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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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425 bool ThreadHandle::IsSelf() const { | 425 bool ThreadHandle::IsSelf() const { |
426 return pthread_equal(data_->thread_, pthread_self()); | 426 return pthread_equal(data_->thread_, pthread_self()); |
427 } | 427 } |
428 | 428 |
429 | 429 |
430 bool ThreadHandle::IsValid() const { | 430 bool ThreadHandle::IsValid() const { |
431 return data_->thread_ != kNoThread; | 431 return data_->thread_ != kNoThread; |
432 } | 432 } |
433 | 433 |
434 | 434 |
435 Thread::Thread(Isolate* isolate) | 435 Thread::Thread(Isolate* isolate, const Options& options) |
436 : ThreadHandle(ThreadHandle::INVALID), | 436 : ThreadHandle(ThreadHandle::INVALID), |
437 isolate_(isolate) { | 437 isolate_(isolate), |
438 set_name("v8:<unknown>"); | 438 stack_size_(options.stack_size) { |
| 439 set_name(options.name); |
439 } | 440 } |
440 | 441 |
441 | 442 |
442 Thread::Thread(Isolate* isolate, const char* name) | 443 Thread::Thread(Isolate* isolate, const char* name) |
443 : ThreadHandle(ThreadHandle::INVALID), | 444 : ThreadHandle(ThreadHandle::INVALID), |
444 isolate_(isolate) { | 445 isolate_(isolate), |
| 446 stack_size_(0) { |
445 set_name(name); | 447 set_name(name); |
446 } | 448 } |
447 | 449 |
448 | 450 |
449 Thread::~Thread() { | 451 Thread::~Thread() { |
450 } | 452 } |
451 | 453 |
452 | 454 |
453 | |
454 static void SetThreadName(const char* name) { | 455 static void SetThreadName(const char* name) { |
455 // pthread_setname_np is only available in 10.6 or later, so test | 456 // pthread_setname_np is only available in 10.6 or later, so test |
456 // for it at runtime. | 457 // for it at runtime. |
457 int (*dynamic_pthread_setname_np)(const char*); | 458 int (*dynamic_pthread_setname_np)(const char*); |
458 *reinterpret_cast<void**>(&dynamic_pthread_setname_np) = | 459 *reinterpret_cast<void**>(&dynamic_pthread_setname_np) = |
459 dlsym(RTLD_DEFAULT, "pthread_setname_np"); | 460 dlsym(RTLD_DEFAULT, "pthread_setname_np"); |
460 if (!dynamic_pthread_setname_np) | 461 if (!dynamic_pthread_setname_np) |
461 return; | 462 return; |
462 | 463 |
463 // Mac OS X does not expose the length limit of the name, so hardcode it. | 464 // Mac OS X does not expose the length limit of the name, so hardcode it. |
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482 } | 483 } |
483 | 484 |
484 | 485 |
485 void Thread::set_name(const char* name) { | 486 void Thread::set_name(const char* name) { |
486 strncpy(name_, name, sizeof(name_)); | 487 strncpy(name_, name, sizeof(name_)); |
487 name_[sizeof(name_) - 1] = '\0'; | 488 name_[sizeof(name_) - 1] = '\0'; |
488 } | 489 } |
489 | 490 |
490 | 491 |
491 void Thread::Start() { | 492 void Thread::Start() { |
492 pthread_create(&thread_handle_data()->thread_, NULL, ThreadEntry, this); | 493 pthread_attr_t* attr_ptr = NULL; |
| 494 pthread_attr_t attr; |
| 495 if (stack_size_ > 0) { |
| 496 pthread_attr_init(&attr); |
| 497 pthread_attr_setstacksize(&attr, static_cast<size_t>(stack_size_)); |
| 498 attr_ptr = &attr; |
| 499 } |
| 500 pthread_create(&thread_handle_data()->thread_, attr_ptr, ThreadEntry, this); |
| 501 ASSERT(IsValid()); |
493 } | 502 } |
494 | 503 |
495 | 504 |
496 void Thread::Join() { | 505 void Thread::Join() { |
497 pthread_join(thread_handle_data()->thread_, NULL); | 506 pthread_join(thread_handle_data()->thread_, NULL); |
498 } | 507 } |
499 | 508 |
500 | 509 |
501 Thread::LocalStorageKey Thread::CreateThreadLocalKey() { | 510 Thread::LocalStorageKey Thread::CreateThreadLocalKey() { |
502 pthread_key_t key; | 511 pthread_key_t key; |
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619 | 628 |
620 private: | 629 private: |
621 // Note: for profiled_thread_ Mach primitives are used instead of PThread's | 630 // Note: for profiled_thread_ Mach primitives are used instead of PThread's |
622 // because the latter doesn't provide thread manipulation primitives required. | 631 // because the latter doesn't provide thread manipulation primitives required. |
623 // For details, consult "Mac OS X Internals" book, Section 7.3. | 632 // For details, consult "Mac OS X Internals" book, Section 7.3. |
624 thread_act_t profiled_thread_; | 633 thread_act_t profiled_thread_; |
625 }; | 634 }; |
626 | 635 |
627 class SamplerThread : public Thread { | 636 class SamplerThread : public Thread { |
628 public: | 637 public: |
629 explicit SamplerThread(int interval) : Thread(NULL), interval_(interval) {} | 638 explicit SamplerThread(int interval) |
| 639 : Thread(NULL, "SamplerThread"), |
| 640 interval_(interval) {} |
630 | 641 |
631 static void AddActiveSampler(Sampler* sampler) { | 642 static void AddActiveSampler(Sampler* sampler) { |
632 ScopedLock lock(mutex_); | 643 ScopedLock lock(mutex_); |
633 SamplerRegistry::AddActiveSampler(sampler); | 644 SamplerRegistry::AddActiveSampler(sampler); |
634 if (instance_ == NULL) { | 645 if (instance_ == NULL) { |
635 instance_ = new SamplerThread(sampler->interval()); | 646 instance_ = new SamplerThread(sampler->interval()); |
636 instance_->Start(); | 647 instance_->Start(); |
637 } else { | 648 } else { |
638 ASSERT(instance_->interval_ == sampler->interval()); | 649 ASSERT(instance_->interval_ == sampler->interval()); |
639 } | 650 } |
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776 | 787 |
777 void Sampler::Stop() { | 788 void Sampler::Stop() { |
778 ASSERT(IsActive()); | 789 ASSERT(IsActive()); |
779 SamplerThread::RemoveActiveSampler(this); | 790 SamplerThread::RemoveActiveSampler(this); |
780 SetActive(false); | 791 SetActive(false); |
781 } | 792 } |
782 | 793 |
783 #endif // ENABLE_LOGGING_AND_PROFILING | 794 #endif // ENABLE_LOGGING_AND_PROFILING |
784 | 795 |
785 } } // namespace v8::internal | 796 } } // namespace v8::internal |
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