v8/test/cctest/test-libplatform.h

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// 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.
#ifndef TEST_LIBPLATFORM_H_
#define TEST_LIBPLATFORM_H_
#include "v8.h"
#include "cctest.h"
using namespace v8::internal;
class TaskCounter {
public:
TaskCounter() : counter_(0) {}
~TaskCounter() { CHECK_EQ(0, counter_); }
int GetCount() const {
LockGuard<Mutex> guard(&lock_);
return counter_;
}
void Inc() {
LockGuard<Mutex> guard(&lock_);
++counter_;
}
void Dec() {
LockGuard<Mutex> guard(&lock_);
--counter_;
}
private:
mutable Mutex lock_;
int counter_;
DISALLOW_COPY_AND_ASSIGN(TaskCounter);
};
class TestTask : public v8::Task {
public:
TestTask(TaskCounter* task_counter, bool expected_to_run)
: task_counter_(task_counter),
expected_to_run_(expected_to_run),
executed_(false) {
task_counter_->Inc();
}
explicit TestTask(TaskCounter* task_counter)
: task_counter_(task_counter), expected_to_run_(false), executed_(false) {
task_counter_->Inc();
}
virtual ~TestTask() {
CHECK_EQ(expected_to_run_, executed_);
task_counter_->Dec();
}
// v8::Task implementation.
virtual void Run() V8_OVERRIDE { executed_ = true; }
private:
TaskCounter* task_counter_;
bool expected_to_run_;
bool executed_;
DISALLOW_COPY_AND_ASSIGN(TestTask);
};
class TestWorkerThread : public Thread {
public:
explicit TestWorkerThread(v8::Task* task)
: Thread("libplatform TestWorkerThread"), semaphore_(0), task_(task) {}
virtual ~TestWorkerThread() {}
void Signal() { semaphore_.Signal(); }
// Thread implementation.
virtual void Run() V8_OVERRIDE {
semaphore_.Wait();
if (task_) {
task_->Run();
delete task_;
}
}
private:
Semaphore semaphore_;
v8::Task* task_;
DISALLOW_COPY_AND_ASSIGN(TestWorkerThread);
};
#endif // TEST_LIBPLATFORM_H_