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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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140 } | 140 } |
141 | 141 |
142 | 142 |
143 double ceiling(double x) { | 143 double ceiling(double x) { |
144 return ceil(x); | 144 return ceil(x); |
145 } | 145 } |
146 | 146 |
147 | 147 |
148 static Mutex* limit_mutex = NULL; | 148 static Mutex* limit_mutex = NULL; |
149 | 149 |
150 #if defined(V8_TARGET_ARCH_IA32) | 150 #if V8_TARGET_ARCH_IA32 |
151 static void MemMoveWrapper(void* dest, const void* src, size_t size) { | 151 static void MemMoveWrapper(void* dest, const void* src, size_t size) { |
152 memmove(dest, src, size); | 152 memmove(dest, src, size); |
153 } | 153 } |
154 | 154 |
155 // Initialize to library version so we can call this at any time during startup. | 155 // Initialize to library version so we can call this at any time during startup. |
156 static OS::MemMoveFunction memmove_function = &MemMoveWrapper; | 156 static OS::MemMoveFunction memmove_function = &MemMoveWrapper; |
157 | 157 |
158 // Defined in codegen-ia32.cc. | 158 // Defined in codegen-ia32.cc. |
159 OS::MemMoveFunction CreateMemMoveFunction(); | 159 OS::MemMoveFunction CreateMemMoveFunction(); |
160 | 160 |
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573 // Return the standard or DST time zone name based on whether daylight | 573 // Return the standard or DST time zone name based on whether daylight |
574 // saving is in effect at the given time. | 574 // saving is in effect at the given time. |
575 return InDST() ? dst_tz_name_ : std_tz_name_; | 575 return InDST() ? dst_tz_name_ : std_tz_name_; |
576 } | 576 } |
577 | 577 |
578 | 578 |
579 void OS::PostSetUp() { | 579 void OS::PostSetUp() { |
580 // Math functions depend on CPU features therefore they are initialized after | 580 // Math functions depend on CPU features therefore they are initialized after |
581 // CPU. | 581 // CPU. |
582 MathSetup(); | 582 MathSetup(); |
583 #if defined(V8_TARGET_ARCH_IA32) | 583 #if V8_TARGET_ARCH_IA32 |
584 OS::MemMoveFunction generated_memmove = CreateMemMoveFunction(); | 584 OS::MemMoveFunction generated_memmove = CreateMemMoveFunction(); |
585 if (generated_memmove != NULL) { | 585 if (generated_memmove != NULL) { |
586 memmove_function = generated_memmove; | 586 memmove_function = generated_memmove; |
587 } | 587 } |
588 #endif | 588 #endif |
589 } | 589 } |
590 | 590 |
591 | 591 |
592 // Returns the accumulated user time for thread. | 592 // Returns the accumulated user time for thread. |
593 int OS::GetUserTime(uint32_t* secs, uint32_t* usecs) { | 593 int OS::GetUserTime(uint32_t* secs, uint32_t* usecs) { |
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1981 limit_mutex = CreateMutex(); | 1981 limit_mutex = CreateMutex(); |
1982 } | 1982 } |
1983 | 1983 |
1984 | 1984 |
1985 void OS::TearDown() { | 1985 void OS::TearDown() { |
1986 delete limit_mutex; | 1986 delete limit_mutex; |
1987 } | 1987 } |
1988 | 1988 |
1989 | 1989 |
1990 } } // namespace v8::internal | 1990 } } // namespace v8::internal |
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