annotate src/http/modules/ngx_http_gzip_filter.c @ 314:d71c87d11b16

nginx-0.0.3-2004-04-14-09:57:36 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 14 Apr 2004 05:57:36 +0000
parents 5cfd65b8b0a7
children 39b6f2df45c0
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1
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2 #include <ngx_config.h>
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3 #include <ngx_core.h>
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4 #include <ngx_http.h>
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5
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6 #include <zlib.h>
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7
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9 typedef struct {
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10 ngx_flag_t enable;
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11 ngx_flag_t no_buffer;
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12
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13 ngx_bufs_t bufs;
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14
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15 ngx_uint_t http_version;
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16 ngx_uint_t proxied;
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17
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18 int level;
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19 int wbits;
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20 int memlevel;
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21 } ngx_http_gzip_conf_t;
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23
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24 enum {
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25 NGX_HTTP_GZIP_PROXIED_OFF = 0,
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26 NGX_HTTP_GZIP_PROXIED_NOCACHABLE,
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27 NGX_HTTP_GZIP_PROXIED_POOR_CACHABLE,
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28 NGX_HTTP_GZIP_PROXIED_ON
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29 };
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30
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31
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32 typedef struct {
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33 ngx_chain_t *in;
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34 ngx_chain_t *free;
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35 ngx_chain_t *busy;
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36 ngx_chain_t *out;
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37 ngx_chain_t **last_out;
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38 ngx_hunk_t *in_hunk;
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39 ngx_hunk_t *out_hunk;
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40 int hunks;
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41
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42 off_t length;
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43
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44 void *preallocated;
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45 char *free_mem;
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46 ngx_uint_t allocated;
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47
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48 unsigned flush:4;
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49 unsigned redo:1;
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50 unsigned done:1;
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51
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52 size_t zin;
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53 size_t zout;
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54
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55 uint32_t crc32;
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56 z_stream zstream;
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57 ngx_http_request_t *request;
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58 } ngx_http_gzip_ctx_t;
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61 static void *ngx_http_gzip_filter_alloc(void *opaque, u_int items,
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62 u_int size);
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63 static void ngx_http_gzip_filter_free(void *opaque, void *address);
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64
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65 ngx_inline static int ngx_http_gzip_error(ngx_http_gzip_ctx_t *ctx);
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66
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67 static u_char *ngx_http_gzip_log_ratio(ngx_http_request_t *r, u_char *buf,
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68 uintptr_t data);
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69
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70 static int ngx_http_gzip_pre_conf(ngx_conf_t *cf);
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71 static int ngx_http_gzip_filter_init(ngx_cycle_t *cycle);
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72 static void *ngx_http_gzip_create_conf(ngx_conf_t *cf);
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73 static char *ngx_http_gzip_merge_conf(ngx_conf_t *cf,
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74 void *parent, void *child);
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75 static char *ngx_http_gzip_set_window(ngx_conf_t *cf, void *post, void *data);
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76 static char *ngx_http_gzip_set_hash(ngx_conf_t *cf, void *post, void *data);
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77
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79 static ngx_conf_num_bounds_t ngx_http_gzip_comp_level_bounds = {
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80 ngx_conf_check_num_bounds, 1, 9
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81 };
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82
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83 static ngx_conf_post_handler_pt ngx_http_gzip_set_window_p =
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84 ngx_http_gzip_set_window;
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85 static ngx_conf_post_handler_pt ngx_http_gzip_set_hash_p =
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86 ngx_http_gzip_set_hash;
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87
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89
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90 static ngx_conf_enum_t ngx_http_gzip_http_version[] = {
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91 { ngx_string("1.0"), NGX_HTTP_VERSION_10 },
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92 { ngx_string("1.1"), NGX_HTTP_VERSION_11 },
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93 { ngx_null_string, 0 }
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94 };
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95
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96
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97 static ngx_conf_enum_t ngx_http_gzip_proxied[] = {
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98 { ngx_string("off"), NGX_HTTP_GZIP_PROXIED_OFF },
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99 #if 0
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100 { ngx_string("nocachable"), NGX_HTTP_GZIP_PROXIED_NOCACHABLE },
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101 { ngx_string("poor_cachable"), NGX_HTTP_GZIP_PROXIED_POOR_CACHABLE },
