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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/threading/worker_pool.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/message_loop.h"
#include "base/task.h"
#include "base/test/test_timeouts.h"
#include "base/time.h"
#include "base/threading/thread_checker_impl.h"
#include "base/synchronization/waitable_event.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
typedef PlatformTest WorkerPoolTest;
namespace base {
namespace {
class PostTaskTestTask : public Task {
public:
explicit PostTaskTestTask(WaitableEvent* event) : event_(event) {
}
void Run() {
event_->Signal();
}
private:
WaitableEvent* event_;
};
class PostTaskAndReplyTester
: public base::RefCountedThreadSafe<PostTaskAndReplyTester> {
public:
PostTaskAndReplyTester() : finished_(false), test_event_(false, false) {
}
void RunTest() {
ASSERT_TRUE(thread_checker_.CalledOnValidThread());
WorkerPool::PostTaskAndReply(
FROM_HERE,
base::Bind(&PostTaskAndReplyTester::OnWorkerThread, this),
base::Bind(&PostTaskAndReplyTester::OnOriginalThread, this),
false);
test_event_.Wait();
}
void OnWorkerThread() {
// We're not on the original thread.
EXPECT_FALSE(thread_checker_.CalledOnValidThread());
test_event_.Signal();
}
void OnOriginalThread() {
EXPECT_TRUE(thread_checker_.CalledOnValidThread());
finished_ = true;
}
bool finished() const {
return finished_;
}
private:
bool finished_;
WaitableEvent test_event_;
// The Impl version performs its checks even in release builds.
ThreadCheckerImpl thread_checker_;
};
} // namespace
TEST_F(WorkerPoolTest, PostTask) {
WaitableEvent test_event(false, false);
WaitableEvent long_test_event(false, false);
WorkerPool::PostTask(FROM_HERE, new PostTaskTestTask(&test_event), false);
WorkerPool::PostTask(FROM_HERE, new PostTaskTestTask(&long_test_event), true);
test_event.Wait();
long_test_event.Wait();
}
TEST_F(WorkerPoolTest, PostTaskAndReply) {
MessageLoop message_loop;
scoped_refptr<PostTaskAndReplyTester> tester(new PostTaskAndReplyTester());
tester->RunTest();
const TimeDelta kMaxDuration =
TimeDelta::FromMilliseconds(TestTimeouts::tiny_timeout_ms());
TimeTicks start = TimeTicks::Now();
while (!tester->finished() && TimeTicks::Now() - start < kMaxDuration) {
MessageLoop::current()->RunAllPending();
}
EXPECT_TRUE(tester->finished());
}
} // namespace base
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