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annotate src/core/ngx_output_chain.c @ 3776:7450029ff51e

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file AIO read may be posted inside loop
author Igor Sysoev <igor@sysoev.ru>
date Tue, 12 Oct 2010 12:06:52 +0000
parents 76d252724db5
children 5db098f97e0e 4919fb357a5d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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11
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12 #if 0
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13 #define NGX_SENDFILE_LIMIT 4096
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14 #endif
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15
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16 /*
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17 * When DIRECTIO is enabled FreeBSD, Solaris, and MacOSX read directly
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18 * to an application memory from a device if parameters are aligned
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19 * to device sector boundary (512 bytes). They fallback to usual read
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20 * operation if the parameters are not aligned.
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21 * Linux allows DIRECTIO only if the parameters are aligned to a filesystem
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22 * sector boundary, otherwise it returns EINVAL. The sector size is
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23 * usually 512 bytes, however, on XFS it may be 4096 bytes.
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24 */
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26 #define NGX_NONE 1
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28
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29 static ngx_inline ngx_int_t
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30 ngx_output_chain_as_is(ngx_output_chain_ctx_t *ctx, ngx_buf_t *buf);
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31 static ngx_int_t ngx_output_chain_add_copy(ngx_pool_t *pool,
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32 ngx_chain_t **chain, ngx_chain_t *in);
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33 static ngx_int_t ngx_output_chain_align_file_buf(ngx_output_chain_ctx_t *ctx,
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34 off_t bsize);
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35 static ngx_int_t ngx_output_chain_get_buf(ngx_output_chain_ctx_t *ctx,
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36 off_t bsize);
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37 static ngx_int_t ngx_output_chain_copy_buf(ngx_output_chain_ctx_t *ctx);
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38
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39
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40 ngx_int_t
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41 ngx_output_chain(ngx_output_chain_ctx_t *ctx, ngx_chain_t *in)
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42 {
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43 off_t bsize;
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44 ngx_int_t rc, last;
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45 ngx_chain_t *cl, *out, **last_out;
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46
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47 if (ctx->in == NULL && ctx->busy == NULL) {
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48
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49 /*
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50 * the short path for the case when the ctx->in and ctx->busy chains
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51 * are empty, the incoming chain is empty too or has the single buf
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52 * that does not require the copy
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53 */
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54
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55 if (in == NULL) {
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56 return ctx->output_filter(ctx->filter_ctx, in);
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57 }
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58
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59 if (in->next == NULL
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60 #if (NGX_SENDFILE_LIMIT)
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61 && !(in->buf->in_file && in->buf->file_last > NGX_SENDFILE_LIMIT)
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62 #endif
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63 && ngx_output_chain_as_is(ctx, in->buf))
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64 {
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65 return ctx->output_filter(ctx->filter_ctx, in);
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66 }
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67 }
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68
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69 /* add the incoming buf to the chain ctx->in */
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70
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71 if (in) {
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72 if (ngx_output_chain_add_copy(ctx->pool, &ctx->in, in) == NGX_ERROR) {
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73 return NGX_ERROR;
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74 }
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75 }
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76
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77 out = NULL;
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78 last_out = &out;
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79 last = NGX_NONE;
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80
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81 for ( ;; ) {
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82
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83 #if (NGX_HAVE_FILE_AIO)
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84 if (ctx->aio) {
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85 return NGX_AGAIN;
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86 }
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87 #endif
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88
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89 while (ctx->in) {
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90
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91 /*
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92 * cycle while there are the ctx->in bufs
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93 * and there are the free output bufs to copy in
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94 */
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95
403
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96 bsize = ngx_buf_size(ctx->in->buf);
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97
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98 if (bsize == 0 && !ngx_buf_special(ctx->in->buf)) {
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99
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100 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0,
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101 "zero size buf in output "
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102 "t:%d r:%d f:%d %p %p-%p %p %O-%O",
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103 ctx->in->buf->temporary,
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104 ctx->in->buf->recycled,
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105 ctx->in->buf->in_file,
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106 ctx->in->buf->start,
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107 ctx->in->buf->pos,
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108 ctx->in->buf->last,
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109 ctx->in->buf->file,
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110 ctx->in->buf->file_pos,
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111 ctx->in->buf->file_last);
403
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112
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113 ngx_debug_point();
