Mercurial > hg > nginx

annotate src/http/ngx_http_cache.c @ 189:c966c09be66b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-11-18-19:49:00 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 18 Nov 2003 16:49:00 +0000
parents c1f3a3c7c5db
children 02a715e85df1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
1
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
2 #include <ngx_config.h>
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
3 #include <ngx_core.h>
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
4 #include <ngx_http.h>
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
5
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
6 #include <md5.h>
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
7
186
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
8 #if (HAVE_OPENSSL_MD5)
180
2d143372a1ee nginx-0.0.1-2003-11-12-01:16:11 import
Igor Sysoev <igor@sysoev.ru>
parents: 176
diff changeset
9 #define MD5Init MD5_Init
2d143372a1ee nginx-0.0.1-2003-11-12-01:16:11 import
Igor Sysoev <igor@sysoev.ru>
parents: 176
diff changeset
10 #define MD5Update MD5_Update
2d143372a1ee nginx-0.0.1-2003-11-12-01:16:11 import
Igor Sysoev <igor@sysoev.ru>
parents: 176
diff changeset
11 #define MD5Final MD5_Final
2d143372a1ee nginx-0.0.1-2003-11-12-01:16:11 import
Igor Sysoev <igor@sysoev.ru>
parents: 176
diff changeset
12 #endif
2d143372a1ee nginx-0.0.1-2003-11-12-01:16:11 import
Igor Sysoev <igor@sysoev.ru>
parents: 176
diff changeset
13
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
14
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
15 int ngx_http_cache_get_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx)
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
16 {
176
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
17 MD5_CTX md5;
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
18
174
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
19 ctx->header_size = sizeof(ngx_http_cache_header_t) + ctx->key.len + 1;
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
20
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
21 ctx->file.name.len = ctx->path->name.len + 1 + ctx->path->len + 32;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
22 if (!(ctx->file.name.data = ngx_palloc(r->pool, ctx->file.name.len + 1))) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
23 return NGX_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
24 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
25
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
26 ngx_memcpy(ctx->file.name.data, ctx->path->name.data, ctx->path->name.len);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
27
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
28 MD5Init(&md5);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
29 MD5Update(&md5, (u_char *) ctx->key.data, ctx->key.len);
174
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
30 MD5Final(ctx->md5, &md5);
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
31
175
e92c2c647c57 nginx-0.0.1-2003-11-05-20:03:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 174
diff changeset
32 ngx_md5_text(ctx->file.name.data + ctx->path->name.len + 1 + ctx->path->len,
174
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
33 ctx->md5);
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
34
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
35 ngx_log_debug(r->connection->log, "URL: %s, md5: %s" _ ctx->key.data _
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
36 ctx->file.name.data + ctx->path->name.len + 1 + ctx->path->len);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
37
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
38 ngx_create_hashed_filename(&ctx->file, ctx->path);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
39
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
40 ngx_log_debug(r->connection->log, "FILE: %s" _ ctx->file.name.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
41
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
42 /* TODO: look open files cache */
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
43
176
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
44 return ngx_http_cache_open_file(r, ctx, 0);
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
45 }
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
46
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
47
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
48 /* TODO: Win32 inode analogy */
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
49
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
50 int ngx_http_cache_open_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx,
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
51 ngx_file_uniq_t uniq)
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
52 {
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
53 ssize_t n;
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
54 ngx_err_t err;
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
55 ngx_http_cache_header_t *h;
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
56
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
57 ctx->file.fd = ngx_open_file(ctx->file.name.data,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
58 NGX_FILE_RDONLY, NGX_FILE_OPEN);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
59
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
60 if (ctx->file.fd == NGX_INVALID_FILE) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
61 err = ngx_errno;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
62
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
63 if (err == NGX_ENOENT || err == NGX_ENOTDIR) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
64 return NGX_DECLINED;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
65 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
66
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
67 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
68 ngx_open_file_n " \"%s\" failed", ctx->file.name.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
69 return NGX_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
70 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
71
176
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
72 if (uniq) {
186
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
73 if (ngx_fd_info(ctx->file.fd, &ctx->file.info) == NGX_FILE_ERROR) {
176
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
74 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
186
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
75 ngx_fd_info_n " \"%s\" failed", ctx->file.name.data);
176
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
76
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
77 return NGX_ERROR;
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
78 }
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
79
186
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
80 if (ngx_file_uniq(&ctx->file.info) == uniq) {
176
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
81 if (ngx_close_file(ctx->file.fd) == NGX_FILE_ERROR) {
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
82 ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
83 ngx_close_file_n " \"%s\" failed",
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
84 ctx->file.name.data);
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
85 }
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
86
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
87 return NGX_HTTP_CACHE_THE_SAME;
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
88 }
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
89 }
c0552e5ab567 nginx-0.0.1-2003-11-09-23:03:38 import; separate building
Igor Sysoev <igor@sysoev.ru>
parents: 175
diff changeset
90
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
91 n = ngx_read_file(&ctx->file, ctx->buf->pos,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
92 ctx->buf->end - ctx->buf->last, 0);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
