Mercurial > hg > nginx
annotate src/core/ngx_parse.c @ 3088:588c4b56875e stable-0.7
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 07 Sep 2009 09:15:47 +0000 |
parents | 9d2bdbda4ee3 |
children | c352c483263c |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 |
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10 |
563 | 11 ssize_t |
12 ngx_parse_size(ngx_str_t *line) | |
157
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13 { |
1971 | 14 u_char unit; |
290
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15 size_t len; |
563 | 16 ssize_t size; |
17 ngx_int_t scale; | |
157
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18 |
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19 len = line->len; |
1971 | 20 unit = line->data[len - 1]; |
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21 |
1971 | 22 switch (unit) { |
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23 case 'K': |
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24 case 'k': |
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25 len--; |
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26 scale = 1024; |
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27 break; |
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28 |
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29 case 'M': |
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30 case 'm': |
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31 len--; |
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32 scale = 1024 * 1024; |
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33 break; |
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34 |
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35 default: |
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36 scale = 1; |
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37 } |
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38 |
563 | 39 size = ngx_atosz(line->data, len); |
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40 if (size == NGX_ERROR) { |
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41 return NGX_ERROR; |
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42 } |
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43 |
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44 size *= scale; |
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45 |
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46 return size; |
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47 } |
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48 |
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49 |
663 | 50 off_t |
51 ngx_parse_offset(ngx_str_t *line) | |
52 { | |
1971 | 53 u_char unit; |
663 | 54 off_t offset; |
55 size_t len; | |
56 ngx_int_t scale; | |
57 | |
58 len = line->len; | |
1971 | 59 unit = line->data[len - 1]; |
663 | 60 |
1971 | 61 switch (unit) { |
663 | 62 case 'K': |
63 case 'k': | |
64 len--; | |
65 scale = 1024; | |
66 break; | |
67 | |
68 case 'M': | |
69 case 'm': | |
70 len--; | |
71 scale = 1024 * 1024; | |
72 break; | |
73 | |
74 case 'G': | |
75 case 'g': | |
76 len--; | |
77 scale = 1024 * 1024 * 1024; | |
78 break; | |
79 | |
80 default: | |
81 scale = 1; | |
82 } | |
83 | |
84 offset = ngx_atoof(line->data, len); | |
85 if (offset == NGX_ERROR) { | |
86 return NGX_ERROR; | |
87 } | |
88 | |
89 offset *= scale; | |
90 | |
91 return offset; | |
92 } | |
93 | |
94 | |
563 | 95 ngx_int_t |
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96 ngx_parse_time(ngx_str_t *line, ngx_uint_t sec) |
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97 { |
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98 u_char *p, *last; |
651 | 99 ngx_int_t value, total, scale; |
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100 ngx_uint_t max, valid; |
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101 enum { |
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102 st_start = 0, |
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103 st_year, |
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104 st_month, |
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105 st_week, |
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106 st_day, |
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107 st_hour, |
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108 st_min, |
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109 st_sec, |
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110 st_msec, |
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111 st_last |
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112 } step; |
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113 |
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114 valid = 0; |
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115 value = 0; |
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116 total = 0; |
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117 step = sec ? st_start : st_month; |
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118 scale = sec ? 1 : 1000; |
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119 |
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120 p = line->data; |
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121 last = p + line->len; |
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122 |
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123 while (p < last) { |
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124 |
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125 if (*p >= '0' && *p <= '9') { |
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126 value = value * 10 + (*p++ - '0'); |
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127 valid = 1; |
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128 continue; |
157
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129 } |
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130 |
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131 switch (*p++) { |
157
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132 |
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133 case 'y': |
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134 if (step > st_start) { |
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135 return NGX_ERROR; |
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136 } |
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137 step = st_year; |
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138 max = 68; |
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139 scale = 60 * 60 * 24 * 365; |
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140 break; |
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141 |
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142 case 'M': |
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143 if (step > st_year) { |
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144 return NGX_ERROR; |
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145 } |
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146 step = st_month; |
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147 max = 828; |
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148 scale = 60 * 60 * 24 * 30; |
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149 break; |
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150 |
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151 case 'w': |
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152 if (step > st_month) { |
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153 return NGX_ERROR; |
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154 } |
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155 step = st_week; |
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156 max = 3550; |
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157 scale = 60 * 60 * 24 * 7; |
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158 break; |
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159 |
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160 case 'd': |
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161 if (step > st_week) { |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
162 return NGX_ERROR; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
163 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
164 step = st_day; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
165 max = 24855; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
166 scale = 60 * 60 * 24; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
167 break; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
168 |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
169 case 'h': |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
170 if (step > st_day) { |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
171 return NGX_ERROR; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
172 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
173 step = st_hour; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
174 max = 596523; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 scale = 60 * 60; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 break; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
177 |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
178 case 'm': |
1972
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
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parents:
1971
diff
changeset
|
179 if (*p == 's') { |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
180 if (sec || step > st_sec) { |
9d2bdbda4ee3
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Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
181 return NGX_ERROR; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
182 } |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
183 p++; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
184 step = st_msec; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
185 max = 2147483647; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
186 scale = 1; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
187 break; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
188 } |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
189 |
157
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
190 if (step > st_hour) { |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
191 return NGX_ERROR; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
192 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
193 step = st_min; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
194 max = 35791394; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 scale = 60; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 break; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
198 case 's': |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 if (step > st_min) { |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 return NGX_ERROR; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
201 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
202 step = st_sec; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
203 max = 2147483647; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 scale = 1; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
205 break; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
206 |
1972
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
207 case ' ': |
9d2bdbda4ee3
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Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
208 if (step > st_min) { |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
209 return NGX_ERROR; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
210 } |
157
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
211 step = st_last; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
212 max = 2147483647; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 scale = 1; |
1972
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
214 break; |
157
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 |
1972
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
216 default: |
157
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
217 return NGX_ERROR; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
218 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
219 |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
220 if (step != st_msec && !sec) { |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
221 scale *= 1000; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
222 max /= 1000; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
223 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
224 |
1972
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
225 if ((ngx_uint_t) value > max) { |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
226 return NGX_ERROR; |
157
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
227 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
228 |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
229 total += value * scale; |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
230 |
1972
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
231 if ((ngx_uint_t) total > 2147483647) { |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
232 return NGX_ERROR; |
157
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
233 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
234 |
1972
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
235 value = 0; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
236 scale = sec ? 1 : 1000; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
237 |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
238 while (p < last && *p == ' ') { |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
239 p++; |
157
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
240 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
241 } |
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
242 |
1972
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
243 if (valid) { |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
244 return total + value * scale; |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
245 } |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
246 |
9d2bdbda4ee3
allow time without spaces in ngx_parse_time()
Igor Sysoev <igor@sysoev.ru>
parents:
1971
diff
changeset
|
247 return NGX_ERROR; |
157
70b36c805682
nginx-0.0.1-2003-10-23-19:54:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
248 } |