Mercurial > hg > nginx
annotate src/http/ngx_http_cache.c @ 191:71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 19 Nov 2003 16:26:41 +0000 |
parents | 02a715e85df1 |
children | 8dee38ea9117 |
rev | line source |
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 #include <ngx_http.h> |
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7 #include <md5.h> |
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9 #if (HAVE_OPENSSL_MD5) |
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10 #define MD5Init MD5_Init |
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11 #define MD5Update MD5_Update |
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12 #define MD5Final MD5_Final |
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13 #endif |
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15 |
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16 int ngx_http_cache_get_file(ngx_http_request_t *r, ngx_http_cache_ctx_t *ctx) |
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17 { |
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18 MD5_CTX md5; |
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20 ctx->header_size = sizeof(ngx_http_cache_header_t) + ctx->key.len + 1; |
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21 |
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22 ctx->file.name.len = ctx->path->name.len + 1 + ctx->path->len + 32; |
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23 if (!(ctx->file.name.data = ngx_palloc(r->pool, ctx->file.name.len + 1))) { |
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24 return NGX_ERROR; |
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25 } |
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27 ngx_memcpy(ctx->file.name.data, ctx->path->name.data, ctx->path->name.len); |
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28 |
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29 MD5Init(&md5); |
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30 MD5Update(&md5, (u_char *) ctx->key.data, ctx->key.len); |
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31 MD5Final(ctx->md5, &md5); |
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33 ngx_md5_text(ctx->file.name.data + ctx->path->name.len + 1 + ctx->path->len, |
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34 ctx->md5); |
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35 |
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36 ngx_log_debug(r->connection->log, "URL: %s, md5: %s" _ ctx->key.data _ |
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37 ctx->file.name.data + ctx->path->name.len + 1 + ctx->path->len); |
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38 |
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39 ngx_create_hashed_filename(&ctx->file, ctx->path); |
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40 |
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41 ngx_log_debug(r->connection->log, "FILE: %s" _ ctx->file.name.data); |
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42 |
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43 /* TODO: look open files cache */ |
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45 return ngx_http_cache_open_file(ctx, 0); |
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46 } |
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47 |
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48 |
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49 /* TODO: Win32 inode analogy */ |
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51 int ngx_http_cache_open_file(ngx_http_cache_ctx_t *ctx, ngx_file_uniq_t uniq) |
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52 { |
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53 ssize_t n; |
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54 ngx_err_t err; |
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55 ngx_http_cache_header_t *h; |
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56 |
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57 ctx->file.fd = ngx_open_file(ctx->file.name.data, |
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58 NGX_FILE_RDONLY, NGX_FILE_OPEN); |
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59 |
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60 if (ctx->file.fd == NGX_INVALID_FILE) { |
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61 err = ngx_errno; |
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62 |
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63 if (err == NGX_ENOENT || err == NGX_ENOTDIR) { |
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64 return NGX_DECLINED; |
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65 } |
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67 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno, |
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68 ngx_open_file_n " \"%s\" failed", ctx->file.name.data); |
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69 return NGX_ERROR; |
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70 } |
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72 if (uniq) { |
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73 if (ngx_fd_info(ctx->file.fd, &ctx->file.info) == NGX_FILE_ERROR) { |
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74 ngx_log_error(NGX_LOG_CRIT, ctx->log, ngx_errno, |
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75 ngx_fd_info_n " \"%s\" failed", ctx->file.name.data); |
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76 |
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77 return NGX_ERROR; |
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78 } |
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79 |
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80 if (ngx_file_uniq(&ctx->file.info) == uniq) { |
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81 if (ngx_close_file(ctx->file.fd) == NGX_FILE_ERROR) { |
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82 ngx_log_error(NGX_LOG_ALERT, ctx->log, ngx_errno, |
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83 ngx_close_file_n " \"%s\" failed", |
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84 ctx->file.name.data); |
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85 } |
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86 |
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87 return NGX_HTTP_CACHE_THE_SAME; |
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88 } |
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89 } |
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90 |
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91 n = ngx_read_file(&ctx->file, ctx->buf->pos, |
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92 ctx->buf->end - ctx->buf->last, 0); |
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93 |
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94 if (n == NGX_ERROR || n == NGX_AGAIN) { |
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95 return n; |
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96 } |
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97 |
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98 if (n <= ctx->header_size) { |
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99 ngx_log_error(NGX_LOG_CRIT, ctx->log, 0, |
171
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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 |
191
71ce40b3c37b
nginx-0.0.1-2003-11-19-19:26:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
190
diff
changeset
|
110 if (h->key_len > (size_t) (ctx->buf->end - ctx->buf->pos)) { |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
111 ngx_log_error(NGX_LOG_ALERT, ctx->log, 0, |
189
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 |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
117 if (ctx->key.len |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
118 && (h->key_len != ctx->key.len |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
