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| 1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 92 | 92 |
| 93 int64_t OS::Ticks() { | 93 int64_t OS::Ticks() { |
| 94 // gettimeofday has microsecond resolution. | 94 // gettimeofday has microsecond resolution. |
| 95 struct timeval tv; | 95 struct timeval tv; |
| 96 if (gettimeofday(&tv, NULL) < 0) | 96 if (gettimeofday(&tv, NULL) < 0) |
| 97 return 0; | 97 return 0; |
| 98 return (static_cast<int64_t>(tv.tv_sec) * 1000000) + tv.tv_usec; | 98 return (static_cast<int64_t>(tv.tv_sec) * 1000000) + tv.tv_usec; |
| 99 } | 99 } |
| 100 | 100 |
| 101 | 101 |
| 102 const char* OS::LocalTimezone(double time) { | |
| 103 if (isnan(time)) return ""; | |
| 104 time_t tv = static_cast<time_t>(floor(time/msPerSecond)); | |
| 105 struct tm* t = localtime(&tv); | |
| 106 if (NULL == t) return ""; | |
| 107 return t->tm_zone; | |
| 108 } | |
| 109 | |
| 110 | |
| 111 double OS::DaylightSavingsOffset(double time) { | 102 double OS::DaylightSavingsOffset(double time) { |
| 112 if (isnan(time)) return nan_value(); | 103 if (isnan(time)) return nan_value(); |
| 113 time_t tv = static_cast<time_t>(floor(time/msPerSecond)); | 104 time_t tv = static_cast<time_t>(floor(time/msPerSecond)); |
| 114 struct tm* t = localtime(&tv); | 105 struct tm* t = localtime(&tv); |
| 115 if (NULL == t) return nan_value(); | 106 if (NULL == t) return nan_value(); |
| 116 return t->tm_isdst > 0 ? 3600 * msPerSecond : 0; | 107 return t->tm_isdst > 0 ? 3600 * msPerSecond : 0; |
| 117 } | 108 } |
| 118 | 109 |
| 119 | 110 |
| 120 double OS::LocalTimeOffset() { | |
| 121 time_t tv = time(NULL); | |
| 122 struct tm* t = localtime(&tv); | |
| 123 // tm_gmtoff includes any daylight savings offset, so subtract it. | |
| 124 return static_cast<double>(t->tm_gmtoff * msPerSecond - | |
| 125 (t->tm_isdst > 0 ? 3600 * msPerSecond : 0)); | |
| 126 } | |
| 127 | |
| 128 | |
| 129 // ---------------------------------------------------------------------------- | 111 // ---------------------------------------------------------------------------- |
| 130 // POSIX stdio support. | 112 // POSIX stdio support. |
| 131 // | 113 // |
| 132 | 114 |
| 133 FILE* OS::FOpen(const char* path, const char* mode) { | 115 FILE* OS::FOpen(const char* path, const char* mode) { |
| 134 return fopen(path, mode); | 116 return fopen(path, mode); |
| 135 } | 117 } |
| 136 | 118 |
| 137 | 119 |
| 138 const char* OS::LogFileOpenMode = "w"; | 120 const char* OS::LogFileOpenMode = "w"; |
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| 371 return ntohl(value); | 353 return ntohl(value); |
| 372 } | 354 } |
| 373 | 355 |
| 374 | 356 |
| 375 Socket* OS::CreateSocket() { | 357 Socket* OS::CreateSocket() { |
| 376 return new POSIXSocket(); | 358 return new POSIXSocket(); |
| 377 } | 359 } |
| 378 | 360 |
| 379 | 361 |
| 380 } } // namespace v8::internal | 362 } } // namespace v8::internal |
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