, |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
168 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
169 { ngx_string("gzip_hash"), |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
170 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
171 ngx_conf_set_size_slot, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
172 NGX_HTTP_LOC_CONF_OFFSET, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
173 offsetof(ngx_http_gzip_conf_t, memlevel), |
527 | 174 &ngx_http_gzip_hash_p }, |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
175 |
2542
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
176 { ngx_string("postpone_gzipping"), |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
177 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
178 ngx_conf_set_size_slot, |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
179 NGX_HTTP_LOC_CONF_OFFSET, |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
180 offsetof(ngx_http_gzip_conf_t, postpone_gzipping), |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
181 NULL }, |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
182 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
183 { ngx_string("gzip_no_buffer"), |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
184 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
185 ngx_conf_set_flag_slot, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
186 NGX_HTTP_LOC_CONF_OFFSET, |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
187 offsetof(ngx_http_gzip_conf_t, no_buffer), |
412
199cd29f35a3
nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
370
diff
changeset
|
188 NULL }, |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
189 |
320
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
190 { ngx_string("gzip_min_length"), |
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
191 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
192 ngx_conf_set_size_slot, |
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
193 NGX_HTTP_LOC_CONF_OFFSET, |
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
194 offsetof(ngx_http_gzip_conf_t, min_length), |
412
199cd29f35a3
nginx-0.0.10-2004-08-31-19:32:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
370
diff
changeset
|
195 NULL }, |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
196 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
177
diff
changeset
|
197 ngx_null_command |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
198 }; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
201 static ngx_http_module_t ngx_http_gzip_filter_module_ctx = { |
573 | 202 ngx_http_gzip_add_variables, /* preconfiguration */ |
681 | 203 ngx_http_gzip_filter_init, /* postconfiguration */ |
177
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
204 |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
205 NULL, /* create main configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
206 NULL, /* init main configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
207 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
208 NULL, /* create server configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
209 NULL, /* merge server configuration */ |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
210 |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
211 ngx_http_gzip_create_conf, /* create location configuration */ |
489 | 212 ngx_http_gzip_merge_conf /* merge location configuration */ |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 }; |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
214 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 ngx_module_t ngx_http_gzip_filter_module = { |
509 | 217 NGX_MODULE_V1, |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
218 &ngx_http_gzip_filter_module_ctx, /* module context */ |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
219 ngx_http_gzip_filter_commands, /* module directives */ |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
220 NGX_HTTP_MODULE, /* module type */ |
541 | 221 NULL, /* init master */ |
681 | 222 NULL, /* init module */ |
541 | 223 NULL, /* init process */ |
224 NULL, /* init thread */ | |
225 NULL, /* exit thread */ | |
226 NULL, /* exit process */ | |
227 NULL, /* exit master */ | |
228 NGX_MODULE_V1_PADDING | |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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parents:
diff
changeset
|
229 }; |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
230 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
231 |
573 | 232 static ngx_str_t ngx_http_gzip_ratio = ngx_string("gzip_ratio"); |
509 | 233 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
234 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
235 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
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parents:
diff
changeset
|
236 |
7155
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
237 static ngx_uint_t ngx_http_gzip_assume_intel; |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
238 |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
239 |
497 | 240 static ngx_int_t |
241 ngx_http_gzip_header_filter(ngx_http_request_t *r) | |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
242 { |
2051
115e6f029fcc
"gzip_vary on" always sends "Vary: Accept-Encoding" header
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
243 ngx_table_elt_t *h; |
115e6f029fcc
"gzip_vary on" always sends "Vary: Accept-Encoding" header
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parents:
2049
diff
changeset
|
244 ngx_http_gzip_ctx_t *ctx; |
115e6f029fcc
"gzip_vary on" always sends "Vary: Accept-Encoding" header
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parents:
2049
diff
changeset
|
245 ngx_http_gzip_conf_t *conf; |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
246 |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
247 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
248 |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
249 if (!conf->enable |
452 | 250 || (r->headers_out.status != NGX_HTTP_OK |
251 && r->headers_out.status != NGX_HTTP_FORBIDDEN | |
252 && r->headers_out.status != NGX_HTTP_NOT_FOUND) | |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
253 || (r->headers_out.content_encoding |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
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parents:
134
diff
changeset
|
254 && r->headers_out.content_encoding->value.len) |
320
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
255 || (r->headers_out.content_length_n != -1 |
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
319
diff
changeset
|
256 && r->headers_out.content_length_n < conf->min_length) |
3379
0c517d0cabe0
backout r3315 and test r->header_only last, since it's not actually
Igor Sysoev <igor@sysoev.ru>
parents:
3372
diff
changeset
|
257 || ngx_http_test_content_type(r, &conf->types) == NULL |
0c517d0cabe0
backout r3315 and test r->header_only last, since it's not actually
Igor Sysoev <igor@sysoev.ru>
parents:
3372
diff
changeset
|
258 || r->header_only) |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
259 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
260 return ngx_http_next_header_filter(r); |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
261 } |
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
262 |
3313 | 263 r->gzip_vary = 1; |
264 | |
3773 | 265 #if (NGX_HTTP_DEGRADATION) |
266 { | |
267 ngx_http_core_loc_conf_t *clcf; | |
268 | |
269 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
270 | |
271 if (clcf->gzip_disable_degradation && ngx_http_degraded(r)) { | |
272 return ngx_http_next_header_filter(r); | |
273 } | |
274 } | |
275 #endif | |
276 | |
3313 | 277 if (!r->gzip_tested) { |
278 if (ngx_http_gzip_ok(r) != NGX_OK) { | |
279 return ngx_http_next_header_filter(r); | |
280 } | |
281 | |
282 } else if (!r->gzip_ok) { | |
283 return ngx_http_next_header_filter(r); | |
284 } | |
285 | |
501 | 286 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_gzip_ctx_t)); |
287 if (ctx == NULL) { | |
288 return NGX_ERROR; | |
289 } | |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
290 |
501 | 291 ngx_http_set_ctx(r, ctx, ngx_http_gzip_filter_module); |
292 | |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
293 ctx->request = r; |
2542
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
294 ctx->buffering = (conf->postpone_gzipping != 0); |
2410
bbfaeb220e90
postpone zlib memory allocation
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parents:
2292
diff
changeset
|
295 |
bbfaeb220e90
postpone zlib memory allocation
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parents:
2292
diff
changeset
|
296 ngx_http_gzip_filter_memory(r, ctx); |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
297 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
298 h = ngx_list_push(&r->headers_out.headers); |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
299 if (h == NULL) { |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
300 return NGX_ERROR; |
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
301 } |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
302 |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
303 h->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3379
diff
changeset
|
304 ngx_str_set(&h->key, "Content-Encoding"); |
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3379
diff
changeset
|
305 ngx_str_set(&h->value, "gzip"); |
1790
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
306 r->headers_out.content_encoding = h; |
775edc46ee66
ngx_http_gzip_static_module and gzip_disable
Igor Sysoev <igor@sysoev.ru>
parents:
1626
diff
changeset
|
307 |
513 | 308 r->main_filter_need_in_memory = 1; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
309 |
577 | 310 ngx_http_clear_content_length(r); |
311 ngx_http_clear_accept_ranges(r); | |
5733
e491b26fa5a1
Entity tags: downgrade strong etags to weak ones as needed.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5432
diff
changeset
|
312 ngx_http_weak_etag(r); |
577 | 313 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
314 return ngx_http_next_header_filter(r); |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
315 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
316 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
317 |
497 | 318 static ngx_int_t |
319 ngx_http_gzip_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
320 { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
321 int rc; |
5876
973fded4f461
Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5733
diff
changeset
|
322 ngx_uint_t flush; |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
323 ngx_chain_t *cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
324 ngx_http_gzip_ctx_t *ctx; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
325 |
243
bf2faf694c19
nginx-0.0.1-2004-01-28-23:38:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
239
diff
changeset
|
326 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module); |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
327 |
4990
e2794322ec76
Fixed HEAD requests handling when proxying is used (closes #261).
