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