93
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
94 if (n == NGX_ERROR || n == NGX_AGAIN) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
95 return n;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
96 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
97
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
98 if (n <= ctx->header_size) {
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
99 ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0,
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
100 "cache file \"%s\" is too small", ctx->file.name.data);
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
101 return NGX_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
102 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
103
174
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
104 h = (ngx_http_cache_header_t *) ctx->buf->pos;
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
105 ctx->expires = h->expires;
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
106 ctx->last_modified= h->last_modified;
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
107 ctx->date = h->date;
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
108 ctx->length = h->length;
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
109
189
c966c09be66b nginx-0.0.1-2003-11-18-19:49:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 186
diff changeset
110 if (h->key_len > (size_t) (ctx->buf->last - ctx->buf->pos)) {
c966c09be66b nginx-0.0.1-2003-11-18-19:49:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 186
diff changeset
111 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
c966c09be66b nginx-0.0.1-2003-11-18-19:49:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 186
diff changeset
112 "cache file \"%s\" is probably invalid",
c966c09be66b nginx-0.0.1-2003-11-18-19:49:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 186
diff changeset
113 ctx->file.name.data);
c966c09be66b nginx-0.0.1-2003-11-18-19:49:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 186
diff changeset
114 return NGX_DECLINED;
c966c09be66b nginx-0.0.1-2003-11-18-19:49:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 186
diff changeset
115 }
c966c09be66b nginx-0.0.1-2003-11-18-19:49:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 186
diff changeset
116
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
117 if (h->key_len != ctx->key.len
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
118 || ngx_strncmp(h->key, ctx->key.data, h->key_len) != 0)
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
119 {
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
120 h->key[h->key_len] = '\0';
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
121 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
122 "md5 collision: \"%s\" and \"%s\"",
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
123 h->key, ctx->key.data);
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
124 return NGX_DECLINED;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
125 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
126
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
127 ctx->buf->last += n;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
128
174
ea464a6c0581 nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 172
diff changeset
129 if (ctx->expires < ngx_time()) {
175
e92c2c647c57 nginx-0.0.1-2003-11-05-20:03:41 import
Igor Sysoev <igor@sysoev.ru>
parents: 174
diff changeset
130 ngx_log_debug(r->connection->log, "EXPIRED");
172
caa57ddf6d77 nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 171
diff changeset
131 return NGX_HTTP_CACHE_STALE;
171
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
132 }
aff0e5d32af8 nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
133
172
caa57ddf6d77 nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 171
diff changeset
134 /* TODO: NGX_HTTP_CACHE_AGED */
caa57ddf6d77 nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 171
diff changeset
135
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
136 return NGX_OK;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
137 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
138
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
139
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
140 int ngx_http_cache_update_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
141 ngx_str_t *temp_file)
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
142 {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
143 int retry;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
144 ngx_err_t err;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
145
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
146 retry = 0;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
147
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
148 for ( ;; ) {
186
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
149 if (ngx_rename_file(temp_file->data, ctx->file.name.data) == NGX_OK) {
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
150 return NGX_OK;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
151 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
152
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
153 err = ngx_errno;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
154
186
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
155 #if (WIN32)
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
156 if (err == NGX_EEXIST) {
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
157 if (ngx_win32_rename_file(temp_file, &ctx->file.name, r->pool)
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
158 == NGX_ERROR)
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
159 {
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
160 return NGX_ERROR;
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
161 }
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
162 }
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
163 #endif
c1f3a3c7c5db nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents: 185
diff changeset
164
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
165 if (retry || (err != NGX_ENOENT && err != NGX_ENOTDIR)) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
166 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
167 ngx_rename_file_n "(\"%s\", \"%s\") failed",
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
168 temp_file->data, ctx->file.name.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
169
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
170 return NGX_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
171 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
172
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
173 if (ngx_create_path(&ctx->file, ctx->path) == NGX_ERROR) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
174 return NGX_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
175 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
176
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
177 retry = 1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
178 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
179 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
180
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
181
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
182 #if 0
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
183
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
184 /*
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
185 * small file in malloc()ed memory, mmap()ed file, file descriptor only,
105
00bee6e7b485 nginx-0.0.1-2003-06-15-22:32:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
186 * file access time only (to estimate could pages still be in memory),
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
187 * translated URI (ngx_http_index_hanlder),
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
188 * compiled script (ngx_http_ssi_filter).