Valentin Bartenev <vbart@nginx.com>
parents:
4965
diff
changeset
|
328 if (ctx == NULL || ctx->done || r->header_only) { |
177
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
329 return ngx_http_next_body_filter(r, in); |
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
330 } |
4db54fdbcbe7
nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
331 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
332 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
333 "http gzip filter"); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
334 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
335 if (ctx->buffering) { |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
336 |
2542
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
337 /* |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
338 * With default memory settings zlib starts to output gzipped data |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
339 * only after it has got about 90K, so it makes sense to allocate |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
340 * zlib memory (200-400K) only after we have enough data to compress. |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
341 * Although we copy buffers, nevertheless for not big responses |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
342 * this allows to allocate zlib memory, to compress and to output |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
343 * the response in one step using hot CPU cache. |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
344 */ |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
345 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
346 if (in) { |
2542
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
347 switch (ngx_http_gzip_filter_buffer(ctx, in)) { |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
348 |
2468 | 349 case NGX_OK: |
350 return NGX_OK; | |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
351 |
2468 | 352 case NGX_DONE: |
353 in = NULL; | |
354 break; | |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
355 |
2468 | 356 default: /* NGX_ERROR */ |
357 goto failed; | |
358 } | |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
359 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
360 } else { |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
361 ctx->buffering = 0; |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
362 } |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
363 } |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
364 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
365 if (ctx->preallocated == NULL) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
366 if (ngx_http_gzip_filter_deflate_start(r, ctx) != NGX_OK) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
367 goto failed; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
368 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
369 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
370 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
371 if (in) { |
2536
a6d6d762c554
small optimization: " == NGX_ERROR" > " != NGX_OK"
Igor Sysoev <igor@sysoev.ru>
parents:
2468
diff
changeset
|
372 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
373 goto failed; |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
374 } |
5291
84155a389bcc
Gzip: clearing of c->buffered if all data are flushed.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5107
diff
changeset
|
375 |
84155a389bcc
Gzip: clearing of c->buffered if all data are flushed.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5107
diff
changeset
|
376 r->connection->buffered |= NGX_HTTP_GZIP_BUFFERED; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
377 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
378 |
5876
973fded4f461
Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5733
diff
changeset
|
379 if (ctx->nomem) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
380 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
381 /* flush busy buffers */ |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
382 |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
383 if (ngx_http_next_body_filter(r, NULL) == NGX_ERROR) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
384 goto failed; |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
385 } |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
386 |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
387 cl = NULL; |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
388 |
4114
5db098f97e0e
API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents:
3773
diff
changeset
|
389 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &cl, |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
390 (ngx_buf_tag_t) &ngx_http_gzip_filter_module); |
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
391 ctx->nomem = 0; |
5876
973fded4f461
Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5733
diff
changeset
|
392 flush = 0; |
973fded4f461
Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5733
diff
changeset
|
393 |
973fded4f461
Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5733
diff
changeset
|
394 } else { |
973fded4f461
Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5733
diff
changeset
|
395 flush = ctx->busy ? 1 : 0; |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
396 } |
141
656d468f4ead
nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
397 |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
398 for ( ;; ) { |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
399 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
400 /* cycle while we can write to a client */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
401 |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
402 for ( ;; ) { |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
403 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
404 /* cycle while there is data to feed zlib and ... */ |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
405 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
406 rc = ngx_http_gzip_filter_add_data(r, ctx); |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
407 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
408 if (rc == NGX_DECLINED) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
409 break; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
410 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
411 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
412 if (rc == NGX_AGAIN) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
413 continue; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
414 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
415 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
416 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
417 /* ... there are buffers to write zlib output */ |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
418 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
419 rc = ngx_http_gzip_filter_get_buf(r, ctx); |
501 | 420 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
421 if (rc == NGX_DECLINED) { |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
422 break; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
423 } |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
424 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
425 if (rc == NGX_ERROR) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
426 goto failed; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
427 } |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
428 |
479 | 429 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
430 rc = ngx_http_gzip_filter_deflate(r, ctx); |
355
0fb6c53fb135
nginx-0.0.7-2004-06-15-21:47:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
431 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
432 if (rc == NGX_OK) { |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
433 break; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
322
diff
changeset
|
434 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
435 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
436 if (rc == NGX_ERROR) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
437 goto failed; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
438 } |
501 | 439 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
440 /* rc == NGX_AGAIN */ |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
441 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
442 |
5876
973fded4f461
Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5733
diff
changeset
|
443 if (ctx->out == NULL && !flush) { |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
444 ngx_http_gzip_filter_free_copy_buf(r, ctx); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
445 |
2292 | 446 return ctx->busy ? NGX_AGAIN : NGX_OK; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
447 } |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
448 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
449 if (!ctx->gzheader) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
450 if (ngx_http_gzip_filter_gzheader(r, ctx) != NGX_OK) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
451 goto failed; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
452 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
453 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
454 |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
455 rc = ngx_http_next_body_filter(r, ctx->out); |
141
656d468f4ead
nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
456 |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
457 if (rc == NGX_ERROR) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
458 goto failed; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
459 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
460 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
461 ngx_http_gzip_filter_free_copy_buf(r, ctx); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
462 |
4114
5db098f97e0e
API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents:
3773
diff
changeset
|
463 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &ctx->out, |
501 | 464 (ngx_buf_tag_t) &ngx_http_gzip_filter_module); |
134
d57c6835225c
nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
465 ctx->last_out = &ctx->out; |
327
e0f3f238db09
nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
326
diff
changeset
|
466 |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
467 ctx->nomem = 0; |
5876
973fded4f461
Gzip, gunzip: flush busy buffers if any.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5733
diff
changeset
|
468 flush = 0; |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
469 |
327
e0f3f238db09
nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
326
diff
changeset
|
470 if (ctx->done) { |
2287
baa61933d5ed
use nomem flag to flush busy bufs,
Igor Sysoev <igor@sysoev.ru>
parents:
2166
diff
changeset
|
471 return rc; |
327
e0f3f238db09
nginx-0.0.3-2004-04-26-17:40:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
326
diff
changeset
|
472 } |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
473 } |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
474 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
475 /* unreachable */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
476 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
477 failed: |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
478 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
479 ctx->done = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
480 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
481 if (ctx->preallocated) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
482 deflateEnd(&ctx->zstream); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
483 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
484 ngx_pfree(r->pool, ctx->preallocated); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
485 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
486 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
487 ngx_http_gzip_filter_free_copy_buf(r, ctx); |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
488 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
489 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
490 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
491 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
492 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
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493 static void |
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494 ngx_http_gzip_filter_memory(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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495 { |
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496 int wbits, memlevel; |
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497 ngx_http_gzip_conf_t *conf; |
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498 |
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499 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
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500 |
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501 wbits = conf->wbits; |
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502 memlevel = conf->memlevel; |
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503 |
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504 if (r->headers_out.content_length_n > 0) { |
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|
505 |
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506 /* the actual zlib window size is smaller by 262 bytes */ |
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|
507 |
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508 while (r->headers_out.content_length_n < ((1 << (wbits - 1)) - 262)) { |
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509 wbits--; |
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510 memlevel--; |
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511 } |
4965
58dfef910ccd
Gzip: fixed zlib memLevel adjusting.
