Mercurial > hg > nginx
annotate src/os/win32/ngx_files.h @ 7142:b9d919b53593 stable-1.12
Stream: relaxed next upstream condition (ticket #1317).
When switching to a next upstream, some buffers could be stuck in the middle
of the filter chain. A condition existed that raised an error when this
happened. As it turned out, this condition prevented switching to a next
upstream if ssl preread was used with the TCP protocol (see the ticket).
In fact, the condition does not make sense for TCP, since after successful
connection to an upstream switching to another upstream never happens. As for
UDP, the issue with stuck buffers is unlikely to happen, but is still possible.
Specifically, if a filter delays sending data to upstream.
The condition can be relaxed to only check the "buffered" bitmask of the
upstream connection. The new condition is simpler and fixes the ticket issue
as well. Additionally, the upstream_out chain is now reset for UDP prior to
connecting to a new upstream to prevent repeating the client data twice.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Mon, 11 Sep 2017 15:32:31 +0300 |
parents | db138b3b645e |
children | 061ec464813f |
rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #ifndef _NGX_FILES_H_INCLUDED_ |
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9 #define _NGX_FILES_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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16 typedef HANDLE ngx_fd_t; |
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17 typedef BY_HANDLE_FILE_INFORMATION ngx_file_info_t; |
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18 typedef uint64_t ngx_file_uniq_t; |
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19 |
3651 | 20 |
21 typedef struct { | |
22 u_char *name; | |
23 size_t size; | |
24 void *addr; | |
25 ngx_fd_t fd; | |
26 HANDLE handle; | |
27 ngx_log_t *log; | |
28 } ngx_file_mapping_t; | |
29 | |
30 | |
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31 typedef struct { |
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32 HANDLE dir; |
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33 WIN32_FIND_DATA finddata; |
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34 |
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35 unsigned valid_info:1; |
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36 unsigned type:1; |
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37 unsigned ready:1; |
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38 } ngx_dir_t; |
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39 |
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40 |
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41 typedef struct { |
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42 HANDLE dir; |
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43 WIN32_FIND_DATA finddata; |
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44 |
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45 unsigned ready:1; |
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46 unsigned test:1; |
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47 unsigned no_match:1; |
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48 |
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49 u_char *pattern; |
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50 ngx_str_t name; |
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51 size_t last; |
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52 ngx_log_t *log; |
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53 } ngx_glob_t; |
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57 /* INVALID_FILE_ATTRIBUTES is specified but not defined at least in MSVC6SP2 */ |
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58 #ifndef INVALID_FILE_ATTRIBUTES |
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59 #define INVALID_FILE_ATTRIBUTES 0xffffffff |
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60 #endif |
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62 /* INVALID_SET_FILE_POINTER is not defined at least in MSVC6SP2 */ |
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63 #ifndef INVALID_SET_FILE_POINTER |
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64 #define INVALID_SET_FILE_POINTER 0xffffffff |
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65 #endif |
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68 #define NGX_INVALID_FILE INVALID_HANDLE_VALUE |
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69 #define NGX_FILE_ERROR 0 |
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72 ngx_fd_t ngx_open_file(u_char *name, u_long mode, u_long create, u_long access); |
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73 #define ngx_open_file_n "CreateFile()" |
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75 #define NGX_FILE_RDONLY GENERIC_READ |
1054 | 76 #define NGX_FILE_WRONLY GENERIC_WRITE |
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77 #define NGX_FILE_RDWR GENERIC_READ|GENERIC_WRITE |
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78 #define NGX_FILE_APPEND FILE_APPEND_DATA|SYNCHRONIZE |
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79 #define NGX_FILE_NONBLOCK 0 |
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81 #define NGX_FILE_CREATE_OR_OPEN OPEN_ALWAYS |
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82 #define NGX_FILE_OPEN OPEN_EXISTING |
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83 #define NGX_FILE_TRUNCATE CREATE_ALWAYS |
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84 |
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85 #define NGX_FILE_DEFAULT_ACCESS 0 |
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86 #define NGX_FILE_OWNER_ACCESS 0 |
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88 |
1047 | 89 #define ngx_open_tempfile(name, persistent, access) \ |
90 CreateFile((const char *) name, \ | |
91 GENERIC_READ|GENERIC_WRITE, \ | |
92 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, \ | |
93 NULL, \ | |
94 CREATE_NEW, \ | |
95 persistent ? 0: \ | |