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102 #endif
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103 { ngx_string("on"), NGX_HTTP_GZIP_PROXIED_ON },
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104 { ngx_null_string, 0 }
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105 };
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106
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107
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108 static ngx_command_t ngx_http_gzip_filter_commands[] = {
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109
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110 { ngx_string("gzip"),
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111 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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112 ngx_conf_set_flag_slot,
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113 NGX_HTTP_LOC_CONF_OFFSET,
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114 offsetof(ngx_http_gzip_conf_t, enable),
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parents: 177
diff changeset
115 NULL},
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
116
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
117 { 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
118 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
119 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
120 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
121 offsetof(ngx_http_gzip_conf_t, bufs),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
122 NULL},
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
123
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
124 { 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
125 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
126 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
127 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
128 offsetof(ngx_http_gzip_conf_t, level),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
129 &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
130
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
131 { 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
132 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
133 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
134 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
135 offsetof(ngx_http_gzip_conf_t, wbits),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
136 &ngx_http_gzip_set_window_p},
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
137
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
138 { 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
139 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
140 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
141 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
142 offsetof(ngx_http_gzip_conf_t, memlevel),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
143 &ngx_http_gzip_set_hash_p},
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
144
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
145 { 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
146 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
147 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
148 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
149 offsetof(ngx_http_gzip_conf_t, no_buffer),
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
150 NULL},
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
151
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
152 { ngx_string("gzip_http_version"),
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
153 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_ANY,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
154 ngx_conf_set_enum_slot,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
155 NGX_HTTP_LOC_CONF_OFFSET,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
156 offsetof(ngx_http_gzip_conf_t, http_version),
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
157 &ngx_http_gzip_http_version },
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
158
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
159 { ngx_string("gzip_proxied"),
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
160 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_ANY,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
161 ngx_conf_set_enum_slot,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
162 NGX_HTTP_LOC_CONF_OFFSET,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
163 offsetof(ngx_http_gzip_conf_t, proxied),
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
164 &ngx_http_gzip_proxied },
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
165
239
574bea0142be nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 177
diff changeset
166 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
167 };
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
169
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
170 static ngx_http_module_t ngx_http_gzip_filter_module_ctx = {
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
171 ngx_http_gzip_pre_conf, /* pre conf */
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
172
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
173 NULL, /* create main configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174 NULL, /* init main configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
176 NULL, /* create server configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
177 NULL, /* merge server configuration */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
179 ngx_http_gzip_create_conf, /* create location configuration */
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
180 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
181 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
182
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
183
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
184 ngx_module_t ngx_http_gzip_filter_module = {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185 NGX_MODULE,
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
186 &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
187 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
188 NGX_HTTP_MODULE, /* module type */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189 ngx_http_gzip_filter_init, /* init module */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
190 NULL /* init child */
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191 };
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
193
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
194 static ngx_http_log_op_name_t ngx_http_gzip_log_fmt_ops[] = {
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
195 { ngx_string("gzip_ratio"), NGX_INT32_LEN + 3, ngx_http_gzip_log_ratio },
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
196 { ngx_null_string, 0, NULL }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
197 };
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
198
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
199
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
200
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
201 static u_char gzheader[10] = { 0x1f, 0x8b, Z_DEFLATED, 0, 0, 0, 0, 0, 0, 3 };
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
202
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
203 #if (HAVE_LITTLE_ENDIAN)
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
204
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
205 struct gztrailer {
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
206 uint32_t crc32;
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
207 uint32_t zlen;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
208 };