Valentin Bartenev <vbart@nginx.com>
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|
512 |
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Gzip: fixed zlib memLevel adjusting.
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|
513 if (memlevel < 1) { |
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Gzip: fixed zlib memLevel adjusting.
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|
514 memlevel = 1; |
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515 } |
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516 } |
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517 |
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518 ctx->wbits = wbits; |
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519 ctx->memlevel = memlevel; |
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520 |
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521 /* |
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522 * We preallocate a memory for zlib in one buffer (200K-400K), this |
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523 * decreases a number of malloc() and free() calls and also probably |
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524 * decreases a number of syscalls (sbrk()/mmap() and so on). |
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525 * Besides we free the memory as soon as a gzipping will complete |
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526 * and do not wait while a whole response will be sent to a client. |
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527 * |
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528 * 8K is for zlib deflate_state, it takes |
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529 * *) 5816 bytes on i386 and sparc64 (32-bit mode) |
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530 * *) 5920 bytes on amd64 and sparc64 |
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|
531 */ |
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|
532 |
7155
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Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
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|
533 if (!ngx_http_gzip_assume_intel) { |
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Gzip: support for a zlib variant from Intel.
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|
534 ctx->allocated = 8192 + (1 << (wbits + 2)) + (1 << (memlevel + 9)); |
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Gzip: support for a zlib variant from Intel.
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|
535 |
29e9571b1989
Gzip: support for a zlib variant from Intel.
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|
536 } else { |
29e9571b1989
Gzip: support for a zlib variant from Intel.
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|
537 /* |
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Gzip: support for a zlib variant from Intel.
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|
538 * A zlib variant from Intel, https://github.com/jtkukunas/zlib. |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
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|
539 * It can force window bits to 13 for fast compression level, |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
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|
540 * on processors with SSE 4.2 it uses 64K hash instead of scaling |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
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|
541 * it from the specified memory level, and also introduces |
29e9571b1989
Gzip: support for a zlib variant from Intel.
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|
542 * 16-byte padding in one out of the two window-sized buffers. |
29e9571b1989
Gzip: support for a zlib variant from Intel.
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|
543 */ |
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Gzip: support for a zlib variant from Intel.
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|
544 |
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|
545 if (conf->level == 1) { |
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Gzip: support for a zlib variant from Intel.
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|
546 wbits = ngx_max(wbits, 13); |
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Gzip: support for a zlib variant from Intel.
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|
547 } |
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Gzip: support for a zlib variant from Intel.
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|
548 |
29e9571b1989
Gzip: support for a zlib variant from Intel.
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|
549 ctx->allocated = 8192 + 16 + (1 << (wbits + 2)) |
29e9571b1989
Gzip: support for a zlib variant from Intel.
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parents:
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|
550 + (1 << (ngx_max(memlevel, 8) + 8)) |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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|
551 + (1 << (memlevel + 8)); |
29e9571b1989
Gzip: support for a zlib variant from Intel.
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parents:
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|
552 ctx->intel = 1; |
29e9571b1989
Gzip: support for a zlib variant from Intel.