96 FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE, \ | |
497 | 97 NULL); |
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99 #define ngx_open_tempfile_n "CreateFile()" |
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102 #define ngx_close_file CloseHandle |
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103 #define ngx_close_file_n "CloseHandle()" |
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105 |
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106 ssize_t ngx_read_fd(ngx_fd_t fd, void *buf, size_t size); |
1055 | 107 #define ngx_read_fd_n "ReadFile()" |
108 | |
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110 ssize_t ngx_write_fd(ngx_fd_t fd, void *buf, size_t size); |
1055 | 111 #define ngx_write_fd_n "WriteFile()" |
112 | |
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113 |
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114 ssize_t ngx_write_console(ngx_fd_t fd, void *buf, size_t size); |
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115 |
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116 |
571 | 117 #define ngx_linefeed(p) *p++ = CR; *p++ = LF; |
118 #define NGX_LINEFEED_SIZE 2 | |
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119 #define NGX_LINEFEED CRLF |
571 | 120 |
121 | |
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122 #define ngx_delete_file(name) DeleteFile((const char *) name) |
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123 #define ngx_delete_file_n "DeleteFile()" |
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124 |
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125 |
633 | 126 #define ngx_rename_file(o, n) MoveFile((const char *) o, (const char *) n) |
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127 #define ngx_rename_file_n "MoveFile()" |
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128 ngx_err_t ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_log_t *log); |
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129 |
186
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130 |
681 | 131 |
132 ngx_int_t ngx_set_file_time(u_char *name, ngx_fd_t fd, time_t s); | |
133 #define ngx_set_file_time_n "SetFileTime()" | |
134 | |
135 | |
467 | 136 ngx_int_t ngx_file_info(u_char *filename, ngx_file_info_t *fi); |
186
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137 #define ngx_file_info_n "GetFileAttributesEx()" |
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138 |
186
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139 |
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140 #define ngx_fd_info(fd, fi) GetFileInformationByHandle(fd, fi) |
681 | 141 #define ngx_fd_info_n "GetFileInformationByHandle()" |
186
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142 |
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143 |
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144 #define ngx_link_info(name, fi) ngx_file_info(name, fi) |
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145 #define ngx_link_info_n "GetFileAttributesEx()" |
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146 |
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147 |
2461 | 148 #define ngx_is_dir(fi) \ |
149 (((fi)->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0) | |
150 #define ngx_is_file(fi) \ | |
151 (((fi)->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0) | |
669 | 152 #define ngx_is_link(fi) 0 |
1436 | 153 #define ngx_is_exec(fi) 0 |
186
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154 |
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155 #define ngx_file_access(fi) 0 |
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156 |
186
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157 #define ngx_file_size(fi) \ |
497 | 158 (((off_t) (fi)->nFileSizeHigh << 32) | (fi)->nFileSizeLow) |
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159 #define ngx_file_fs_size(fi) ngx_file_size(fi) |
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160 |
186
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161 #define ngx_file_uniq(fi) (*(ngx_file_uniq_t *) &(fi)->nFileIndexHigh) |
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162 |
179
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163 |
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164 /* 116444736000000000 is commented in src/os/win32/ngx_time.c */ |
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165 |
186
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166 #define ngx_file_mtime(fi) \ |
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167 (time_t) (((((unsigned __int64) (fi)->ftLastWriteTime.dwHighDateTime << 32) \ |
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168 | (fi)->ftLastWriteTime.dwLowDateTime) \ |
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169 - 116444736000000000) / 10000000) |
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170 |
3651 | 171 ngx_int_t ngx_create_file_mapping(ngx_file_mapping_t *fm); |
172 void ngx_close_file_mapping(ngx_file_mapping_t *fm); | |
173 | |
174 | |
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175 u_char *ngx_realpath(u_char *path, u_char *resolved); |
2259 | 176 #define ngx_realpath_n "" |
2758 | 177 #define ngx_getcwd(buf, size) GetCurrentDirectory(size, (char *) buf) |
336
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178 #define ngx_getcwd_n "GetCurrentDirectory()" |
2744 | 179 #define ngx_path_separator(c) ((c) == '/' || (c) == '\\') |
180 | |
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181 #define NGX_HAVE_MAX_PATH 1 |
336
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182 #define NGX_MAX_PATH MAX_PATH |
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183 |
292
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184 #define NGX_DIR_MASK (u_char *) "/*" |
186
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185 #define NGX_DIR_MASK_LEN 2 |
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186 |
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187 |
467 | 188 ngx_int_t ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir); |