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
189 */
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
190
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192 #define NGX_HTTP_CACHE_ENTRY_DELETED 0x00000001
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
193 #define NGX_HTTP_CACHE_ENTRY_MMAPED 0x00000002
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
194
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
195 /* "/" -> "/index.html" in ngx_http_index_handler */
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
196 #define NGX_HTTP_CACHE_ENTRY_URI 0x00000004
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
197
105
00bee6e7b485 nginx-0.0.1-2003-06-15-22:32:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
198 /* 301 location "/dir" -> "dir/" in ngx_http_core_handler */
00bee6e7b485 nginx-0.0.1-2003-06-15-22:32:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
199
00bee6e7b485 nginx-0.0.1-2003-06-15-22:32:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
200 /* compiled script in ngx_http_ssi_filter */
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
201 #define NGX_HTTP_CACHE_ENTRY_SCRIPT 0x00000008
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
202
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203 #define NGX_HTTP_CACHE_FILTER_FLAGS 0xFFFF0000
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
205
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
206 typedef struct {
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
207 ngx_fd_t fd;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208 off_t size;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209 void *data;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210 time_t accessed;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
211 time_t last_modified;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
212 time_t updated; /* no needed with kqueue */
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213 int refs;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
214 int flags;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215 } ngx_http_cache_entry_t;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
217
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218 typedef struct {
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219 u_int32_t crc;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220 ngx_str_t uri;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
221 ngx_http_cache_t *cache;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
222 } ngx_http_cache_hash_entry_t;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
223
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
224
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
225 typedef struct {
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
226 ngx_http_cache_t *cache;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
227 u_int32_t crc;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
228 int n;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
229 } ngx_http_cache_handle_t;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
230
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
231
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
232 int ngx_http_cache_get(ngx_http_cache_hash_t *cache_hash,
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
233 ngx_str_t *uri, ngx_http_cache_handle_t *h)
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
234 {
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
235 int hi;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
236 ngx_http_cache_hash_entry_t *entry;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
237
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
238 h->crc = ngx_crc(uri->data, uri->len);
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
239
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
240 hi = h->crc % cache_hash->size;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
241 entry = cache_hash[hi].elts;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
242
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
243 for (i = 0; i < cache_hash[hi].nelts; i++) {
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
244 if (entry[i].crc == crc
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
245 && entry[i].uri.len == uri->len
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
246 && ngx_strncmp(entry[i].uri.data, uri->data, uri->len) == 0
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
247 {
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248 h->cache = entry[i].cache;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
249 h->cache->refs++;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
250 h->n = hi;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
251 return NGX_OK;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
252 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
253 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
254
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
255 return NGX_ERROR;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
256 }
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
257
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
258
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
259 /* 32-bit crc16 */
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
260
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
261 int ngx_crc(char *data, size_t len)
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
262 {
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
263 u_int32_t sum;
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
264
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
265 for (sum = 0; len; len--) {
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
266 /*
107
b5be4b0448d3 nginx-0.0.1-2003-07-01-19:00:03 import
Igor Sysoev <igor@sysoev.ru>
parents: 105
diff changeset
267 * gcc 2.95.2 x86 and icc 7.1.006 compile that operator
b5be4b0448d3 nginx-0.0.1-2003-07-01-19:00:03 import
Igor Sysoev <igor@sysoev.ru>
parents: 105
diff changeset
268 * into the single rol opcode.
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
269 * msvc 6.0sp2 compiles it into four opcodes.
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
270 */
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
271 sum = sum >> 1 | sum << 31;
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
272
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
273 sum += *data++;
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
274 }
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
275
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
276 return sum;
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
277 }
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
278
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 107
diff changeset
279 #endif