119 || 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
|
120 { |
171
aff0e5d32af8
nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
170
diff
changeset
|
121 h->key[h->key_len] = '\0'; |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
122 ngx_log_error(NGX_LOG_ALERT, ctx->log, 0, |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
123 "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
|
124 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
|
125 return NGX_DECLINED; |
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 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
128 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
|
129 |
174
ea464a6c0581
nginx-0.0.1-2003-11-05-01:12:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
130 if (ctx->expires < ngx_time()) { |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
131 ngx_log_debug(ctx->log, "EXPIRED"); |
172
caa57ddf6d77
nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
171
diff
changeset
|
132 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
|
133 } |
aff0e5d32af8
nginx-0.0.1-2003-11-03-20:33:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
170
diff
changeset
|
134 |
172
caa57ddf6d77
nginx-0.0.1-2003-11-04-01:20:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
171
diff
changeset
|
135 /* 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
|
136 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
137 return NGX_OK; |
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 |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
141 int ngx_garbage_collector_http_cache_handler(ngx_gc_t *gc, ngx_str_t *name, |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
142 ngx_dir_t *dir) |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
143 { |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
144 int rc; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
145 char data[sizeof(ngx_http_cache_header_t)]; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
146 ngx_hunk_t buf; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
147 ngx_http_cache_ctx_t ctx; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
148 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
149 ctx.file.fd = NGX_INVALID_FILE; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
150 ctx.file.name = *name; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
151 ctx.file.log = gc->log; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
152 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
153 ctx.header_size = sizeof(ngx_http_cache_header_t); |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
154 ctx.buf = &buf; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
155 ctx.log = gc->log; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
156 ctx.key.len = 0; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
157 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
158 buf.type = NGX_HUNK_IN_MEMORY|NGX_HUNK_TEMP; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
159 buf.pos = data; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
160 buf.last = data; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
161 buf.start = data; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
162 buf.end = data + sizeof(ngx_http_cache_header_t); |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
163 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
164 rc = ngx_http_cache_open_file(&ctx, 0); |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
165 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
166 /* TODO: NGX_AGAIN */ |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
167 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
168 if (rc != NGX_ERROR && rc != NGX_DECLINED && rc != NGX_HTTP_CACHE_STALE) { |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
169 return NGX_OK; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
170 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
171 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
172 if (ngx_delete_file(name->data) == NGX_FILE_ERROR) { |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
173 ngx_log_error(NGX_LOG_CRIT, gc->log, ngx_errno, |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
174 ngx_delete_file_n " \"%s\" failed", name->data); |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
175 return NGX_ERROR; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
176 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
177 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
178 gc->deleted++; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
179 gc->freed += ngx_de_size(dir); |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
180 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
181 return NGX_OK; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
182 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
183 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
189
diff
changeset
|
184 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
185 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
|
186 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
|
187 { |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
188 int retry; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
189 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
|
190 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
191 retry = 0; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
192 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
193 for ( ;; ) { |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
185
diff
changeset
|
194 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
|
195 return NGX_OK; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
196 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
197 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
198 err = ngx_errno; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
199 |
186
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
185
diff
changeset
|
200 #if (WIN32) |
c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
185
diff
changeset
|
201 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
|
202 if (ngx_win32_rename_file(temp_file, &ctx->file.name, r->pool) |
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203 == NGX_ERROR) |
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204 { |
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205 return NGX_ERROR; |
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206 } |
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207 } |
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208 #endif |
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209 |
170
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210 if (retry || (err != NGX_ENOENT && err != NGX_ENOTDIR)) { |
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211 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, |
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212 ngx_rename_file_n "(\"%s\", \"%s\") failed", |
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213 temp_file->data, ctx->file.name.data); |
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214 |
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215 return NGX_ERROR; |
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216 } |
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217 |
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218 if (ngx_create_path(&ctx->file, ctx->path) == NGX_ERROR) { |
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219 return NGX_ERROR; |
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220 } |
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221 |
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222 retry = 1; |
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223 } |
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224 } |
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225 |
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226 |