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
209
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
210 #else /* HAVE_BIG_ENDIAN */
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
211
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
212 struct gztrailer {
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
213 u_char crc32[4];
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
214 u_char zlen[4];
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
215 };
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
216
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
217 #endif
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
218
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
220 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
221 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
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
222
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
223
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
224 static int ngx_http_gzip_header_filter(ngx_http_request_t *r)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
225 {
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
226 ngx_http_gzip_ctx_t *ctx;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
227 ngx_http_gzip_conf_t *conf;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
228
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
229 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
230
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
231 if (!conf->enable
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
232 || r->headers_out.status != NGX_HTTP_OK
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
233 || r->header_only
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
234 || r->http_version < conf->http_version
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
235 || (r->headers_out.content_encoding
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
236 && r->headers_out.content_encoding->value.len)
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
237 || r->headers_in.accept_encoding == NULL
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
238 || ngx_strstr(r->headers_in.accept_encoding->value.data, "gzip") == NULL
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
239 )
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
240 {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
241 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
242 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
243
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
244 /* TODO: "text/html" -> custom types */
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
245 if (r->headers_out.content_type
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
246 && ngx_strncasecmp(r->headers_out.content_type->value.data,
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
247 "text/html", 5) != 0)
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248 {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
249 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
250 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
251
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
252
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
253 /* TODO: proxied */
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
254 if (r->headers_in.via && conf->proxied == NGX_HTTP_GZIP_PROXIED_OFF) {
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
255 return ngx_http_next_header_filter(r);
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
256 }
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
257
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
258
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
259 /*
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
260 * if the URL (without the "http://" prefix) is longer than 253 bytes
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
261 * then MSIE 4.x can not handle the compressed stream - it waits too long,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
262 * hangs up or crashes
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
263 */
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
264
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
265 if (r->headers_in.user_agent
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
266 && r->unparsed_uri.len > 200
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
267 && ngx_strstr(r->headers_in.user_agent->value.data, "MSIE 4"))
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
268 {
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
269 return ngx_http_next_header_filter(r);
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
270 }
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
271
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
272
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
273 ngx_http_create_ctx(r, ctx, 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
274 sizeof(ngx_http_gzip_ctx_t), NGX_ERROR);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
275 ctx->request = r;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
276
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 165
diff changeset
277 r->headers_out.content_encoding =
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 165
diff changeset
278 ngx_http_add_header(&r->headers_out, ngx_http_headers_out);
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 165
diff changeset
279 if (r->headers_out.content_encoding == NULL) {
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
280 return NGX_ERROR;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
281 }
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
282
165
894a01c6aea3 nginx-0.0.1-2003-10-29-20:39:05 import
Igor Sysoev <igor@sysoev.ru>
parents: 164
diff changeset
283 r->headers_out.content_encoding->key.len = sizeof("Content-Encoding") - 1;
292
a472bfb778b3 nginx-0.0.3-2004-03-17-00:26:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
284 r->headers_out.content_encoding->key.data = (u_char *) "Content-Encoding";
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
285 r->headers_out.content_encoding->value.len = sizeof("gzip") - 1;
292
a472bfb778b3 nginx-0.0.3-2004-03-17-00:26:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
286 r->headers_out.content_encoding->value.data = (u_char *) "gzip";
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
287
153
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
288 ctx->length = r->headers_out.content_length_n;
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
289 r->headers_out.content_length_n = -1;
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
290 if (r->headers_out.content_length) {
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
291 r->headers_out.content_length->key.len = 0;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
292 r->headers_out.content_length = NULL;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
293 }
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
294 r->filter |= NGX_HTTP_FILTER_NEED_IN_MEMORY;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
295
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
296 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
297 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
298
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
299
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
300 static int ngx_http_gzip_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
301 {
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
302 int rc, wbits, memlevel, last;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
303 struct gztrailer *trailer;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