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|
553 } |
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|
554 } |
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|
555 |
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|
556 |
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|
557 static ngx_int_t |
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|
558 ngx_http_gzip_filter_buffer(ngx_http_gzip_ctx_t *ctx, ngx_chain_t *in) |
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|
559 { |
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|
560 size_t size, buffered; |
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|
561 ngx_buf_t *b, *buf; |
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fix postponed zlib memory allocation, introduced in r2411
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|
562 ngx_chain_t *cl, **ll; |
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|
563 ngx_http_request_t *r; |
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|
564 ngx_http_gzip_conf_t *conf; |
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|
565 |
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|
566 r = ctx->request; |
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|
567 |
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|
568 r->connection->buffered |= NGX_HTTP_GZIP_BUFFERED; |
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|
569 |
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|
570 buffered = 0; |
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|
571 ll = &ctx->in; |
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|
572 |
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|
573 for (cl = ctx->in; cl; cl = cl->next) { |
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|
574 buffered += cl->buf->last - cl->buf->pos; |
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|
575 ll = &cl->next; |
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|
576 } |
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|
577 |
2542
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|
578 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
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fix postponed zlib memory allocation, introduced in r2411
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|
579 |
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|
580 while (in) { |
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|
581 cl = ngx_alloc_chain_link(r->pool); |
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|
582 if (cl == NULL) { |
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|
583 return NGX_ERROR; |
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|
584 } |
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|
585 |
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|
586 b = in->buf; |
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|
587 |
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|
588 size = b->last - b->pos; |
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|
589 buffered += size; |
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|
590 |
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|
591 if (b->flush || b->last_buf || buffered > conf->postpone_gzipping) { |
2410
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|
592 ctx->buffering = 0; |
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|
593 } |
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Igor Sysoev <igor@sysoev.ru>
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|
594 |
2542
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changeset
|
595 if (ctx->buffering && size) { |
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|
596 |
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|
597 buf = ngx_create_temp_buf(r->pool, size); |
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|
598 if (buf == NULL) { |
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|
599 return NGX_ERROR; |
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|
600 } |
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|
601 |
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|
602 buf->last = ngx_cpymem(buf->pos, b->pos, size); |
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|
603 b->pos = b->last; |
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changeset
|
604 |
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|
605 buf->last_buf = b->last_buf; |
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|
606 buf->tag = (ngx_buf_tag_t) &ngx_http_gzip_filter_module; |
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changeset
|
607 |
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|
608 cl->buf = buf; |
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changeset
|
609 |
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|
610 } else { |
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|
611 cl->buf = b; |
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postpone zlib memory allocation
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parents:
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|
612 } |
bbfaeb220e90
postpone zlib memory allocation
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parents:
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diff
changeset
|
613 |
bbfaeb220e90
postpone zlib memory allocation
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changeset
|
614 *ll = cl; |
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postpone zlib memory allocation
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parents:
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changeset
|
615 ll = &cl->next; |
bbfaeb220e90
postpone zlib memory allocation
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parents:
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|
616 in = in->next; |
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postpone zlib memory allocation
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changeset
|
617 } |
bbfaeb220e90
postpone zlib memory allocation
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changeset
|
618 |
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postpone zlib memory allocation
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changeset
|
619 *ll = NULL; |
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postpone zlib memory allocation
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|
620 |
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|
621 return ctx->buffering ? NGX_OK : NGX_DONE; |
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|
622 } |
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changeset
|
623 |
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|
624 |
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changeset
|
625 static ngx_int_t |
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|
626 ngx_http_gzip_filter_deflate_start(ngx_http_request_t *r, |
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|
627 ngx_http_gzip_ctx_t *ctx) |
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|
628 { |
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|
629 int rc; |
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|
630 ngx_http_gzip_conf_t *conf; |
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|
631 |
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|
632 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
2291
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*) split ngx_http_gzip_body_filter()
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|
633 |
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|
634 ctx->preallocated = ngx_palloc(r->pool, ctx->allocated); |
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|
635 if (ctx->preallocated == NULL) { |
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|
636 return NGX_ERROR; |
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Igor Sysoev <igor@sysoev.ru>
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|
637 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
638 |
e9a1cddf2aaa
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|
639 ctx->free_mem = ctx->preallocated; |
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640 |
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|
641 ctx->zstream.zalloc = ngx_http_gzip_filter_alloc; |
e9a1cddf2aaa
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|
642 ctx->zstream.zfree = ngx_http_gzip_filter_free; |
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|
643 ctx->zstream.opaque = ctx; |
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*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
644 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
645 rc = deflateInit2(&ctx->zstream, (int) conf->level, Z_DEFLATED, |
2410
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|
646 - ctx->wbits, ctx->memlevel, Z_DEFAULT_STRATEGY); |
2291
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|
647 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
648 if (rc != Z_OK) { |
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|
649 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
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|
650 "deflateInit2() failed: %d", rc); |
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|
651 return NGX_ERROR; |
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|
652 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
653 |
e9a1cddf2aaa
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|
654 ctx->last_out = &ctx->out; |
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|
655 ctx->crc32 = crc32(0L, Z_NULL, 0); |
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|
656 ctx->flush = Z_NO_FLUSH; |
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|
657 |
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*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
658 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
659 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
660 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
661 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
662 static ngx_int_t |
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|
663 ngx_http_gzip_filter_gzheader(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
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|
664 { |
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|
665 ngx_buf_t *b; |
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|
666 ngx_chain_t *cl; |
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|
667 static u_char gzheader[10] = |
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|
668 { 0x1f, 0x8b, Z_DEFLATED, 0, 0, 0, 0, 0, 0, 3 }; |
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*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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|
669 |
6973
99934aade555
Use ngx_calloc_buf() where appropriate.
Ruslan Ermilov <ru@nginx.com>
parents:
6910
diff
changeset
|
670 b = ngx_calloc_buf(r->pool); |
2291
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|
671 if (b == NULL) { |
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*) split ngx_http_gzip_body_filter()
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|
672 return NGX_ERROR; |
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*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
673 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
674 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
675 b->memory = 1; |
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*) split ngx_http_gzip_body_filter()
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|
676 b->pos = gzheader; |
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*) split ngx_http_gzip_body_filter()
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|
677 b->last = b->pos + 10; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
678 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
679 cl = ngx_alloc_chain_link(r->pool); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
680 if (cl == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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|
681 return NGX_ERROR; |
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*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
682 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
683 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
684 cl->buf = b; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
685 cl->next = ctx->out; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
686 ctx->out = cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
687 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
688 ctx->gzheader = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
689 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
690 return NGX_OK; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
691 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
692 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
693 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