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227 #if 0 |
97
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228 |
99
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229 /* |
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230 * small file in malloc()ed memory, mmap()ed file, file descriptor only, |
105
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231 * file access time only (to estimate could pages still be in memory), |
99
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232 * translated URI (ngx_http_index_hanlder), |
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233 * compiled script (ngx_http_ssi_filter). |
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234 */ |
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235 |
97
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236 |
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237 #define NGX_HTTP_CACHE_ENTRY_DELETED 0x00000001 |
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238 #define NGX_HTTP_CACHE_ENTRY_MMAPED 0x00000002 |
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239 |
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240 /* "/" -> "/index.html" in ngx_http_index_handler */ |
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241 #define NGX_HTTP_CACHE_ENTRY_URI 0x00000004 |
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242 |
105
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243 /* 301 location "/dir" -> "dir/" in ngx_http_core_handler */ |
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244 |
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245 /* compiled script in ngx_http_ssi_filter */ |
99
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246 #define NGX_HTTP_CACHE_ENTRY_SCRIPT 0x00000008 |
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247 |
97
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248 #define NGX_HTTP_CACHE_FILTER_FLAGS 0xFFFF0000 |
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249 |
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250 |
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251 typedef struct { |
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252 ngx_fd_t fd; |
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253 off_t size; |
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254 void *data; |
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255 time_t accessed; |
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256 time_t last_modified; |
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257 time_t updated; /* no needed with kqueue */ |
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258 int refs; |
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259 int flags; |
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260 } ngx_http_cache_entry_t; |
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261 |
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|
262 |
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263 typedef struct { |
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|
264 u_int32_t crc; |
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|
265 ngx_str_t uri; |
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266 ngx_http_cache_t *cache; |
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267 } ngx_http_cache_hash_entry_t; |
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|
268 |
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|
269 |
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270 typedef struct { |
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271 ngx_http_cache_t *cache; |
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|
272 u_int32_t crc; |
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273 int n; |
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274 } ngx_http_cache_handle_t; |
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275 |
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276 |
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277 int ngx_http_cache_get(ngx_http_cache_hash_t *cache_hash, |
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278 ngx_str_t *uri, ngx_http_cache_handle_t *h) |
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279 { |
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280 int hi; |
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281 ngx_http_cache_hash_entry_t *entry; |
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282 |
99
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283 h->crc = ngx_crc(uri->data, uri->len); |
97
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284 |
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285 hi = h->crc % cache_hash->size; |
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|
286 entry = cache_hash[hi].elts; |
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parents:
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|
287 |
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|
288 for (i = 0; i < cache_hash[hi].nelts; i++) { |
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289 if (entry[i].crc == crc |
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290 && entry[i].uri.len == uri->len |
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291 && ngx_strncmp(entry[i].uri.data, uri->data, uri->len) == 0 |
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292 { |
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293 h->cache = entry[i].cache; |
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294 h->cache->refs++; |
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295 h->n = hi; |
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296 return NGX_OK; |
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|
297 } |
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|
298 } |
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|
299 |
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300 return NGX_ERROR; |
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|
301 } |
99
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parents:
97
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|
302 |
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97
diff
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|
303 |
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97
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|
304 /* 32-bit crc16 */ |
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97
diff
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|
305 |
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|
306 int ngx_crc(char *data, size_t len) |
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307 { |
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|
308 u_int32_t sum; |
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diff
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|
309 |
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310 for (sum = 0; len; len--) { |
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311 /* |
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312 * gcc 2.95.2 x86 and icc 7.1.006 compile that operator |
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313 * into the single rol opcode. |
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314 * msvc 6.0sp2 compiles it into four opcodes. |
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315 */ |
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316 sum = sum >> 1 | sum << 31; |
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317 |
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318 sum += *data++; |
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319 } |
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320 |
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321 return sum; |
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322 } |
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323 |
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324 #endif |