304 ngx_hunk_t *h;
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
305 ngx_chain_t *cl;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
306 ngx_http_gzip_ctx_t *ctx;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
307 ngx_http_gzip_conf_t *conf;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
308
243
bf2faf694c19 nginx-0.0.1-2004-01-28-23:38:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 239
diff changeset
309 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
310
243
bf2faf694c19 nginx-0.0.1-2004-01-28-23:38:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 239
diff changeset
311 if (ctx == NULL || ctx->done) {
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
312 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
313 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
314
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
315 conf = ngx_http_get_module_loc_conf(r, ngx_http_gzip_filter_module);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
316
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
317 if (ctx->preallocated == NULL) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
318 wbits = conf->wbits;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
319 memlevel = conf->memlevel;
136
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
320
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
321 if (ctx->length > 0) {
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
322
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
323 /* the actual zlib window size is smaller by 262 bytes */
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
324
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
325 while (ctx->length < ((1 << (wbits - 1)) - 262)) {
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
326 wbits--;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
327 memlevel--;
136
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
328 }
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
329 }
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
330
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
331 /*
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
332 * We preallocate a memory for zlib in one hunk (200K-400K), this
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
333 * dicreases a number of malloc() and free() calls and also probably
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
334 * dicreases a number of syscalls.
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
335 * Besides we free() this memory as soon as the gzipping will complete
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
336 * and do not wait while a whole response will be sent to a client.
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
337 *
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
338 * 8K is for zlib deflate_state (~6K).
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
339 *
157
70b36c805682 nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents: 156
diff changeset
340 * TODO: 64-bit, round to PAGE_SIZE, autoconf of deflate_state size
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
341 */
136
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
342
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
343 ctx->allocated = 8192 + (1 << (wbits + 2)) + (1 << (memlevel + 9));
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
344
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
345 ngx_test_null(ctx->preallocated, ngx_palloc(r->pool, ctx->allocated),
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
346 NGX_ERROR);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
347 ctx->free_mem = ctx->preallocated;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
348
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
349 ctx->zstream.zalloc = ngx_http_gzip_filter_alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
350 ctx->zstream.zfree = ngx_http_gzip_filter_free;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
351 ctx->zstream.opaque = ctx;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
352
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
353 rc = deflateInit2(&ctx->zstream, conf->level, Z_DEFLATED,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
354 -wbits, memlevel, Z_DEFAULT_STRATEGY);
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
355
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
356 if (rc != Z_OK) {
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
357 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
358 "deflateInit2() failed: %d", rc);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
359 return ngx_http_gzip_error(ctx);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
360 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
361
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
362 ngx_test_null(h, ngx_calloc_hunk(r->pool), ngx_http_gzip_error(ctx));
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
363
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
364 h->type = NGX_HUNK_IN_MEMORY|NGX_HUNK_MEMORY;
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
365 h->pos = gzheader;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
366 h->last = h->pos + 10;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
367
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
368 ngx_alloc_link_and_set_hunk(cl, h, r->pool, ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
369 ctx->out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
370 ctx->last_out = &cl->next;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
371
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
372 ctx->crc32 = crc32(0L, Z_NULL, 0);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
373 ctx->flush = Z_NO_FLUSH;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
374 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
375
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
376 if (in) {
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
377 if (ngx_chain_add_copy(r->pool, &ctx->in, in) == NGX_ERROR) {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
378 return ngx_http_gzip_error(ctx);
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
379 }
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
380 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
381
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
382 last = NGX_NONE;
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
383
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
384 for ( ;; ) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
385
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
386 for ( ;; ) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
387
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
388 /* is there a data to gzip ? */
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
389
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
390 if (ctx->zstream.avail_in == 0
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
391 && ctx->flush == Z_NO_FLUSH
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
392 && !ctx->redo) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
393
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
394 if (ctx->in == NULL) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
395 break;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
396 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
397
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
398 ctx->in_hunk = ctx->in->hunk;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
399 ctx->in = ctx->in->next;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
400
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
