initial import

Foundation/testsuite/src/RWLockTest.cpp

@@ -0,0 +1,224 @@
+//
+// RWLockTest.cpp
+//
+// $Id: //poco/1.1.0/Foundation/testsuite/src/RWLockTest.cpp#2 $
+//
+// 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 "RWLockTest.h"
+#include "CppUnit/TestCaller.h"
+#include "CppUnit/TestSuite.h"
+#include "Foundation/RWLock.h"
+#include "Foundation/Thread.h"
+#include "Foundation/Runnable.h"
+
+
+using Foundation::RWLock;
+using Foundation::Thread;
+using Foundation::Runnable;
+
+
+class RWLockRunnable: public Runnable
+{
+public:
+	RWLockRunnable(RWLock& lock, volatile int& counter): _lock(lock), _counter(counter), _ok(true)
+	{
+	}
+	
+	void run()
+	{
+		int lastCount = 0;
+		for (int i = 0; i < 10000; ++i)
+		{
+			_lock.readLock();
+			lastCount = _counter;
+			for (int k = 0; k < 100; ++k)
+			{
+				if (_counter != lastCount) _ok = false;
+			}
+			_lock.unlock();
+			_lock.writeLock();
+			for (int k = 0; k < 100; ++k)
+				--_counter;
+			for (int k = 0; k < 100; ++k)
+				++_counter;
+			++_counter;
+			if (_counter <= lastCount) _ok = false;
+			_lock.unlock();
+		}
+	}
+	
+	bool ok() const
+	{
+		return _ok;
+	}
+	
+private:
+	RWLock& _lock;
+	volatile int& _counter;
+	bool _ok;
+};
+
+
+class RWTryLockRunnable: public Runnable
+{
+public:
+	RWTryLockRunnable(RWLock& lock, volatile int& counter): _lock(lock), _counter(counter), _ok(true)
+	{
+	}
+	
+	void run()
+	{
+		int lastCount = 0;
+		for (int i = 0; i < 10000; ++i)
+		{
+			while (!_lock.tryReadLock()) Thread::yield();
+			lastCount = _counter;
+			for (int k = 0; k < 100; ++k)
+			{
+				if (_counter != lastCount) _ok = false;
+			}
+			_lock.unlock();
+			while (!_lock.tryWriteLock()) Thread::yield();
+			for (int k = 0; k < 100; ++k)
+				--_counter;
+			for (int k = 0; k < 100; ++k)
+				++_counter;
+			++_counter;
+			if (_counter <= lastCount) _ok = false;
+			_lock.unlock();
+		}
+	}
+	
+	bool ok() const
+	{
+		return _ok;
+	}
+	
+private:
+	RWLock& _lock;
+	volatile int& _counter;
+	bool _ok;
+};
+
+
+RWLockTest::RWLockTest(const std::string& name): CppUnit::TestCase(name)
+{
+}
+
+
+RWLockTest::~RWLockTest()
+{
+}
+
+
+void RWLockTest::testLock()
+{
+	RWLock lock;
+	int counter = 0;
+	RWLockRunnable r1(lock, counter);
+	RWLockRunnable r2(lock, counter);
+	RWLockRunnable r3(lock, counter);
+	RWLockRunnable r4(lock, counter);
+	RWLockRunnable r5(lock, counter);
+	Thread t1;
+	Thread t2;
+	Thread t3;
+	Thread t4;
+	Thread t5;
+	t1.start(r1);
+	t2.start(r2);
+	t3.start(r3);
+	t4.start(r4);
+	t5.start(r5);
+	t1.join();
+	t2.join();
+	t3.join();
+	t4.join();
+	t5.join();
+	assert (counter == 50000);
+	assert (r1.ok());
+	assert (r2.ok());
+	assert (r3.ok());
+	assert (r4.ok());
+	assert (r5.ok());
+}
+
+
+void RWLockTest::testTryLock()
+{
+	RWLock lock;
+	int counter = 0;
+	RWTryLockRunnable r1(lock, counter);
+	RWTryLockRunnable r2(lock, counter);
+	RWTryLockRunnable r3(lock, counter);
+	RWTryLockRunnable r4(lock, counter);
+	RWTryLockRunnable r5(lock, counter);
+	Thread t1;
+	Thread t2;
+	Thread t3;
+	Thread t4;
+	Thread t5;
+	t1.start(r1);
+	t2.start(r2);
+	t3.start(r3);
+	t4.start(r4);
+	t5.start(r5);
+	t1.join();
+	t2.join();
+	t3.join();
+	t4.join();
+	t5.join();
+	assert (counter == 50000);
+	assert (r1.ok());
+	assert (r2.ok());
+	assert (r3.ok());
+	assert (r4.ok());
+	assert (r5.ok());
+}
+
+
+void RWLockTest::setUp()
+{
+}
+
+
+void RWLockTest::tearDown()
+{
+}
+
+
+CppUnit::Test* RWLockTest::suite()
+{
+	CppUnit::TestSuite* pSuite = new CppUnit::TestSuite("RWLockTest");
+
+	CppUnit_addTest(pSuite, RWLockTest, testLock);
+	CppUnit_addTest(pSuite, RWLockTest, testTryLock);
+
+	return pSuite;
+}