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114
403
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115 ctx->in = ctx->in->next;
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116
403
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117 continue;
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118 }
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119
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120 if (ngx_output_chain_as_is(ctx, ctx->in->buf)) {
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121
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122 /* move the chain link to the output chain */
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123
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124 cl = ctx->in;
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diff changeset
125 ctx->in = cl->next;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
126
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
127 *last_out = cl;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
128 last_out = &cl->next;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
129 cl->next = NULL;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
130
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
131 continue;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
132 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
133
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
134 if (ctx->buf == NULL) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
135
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
136 rc = ngx_output_chain_align_file_buf(ctx, bsize);
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
137
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
138 if (rc == NGX_ERROR) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
139 return NGX_ERROR;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
140 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
141
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
142 if (rc != NGX_OK) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
143
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
144 if (ctx->free) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
145
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
146 /* get the free buf */
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
147
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
148 cl = ctx->free;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
149 ctx->buf = cl->buf;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
150 ctx->free = cl->next;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
151
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
152 ngx_free_chain(ctx->pool, cl);
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
154 } else if (out || ctx->allocated == ctx->bufs.num) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
155
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
156 break;
334
af451db3fe99 nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents: 320
diff changeset
157
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
158 } else if (ngx_output_chain_get_buf(ctx, bsize) != NGX_OK) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
159 return NGX_ERROR;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
160 }
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
161 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
162 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
163
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
164 rc = ngx_output_chain_copy_buf(ctx);
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
165
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
166 if (rc == NGX_ERROR) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
167 return rc;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
169
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
170 if (rc == NGX_AGAIN) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
171 if (out) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
172 break;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
173 }
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 408
diff changeset
174
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175 return rc;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
176 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
177
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
178 /* delete the completed buf from the ctx->in chain */
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
179
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
180 if (ngx_buf_size(ctx->in->buf) == 0) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
181 ctx->in = ctx->in->next;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
182 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
183
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
184 cl = ngx_alloc_chain_link(ctx->pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
185 if (cl == NULL) {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
186 return NGX_ERROR;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
187 }
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
188
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
189 cl->buf = ctx->buf;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
190 cl->next = NULL;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191 *last_out = cl;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192 last_out = &cl->next;
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
193 ctx->buf = NULL;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
194 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
195
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
196 if (out == NULL && last != NGX_NONE) {
509
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
197
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
198 if (ctx->in) {
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
199 return NGX_AGAIN;
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
200 }
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
201
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
202 return last;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
205 last = ctx->output_filter(ctx->filter_ctx, out);
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
206
569
174f1e853e1e nginx-0.3.6-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 517
diff changeset
207 if (last == NGX_ERROR || last == NGX_DONE) {
174f1e853e1e nginx-0.3.6-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 517
diff changeset
208 return last;
174f1e853e1e nginx-0.3.6-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 517
diff changeset
209 }
174f1e853e1e nginx-0.3.6-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 517
diff changeset
210
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
211 ngx_chain_update_chains(&ctx->free, &ctx->busy, &out, ctx->tag);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
212 last_out = &out;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
214 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216
467
bbd6b0b4a2b1 nginx-0.1.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
217 static ngx_inline ngx_int_t
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
218 ngx_output_chain_as_is(ngx_output_chain_ctx_t *ctx, ngx_buf_t *buf)
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219 {
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
220 ngx_uint_t sendfile;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
221
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
222 if (ngx_buf_special(buf)) {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
223 return 1;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
224 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
225
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
226 if (buf->in_file && buf->file->directio) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
227 return 0;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
228 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
229
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
230 sendfile = ctx->sendfile;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
231
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
232 #if (NGX_SENDFILE_LIMIT)
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
233
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
234 if (buf->in_file && buf->file_pos >= NGX_SENDFILE_LIMIT) {
