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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "test/MtTestUtils.h"
#include "utils/Job.h"
#include "utils/JobManager.h"
#include "utils/XTimeUtils.h"
#include <atomic>
#include <gtest/gtest.h>
using namespace ConditionPoll;
struct Flags
{
std::atomic<bool> lingerAtWork{true};
std::atomic<bool> started{false};
std::atomic<bool> finished{false};
std::atomic<bool> wasCanceled{false};
};
class DummyJob : public CJob
{
Flags* m_flags;
public:
inline DummyJob(Flags* flags) : m_flags(flags)
{
}
bool DoWork() override
{
m_flags->started = true;
while (m_flags->lingerAtWork)
std::this_thread::yield();
if (ShouldCancel(0,0))
m_flags->wasCanceled = true;
m_flags->finished = true;
return true;
}
};
class ReallyDumbJob : public CJob
{
Flags* m_flags;
public:
inline ReallyDumbJob(Flags* flags) : m_flags(flags) {}
bool DoWork() override
{
m_flags->finished = true;
return true;
}
};
class TestJobManager : public testing::Test
{
protected:
TestJobManager() = default;
~TestJobManager() override
{
/* Always cancel jobs test completion */
CJobManager::GetInstance().CancelJobs();
CJobManager::GetInstance().Restart();
}
};
TEST_F(TestJobManager, AddJob)
{
Flags* flags = new Flags();
ReallyDumbJob* job = new ReallyDumbJob(flags);
CJobManager::GetInstance().AddJob(job, NULL);
ASSERT_TRUE(poll([flags]() -> bool { return flags->finished; }));
delete flags;
}
TEST_F(TestJobManager, CancelJob)
{
unsigned int id;
Flags* flags = new Flags();
DummyJob* job = new DummyJob(flags);
id = CJobManager::GetInstance().AddJob(job, NULL);
// wait for the worker thread to be entered
ASSERT_TRUE(poll([flags]() -> bool { return flags->started; }));
// cancel the job
CJobManager::GetInstance().CancelJob(id);
// let the worker thread continue
flags->lingerAtWork = false;
// make sure the job finished.
ASSERT_TRUE(poll([flags]() -> bool { return flags->finished; }));
// ... and that it was canceled.
EXPECT_TRUE(flags->wasCanceled);
delete flags;
}
namespace
{
struct JobControlPackage
{
JobControlPackage()
{
// We're not ready to wait yet
jobCreatedMutex.lock();
}
~JobControlPackage()
{
jobCreatedMutex.unlock();
}
bool ready = false;
XbmcThreads::ConditionVariable jobCreatedCond;
CCriticalSection jobCreatedMutex;
};
class BroadcastingJob :
public CJob
{
public:
BroadcastingJob(JobControlPackage &package) :
m_package(package),
m_finish(false)
{
}
void FinishAndStopBlocking()
{
CSingleLock lock(m_blockMutex);
m_finish = true;
m_block.notifyAll();
}
const char * GetType() const override
{
return "BroadcastingJob";
}
bool DoWork() override
{
{
CSingleLock lock(m_package.jobCreatedMutex);
m_package.ready = true;
m_package.jobCreatedCond.notifyAll();
}
CSingleLock blockLock(m_blockMutex);
// Block until we're told to go away
while (!m_finish)
m_block.wait(m_blockMutex);
return true;
}
private:
JobControlPackage &m_package;
XbmcThreads::ConditionVariable m_block;
CCriticalSection m_blockMutex;
bool m_finish;
};
BroadcastingJob *
WaitForJobToStartProcessing(CJob::PRIORITY priority, JobControlPackage &package)
{
BroadcastingJob* job = new BroadcastingJob(package);
CJobManager::GetInstance().AddJob(job, NULL, priority);
// We're now ready to wait, wait and then unblock once ready
while (!package.ready)
package.jobCreatedCond.wait(package.jobCreatedMutex);
return job;
}
}
TEST_F(TestJobManager, PauseLowPriorityJob)
{
JobControlPackage package;
BroadcastingJob *job (WaitForJobToStartProcessing(CJob::PRIORITY_LOW_PAUSABLE, package));
EXPECT_TRUE(CJobManager::GetInstance().IsProcessing(CJob::PRIORITY_LOW_PAUSABLE));
CJobManager::GetInstance().PauseJobs();
EXPECT_FALSE(CJobManager::GetInstance().IsProcessing(CJob::PRIORITY_LOW_PAUSABLE));
CJobManager::GetInstance().UnPauseJobs();
EXPECT_TRUE(CJobManager::GetInstance().IsProcessing(CJob::PRIORITY_LOW_PAUSABLE));
job->FinishAndStopBlocking();
}
TEST_F(TestJobManager, IsProcessing)
{
JobControlPackage package;
BroadcastingJob *job (WaitForJobToStartProcessing(CJob::PRIORITY_LOW_PAUSABLE, package));
EXPECT_EQ(0, CJobManager::GetInstance().IsProcessing(""));
job->FinishAndStopBlocking();
}
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