7fe9f3b05c
BUG= Review URL: https://codereview.chromium.org/12047044 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13569 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
// Copyright 2013 the V8 project authors. All rights reserved.
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following
|
|
// disclaimer in the documentation and/or other materials provided
|
|
// with the distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#include "marking-thread.h"
|
|
|
|
#include "v8.h"
|
|
|
|
#include "isolate.h"
|
|
#include "v8threads.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
|
|
MarkingThread::MarkingThread(Isolate* isolate)
|
|
: Thread("MarkingThread"),
|
|
isolate_(isolate),
|
|
heap_(isolate->heap()),
|
|
start_marking_semaphore_(OS::CreateSemaphore(0)),
|
|
end_marking_semaphore_(OS::CreateSemaphore(0)),
|
|
stop_semaphore_(OS::CreateSemaphore(0)) {
|
|
NoBarrier_Store(&stop_thread_, static_cast<AtomicWord>(false));
|
|
id_ = NoBarrier_AtomicIncrement(&id_counter_, 1);
|
|
}
|
|
|
|
|
|
Atomic32 MarkingThread::id_counter_ = -1;
|
|
|
|
|
|
void MarkingThread::Run() {
|
|
Isolate::SetIsolateThreadLocals(isolate_, NULL);
|
|
|
|
while (true) {
|
|
start_marking_semaphore_->Wait();
|
|
|
|
if (Acquire_Load(&stop_thread_)) {
|
|
stop_semaphore_->Signal();
|
|
return;
|
|
}
|
|
|
|
end_marking_semaphore_->Signal();
|
|
}
|
|
}
|
|
|
|
|
|
void MarkingThread::Stop() {
|
|
Release_Store(&stop_thread_, static_cast<AtomicWord>(true));
|
|
start_marking_semaphore_->Signal();
|
|
stop_semaphore_->Wait();
|
|
}
|
|
|
|
|
|
void MarkingThread::StartMarking() {
|
|
start_marking_semaphore_->Signal();
|
|
}
|
|
|
|
|
|
void MarkingThread::WaitForMarkingThread() {
|
|
end_marking_semaphore_->Wait();
|
|
}
|
|
|
|
} } // namespace v8::internal
|