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Issue 23469013: Reland "Add Chromium-style TimeDelta, Time and TimeTicks classes, and a new ElapsedTimer class." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: REBASE Created 7 years, 3 months ago
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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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562 } 562 }
563 563
564 564
565 Semaphore* OS::CreateSemaphore(int count) { 565 Semaphore* OS::CreateSemaphore(int count) {
566 return new LinuxSemaphore(count); 566 return new LinuxSemaphore(count);
567 } 567 }
568 568
569 569
570 void OS::SetUp() { 570 void OS::SetUp() {
571 // Seed the random number generator. We preserve microsecond resolution. 571 // Seed the random number generator. We preserve microsecond resolution.
572 uint64_t seed = Ticks() ^ (getpid() << 16); 572 uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis()) ^ (getpid() << 16);
573 srandom(static_cast<unsigned int>(seed)); 573 srandom(static_cast<unsigned int>(seed));
574 limit_mutex = CreateMutex(); 574 limit_mutex = CreateMutex();
575 } 575 }
576 576
577 577
578 void OS::TearDown() { 578 void OS::TearDown() {
579 delete limit_mutex; 579 delete limit_mutex;
580 } 580 }
581 581
582 582
583 } } // namespace v8::internal 583 } } // namespace v8::internal
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