694 static ngx_int_t |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
695 ngx_http_gzip_filter_add_data(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
696 { |
6910
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6480
diff
changeset
|
697 ngx_chain_t *cl; |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
698 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
699 if (ctx->zstream.avail_in || ctx->flush != Z_NO_FLUSH || ctx->redo) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
700 return NGX_OK; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
701 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
702 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
703 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
704 "gzip in: %p", ctx->in); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
705 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
706 if (ctx->in == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
707 return NGX_DECLINED; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
708 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
709 |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
710 if (ctx->copy_buf) { |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
711 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
712 /* |
bbfaeb220e90
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
713 * to avoid CPU cache trashing we do not free() just quit buf, |
bbfaeb220e90
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changeset
|
714 * but postpone free()ing after zlib compressing and data output |
bbfaeb220e90
postpone zlib memory allocation
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parents:
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diff
changeset
|
715 */ |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
716 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
717 ctx->copy_buf->next = ctx->copied; |
bbfaeb220e90
postpone zlib memory allocation
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diff
changeset
|
718 ctx->copied = ctx->copy_buf; |
bbfaeb220e90
postpone zlib memory allocation
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diff
changeset
|
719 ctx->copy_buf = NULL; |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
720 } |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
721 |
6910
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6480
diff
changeset
|
722 cl = ctx->in; |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6480
diff
changeset
|
723 ctx->in_buf = cl->buf; |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
6480
diff
changeset
|
724 ctx->in = cl->next; |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
725 |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
726 if (ctx->in_buf->tag == (ngx_buf_tag_t) &ngx_http_gzip_filter_module) { |
6910
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Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
727 ctx->copy_buf = cl; |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
728 |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
729 } else { |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
730 ngx_free_chain(r->pool, cl); |
2410
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
2292
diff
changeset
|
731 } |
bbfaeb220e90
postpone zlib memory allocation
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
732 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
733 ctx->zstream.next_in = ctx->in_buf->pos; |
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*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
734 ctx->zstream.avail_in = ctx->in_buf->last - ctx->in_buf->pos; |
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*) split ngx_http_gzip_body_filter()
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|
735 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
736 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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|
737 "gzip in_buf:%p ni:%p ai:%ud", |
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|
738 ctx->in_buf, |
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*) split ngx_http_gzip_body_filter()
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|
739 ctx->zstream.next_in, ctx->zstream.avail_in); |
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*) split ngx_http_gzip_body_filter()
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|
740 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
741 if (ctx->in_buf->last_buf) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
742 ctx->flush = Z_FINISH; |
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|
743 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
744 } else if (ctx->in_buf->flush) { |
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*) split ngx_http_gzip_body_filter()
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|
745 ctx->flush = Z_SYNC_FLUSH; |
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|
746 } |
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*) split ngx_http_gzip_body_filter()
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|
747 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
748 if (ctx->zstream.avail_in) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
749 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
750 ctx->crc32 = crc32(ctx->crc32, ctx->zstream.next_in, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
751 ctx->zstream.avail_in); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
752 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
753 } else if (ctx->flush == Z_NO_FLUSH) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
754 return NGX_AGAIN; |
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*) split ngx_http_gzip_body_filter()
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|
755 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
756 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
757 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
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parents:
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|
758 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
759 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
760 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
761 static ngx_int_t |
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|
762 ngx_http_gzip_filter_get_buf(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
763 { |
6910
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
764 ngx_chain_t *cl; |
2291
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*) split ngx_http_gzip_body_filter()
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|
765 ngx_http_gzip_conf_t *conf; |
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*) split ngx_http_gzip_body_filter()
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changeset
|
766 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
767 if (ctx->zstream.avail_out) { |
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*) split ngx_http_gzip_body_filter()
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changeset
|
768 return NGX_OK; |
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*) split ngx_http_gzip_body_filter()
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|
769 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
770 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
771 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
772 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
773 if (ctx->free) { |
6910
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Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
774 |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
775 cl = ctx->free; |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
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parents:
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changeset
|
776 ctx->out_buf = cl->buf; |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
777 ctx->free = cl->next; |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
778 |
da46bfc484ef
Gzip: free chain links on the hot path (ticket #1046).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
779 ngx_free_chain(r->pool, cl); |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
780 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
781 } else if (ctx->bufs < conf->bufs.num) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
782 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
783 ctx->out_buf = ngx_create_temp_buf(r->pool, conf->bufs.size); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
784 if (ctx->out_buf == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
785 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
786 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
787 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
788 ctx->out_buf->tag = (ngx_buf_tag_t) &ngx_http_gzip_filter_module; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
789 ctx->out_buf->recycled = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
790 ctx->bufs++; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
791 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
792 } else { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
793 ctx->nomem = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
794 return NGX_DECLINED; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
795 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
796 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
797 ctx->zstream.next_out = ctx->out_buf->pos; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
798 ctx->zstream.avail_out = conf->bufs.size; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
799 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
800 return NGX_OK; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
801 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
802 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
803 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
804 static ngx_int_t |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
805 ngx_http_gzip_filter_deflate(ngx_http_request_t *r, ngx_http_gzip_ctx_t *ctx) |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
806 { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
807 int rc; |
4468
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
808 ngx_buf_t *b; |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
809 ngx_chain_t *cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
810 ngx_http_gzip_conf_t *conf; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
811 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
812 ngx_log_debug6(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
813 "deflate in: ni:%p no:%p ai:%ud ao:%ud fl:%d redo:%d", |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
814 ctx->zstream.next_in, ctx->zstream.next_out, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
815 ctx->zstream.avail_in, ctx->zstream.avail_out, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
816 ctx->flush, ctx->redo); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
817 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
818 rc = deflate(&ctx->zstream, ctx->flush); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
819 |
4468
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
820 if (rc != Z_OK && rc != Z_STREAM_END && rc != Z_BUF_ERROR) { |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
821 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
822 "deflate() failed: %d, %d", ctx->flush, rc); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
823 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
824 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
825 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
826 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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changeset
|
827 "deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d", |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
828 ctx->zstream.next_in, ctx->zstream.next_out, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
829 ctx->zstream.avail_in, ctx->zstream.avail_out, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
830 rc); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
831 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
832 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
833 "gzip in_buf:%p pos:%p", |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
834 ctx->in_buf, ctx->in_buf->pos); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
835 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
836 if (ctx->zstream.next_in) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
837 ctx->in_buf->pos = ctx->zstream.next_in; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
838 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
839 if (ctx->zstream.avail_in == 0) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
840 ctx->zstream.next_in = NULL; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
