koda@google.com
c7e9e048ed
It's a collection of static utility methods for primitive operations on OS threads. Make room in the namespace for upcoming class that will represent all the complex state of a VM thread. Review URL: https://codereview.chromium.org//796063006 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@42895 260f80e4-7a28-3924-810f-c04153c831b5
75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef VM_LOCKERS_H_
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#define VM_LOCKERS_H_
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#include "platform/assert.h"
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#include "vm/allocation.h"
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#include "vm/globals.h"
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#include "vm/isolate.h"
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#include "vm/os_thread.h"
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namespace dart {
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class MutexLocker : public ValueObject {
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public:
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explicit MutexLocker(Mutex* mutex) : mutex_(mutex) {
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ASSERT(mutex != NULL);
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// TODO(iposva): Consider adding a no GC scope here.
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mutex_->Lock();
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}
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virtual ~MutexLocker() {
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mutex_->Unlock();
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// TODO(iposva): Consider decrementing the no GC scope here.
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}
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private:
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Mutex* const mutex_;
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DISALLOW_COPY_AND_ASSIGN(MutexLocker);
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};
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class MonitorLocker : public ValueObject {
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public:
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explicit MonitorLocker(Monitor* monitor) : monitor_(monitor) {
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ASSERT(monitor != NULL);
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// TODO(iposva): Consider adding a no GC scope here.
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monitor_->Enter();
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}
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virtual ~MonitorLocker() {
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monitor_->Exit();
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// TODO(iposva): Consider decrementing the no GC scope here.
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}
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Monitor::WaitResult Wait(int64_t millis = Monitor::kNoTimeout) {
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return monitor_->Wait(millis);
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}
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Monitor::WaitResult WaitMicros(int64_t micros = Monitor::kNoTimeout) {
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return monitor_->WaitMicros(micros);
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}
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void Notify() {
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monitor_->Notify();
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}
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void NotifyAll() {
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monitor_->NotifyAll();
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}
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private:
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Monitor* const monitor_;
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DISALLOW_COPY_AND_ASSIGN(MonitorLocker);
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};
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} // namespace dart
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#endif // VM_LOCKERS_H_
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