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shibing624
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// The flag is not set; create event.
Semaphore localSemaphore;
event = flag->testAndSwap(0,&localSemaphore);
if (0 == event ) {
// The event handle has been stored in the flag; wait on it now.
localSemaphore.wait();
return; // RETURN
}
}
ASSERT(event == dummySemaphorePtr);
}
void *testCase4_fn3(int threadNum, const MyTask& task)
{
DataCase4 *data = reinterpret_cast<DataCase4 *> (task.arg());
for (int i=0; i < 1000; ++i) {
setFlag(&data->d_event1);
waitOnFlag(&data->d_event2, 100);
ASSERT (data->d_event2 != 0);
data->d_event2 = 0;
ASSERT (data->d_event2 == 0);
}
return 0;
}
void *testCase4_fn4(int threadNum, const MyTask& task)
{
DataCase4 *data = reinterpret_cast<DataCase4 *> (task.arg());
for (int i=0; i < 1000; ++i) {
waitOnFlag(&data->d_event1, 100);
ASSERT (data->d_event1 != 0);
data->d_event1 = 0;
ASSERT (data->d_event1 == 0);
setFlag(&data->d_event2);
}
return 0;
}
void *testCase4_fn1(int threadNum, const MyTask& task)
{
DataCase4 *data = reinterpret_cast<DataCase4 *> (task.arg());
for (int i=0; i < 1000; i++) {
ASSERT (data->d_flagEnd == i);
ASSERT (data->d_flagStart == i);
data->d_event1.swap(0);
data->d_event2.swap(0);
// open gate for the second thread
ASSERT(data->d_flagStart.testAndSwap(i, i+1) == i);
ASSERT(data->d_flagStart == (i+1));
setFlag(&data->d_event1);
waitOnFlag(&data->d_event2, 100);
// barrier wait till other thread set next value
while ((i+1) != data->d_flagEnd) {
bslmt::ThreadUtil::yield();
}
}
return 0;
}
void *testCase4_fn2(int threadNum, const MyTask& task)
{
DataCase4 *data = reinterpret_cast<DataCase4 *> (task.arg());
for (int i=0; i < 1000; i++) {
ASSERT (data->d_flagEnd == i);
// barrier wait till other thread set next value
while ((i+1) != data->d_flagStart) {
bslmt::ThreadUtil::yield();
}
setFlag(&data->d_event2);
waitOnFlag(&data->d_event1, 100);
// make sure the first thread is waiting for us
ASSERT(data->d_flagStart == (i+1));
// open gate for the first thread
ASSERT(data->d_flagEnd.testAndSwap(i, i+1) == i);