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NamedMutexTest.cpp

//
// NamedMutexTest.cpp
//
// $Id: //poco/1.2/Foundation/testsuite/src/NamedMutexTest.cpp#1 $
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#include "NamedMutexTest.h"
#include "CppUnit/TestCaller.h"
#include "CppUnit/TestSuite.h"
#include "Poco/NamedMutex.h"
#include "Poco/Thread.h"
#include "Poco/Runnable.h"
#include "Poco/Timestamp.h"


using Poco::NamedMutex;
using Poco::Thread;
using Poco::Runnable;
using Poco::Timestamp;


static NamedMutex testMutex("TestMutex");


namespace
{
      class TestLock: public Runnable
      {
      public:
            void run()
            {
            
                  testMutex.lock();
                  _timestamp.update();
                  testMutex.unlock();
            }

            const Timestamp& timestamp() const
            {
                  return _timestamp;
            }

      private:
            Timestamp _timestamp;
      };

      class TestTryLock: public Runnable
      {
      public:
            TestTryLock(): _locked(false)
            {
            }
            
            void run()
            {
                  if (testMutex.tryLock())
                  {
                        _locked = true;
                        testMutex.unlock();
                  }
            }

            bool locked() const
            {
                  return _locked;
            }

      private:
            bool _locked;
      };
}


NamedMutexTest::NamedMutexTest(const std::string& name): CppUnit::TestCase(name)
{
}


NamedMutexTest::~NamedMutexTest()
{
}


void NamedMutexTest::testLock()
{
      testMutex.lock();
      Thread thr;
      TestLock tl;
      thr.start(tl);
      Timestamp now;
      Thread::sleep(2000);
      testMutex.unlock();
      thr.join();
      assert (tl.timestamp() > now);
}


void NamedMutexTest::testTryLock()
{
      Thread thr1;
      TestTryLock ttl1;
      thr1.start(ttl1);
      thr1.join();
      assert (ttl1.locked());
      
      testMutex.lock();
      Thread thr2;
      TestTryLock ttl2;
      thr2.start(ttl2);
      thr2.join();
      testMutex.unlock();
      assert (!ttl2.locked());
}


void NamedMutexTest::setUp()
{
}


void NamedMutexTest::tearDown()
{
}


CppUnit::Test* NamedMutexTest::suite()
{
      CppUnit::TestSuite* pSuite = new CppUnit::TestSuite("NamedMutexTest");

      CppUnit_addTest(pSuite, NamedMutexTest, testLock);
      CppUnit_addTest(pSuite, NamedMutexTest, testTryLock);

      return pSuite;
}

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