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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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46 | 46 |
47 #undef MAP_TYPE | 47 #undef MAP_TYPE |
48 | 48 |
49 #if defined(ANDROID) && !defined(V8_ANDROID_LOG_STDOUT) | 49 #if defined(ANDROID) && !defined(V8_ANDROID_LOG_STDOUT) |
50 #define LOG_TAG "v8" | 50 #define LOG_TAG "v8" |
51 #include <android/log.h> | 51 #include <android/log.h> |
52 #endif | 52 #endif |
53 | 53 |
54 #include "v8.h" | 54 #include "v8.h" |
55 | 55 |
56 #include "codegen.h" | |
57 #include "platform.h" | 56 #include "platform.h" |
58 | 57 |
59 namespace v8 { | 58 namespace v8 { |
60 namespace internal { | 59 namespace internal { |
61 | 60 |
62 | 61 |
63 // Maximum size of the virtual memory. 0 means there is no artificial | 62 // Maximum size of the virtual memory. 0 means there is no artificial |
64 // limit. | 63 // limit. |
65 | 64 |
66 intptr_t OS::MaxVirtualMemory() { | 65 intptr_t OS::MaxVirtualMemory() { |
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120 | 119 |
121 | 120 |
122 // ---------------------------------------------------------------------------- | 121 // ---------------------------------------------------------------------------- |
123 // Math functions | 122 // Math functions |
124 | 123 |
125 double modulo(double x, double y) { | 124 double modulo(double x, double y) { |
126 return fmod(x, y); | 125 return fmod(x, y); |
127 } | 126 } |
128 | 127 |
129 | 128 |
130 static Mutex* transcendental_function_mutex = OS::CreateMutex(); | |
131 | |
132 #define TRANSCENDENTAL_FUNCTION(name, type) \ | |
133 static TranscendentalFunction fast_##name##_function = NULL; \ | |
134 double fast_##name(double x) { \ | |
135 if (fast_##name##_function == NULL) { \ | |
136 ScopedLock lock(transcendental_function_mutex); \ | |
137 TranscendentalFunction temp = \ | |
138 CreateTranscendentalFunction(type); \ | |
139 MemoryBarrier(); \ | |
140 fast_##name##_function = temp; \ | |
141 } \ | |
142 return (*fast_##name##_function)(x); \ | |
143 } | |
144 | |
145 TRANSCENDENTAL_FUNCTION(sin, TranscendentalCache::SIN) | |
146 TRANSCENDENTAL_FUNCTION(cos, TranscendentalCache::COS) | |
147 TRANSCENDENTAL_FUNCTION(tan, TranscendentalCache::TAN) | |
148 TRANSCENDENTAL_FUNCTION(log, TranscendentalCache::LOG) | |
149 | |
150 #undef TRANSCENDENTAL_FUNCTION | |
151 | |
152 | |
153 double OS::nan_value() { | 129 double OS::nan_value() { |
154 // NAN from math.h is defined in C99 and not in POSIX. | 130 // NAN from math.h is defined in C99 and not in POSIX. |
155 return NAN; | 131 return NAN; |
156 } | 132 } |
157 | 133 |
158 | 134 |
159 // ---------------------------------------------------------------------------- | 135 // ---------------------------------------------------------------------------- |
160 // POSIX date/time support. | 136 // POSIX date/time support. |
161 // | 137 // |
162 | 138 |
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515 return ntohl(value); | 491 return ntohl(value); |
516 } | 492 } |
517 | 493 |
518 | 494 |
519 Socket* OS::CreateSocket() { | 495 Socket* OS::CreateSocket() { |
520 return new POSIXSocket(); | 496 return new POSIXSocket(); |
521 } | 497 } |
522 | 498 |
523 | 499 |
524 } } // namespace v8::internal | 500 } } // namespace v8::internal |
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