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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
#include <IceUtil/IceUtil.h>
#include <MutexTest.h>
#include <TestHelper.h>
using namespace std;
using namespace IceUtil;
static const string mutexTestName("mutex");
class MutexTestThread : public Thread
{
public:
MutexTestThread(Mutex& m) :
_mutex(m),
_tryLock(false)
{
}
virtual void run()
{
Mutex::TryLock tlock(_mutex);
test(!tlock.acquired());
{
Mutex::Lock lock(_tryLockMutex);
_tryLock = true;
}
_tryLockCond.signal();
Mutex::Lock lock(_mutex);
}
void
waitTryLock()
{
Mutex::Lock lock(_tryLockMutex);
while(!_tryLock)
{
_tryLockCond.wait(lock);
}
}
private:
Mutex& _mutex;
bool _tryLock;
//
// Use native Condition variable here, not Monitor.
//
Cond _tryLockCond;
Mutex _tryLockMutex;
};
typedef Handle<MutexTestThread> MutexTestThreadPtr;
MutexTest::MutexTest() :
TestBase(mutexTestName)
{
}
void
MutexTest::run()
{
Mutex mutex;
MutexTestThreadPtr t;
ThreadControl control;
{
Mutex::Lock lock(mutex);
// LockT testing:
//
test(lock.acquired());
try
{
lock.acquire();
test(false);
}
catch(const ThreadLockedException&)
{
// Expected
}
try
{
lock.tryAcquire();
test(false);
}
catch(const ThreadLockedException&)
{
// Expected
}
test(lock.acquired());
lock.release();
test(!lock.acquired());
try
{
lock.release();
test(false);
}
catch(const ThreadLockedException&)
{
// Expected
}
Mutex::TryLock lock2(mutex);
try
{
test(lock.tryAcquire() == false);
}
catch(const ThreadLockedException&)
{
}
lock2.release();
test(lock.tryAcquire() == true);
test(lock.acquired());
// Deadlock testing
//
#if !defined(NDEBUG) && !defined(_WIN32)
try
{
Mutex::Lock lock3(mutex);
test(false);
}
catch(const ThreadLockedException&)
{
// Expected
}
#endif
// TEST: Start thread, try to acquire the mutex.
t = new MutexTestThread(mutex);
control = t->start();
// TEST: Wait until the tryLock has been tested.
t->waitTryLock();
}
//
// TEST: Once the mutex has been released, the thread should
// acquire the mutex and then terminate.
//
control.join();
}
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