841 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
842 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
843 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
844 ctx->out_buf->last = ctx->zstream.next_out; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
845 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
846 if (ctx->zstream.avail_out == 0) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
847 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
848 /* zlib wants to output some more gzipped data */ |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
849 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
850 cl = ngx_alloc_chain_link(r->pool); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
851 if (cl == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
852 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
853 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
854 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
855 cl->buf = ctx->out_buf; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
856 cl->next = NULL; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
857 *ctx->last_out = cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
858 ctx->last_out = &cl->next; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
859 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
860 ctx->redo = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
861 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
862 return NGX_AGAIN; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
863 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
864 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
865 ctx->redo = 0; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
866 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
867 if (ctx->flush == Z_SYNC_FLUSH) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
868 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
869 ctx->flush = Z_NO_FLUSH; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
870 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
871 cl = ngx_alloc_chain_link(r->pool); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
872 if (cl == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
873 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
874 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
875 |
4468
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
876 b = ctx->out_buf; |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
877 |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
878 if (ngx_buf_size(b) == 0) { |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
879 |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
880 b = ngx_calloc_buf(ctx->request->pool); |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
881 if (b == NULL) { |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
882 return NGX_ERROR; |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
883 } |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
884 |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
885 } else { |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
886 ctx->zstream.avail_out = 0; |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
887 } |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
888 |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
889 b->flush = 1; |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
890 |
93dd50a9dc70
Gzip filter: handling of empty flush buffers.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
891 cl->buf = b; |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
892 cl->next = NULL; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
893 *ctx->last_out = cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
894 ctx->last_out = &cl->next; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
895 |
5291
84155a389bcc
Gzip: clearing of c->buffered if all data are flushed.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5107
diff
changeset
|
896 r->connection->buffered &= ~NGX_HTTP_GZIP_BUFFERED; |
84155a389bcc
Gzip: clearing of c->buffered if all data are flushed.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5107
diff
changeset
|
897 |
2291
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
898 return NGX_OK; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
899 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
900 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
901 if (rc == Z_STREAM_END) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
902 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
903 if (ngx_http_gzip_filter_deflate_end(r, ctx) != NGX_OK) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
904 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
905 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
906 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
907 return NGX_OK; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
908 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
909 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
910 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
911 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
912 if (conf->no_buffer && ctx->in == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
913 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
914 cl = ngx_alloc_chain_link(r->pool); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
915 if (cl == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
916 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
917 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
918 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
919 cl->buf = ctx->out_buf; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
920 cl->next = NULL; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
921 *ctx->last_out = cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
922 ctx->last_out = &cl->next; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
923 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
924 return NGX_OK; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
925 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
926 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
927 return NGX_AGAIN; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
928 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
929 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
930 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
931 static ngx_int_t |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
932 ngx_http_gzip_filter_deflate_end(ngx_http_request_t *r, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
933 ngx_http_gzip_ctx_t *ctx) |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
934 { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
935 int rc; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
936 ngx_buf_t *b; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
937 ngx_chain_t *cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
938 struct gztrailer *trailer; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
939 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
940 ctx->zin = ctx->zstream.total_in; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
941 ctx->zout = 10 + ctx->zstream.total_out + 8; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
942 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
943 rc = deflateEnd(&ctx->zstream); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
944 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
945 if (rc != Z_OK) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
946 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2290
diff
changeset
|
947 "deflateEnd() failed: %d", rc); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
948 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
949 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
950 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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changeset
|
951 ngx_pfree(r->pool, ctx->preallocated); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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changeset
|
952 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
953 cl = ngx_alloc_chain_link(r->pool); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
954 if (cl == NULL) { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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|
955 return NGX_ERROR; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
956 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
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|
957 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
958 cl->buf = ctx->out_buf; |
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*) split ngx_http_gzip_body_filter()
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parents:
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|
959 cl->next = NULL; |
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parents:
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diff
changeset
|
960 *ctx->last_out = cl; |
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*) split ngx_http_gzip_body_filter()
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parents:
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|
961 ctx->last_out = &cl->next; |
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parents:
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|
962 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
963 if (ctx->zstream.avail_out >= 8) { |
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parents:
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|
964 trailer = (struct gztrailer *) ctx->out_buf->last; |
e9a1cddf2aaa
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parents:
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|
965 ctx->out_buf->last += 8; |
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parents:
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|
966 ctx->out_buf->last_buf = 1; |
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|
967 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
968 } else { |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
969 b = ngx_create_temp_buf(r->pool, 8); |
e9a1cddf2aaa
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parents:
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changeset
|
970 if (b == NULL) { |
e9a1cddf2aaa
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parents:
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changeset
|
971 return NGX_ERROR; |
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parents:
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|
972 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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|
973 |
e9a1cddf2aaa
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parents:
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changeset
|
974 b->last_buf = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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|
975 |
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changeset
|
976 cl = ngx_alloc_chain_link(r->pool); |
e9a1cddf2aaa
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|
977 if (cl == NULL) { |
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parents:
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|
978 return NGX_ERROR; |
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parents:
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|
979 } |
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|
980 |
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changeset
|
981 cl->buf = b; |
e9a1cddf2aaa
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|
982 cl->next = NULL; |
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parents:
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|
983 *ctx->last_out = cl; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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|
984 ctx->last_out = &cl->next; |
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parents:
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|
985 trailer = (struct gztrailer *) b->pos; |
e9a1cddf2aaa
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parents:
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changeset
|
986 b->last += 8; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
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changeset
|
987 } |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
988 |
e9a1cddf2aaa
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2290
diff
changeset
|
989 #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED) |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
990 |
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*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
991 trailer->crc32 = ctx->crc32; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
992 trailer->zlen = ctx->zin; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
