gecko-dev/xpcom/tests/gtest/TestTaskQueue.cpp

87 строки
2.8 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gtest/gtest.h"
#include "mozilla/SharedThreadPool.h"
#include "mozilla/TaskQueue.h"
#include "mozilla/Unused.h"
#include "VideoUtils.h"
namespace TestTaskQueue {
using namespace mozilla;
TEST(TaskQueue, EventOrder)
{
RefPtr<TaskQueue> tq1 =
new TaskQueue(GetMediaThreadPool(MediaThreadType::PLAYBACK), true);
RefPtr<TaskQueue> tq2 =
new TaskQueue(GetMediaThreadPool(MediaThreadType::PLAYBACK), true);
RefPtr<TaskQueue> tq3 =
new TaskQueue(GetMediaThreadPool(MediaThreadType::PLAYBACK), true);
bool errored = false;
int counter = 0;
int sync = 0;
Monitor monitor("TaskQueue::EventOrder::monitor");
// We expect task1 happens before task3.
for (int i = 0; i < 10000; ++i) {
Unused << tq1->Dispatch(
NS_NewRunnableFunction(
"TestTaskQueue::TaskQueue_EventOrder_Test::TestBody",
[&]() {
Unused << tq2->Dispatch(NS_NewRunnableFunction(
"TestTaskQueue::TaskQueue_EventOrder_Test::TestBody",
[]() { // task0
}));
Unused << tq3->Dispatch(NS_NewRunnableFunction(
"TestTaskQueue::TaskQueue_EventOrder_Test::TestBody",
[&]() { // task1
EXPECT_EQ(1, ++counter);
errored = counter != 1;
MonitorAutoLock mon(monitor);
++sync;
mon.Notify();
}));
Unused << tq2->Dispatch(NS_NewRunnableFunction(
"TestTaskQueue::TaskQueue_EventOrder_Test::TestBody",
[&]() { // task2
Unused << tq3->Dispatch(NS_NewRunnableFunction(
"TestTaskQueue::TaskQueue_EventOrder_Test::TestBody",
[&]() { // task3
EXPECT_EQ(0, --counter);
errored = counter != 0;
MonitorAutoLock mon(monitor);
++sync;
mon.Notify();
}));
}));
}),
AbstractThread::TailDispatch);
// Ensure task1 and task3 are done before next loop.
MonitorAutoLock mon(monitor);
while (sync != 2) {
mon.Wait();
}
sync = 0;
if (errored) {
break;
}
}
tq1->BeginShutdown();
tq1->AwaitShutdownAndIdle();
tq2->BeginShutdown();
tq2->AwaitShutdownAndIdle();
tq3->BeginShutdown();
tq3->AwaitShutdownAndIdle();
}
} // namespace TestTaskQueue