186
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189 #define ngx_open_dir_n "FindFirstFile()" |
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190 |
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191 |
467 | 192 ngx_int_t ngx_read_dir(ngx_dir_t *dir); |
186
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193 #define ngx_read_dir_n "FindNextFile()" |
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194 |
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195 |
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196 ngx_int_t ngx_close_dir(ngx_dir_t *dir); |
186
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197 #define ngx_close_dir_n "FindClose()" |
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198 |
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199 |
669 | 200 #define ngx_create_dir(name, access) CreateDirectory((const char *) name, NULL) |
186
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201 #define ngx_create_dir_n "CreateDirectory()" |
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202 |
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203 |
292
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204 #define ngx_delete_dir(name) RemoveDirectory((const char *) name) |
186
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205 #define ngx_delete_dir_n "RemoveDirectory()" |
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206 |
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207 |
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208 #define ngx_dir_access(a) (a) |
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209 |
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210 |
727 | 211 #define ngx_de_name(dir) ((u_char *) (dir)->finddata.cFileName) |
212 #define ngx_de_namelen(dir) ngx_strlen((dir)->finddata.cFileName) | |
501 | 213 |
214 ngx_int_t ngx_de_info(u_char *name, ngx_dir_t *dir); | |
186
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215 #define ngx_de_info_n "dummy()" |
501 | 216 |
217 ngx_int_t ngx_de_link_info(u_char *name, ngx_dir_t *dir); | |
497 | 218 #define ngx_de_link_info_n "dummy()" |
501 | 219 |
1047 | 220 #define ngx_de_is_dir(dir) \ |
2461 | 221 (((dir)->finddata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0) |
1047 | 222 #define ngx_de_is_file(dir) \ |
2461 | 223 (((dir)->finddata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0) |
497 | 224 #define ngx_de_is_link(dir) 0 |
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225 #define ngx_de_access(dir) 0 |
1047 | 226 #define ngx_de_size(dir) \ |
727 | 227 (((off_t) (dir)->finddata.nFileSizeHigh << 32) | (dir)->finddata.nFileSizeLow) |
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228 #define ngx_de_fs_size(dir) ngx_de_size(dir) |
186
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229 |
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230 /* 116444736000000000 is commented in src/os/win32/ngx_time.c */ |
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231 |
1047 | 232 #define ngx_de_mtime(dir) \ |
233 (time_t) (((((unsigned __int64) \ | |
234 (dir)->finddata.ftLastWriteTime.dwHighDateTime << 32) \ | |
235 | (dir)->finddata.ftLastWriteTime.dwLowDateTime) \ | |
186
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236 - 116444736000000000) / 10000000) |
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237 |
727 | 238 |
239 ngx_int_t ngx_open_glob(ngx_glob_t *gl); | |
2129 | 240 #define ngx_open_glob_n "FindFirstFile()" |
727 | 241 |
242 ngx_int_t ngx_read_glob(ngx_glob_t *gl, ngx_str_t *name); | |
243 void ngx_close_glob(ngx_glob_t *gl); | |
186
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244 |
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245 |
290
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246 ssize_t ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset); |
98
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247 #define ngx_read_file_n "ReadFile()" |
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248 |
290
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249 ssize_t ngx_write_file(ngx_file_t *file, u_char *buf, size_t size, |
497 | 250 off_t offset); |
182
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251 |
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252 ssize_t ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *ce, |
497 | 253 off_t offset, ngx_pool_t *pool); |
182
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254 |
3178 | 255 ngx_int_t ngx_read_ahead(ngx_fd_t fd, size_t n); |
256 #define ngx_read_ahead_n "ngx_read_ahead_n" | |
182
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257 |
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258 ngx_int_t ngx_directio_on(ngx_fd_t fd); |
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259 #define ngx_directio_on_n "ngx_directio_on_n" |
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260 |
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261 ngx_int_t ngx_directio_off(ngx_fd_t fd); |
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262 #define ngx_directio_off_n "ngx_directio_off_n" |
2129 | 263 |
2615 | 264 size_t ngx_fs_bsize(u_char *name); |
265 | |
2129 | 266 |
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267 #define ngx_stdout GetStdHandle(STD_OUTPUT_HANDLE) |
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268 #define ngx_stderr GetStdHandle(STD_ERROR_HANDLE) |
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269 #define ngx_set_stderr(fd) SetStdHandle(STD_ERROR_HANDLE, fd) |
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270 #define ngx_set_stderr_n "SetStdHandle(STD_ERROR_HANDLE)" |
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271 |
d8316f307b6a
issue start up errors and warning on both stderr and error_log
Igor Sysoev <igor@sysoev.ru>
parents:
2687
diff
changeset
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272 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
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273 #endif /* _NGX_FILES_H_INCLUDED_ */ |