993 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
994 #else |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
995 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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changeset
|
996 trailer->crc32[0] = (u_char) (ctx->crc32 & 0xff); |
e9a1cddf2aaa
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parents:
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diff
changeset
|
997 trailer->crc32[1] = (u_char) ((ctx->crc32 >> 8) & 0xff); |
e9a1cddf2aaa
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parents:
2290
diff
changeset
|
998 trailer->crc32[2] = (u_char) ((ctx->crc32 >> 16) & 0xff); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
999 trailer->crc32[3] = (u_char) ((ctx->crc32 >> 24) & 0xff); |
e9a1cddf2aaa
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changeset
|
1000 |
e9a1cddf2aaa
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parents:
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changeset
|
1001 trailer->zlen[0] = (u_char) (ctx->zin & 0xff); |
e9a1cddf2aaa
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parents:
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changeset
|
1002 trailer->zlen[1] = (u_char) ((ctx->zin >> 8) & 0xff); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
1003 trailer->zlen[2] = (u_char) ((ctx->zin >> 16) & 0xff); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
1004 trailer->zlen[3] = (u_char) ((ctx->zin >> 24) & 0xff); |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
1005 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
1006 #endif |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
1007 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
1008 ctx->zstream.avail_in = 0; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
1009 ctx->zstream.avail_out = 0; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
1010 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
1011 ctx->done = 1; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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diff
changeset
|
1012 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
2290
diff
changeset
|
1013 r->connection->buffered &= ~NGX_HTTP_GZIP_BUFFERED; |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
1014 |
e9a1cddf2aaa
*) split ngx_http_gzip_body_filter()
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parents:
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diff
changeset
|
1015 return NGX_OK; |
133
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1016 } |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1017 |
b27548f540ad
nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1018 |
497 | 1019 static void * |
1020 ngx_http_gzip_filter_alloc(void *opaque, u_int items, u_int size) | |
156
afc333135a6b
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155
diff
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|
1021 { |
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155
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|
1022 ngx_http_gzip_ctx_t *ctx = opaque; |
afc333135a6b
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diff
changeset
|
1023 |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
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parents:
292
diff
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|
1024 void *p; |
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
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292
diff
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|
1025 ngx_uint_t alloc; |
156
afc333135a6b
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155
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|
1026 |
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155
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|
1027 alloc = items * size; |
461 | 1028 |
7155
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1029 if (items == 1 && alloc % 512 != 0 && alloc < 8192) { |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
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|
1030 |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
344
diff
changeset
|
1031 /* |
461 | 1032 * The zlib deflate_state allocation, it takes about 6K, |
1033 * we allocate 8K. Other allocations are divisible by 512. | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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344
diff
changeset
|
1034 */ |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
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|
1035 |
2425
3d60d55b9ad0
do not try to align to a page size, allocate just 8K,
Igor Sysoev <igor@sysoev.ru>
parents:
2412
diff
changeset
|
1036 alloc = 8192; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
changeset
|
1037 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
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|
1038 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
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|
1039 if (alloc <= ctx->allocated) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
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|
1040 p = ctx->free_mem; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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|
1041 ctx->free_mem += alloc; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
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|
1042 ctx->allocated -= alloc; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
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|
1043 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
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parents:
243
diff
changeset
|
1044 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, |
6480 | 1045 "gzip alloc: n:%ud s:%ud a:%ui p:%p", |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
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243
diff
changeset
|
1046 items, size, alloc, p); |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
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|
1047 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
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|
1048 return p; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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155
diff
changeset
|
1049 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
changeset
|
1050 |
7155
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1051 if (ctx->intel) { |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1052 ngx_log_error(NGX_LOG_ALERT, ctx->request->connection->log, 0, |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1053 "gzip filter failed to use preallocated memory: " |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1054 "%ud of %ui", items * size, ctx->allocated); |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1055 |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1056 } else { |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1057 ngx_http_gzip_assume_intel = 1; |
29e9571b1989
Gzip: support for a zlib variant from Intel.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7033
diff
changeset
|
1058 } |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
changeset
|
1059 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1060 p = ngx_palloc(ctx->request->pool, items * size); |
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1061 |
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1062 return p; |
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diff
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1063 } |
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diff
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|
1064 |
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1065 |
497 | 1066 static void |
1067 ngx_http_gzip_filter_free(void *opaque, void *address) | |
156
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diff
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1068 { |
282
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265
diff
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|
1069 #if 0 |
156
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diff
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|
1070 ngx_http_gzip_ctx_t *ctx = opaque; |
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diff
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|
1071 |
257
70e1c7d2b83d
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243
diff
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|
1072 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0, |
461 | 1073 "gzip free: %p", address); |
156
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diff
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|
1074 #endif |
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diff
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1075 } |
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|
1076 |
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diff
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|
1077 |
2410
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postpone zlib memory allocation
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diff
changeset
|
1078 static void |
bbfaeb220e90
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diff
changeset
|
1079 ngx_http_gzip_filter_free_copy_buf(ngx_http_request_t *r, |
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|
1080 ngx_http_gzip_ctx_t *ctx) |
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diff
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|
1081 { |
bbfaeb220e90
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|
1082 ngx_chain_t *cl; |
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|
1083 |
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diff
changeset
|
1084 for (cl = ctx->copied; cl; cl = cl->next) { |
bbfaeb220e90
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parents:
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diff
changeset
|
1085 ngx_pfree(r->pool, cl->buf->start); |
bbfaeb220e90
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parents:
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diff
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|
1086 } |
bbfaeb220e90
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parents:
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diff
changeset
|
1087 |
bbfaeb220e90
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parents:
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diff
changeset
|
1088 ctx->copied = NULL; |
bbfaeb220e90
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parents:
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diff
changeset
|
1089 } |
bbfaeb220e90
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parents:
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diff
changeset
|
1090 |
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parents:
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|
1091 |
497 | 1092 static ngx_int_t |
573 | 1093 ngx_http_gzip_add_variables(ngx_conf_t *cf) |
177
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diff
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|
1094 { |
880 | 1095 ngx_http_variable_t *var; |
177
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diff
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|
1096 |
583 | 1097 var = ngx_http_add_variable(cf, &ngx_http_gzip_ratio, NGX_HTTP_VAR_NOHASH); |
573 | 1098 if (var == NULL) { |
1099 return NGX_ERROR; | |
1100 } | |
1101 | |
637 | 1102 var->get_handler = ngx_http_gzip_ratio_variable; |
573 | 1103 |
177
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diff
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|
1104 return NGX_OK; |
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parents:
166
diff
changeset
|
1105 } |
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parents:
166
diff
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|
1106 |
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166
diff
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|
1107 |
497 | 1108 static ngx_int_t |
573 | 1109 ngx_http_gzip_ratio_variable(ngx_http_request_t *r, |
1110 ngx_http_variable_value_t *v, uintptr_t data) | |
1111 { | |
1112 ngx_uint_t zint, zfrac; | |
1113 ngx_http_gzip_ctx_t *ctx; | |
1114 | |
1115 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module); | |
1116 | |
1117 if (ctx == NULL || ctx->zout == 0) { | |
1118 v->not_found = 1; | |
1119 return NGX_OK; | |
1120 } | |
1121 | |
7033
ab5117642647
Gzip: fixed style in $gzip_ratio variable handler.
Ruslan Ermilov <ru@nginx.com>
parents:
6973
diff
changeset
|
1122 v->valid = 1; |
ab5117642647
Gzip: fixed style in $gzip_ratio variable handler.
Ruslan Ermilov <ru@nginx.com>
parents:
6973
diff
changeset
|
1123 v->no_cacheable = 0; |
ab5117642647
Gzip: fixed style in $gzip_ratio variable handler.
Ruslan Ermilov <ru@nginx.com>
parents:
6973
diff
changeset
|
1124 v->not_found = 0; |
ab5117642647
Gzip: fixed style in $gzip_ratio variable handler.
