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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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147 | 147 |
148 | 148 |
149 void* OS::Allocate(const size_t requested, | 149 void* OS::Allocate(const size_t requested, |
150 size_t* allocated, | 150 size_t* allocated, |
151 bool executable) { | 151 bool executable) { |
152 const size_t msize = RoundUp(requested, getpagesize()); | 152 const size_t msize = RoundUp(requested, getpagesize()); |
153 int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0); | 153 int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0); |
154 void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANON, -1, 0); | 154 void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANON, -1, 0); |
155 | 155 |
156 if (mbase == MAP_FAILED) { | 156 if (mbase == MAP_FAILED) { |
157 LOG(StringEvent("OS::Allocate", "mmap failed")); | 157 LOG(ISOLATE, StringEvent("OS::Allocate", "mmap failed")); |
158 return NULL; | 158 return NULL; |
159 } | 159 } |
160 *allocated = msize; | 160 *allocated = msize; |
161 UpdateAllocatedSpaceLimits(mbase, msize); | 161 UpdateAllocatedSpaceLimits(mbase, msize); |
162 return mbase; | 162 return mbase; |
163 } | 163 } |
164 | 164 |
165 | 165 |
166 void OS::Free(void* buf, const size_t length) { | 166 void OS::Free(void* buf, const size_t length) { |
167 int result = munmap(buf, length); | 167 int result = munmap(buf, length); |
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393 bool ThreadHandle::IsSelf() const { | 393 bool ThreadHandle::IsSelf() const { |
394 return pthread_equal(data_->thread_, pthread_self()); | 394 return pthread_equal(data_->thread_, pthread_self()); |
395 } | 395 } |
396 | 396 |
397 | 397 |
398 bool ThreadHandle::IsValid() const { | 398 bool ThreadHandle::IsValid() const { |
399 return data_->thread_ != kNoThread; | 399 return data_->thread_ != kNoThread; |
400 } | 400 } |
401 | 401 |
402 | 402 |
403 Thread::Thread() : ThreadHandle(ThreadHandle::INVALID) { | 403 Thread::Thread(Isolate* isolate) |
| 404 : ThreadHandle(ThreadHandle::INVALID), |
| 405 isolate_(isolate) { |
404 set_name("v8:<unknown>"); | 406 set_name("v8:<unknown>"); |
405 } | 407 } |
406 | 408 |
407 | 409 |
408 Thread::Thread(const char* name) : ThreadHandle(ThreadHandle::INVALID) { | 410 Thread::Thread(Isolate* isolate, const char* name) |
| 411 : ThreadHandle(ThreadHandle::INVALID), |
| 412 isolate_(isolate) { |
409 set_name(name); | 413 set_name(name); |
410 } | 414 } |
411 | 415 |
412 | 416 |
413 Thread::~Thread() { | 417 Thread::~Thread() { |
414 } | 418 } |
415 | 419 |
416 | 420 |
417 static void* ThreadEntry(void* arg) { | 421 static void* ThreadEntry(void* arg) { |
418 Thread* thread = reinterpret_cast<Thread*>(arg); | 422 Thread* thread = reinterpret_cast<Thread*>(arg); |
419 // This is also initialized by the first argument to pthread_create() but we | 423 // This is also initialized by the first argument to pthread_create() but we |
420 // don't know which thread will run first (the original thread or the new | 424 // don't know which thread will run first (the original thread or the new |
421 // one) so we initialize it here too. | 425 // one) so we initialize it here too. |
422 thread->thread_handle_data()->thread_ = pthread_self(); | 426 thread->thread_handle_data()->thread_ = pthread_self(); |
423 ASSERT(thread->IsValid()); | 427 ASSERT(thread->IsValid()); |
| 428 Thread::SetThreadLocal(Isolate::isolate_key(), thread->isolate()); |
424 thread->Run(); | 429 thread->Run(); |
425 return NULL; | 430 return NULL; |
426 } | 431 } |
427 | 432 |
428 | 433 |
429 void Thread::set_name(const char* name) { | 434 void Thread::set_name(const char* name) { |
430 strncpy(name_, name, sizeof(name_)); | 435 strncpy(name_, name, sizeof(name_)); |
431 name_[sizeof(name_) - 1] = '\0'; | 436 name_[sizeof(name_) - 1] = '\0'; |
432 } | 437 } |
433 | 438 |
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591 PlatformData() { | 596 PlatformData() { |
592 signal_handler_installed_ = false; | 597 signal_handler_installed_ = false; |
593 } | 598 } |
594 | 599 |
595 bool signal_handler_installed_; | 600 bool signal_handler_installed_; |
596 struct sigaction old_signal_handler_; | 601 struct sigaction old_signal_handler_; |
597 struct itimerval old_timer_value_; | 602 struct itimerval old_timer_value_; |
598 }; | 603 }; |
599 | 604 |
600 | 605 |
601 Sampler::Sampler(int interval) | 606 Sampler::Sampler(Isolate* isolate, int interval) |
602 : interval_(interval), | 607 : isolate_(isolate), |
| 608 interval_(interval), |
603 profiling_(false), | 609 profiling_(false), |
604 active_(false), | 610 active_(false), |
605 samples_taken_(0) { | 611 samples_taken_(0) { |
606 data_ = new PlatformData(); | 612 data_ = new PlatformData(); |
607 } | 613 } |
608 | 614 |
609 | 615 |
610 Sampler::~Sampler() { | 616 Sampler::~Sampler() { |
611 delete data_; | 617 delete data_; |
612 } | 618 } |
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648 } | 654 } |
649 | 655 |
650 // This sampler is no longer the active sampler. | 656 // This sampler is no longer the active sampler. |
651 active_sampler_ = NULL; | 657 active_sampler_ = NULL; |
652 active_ = false; | 658 active_ = false; |
653 } | 659 } |
654 | 660 |
655 #endif // ENABLE_LOGGING_AND_PROFILING | 661 #endif // ENABLE_LOGGING_AND_PROFILING |
656 | 662 |
657 } } // namespace v8::internal | 663 } } // namespace v8::internal |
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