401 ctx->zstream.next_in = (u_char *) ctx->in_hunk->pos;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
402 ctx->zstream.avail_in = ctx->in_hunk->last - ctx->in_hunk->pos;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
403
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
404 if (ctx->in_hunk->type & NGX_HUNK_LAST) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
405 ctx->flush = Z_FINISH;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
406
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
407 } else if (ctx->in_hunk->type & NGX_HUNK_FLUSH) {
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
408 ctx->flush = Z_SYNC_FLUSH;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
409 }
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
410
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
411 if (ctx->zstream.avail_in == 0) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
412 if (ctx->flush == Z_NO_FLUSH) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
413 continue;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
414 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
415
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
416 } else {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
417 ctx->crc32 = crc32(ctx->crc32, ctx->zstream.next_in,
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
418 ctx->zstream.avail_in);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
419 }
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
420 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
421
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
422 /* is there a space for the gzipped data ? */
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
423
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
424 if (ctx->zstream.avail_out == 0) {
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
425 if (ctx->free) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
426 ctx->out_hunk = ctx->free->hunk;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
427 ctx->free = ctx->free->next;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
428
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
429 } else if (ctx->hunks < conf->bufs.num) {
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
430 ngx_test_null(ctx->out_hunk,
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 165
diff changeset
431 ngx_create_temp_hunk(r->pool, conf->bufs.size),
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 165
diff changeset
432 ngx_http_gzip_error(ctx));
154
eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
433 ctx->out_hunk->tag = (ngx_hunk_tag_t)
eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
434 &ngx_http_gzip_filter_module;
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
435 ctx->out_hunk->type |= NGX_HUNK_RECYCLED;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
436 ctx->hunks++;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
437
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
438 } else {
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
439 break;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
440 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
441
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
442 ctx->zstream.next_out = (u_char *) ctx->out_hunk->pos;
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
443 ctx->zstream.avail_out = conf->bufs.size;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
444 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
445
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
446 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
447 "deflate in: ni:%X no:%X ai:%d ao:%d fl:%d",
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
448 ctx->zstream.next_in, ctx->zstream.next_out,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
449 ctx->zstream.avail_in, ctx->zstream.avail_out,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
450 ctx->flush);
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
451
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
452 rc = deflate(&ctx->zstream, ctx->flush);
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
453 if (rc != Z_OK && rc != Z_STREAM_END) {
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
454 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
455 "deflate() failed: %d, %d", ctx->flush, rc);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
456 return ngx_http_gzip_error(ctx);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
457 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
458
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
459 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
460 "deflate out: ni:%X no:%X ai:%d ao:%d rc:%d",
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
461 ctx->zstream.next_in, ctx->zstream.next_out,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
462 ctx->zstream.avail_in, ctx->zstream.avail_out,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
463 rc);
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
464
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
465 ctx->in_hunk->pos = ctx->zstream.next_in;
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
466 ctx->out_hunk->last = ctx->zstream.next_out;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
467
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
468 if (ctx->zstream.avail_out == 0) {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
469 ngx_alloc_link_and_set_hunk(cl, ctx->out_hunk, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
470 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
471 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
472 ctx->last_out = &cl->next;
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
473 ctx->redo = 1;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
474
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
475 } else {
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
476 ctx->redo = 0;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
477
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
478 if (ctx->flush == Z_SYNC_FLUSH) {
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
479 ctx->out_hunk->type |= NGX_HUNK_FLUSH;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
480 ctx->flush = Z_NO_FLUSH;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
481
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
482 ngx_alloc_link_and_set_hunk(cl, ctx->out_hunk, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
483 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
484 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
485 ctx->last_out = &cl->next;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
486
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
487 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
488
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
489 } else if (ctx->flush == Z_FINISH) {
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
490
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
491 /* rc == Z_STREAM_END */
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
492
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
493 ctx->zin = ctx->zstream.total_in;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
494 ctx->zout = 10 + ctx->zstream.total_out + 8;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
495
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
496 rc = deflateEnd(&ctx->zstream);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
497 if (rc != Z_OK) {
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
498 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
499 "deflateEnd() failed: %d", rc);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