Ruslan Ermilov <ru@nginx.com>
parents:
6973
diff
changeset
|
1125 |
2049 | 1126 v->data = ngx_pnalloc(r->pool, NGX_INT32_LEN + 3); |
573 | 1127 if (v->data == NULL) { |
1128 return NGX_ERROR; | |
1129 } | |
1130 | |
1131 zint = (ngx_uint_t) (ctx->zin / ctx->zout); | |
1132 zfrac = (ngx_uint_t) ((ctx->zin * 100 / ctx->zout) % 100); | |
1133 | |
1134 if ((ctx->zin * 1000 / ctx->zout) % 10 > 4) { | |
1135 | |
1136 /* the rounding, e.g., 2.125 to 2.13 */ | |
1137 | |
1138 zfrac++; | |
1139 | |
1140 if (zfrac > 99) { | |
1141 zint++; | |
1142 zfrac = 0; | |
1143 } | |
1144 } | |
1145 | |
1146 v->len = ngx_sprintf(v->data, "%ui.%02ui", zint, zfrac) - v->data; | |
1147 | |
1148 return NGX_OK; | |
1149 } | |
1150 | |
1151 | |
497 | 1152 static void * |
1153 ngx_http_gzip_create_conf(ngx_conf_t *cf) | |
134
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|
1154 { |
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|
1155 ngx_http_gzip_conf_t *conf; |
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1156 |
501 | 1157 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_gzip_conf_t)); |
1158 if (conf == NULL) { | |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2542
diff
changeset
|
1159 return NULL; |
430
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parents:
416
diff
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|
1160 } |
134
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|
1161 |
430
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nginx-0.0.11-2004-09-19-22:27:00 import
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parents:
416
diff
changeset
|
1162 /* |
479 | 1163 * set by ngx_pcalloc(): |
1164 * | |
1165 * conf->bufs.num = 0; | |
2166
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1166 * conf->types = { NULL }; |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
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parents:
2051
diff
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|
1167 * conf->types_keys = NULL; |
430
1fa5daf7558e
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parents:
416
diff
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|
1168 */ |
320
d621239c30f7
nginx-0.0.3-2004-04-18-23:06:02 import
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parents:
319
diff
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|
1169 |
134
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diff
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|
1170 conf->enable = NGX_CONF_UNSET; |
290
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
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289
diff
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|
1171 conf->no_buffer = NGX_CONF_UNSET; |
314
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294
diff
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|
1172 |
2542
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fix postponed zlib memory allocation, introduced in r2411
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parents:
2536
diff
changeset
|
1173 conf->postpone_gzipping = NGX_CONF_UNSET_SIZE; |
156
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diff
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|
1174 conf->level = NGX_CONF_UNSET; |
2542
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fix postponed zlib memory allocation, introduced in r2411
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parents:
2536
diff
changeset
|
1175 conf->wbits = NGX_CONF_UNSET_SIZE; |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
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parents:
2536
diff
changeset
|
1176 conf->memlevel = NGX_CONF_UNSET_SIZE; |
356
2e3cbc1bbe3c
nginx-0.0.7-2004-06-16-19:32:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
355
diff
changeset
|
1177 conf->min_length = NGX_CONF_UNSET; |
134
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|
1178 |
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|
1179 return conf; |
d57c6835225c
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|
1180 } |
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|
1181 |
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133
diff
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|
1182 |
497 | 1183 static char * |
1184 ngx_http_gzip_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
134
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diff
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|
1185 { |
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diff
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|
1186 ngx_http_gzip_conf_t *prev = parent; |
d57c6835225c
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diff
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|
1187 ngx_http_gzip_conf_t *conf = child; |
d57c6835225c
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133
diff
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|
1188 |
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133
diff
changeset
|
1189 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
2542
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
1190 ngx_conf_merge_value(conf->no_buffer, prev->no_buffer, 0); |
314
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294
diff
changeset
|
1191 |
2412
086c20fe2e97
set default gzip_buffers to 32 4k or 16 8k
Igor Sysoev <igor@sysoev.ru>
parents:
2410
diff
changeset
|
1192 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, |
086c20fe2e97
set default gzip_buffers to 32 4k or 16 8k
Igor Sysoev <igor@sysoev.ru>
parents:
2410
diff
changeset
|
1193 (128 * 1024) / ngx_pagesize, ngx_pagesize); |
314
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294
diff
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|
1194 |
2542
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
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parents:
2536
diff
changeset
|
1195 ngx_conf_merge_size_value(conf->postpone_gzipping, prev->postpone_gzipping, |
925b5df2e0c2
fix postponed zlib memory allocation, introduced in r2411
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
1196 0); |
156
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parents:
155
diff
changeset
|
1197 ngx_conf_merge_value(conf->level, prev->level, 1); |
319
7a8ebba985a9
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parents:
315
diff
changeset
|
1198 ngx_conf_merge_size_value(conf->wbits, prev->wbits, MAX_WBITS); |
7a8ebba985a9
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parents:
315
diff
changeset
|
1199 ngx_conf_merge_size_value(conf->memlevel, prev->memlevel, |
7a8ebba985a9
nginx-0.0.3-2004-04-16-19:27:31 import
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parents:
315
diff
changeset
|
1200 MAX_MEM_LEVEL - 1); |
577 | 1201 ngx_conf_merge_value(conf->min_length, prev->min_length, 20); |
134
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133
diff
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|
1202 |
3372
6b8e5c882e47
support "*" in gzip_types, ssi_types, etc
Igor Sysoev <igor@sysoev.ru>
parents:
3314
diff
changeset
|
1203 if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types, |
6b8e5c882e47
support "*" in gzip_types, ssi_types, etc
Igor Sysoev <igor@sysoev.ru>
parents:
3314
diff
changeset
|
1204 &prev->types_keys, &prev->types, |
2166
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1205 ngx_http_html_default_types) |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1206 != NGX_OK) |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1207 { |
723df5089c05
use hash in gzip_types, ssi_types, and sub_filter_types
Igor Sysoev <igor@sysoev.ru>
parents:
2051
diff
changeset
|
1208 return NGX_CONF_ERROR; |
452 | 1209 } |
1210 | |
1211 return NGX_CONF_OK; | |
1212 } | |
1213 | |
1214 | |
681 | 1215 static ngx_int_t |
1216 ngx_http_gzip_filter_init(ngx_conf_t *cf) | |
1217 { | |
1218 ngx_http_next_header_filter = ngx_http_top_header_filter; | |
1219 ngx_http_top_header_filter = ngx_http_gzip_header_filter; | |
1220 | |
1221 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
1222 ngx_http_top_body_filter = ngx_http_gzip_body_filter; | |
1223 | |
1224 return NGX_OK; | |
1225 } | |
1226 | |
1227 | |
497 | 1228 static char * |
527 | 1229 ngx_http_gzip_window(ngx_conf_t *cf, void *post, void *data) |
156
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parents:
155
diff
changeset
|
1230 { |
2290 | 1231 size_t *np = data; |
156
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nginx-0.0.1-2003-10-23-10:13:16 import
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parents:
155
diff
changeset
|
1232 |
2290 | 1233 size_t wbits, wsize; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1234 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1235 wbits = 15; |
156
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nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1236 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1237 for (wsize = 32 * 1024; wsize > 256; wsize >>= 1) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1238 |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1239 if (wsize == *np) { |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1240 *np = wbits; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1241 |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1242 return NGX_CONF_OK; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1243 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1244 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1245 wbits--; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1246 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1247 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1248 return "must be 512, 1k, 2k, 4k, 8k, 16k, or 32k"; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1249 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1250 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1251 |
497 | 1252 static char * |
527 | 1253 ngx_http_gzip_hash(ngx_conf_t *cf, void *post, void *data) |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1254 { |
2290 | 1255 size_t *np = data; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1256 |
2290 | 1257 size_t memlevel, hsize; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1258 |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1259 memlevel = 9; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1260 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1261 for (hsize = 128 * 1024; hsize > 256; hsize >>= 1) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1262 |
158
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1263 if (hsize == *np) { |
d377ee423603
nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
157
diff
changeset
|
1264 *np = memlevel; |
430
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1265 |
1fa5daf7558e
nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
416
diff
changeset
|
1266 return NGX_CONF_OK; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1267 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1268 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1269 memlevel--; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1270 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1271 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1272 return "must be 512, 1k, 2k, 4k, 8k, 16k, 32k, 64k, or 128k"; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
1273 } |