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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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74 return x < 0; | 74 return x < 0; |
75 } | 75 } |
76 } | 76 } |
77 } // namespace std | 77 } // namespace std |
78 #endif // signbit | 78 #endif // signbit |
79 | 79 |
80 namespace v8 { | 80 namespace v8 { |
81 namespace internal { | 81 namespace internal { |
82 | 82 |
83 | 83 |
84 // 0 is never a valid thread id on Solaris since the main thread is 1 and | |
85 // subsequent have their ids incremented from there | |
86 static const pthread_t kNoThread = (pthread_t) 0; | |
87 | |
88 | |
89 double ceiling(double x) { | 84 double ceiling(double x) { |
90 return ceil(x); | 85 return ceil(x); |
91 } | 86 } |
92 | 87 |
93 | 88 |
94 static Mutex* limit_mutex = NULL; | 89 static Mutex* limit_mutex = NULL; |
95 | 90 |
96 | 91 |
97 uint64_t OS::CpuFeaturesImpliedByPlatform() { | 92 uint64_t OS::CpuFeaturesImpliedByPlatform() { |
98 return 0; // Solaris runs on a lot of things. | 93 return 0; // Solaris runs on a lot of things. |
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407 return munmap(base, size) == 0; | 402 return munmap(base, size) == 0; |
408 } | 403 } |
409 | 404 |
410 | 405 |
411 bool VirtualMemory::HasLazyCommits() { | 406 bool VirtualMemory::HasLazyCommits() { |
412 // TODO(alph): implement for the platform. | 407 // TODO(alph): implement for the platform. |
413 return false; | 408 return false; |
414 } | 409 } |
415 | 410 |
416 | 411 |
417 class Thread::PlatformData : public Malloced { | |
418 public: | |
419 PlatformData() : thread_(kNoThread) { } | |
420 | |
421 pthread_t thread_; // Thread handle for pthread. | |
422 }; | |
423 | |
424 | |
425 Thread::Thread(const Options& options) | |
426 : data_(new PlatformData()), | |
427 stack_size_(options.stack_size()), | |
428 start_semaphore_(NULL) { | |
429 set_name(options.name()); | |
430 } | |
431 | |
432 | |
433 Thread::~Thread() { | |
434 delete data_; | |
435 } | |
436 | |
437 | |
438 static void* ThreadEntry(void* arg) { | |
439 Thread* thread = reinterpret_cast<Thread*>(arg); | |
440 // This is also initialized by the first argument to pthread_create() but we | |
441 // don't know which thread will run first (the original thread or the new | |
442 // one) so we initialize it here too. | |
443 thread->data()->thread_ = pthread_self(); | |
444 ASSERT(thread->data()->thread_ != kNoThread); | |
445 thread->NotifyStartedAndRun(); | |
446 return NULL; | |
447 } | |
448 | |
449 | |
450 void Thread::set_name(const char* name) { | |
451 strncpy(name_, name, sizeof(name_)); | |
452 name_[sizeof(name_) - 1] = '\0'; | |
453 } | |
454 | |
455 | |
456 void Thread::Start() { | |
457 pthread_attr_t attr; | |
458 if (stack_size_ > 0) { | |
459 pthread_attr_init(&attr); | |
460 pthread_attr_setstacksize(&attr, static_cast<size_t>(stack_size_)); | |
461 } | |
462 pthread_create(&data_->thread_, NULL, ThreadEntry, this); | |
463 ASSERT(data_->thread_ != kNoThread); | |
464 } | |
465 | |
466 | |
467 void Thread::Join() { | |
468 pthread_join(data_->thread_, NULL); | |
469 } | |
470 | |
471 | |
472 Thread::LocalStorageKey Thread::CreateThreadLocalKey() { | |
473 pthread_key_t key; | |
474 int result = pthread_key_create(&key, NULL); | |
475 USE(result); | |
476 ASSERT(result == 0); | |
477 return static_cast<LocalStorageKey>(key); | |
478 } | |
479 | |
480 | |
481 void Thread::DeleteThreadLocalKey(LocalStorageKey key) { | |
482 pthread_key_t pthread_key = static_cast<pthread_key_t>(key); | |
483 int result = pthread_key_delete(pthread_key); | |
484 USE(result); | |
485 ASSERT(result == 0); | |
486 } | |
487 | |
488 | |
489 void* Thread::GetThreadLocal(LocalStorageKey key) { | |
490 pthread_key_t pthread_key = static_cast<pthread_key_t>(key); | |
491 return pthread_getspecific(pthread_key); | |
492 } | |
493 | |
494 | |
495 void Thread::SetThreadLocal(LocalStorageKey key, void* value) { | |
496 pthread_key_t pthread_key = static_cast<pthread_key_t>(key); | |
497 pthread_setspecific(pthread_key, value); | |
498 } | |
499 | |
500 | |
501 class SolarisSemaphore : public Semaphore { | 412 class SolarisSemaphore : public Semaphore { |
502 public: | 413 public: |
503 explicit SolarisSemaphore(int count) { sem_init(&sem_, 0, count); } | 414 explicit SolarisSemaphore(int count) { sem_init(&sem_, 0, count); } |
504 virtual ~SolarisSemaphore() { sem_destroy(&sem_); } | 415 virtual ~SolarisSemaphore() { sem_destroy(&sem_); } |
505 | 416 |
506 virtual void Wait(); | 417 virtual void Wait(); |
507 virtual bool Wait(int timeout); | 418 virtual bool Wait(int timeout); |
508 virtual void Signal() { sem_post(&sem_); } | 419 virtual void Signal() { sem_post(&sem_); } |
509 private: | 420 private: |
510 sem_t sem_; | 421 sem_t sem_; |
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587 limit_mutex = CreateMutex(); | 498 limit_mutex = CreateMutex(); |
588 } | 499 } |
589 | 500 |
590 | 501 |
591 void OS::TearDown() { | 502 void OS::TearDown() { |
592 delete limit_mutex; | 503 delete limit_mutex; |
593 } | 504 } |
594 | 505 |
595 | 506 |
596 } } // namespace v8::internal | 507 } } // namespace v8::internal |
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