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
235 sendfile = 0;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
236 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
237
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
238 #endif
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
239
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
240 if (!sendfile) {
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
241
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
242 if (!ngx_buf_in_memory(buf)) {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
243 return 0;
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
244 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
245
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
246 buf->in_file = 0;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
247 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
249 if (ctx->need_in_memory && !ngx_buf_in_memory(buf)) {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
250 return 0;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
251 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
252
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
253 if (ctx->need_in_temp && (buf->memory || buf->mmap)) {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
254 return 0;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
255 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
256
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
257 return 1;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
258 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
259
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
260
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
261 static ngx_int_t
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
262 ngx_output_chain_add_copy(ngx_pool_t *pool, ngx_chain_t **chain,
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
263 ngx_chain_t *in)
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
264 {
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
265 ngx_chain_t *cl, **ll;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
266 #if (NGX_SENDFILE_LIMIT)
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
267 ngx_buf_t *b, *buf;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
268 #endif
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
269
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
270 ll = chain;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
271
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
272 for (cl = *chain; cl; cl = cl->next) {
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
273 ll = &cl->next;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
274 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
275
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
276 while (in) {
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
277
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
278 cl = ngx_alloc_chain_link(pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
279 if (cl == NULL) {
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
280 return NGX_ERROR;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
281 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
282
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
283 #if (NGX_SENDFILE_LIMIT)
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
284
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
285 buf = in->buf;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
286
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
287 if (buf->in_file
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
288 && buf->file_pos < NGX_SENDFILE_LIMIT
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
289 && buf->file_last > NGX_SENDFILE_LIMIT)
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
290 {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
291 /* split a file buf on two bufs by the sendfile limit */
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
292
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
293 b = ngx_calloc_buf(pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
294 if (b == NULL) {
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
295 return NGX_ERROR;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
296 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
297
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
298 ngx_memcpy(b, buf, sizeof(ngx_buf_t));
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
299
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
300 if (ngx_buf_in_memory(buf)) {
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
301 buf->pos += (ssize_t) (NGX_SENDFILE_LIMIT - buf->file_pos);
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
302 b->last = buf->pos;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
303 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
304
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
305 buf->file_pos = NGX_SENDFILE_LIMIT;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
306 b->file_last = NGX_SENDFILE_LIMIT;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
307
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
308 cl->buf = b;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
309
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
310 } else {
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
311 cl->buf = buf;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
312 in = in->next;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
313 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
314
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
315 #else
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
316 cl->buf = in->buf;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
317 in = in->next;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
318
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
319 #endif
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
320
2910
dc01b26f8de8 leave chain in consistent state on errors
Igor Sysoev <igor@sysoev.ru>
parents: 2899
diff changeset
321 cl->next = NULL;
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
322 *ll = cl;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
323 ll = &cl->next;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
324 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
325
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
326 return NGX_OK;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
327 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
328
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
329
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
330 static ngx_int_t
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
331 ngx_output_chain_align_file_buf(ngx_output_chain_ctx_t *ctx, off_t bsize)
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
332 {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
333 size_t size;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
334 ngx_buf_t *in;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
335
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
336 in = ctx->in->buf;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
337
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
338 if (in->file == NULL || !in->file->directio) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
339 return NGX_DECLINED;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
340 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
341
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
342 ctx->directio = 1;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
343
3053
0d253659da12 directio_alignment
Igor Sysoev <igor@sysoev.ru>
parents: 3052
diff changeset
344 size = (size_t) (in->file_pos - (in->file_pos & ~(ctx->alignment - 1)));
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
345
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
346 if (size == 0) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
347
2240
a83218b65245 fix building on 64-bit platforms, introduced in r2232
Igor Sysoev <igor@sysoev.ru>
parents: 2231
diff changeset
348 if (bsize >= (off_t) ctx->bufs.size) {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
349 return NGX_DECLINED;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
350 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
351
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
