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annotate src/core/ngx_file.c @ 83:a7e45c45a95c

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nginx-0.0.1-2003-04-28-19:06:39 import
author Igor Sysoev <igor@sysoev.ru>
date Mon, 28 Apr 2003 15:06:39 +0000
parents 869b10be682f
children 19cc647ecd91
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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1
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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2 #include <ngx_config.h>
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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3 #include <ngx_core.h>
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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4 #include <ngx_hunk.h>
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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5 #include <ngx_array.h>
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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6 #include <ngx_file.h>
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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7 #include <ngx_files.h>
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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8
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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9
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a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
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10 static int ngx_temp_number;
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
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11 static int ngx_random;
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13
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17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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14 int ngx_create_temp_file(ngx_file_t *file, ngx_path_t *path,
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a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
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15 ngx_pool_t *pool, int persistent)
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17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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16 {
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a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
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17 int i, num;
74
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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18 ngx_err_t err;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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19
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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20 file->name.len = path->name.len + 1 + path->len + 10;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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21
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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22 ngx_test_null(file->name.data, ngx_palloc(pool, file->name.len + 1),
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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23 NGX_ERROR);
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24
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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25 #if 0
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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26 for (i = 0; i < file->name.len; i++) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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27 file->name.data[i] = 'X';
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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28 }
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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29 #endif
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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30
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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31 ngx_memcpy(file->name.data, path->name.data, path->name.len);
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32
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33 num = ngx_next_temp_number(0);
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34
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35 for ( ;; ) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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36 snprintf(file->name.data + path->name.len + 1 + path->len, 11,
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869b10be682f nginx-0.0.1-2003-04-14-21:04:58 import
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37 "%010u", num);
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38
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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39 ngx_create_hashed_filename(file, path);
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40
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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41 #if 0
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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42 #if (WIN32)
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
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43 file->fd = CreateFile(file->name.data,
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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44 GENERIC_READ|GENERIC_WRITE,
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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45 FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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46 NULL,
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47 CREATE_NEW,
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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48 persistent ? 0:
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49 FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE,
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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50 NULL);
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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51 #else
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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52 file->fd = open(file->name.data, O_CREAT|O_EXCL|O_WRONLY, 0600);
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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53 #endif
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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54 #endif
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55
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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56 file->fd = ngx_open_tempfile(file->name.data, persistent);
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57
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58 ngx_log_debug(file->log, "temp fd: %d" _ file->fd);
869b10be682f nginx-0.0.1-2003-04-14-21:04:58 import
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59
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17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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60 if (file->fd != NGX_INVALID_FILE) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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61 return NGX_OK;
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62 }
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63
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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64 err = ngx_errno;
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65
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66 if (err == NGX_EEXIST) {
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67 num = ngx_next_temp_number(1);
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68 continue;
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69 }
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70
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71 if (err != NGX_ENOENT
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72 #if (WIN32_NEED_TEST)
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73 && err != NGX_ENOTDIR
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74 #endif
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75 ) {
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76 ngx_log_error(NGX_LOG_CRIT, file->log, err,
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77 ngx_open_tempfile_n " \"%s\" failed",
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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78 file->name.data);
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79 return NGX_ERROR;
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80 }
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81
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82 if (ngx_create_path(file, path) == NGX_ERROR) {
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83 return NGX_ERROR;
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84 }
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85 }
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86 }
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87
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89 void ngx_create_hashed_filename(ngx_file_t *file, ngx_path_t *path)
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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90 {
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91 int i, name, pos, level;
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92
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93 name = file->name.len;
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94 pos = path->name.len + 1;
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95
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96 file->name.data[path->name.len + path->len] = '/';
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97
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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98 for (i = 0; i < 3; i++) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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99 level = path->level[i];
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100
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101 if (level == 0) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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102 break;
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103 }
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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104
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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105 ngx_log_debug(file->log, "temp: %s" _ file->name.data);
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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106
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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107 name -= level;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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108 file->name.data[pos - 1] = '/';
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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109 ngx_memcpy(&file->name.data[pos], &file->name.data[name], level);
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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110 pos += level + 1;
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111 }
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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112
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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113 ngx_log_debug(file->log, "temp: %s" _ file->name.data);
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114 }
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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115
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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116
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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117 int ngx_create_path(ngx_file_t *file, ngx_path_t *path)
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
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diff changeset
118 {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
119 int i, pos;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
120 ngx_err_t err;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
121
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
122 pos = path->name.len;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
123
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
124 for (i = 0; i < 3; i++) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
125 if (path->level[i] == 0) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
126 break;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
127 }
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
128
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
129 pos += path->level[i] + 1;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
130
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
131 file->name.data[pos] = '\0';
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
132
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
133 ngx_log_debug(file->log, "temp: %s" _ file->name.data);
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
134
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
135 if (ngx_mkdir(file->name.data) == NGX_FILE_ERROR) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
136 err = ngx_errno;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
137 if (err != NGX_EEXIST) {
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
138 ngx_log_error(NGX_LOG_CRIT, file->log, err,
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
139 ngx_mkdir_n " \"%s\" failed", file->name.data);
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
140 return NGX_ERROR;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
141 }
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
142 }
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144 file->name.data[pos] = '/';
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145 }
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
147 return NGX_OK;
17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
148 }
83
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
149
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
150
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
151 void ngx_init_temp_number()
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
152 {
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
153 ngx_random = 0;
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
154
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
155 ngx_temp_number = ngx_random;
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
156
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
157 while (ngx_random < 10000) {
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
158 ngx_random = 123456;
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
159 }
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
160 }
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
161
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
162
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
163 int ngx_next_temp_number(int collision)
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
164 {
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
165 if (collision) {
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
166 ngx_temp_number += ngx_random;
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
167 }
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
168
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
169 return ngx_temp_number++;
a7e45c45a95c nginx-0.0.1-2003-04-28-19:06:39 import
Igor Sysoev <igor@sysoev.ru>
parents: 75
diff changeset
170 }