500 return ngx_http_gzip_error(ctx);
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
501 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
502
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
503 ngx_pfree(r->pool, ctx->preallocated);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
504
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
505 ctx->flush = Z_NO_FLUSH;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
506
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
507 ngx_alloc_link_and_set_hunk(cl, ctx->out_hunk, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
508 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
509 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
510 ctx->last_out = &cl->next;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
511
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
512 if (ctx->zstream.avail_out >= 8) {
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
513 trailer = (struct gztrailer *) ctx->out_hunk->last;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
514 ctx->out_hunk->type |= NGX_HUNK_LAST;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
515 ctx->out_hunk->last += 8;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
516
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
517 } else {
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
518 ngx_test_null(h,
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 165
diff changeset
519 ngx_create_temp_hunk(r->pool, 8),
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
520 ngx_http_gzip_error(ctx));
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
521
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
522 h->type |= NGX_HUNK_LAST;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
523
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
524 ngx_alloc_link_and_set_hunk(cl, h, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
525 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
526 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
527 ctx->last_out = &cl->next;
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
528 trailer = (struct gztrailer *) h->pos;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
529 h->last += 8;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
530 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
531
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
532 #if (HAVE_LITTLE_ENDIAN)
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
533 trailer->crc32 = ctx->crc32;
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
534 trailer->zlen = ctx->zin;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
535 #else
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
536 /* STUB */
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
537 #endif
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
538
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
539 ctx->zstream.avail_in = 0;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
540 ctx->zstream.avail_out = 0;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
541
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
542 ctx->done = 1;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
543
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
544 #if 0
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
545 ngx_http_delete_ctx(r, ngx_http_gzip_filter_module);
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
546 #endif
136
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
547
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
548 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
549
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
550 } else if (conf->no_buffer && ctx->in == NULL) {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
551 ngx_alloc_link_and_set_hunk(cl, ctx->out_hunk, r->pool,
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
552 ngx_http_gzip_error(ctx));
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
553 *ctx->last_out = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
554 ctx->last_out = &cl->next;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
555
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
556 break;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
557 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
558 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
559 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
560
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
561 if (ctx->out == NULL && last != NGX_NONE) {
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
562 return last;
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
563 }
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
564
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
565 last = 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
566
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
567 if (last == NGX_ERROR) {
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
568 return ngx_http_gzip_error(ctx);
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
569 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
570
154
eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
571 ngx_chain_update_chains(&ctx->free, &ctx->busy, &ctx->out,
eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
572 (ngx_hunk_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
573 ctx->last_out = &ctx->out;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
574 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
575 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
576
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
577
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
578 static void *ngx_http_gzip_filter_alloc(void *opaque, u_int items, u_int size)
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
579 {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
580 ngx_http_gzip_ctx_t *ctx = opaque;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
581
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
582 void *p;
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
583 ngx_uint_t alloc;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
584
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
585 alloc = items * size;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
586 if (alloc % 512 != 0) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
587
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
588 /* we allocate 8K for zlib deflate_state (~6K) */
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
589 /* TODO: PAGE_SIZE */
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
590
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
591 alloc = (alloc + 4095) & ~4095;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
592 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
593
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
594 if (alloc <= ctx->allocated) {
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
595 p = ctx->free_mem;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
596 ctx->free_mem += alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
597 ctx->allocated -= alloc;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
598
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
599 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0,
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 292
diff changeset
600 "gzip alloc: n:%d s:%d a:%d p:" PTR_FMT,
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
601 items, size, alloc, p);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
602
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
603 return p;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