352 size = (size_t) bsize;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
353
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
354 } else {
3057
5ea5a90000d5 fix build by msvc, introduced in r3054
Igor Sysoev <igor@sysoev.ru>
parents: 3053
diff changeset
355 size = (size_t) ctx->alignment - size;
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
356
2240
a83218b65245 fix building on 64-bit platforms, introduced in r2232
Igor Sysoev <igor@sysoev.ru>
parents: 2231
diff changeset
357 if ((off_t) size > bsize) {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
358 size = (size_t) bsize;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
359 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
360 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
361
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
362 ctx->buf = ngx_create_temp_buf(ctx->pool, size);
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
363 if (ctx->buf == NULL) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
364 return NGX_ERROR;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
365 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
366
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
367 /*
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
368 * we do not set ctx->buf->tag, because we do not want
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
369 * to reuse the buf via ctx->free list
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
370 */
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
371
2248
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
372 #if (NGX_HAVE_ALIGNED_DIRECTIO)
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
373 ctx->unaligned = 1;
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
374 #endif
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
375
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
376 return NGX_OK;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
377 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
378
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
379
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
380 static ngx_int_t
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
381 ngx_output_chain_get_buf(ngx_output_chain_ctx_t *ctx, off_t bsize)
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
382 {
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
383 size_t size;
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
384 ngx_buf_t *b, *in;
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
385 ngx_uint_t recycled;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
386
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
387 in = ctx->in->buf;
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
388 size = ctx->bufs.size;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
389 recycled = 1;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
390
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
391 if (in->last_in_chain) {
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
392
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
393 if (bsize < (off_t) size) {
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
394
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
395 /*
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
396 * allocate a small temp buf for a small last buf
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
397 * or its small last part
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
398 */
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
399
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
400 size = (size_t) bsize;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
401 recycled = 0;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
402
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
403 } else if (!ctx->directio
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
404 && ctx->bufs.num == 1
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
405 && (bsize < (off_t) (size + size / 4)))
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
406 {
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
407 /*
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
408 * allocate a temp buf that equals to a last buf,
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
409 * if there is no directio, the last buf size is lesser
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
410 * than 1.25 of bufs.size and the temp buf is single
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
411 */
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
412
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
413 size = (size_t) bsize;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
414 recycled = 0;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
415 }
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
416 }
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
417
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
418 b = ngx_calloc_buf(ctx->pool);
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
419 if (b == NULL) {
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
420 return NGX_ERROR;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
421 }
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
422
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
423 if (ctx->directio) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
424
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
425 /*
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
426 * allocate block aligned to a disk sector size to enable
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
427 * userland buffer direct usage conjunctly with directio
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
428 */
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
429
3057
5ea5a90000d5 fix build by msvc, introduced in r3054
Igor Sysoev <igor@sysoev.ru>
parents: 3053
diff changeset
430 b->start = ngx_pmemalign(ctx->pool, size, (size_t) ctx->alignment);
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
431 if (b->start == NULL) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
432 return NGX_ERROR;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
433 }
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
434
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
435 } else {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
436 b->start = ngx_palloc(ctx->pool, size);
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
437 if (b->start == NULL) {
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
438 return NGX_ERROR;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
439 }
2230
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
440 }
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
441
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
442 b->pos = b->start;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
443 b->last = b->start;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
444 b->end = b->last + size;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
445 b->temporary = 1;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
446 b->tag = ctx->tag;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
447 b->recycled = recycled;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
448
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
449 ctx->buf = b;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
450 ctx->allocated++;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
451
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
452 return NGX_OK;
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
453 }
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
454
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
455
25cf039c40bd split ngx_output_chain()
Igor Sysoev <igor@sysoev.ru>
parents: 2180
diff changeset
456 static ngx_int_t
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
457 ngx_output_chain_copy_buf(ngx_output_chain_ctx_t *ctx)
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
458 {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
459 off_t size;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
460 ssize_t n;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
461 ngx_buf_t *src, *dst;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
462 ngx_uint_t sendfile;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
463
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
464 src = ctx->in->buf;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
