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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
#include <IceUtil/IceUtil.h>
#include <IceUtil/CountDownLatch.h>
#include <CountDownLatchTest.h>
#include <TestHelper.h>
using namespace std;
using namespace IceUtil;
using namespace IceUtilInternal;
static const string testName("countDownLatch");
static const int magic = 0xbeef;
class CountDownLatchTestThread : public Thread
{
public:
CountDownLatchTestThread(CountDownLatch& latch, int& val, bool takeOne) :
_latch(latch),
_val(val),
_takeOne(takeOne)
{
}
virtual void run()
{
if(_takeOne)
{
_latch.countDown();
}
if(_latch.getCount() == 0)
{
test(_val == magic);
}
_latch.await();
test(_latch.getCount() == 0);
test(_val == magic);
}
private:
CountDownLatch& _latch;
int& _val;
bool _takeOne;
};
CountDownLatchTest::CountDownLatchTest() :
TestBase(testName)
{
}
void
CountDownLatchTest::run()
{
const int fullCount = 11;
int val = 0xabcd;
CountDownLatch latch(fullCount);
test(latch.getCount() == fullCount);
const int wave1Count = 6;
int i = 0;
ThreadPtr t1[wave1Count];
for(i = 0; i < wave1Count; i++)
{
t1[i] = new CountDownLatchTestThread(latch, val, false);
t1[i]->start();
}
//
// Sleep a little bit, and check count
//
ThreadControl::sleep(Time::seconds(1));
test(latch.getCount() == fullCount);
//
// Let's count down all except 1
//
ThreadPtr t2[fullCount - 1];
for(i = 0; i < fullCount - 1; i++)
{
t2[i] = new CountDownLatchTestThread(latch, val, true);
t2[i]->start();
}
//
// Sleep until count == 1
//
do
{
ThreadControl::sleep(Time::milliSeconds(100));
for(i = 0; i < wave1Count; i++)
{
test(t1[i]->isAlive());
}
for(i = 0; i < fullCount - 1; i++)
{
test(t2[i]->isAlive());
}
} while(latch.getCount() > 1);
//
// Set val and release last count
//
val = magic;
latch.countDown();
test(latch.getCount() == 0);
//
// Join them all
//
for(i = 0; i < wave1Count; i++)
{
t1[i]->getThreadControl().join();
}
for(i = 0; i < fullCount - 1; i++)
{
t2[i]->getThreadControl().join();
}
test(latch.getCount() == 0);
const int wave2Count = 4;
ThreadPtr t3[wave2Count];
for(i = 0; i < wave2Count; i++)
{
t3[i] = new CountDownLatchTestThread(latch, val, true);
t3[i]->start();
}
test(latch.getCount() == 0);
for(i = 0; i < wave2Count; i++)
{
t3[i]->getThreadControl().join();
}
test(latch.getCount() == 0);
}
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