604 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
605
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
606 ngx_log_error(NGX_LOG_ALERT, ctx->request->connection->log, 0,
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
607 "gzip filter failed to use preallocated memory: %d of %d",
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
608 items * size, ctx->allocated);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
609
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
610 p = ngx_palloc(ctx->request->pool, items * size);
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
611
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
612 return p;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
613 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
614
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
615
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
616 static void ngx_http_gzip_filter_free(void *opaque, void *address)
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
617 {
282
30310107dbc9 nginx-0.0.2-2004-03-09-22:47:07 import
Igor Sysoev <igor@sysoev.ru>
parents: 265
diff changeset
618 #if 0
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
619 ngx_http_gzip_ctx_t *ctx = opaque;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
620
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
621 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 243
diff changeset
622 "gzip free: %X", address);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
623 #endif
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
624 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
625
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
626
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
627 static u_char *ngx_http_gzip_log_ratio(ngx_http_request_t *r, u_char *buf,
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
628 uintptr_t data)
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
629 {
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
630 ngx_uint_t zint, zfrac;
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
631 ngx_http_gzip_ctx_t *ctx;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
632
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
633 ctx = ngx_http_get_module_ctx(r, ngx_http_gzip_filter_module);
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
634
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
635 if (ctx == NULL || ctx->zout == 0) {
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
636 *buf = '-';
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
637 return buf + 1;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
638 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
639
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
640 #if 0
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
641 return buf + ngx_snprintf((char *) buf, NGX_INT32_LEN + 4, "%.2f",
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
642 (float) ctx->zin / ctx->zout);
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
643 #endif
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
644
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
645 /* we prefer do not use FPU */
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
646
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
647 zint = (ngx_uint_t) (ctx->zin / ctx->zout);
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
648 zfrac = (ngx_uint_t) ((ctx->zin * 100 / ctx->zout) % 100);
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
649
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
650 if ((ctx->zin * 1000 / ctx->zout) %10 > 4) {
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
651 if (++zfrac > 99) {
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
652 zint++;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
653 zfrac = 0;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
654 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
655 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
656
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
657 return buf + ngx_snprintf((char *) buf, NGX_INT32_LEN + 4,
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
658 "%d.%02d", zint, zfrac);
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
659 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
660
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
661
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
662 ngx_inline static int ngx_http_gzip_error(ngx_http_gzip_ctx_t *ctx)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
663 {
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
664 deflateEnd(&ctx->zstream);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
665
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
666 ngx_pfree(ctx->request->pool, ctx->preallocated);
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
667
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
668 ctx->zstream.avail_in = 0;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
669 ctx->zstream.avail_out = 0;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
670
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
671 return NGX_ERROR;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
672 }
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
673
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
674
177
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
675 static int ngx_http_gzip_pre_conf(ngx_conf_t *cf)
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
676 {
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
677 ngx_http_log_op_name_t *op;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
678
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
679 for (op = ngx_http_gzip_log_fmt_ops; op->name.len; op++) { /* void */ }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
680 op->op = NULL;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
681
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
682 op = ngx_http_log_fmt_ops;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
683
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
684 for (op = ngx_http_log_fmt_ops; op->op; op++) {
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
685 if (op->name.len == 0) {
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
686 op = (ngx_http_log_op_name_t *) op->op;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
687 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
688 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
689
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
690 op->op = (ngx_http_log_op_pt) ngx_http_gzip_log_fmt_ops;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
691
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
692 return NGX_OK;
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
693 }
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
694
4db54fdbcbe7 nginx-0.0.1-2003-11-10-20:17:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 166
diff changeset
695
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
696 static int ngx_http_gzip_filter_init(ngx_cycle_t *cycle)
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
697 {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
698 ngx_http_next_header_filter = ngx_http_top_header_filter;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
699 ngx_http_top_header_filter = ngx_http_gzip_header_filter;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
700
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
701 ngx_http_next_body_filter = ngx_http_top_body_filter;
133
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
702 ngx_http_top_body_filter = ngx_http_gzip_body_filter;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