465 dst = ctx->buf;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
466
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
467 size = ngx_buf_size(src);
3515
76d252724db5 use ngx_min() and ngx_max()
Igor Sysoev <igor@sysoev.ru>
parents: 3164
diff changeset
468 size = ngx_min(size, dst->end - dst->pos);
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
469
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
470 sendfile = ctx->sendfile & !ctx->directio;
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
471
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
472 #if (NGX_SENDFILE_LIMIT)
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
473
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
474 if (src->in_file && src->file_pos >= NGX_SENDFILE_LIMIT) {
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
475 sendfile = 0;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
476 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
477
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
478 #endif
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
479
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
480 if (ngx_buf_in_memory(src)) {
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
481 ngx_memcpy(dst->pos, src->pos, (size_t) size);
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
482 src->pos += (size_t) size;
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
483 dst->last += (size_t) size;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
484
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
485 if (src->in_file) {
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
486
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
487 if (sendfile) {
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
488 dst->in_file = 1;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
489 dst->file = src->file;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
490 dst->file_pos = src->file_pos;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
491 dst->file_last = src->file_pos + size;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
492
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
493 } else {
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
494 dst->in_file = 0;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
495 }
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
496
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
497 src->file_pos += size;
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
498
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
499 } else {
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
500 dst->in_file = 0;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
501 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
502
1227
3e40f3e4376c inherit flush flag, this fixes https proxying
Igor Sysoev <igor@sysoev.ru>
parents: 1226
diff changeset
503 if (src->pos == src->last) {
3e40f3e4376c inherit flush flag, this fixes https proxying
Igor Sysoev <igor@sysoev.ru>
parents: 1226
diff changeset
504 dst->flush = src->flush;
3e40f3e4376c inherit flush flag, this fixes https proxying
Igor Sysoev <igor@sysoev.ru>
parents: 1226
diff changeset
505 dst->last_buf = src->last_buf;
2899
61d5b945730a fix XSLT filter in SSI subrequests
Igor Sysoev <igor@sysoev.ru>
parents: 2316
diff changeset
506 dst->last_in_chain = src->last_in_chain;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
507 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
508
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
509 } else {
2248
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
510
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
511 #if (NGX_HAVE_ALIGNED_DIRECTIO)
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
512
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
513 if (ctx->unaligned) {
3164
b1b1775698d5 uniform ngx_directio_on/off() interface with other file functions
Igor Sysoev <igor@sysoev.ru>
parents: 3147
diff changeset
514 if (ngx_directio_off(src->file->fd) == NGX_FILE_ERROR) {
2248
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
515 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, ngx_errno,
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
516 ngx_directio_off_n " \"%s\" failed",
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
517 src->file->name.data);
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
518 }
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
519 }
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
520
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
521 #endif
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
522
3052
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
523 #if (NGX_HAVE_FILE_AIO)
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
524
3119
4c90c9129a82 fix case when the output filter should add incoming buffers
Igor Sysoev <igor@sysoev.ru>
parents: 3057
diff changeset
525 if (ctx->aio_handler) {
3052
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
526 n = ngx_file_aio_read(src->file, dst->pos, (size_t) size,
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
527 src->file_pos, ctx->pool);
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
528 if (n == NGX_AGAIN) {
3119
4c90c9129a82 fix case when the output filter should add incoming buffers
Igor Sysoev <igor@sysoev.ru>
parents: 3057
diff changeset
529 ctx->aio_handler(ctx, src->file);
3052
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
530 return NGX_AGAIN;
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
531 }
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
532
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
533 } else {
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
534 n = ngx_read_file(src->file, dst->pos, (size_t) size,
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
535 src->file_pos);
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
536 }
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
537 #else
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
538
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
539 n = ngx_read_file(src->file, dst->pos, (size_t) size, src->file_pos);
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
540
3052
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
541 #endif
6060225e9261 FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents: 2910
diff changeset
542
2248
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
543 #if (NGX_HAVE_ALIGNED_DIRECTIO)
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
544
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
545 if (ctx->unaligned) {
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
546 ngx_err_t err;
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
547
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
548 err = ngx_errno;
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
549
3164
b1b1775698d5 uniform ngx_directio_on/off() interface with other file functions
Igor Sysoev <igor@sysoev.ru>
parents: 3147
diff changeset
550 if (ngx_directio_on(src->file->fd) == NGX_FILE_ERROR) {
2248
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
551 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, ngx_errno,
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
552 ngx_directio_on_n " \"%s\" failed",
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
553 src->file->name.data);
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
554 }
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
555
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
556 ngx_set_errno(err);
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
557
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
558 ctx->unaligned = 0;
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
559 }
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
560
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
561 #endif
1adec90a0e46 disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents: 2245
diff changeset
562
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
563 if (n == NGX_ERROR) {
517
dadfa78d2270 nginx-0.1.33-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
564 return (ngx_int_t) n;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
565 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
566
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
567 if (n != size) {
2231
8564129d49b6 *) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents: 2230