703
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
704 return NGX_OK;
b27548f540ad nginx-0.0.1-2003-09-24-23:51:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
705 }
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
706
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
707
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
708 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
709 {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
710 ngx_http_gzip_conf_t *conf;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
711
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
712 ngx_test_null(conf,
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
713 ngx_pcalloc(cf->pool, sizeof(ngx_http_gzip_conf_t)),
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
714 NGX_CONF_ERROR);
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
715
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
716 conf->enable = NGX_CONF_UNSET;
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
717 conf->no_buffer = NGX_CONF_UNSET;
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
718
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
719 /* conf->bufs.num = 0; */
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
720
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
721 conf->http_version = NGX_CONF_UNSET_UINT;
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
722 conf->proxied = NGX_CONF_UNSET_UINT;
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
723
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
724 conf->level = NGX_CONF_UNSET;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
725 conf->wbits = NGX_CONF_UNSET;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
726 conf->memlevel = NGX_CONF_UNSET;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
727
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
728 return conf;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
729 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
730
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
731
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
732 static char *ngx_http_gzip_merge_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
733 void *parent, void *child)
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
734 {
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
735 ngx_http_gzip_conf_t *prev = parent;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
736 ngx_http_gzip_conf_t *conf = child;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
737
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
738 ngx_conf_merge_value(conf->enable, prev->enable, 0);
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
739
141
656d468f4ead nginx-0.0.1-2003-10-08-19:32:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
diff changeset
740 ngx_conf_merge_bufs_value(conf->bufs, prev->bufs, 4,
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
741 /* STUB: PAGE_SIZE */ 4096);
314
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
742
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
743 ngx_conf_merge_unsigned_value(conf->http_version, prev->http_version,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
744 NGX_HTTP_VERSION_11);
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
745 ngx_conf_merge_unsigned_value(conf->proxied, prev->proxied,
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
746 NGX_HTTP_GZIP_PROXIED_OFF);
d71c87d11b16 nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
747
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
748 ngx_conf_merge_value(conf->level, prev->level, 1);
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
749 ngx_conf_merge_value(conf->wbits, prev->wbits, MAX_WBITS);
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 289
diff changeset
750 ngx_conf_merge_value(conf->memlevel, prev->memlevel, MAX_MEM_LEVEL - 1);
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
751 ngx_conf_merge_value(conf->no_buffer, prev->no_buffer, 0);
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
752
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
753 return NGX_CONF_OK;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 133
diff changeset
754 }
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
755
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
756
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
757 static char *ngx_http_gzip_set_window(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
758 {
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
759 int *np = data;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
760
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
761 int wbits, wsize;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
762
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
763
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
764 ngx_conf_log_error(NGX_LOG_INFO, cf, 0, "WBITS: %d", *np);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
765
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
766 wbits = 15;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
767 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
768
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
769 if (wsize == *np) {
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
770 *np = wbits;
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
771 ngx_conf_log_error(NGX_LOG_INFO, cf, 0, "WBITS: %d", *np);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
772 return NULL;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
773 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
774
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
775 wbits--;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
776 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
777
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
778 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
779 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
780
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
781
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
782 static char *ngx_http_gzip_set_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
783 {
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
784 int *np = data;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
785
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
786 int memlevel, hsize;
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
787
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
788
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
789 ngx_conf_log_error(NGX_LOG_INFO, cf, 0, "MEMLEVEL: %d", *np);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
790
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
791 memlevel = 9;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
792 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
793
158
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
794 if (hsize == *np) {
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
795 *np = memlevel;
d377ee423603 nginx-0.0.1-2003-10-24-10:53:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 157
diff changeset
796 ngx_conf_log_error(NGX_LOG_INFO, cf, 0, "MEMLEVEL: %d", *np);
156
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
797 return NULL;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
798 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
799
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
800 memlevel--;
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
801 }
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
802
afc333135a6b nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
803 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
804 }