diff changeset
568 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0,
2245
8a98616abb73 add filename to the log message
Igor Sysoev <igor@sysoev.ru>
parents: 2240
diff changeset
569 ngx_read_file_n " read only %z of %O from \"%s\"",
8a98616abb73 add filename to the log message
Igor Sysoev <igor@sysoev.ru>
parents: 2240
diff changeset
570 n, size, src->file->name.data);
3147
cbb1add4a6fe fail if file size was changed
Igor Sysoev <igor@sysoev.ru>
parents: 3119
diff changeset
571 return NGX_ERROR;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
572 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
573
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
574 dst->last += n;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
575
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
576 if (sendfile) {
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
577 dst->in_file = 1;
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
578 dst->file = src->file;
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
579 dst->file_pos = src->file_pos;
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
580 dst->file_last = src->file_pos + n;
452
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
581
23fb87bddda1 nginx-0.1.1-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
582 } else {
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
583 dst->in_file = 0;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
584 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
585
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
586 src->file_pos += n;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
587
1238
bb03410441d9 fix bug introduced in r1228
Igor Sysoev <igor@sysoev.ru>
parents: 1227
diff changeset
588 if (src->file_pos == src->file_last) {
1227
3e40f3e4376c inherit flush flag, this fixes https proxying
Igor Sysoev <igor@sysoev.ru>
parents: 1226
diff changeset
589 dst->flush = src->flush;
3e40f3e4376c inherit flush flag, this fixes https proxying
Igor Sysoev <igor@sysoev.ru>
parents: 1226
diff changeset
590 dst->last_buf = src->last_buf;
2899
61d5b945730a fix XSLT filter in SSI subrequests
Igor Sysoev <igor@sysoev.ru>
parents: 2316
diff changeset
591 dst->last_in_chain = src->last_in_chain;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
592 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
593 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
594
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
595 return NGX_OK;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
596 }
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
597
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
598
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
599 ngx_int_t
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
600 ngx_chain_writer(void *data, ngx_chain_t *in)
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
601 {
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 164
diff changeset
602 ngx_chain_writer_ctx_t *ctx = data;
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
603
1962
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
604 off_t size;
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
605 ngx_chain_t *cl;
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
606 ngx_connection_t *c;
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
607
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
608 c = ctx->connection;
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
609
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
610 for (size = 0; in; in = in->next) {
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
611
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
612 #if 1
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
613 if (ngx_buf_size(in->buf) == 0 && !ngx_buf_special(in->buf)) {
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
614 ngx_debug_point();
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
615 }
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
616 #endif
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
617
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
618 size += ngx_buf_size(in->buf);
408
d6e2b445c1b8 nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents: 403
diff changeset
619
1962
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
620 ngx_log_debug2(NGX_LOG_DEBUG_CORE, c->log, 0,
1226
2b4fdc9640b7 add debug logging
Igor Sysoev <igor@sysoev.ru>
parents: 1215
diff changeset
621 "chain writer buf fl:%d s:%uO",
2b4fdc9640b7 add debug logging
Igor Sysoev <igor@sysoev.ru>
parents: 1215
diff changeset
622 in->buf->flush, ngx_buf_size(in->buf));
408
d6e2b445c1b8 nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents: 403
diff changeset
623
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
624 cl = ngx_alloc_chain_link(ctx->pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
625 if (cl == NULL) {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
626 return NGX_ERROR;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
627 }
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
628
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
629 cl->buf = in->buf;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
630 cl->next = NULL;
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
631 *ctx->last = cl;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
632 ctx->last = &cl->next;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
633 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
634
1962
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
635 ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
636 "chain writer in: %p", ctx->out);
291
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
637
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
638 for (cl = ctx->out; cl; cl = cl->next) {
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
639
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
640 #if 1
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
641 if (ngx_buf_size(cl->buf) == 0 && !ngx_buf_special(cl->buf)) {
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
642 ngx_debug_point();
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
643 }
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
644
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
645 #endif
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
646
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
647 size += ngx_buf_size(cl->buf);
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
648 }
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
649
1962
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
650 if (size == 0 && !c->buffered) {
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
651 return NGX_OK;
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
652 }
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
653
1962
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
654 ctx->out = c->send_chain(c, ctx->out, ctx->limit);
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
655
1962
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
656 ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
657 "chain writer out: %p", ctx->out);
291
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
658
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
659 if (ctx->out == NGX_CHAIN_ERROR) {
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
660 return NGX_ERROR;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
661 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
662
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
663 if (ctx->out == NULL) {
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
664 ctx->last = &ctx->out;
1211
9177da9e4add fix "proxy_pass https://"
Igor Sysoev <igor@sysoev.ru>
parents: 828
diff changeset
665
1962
3091e5d770a6 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 1238
diff changeset
666 if (!c->buffered) {
1215
fb3ff245c96b an request body might not be passed to backend,
Igor Sysoev <igor@sysoev.ru>
parents: 1211
diff changeset
667 return NGX_OK;
fb3ff245c96b an request body might not be passed to backend,
Igor Sysoev <igor@sysoev.ru>
parents: 1211
diff changeset
668 }
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
669 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
670
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
671 return NGX_AGAIN;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
672 }