void testStartAndStop()
{
MpFlowGraphBase* pFlowGraph = 0;
OsStatus res;
pFlowGraph = new MpFlowGraphBase(80, 8000);
CPPUNIT_ASSERT(!pFlowGraph->isStarted()); // verify the flow graph is not STARTED
CPPUNIT_ASSERT(MpFlowGraphBase::STOPPED == pFlowGraph->getState());
res = pFlowGraph->start(); // now start it
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = pFlowGraph->processNextFrame();
CPPUNIT_ASSERT((res == OS_SUCCESS) && pFlowGraph->isStarted());
CPPUNIT_ASSERT(MpFlowGraphBase::STARTED == pFlowGraph->getState());
res = pFlowGraph->stop(); // now stop it again
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = pFlowGraph->processNextFrame();
CPPUNIT_ASSERT((res == OS_SUCCESS) && !pFlowGraph->isStarted());
CPPUNIT_ASSERT(MpFlowGraphBase::STOPPED == pFlowGraph->getState());
delete pFlowGraph;
}
void testCreators()
{
MpFlowGraphBase* pFlowGraph = 0;
MpTestResource* pResource1 = 0;
MpTestResource* pResource2 = 0;
OsStatus res;
// verify that we can create and delete MpFlowGraphBase objects
pFlowGraph = new MpFlowGraphBase(80, 8000);
// verify that the initial state information is sensible
CPPUNIT_ASSERT(pFlowGraph->getState() == MpFlowGraphBase::STOPPED);
CPPUNIT_ASSERT(pFlowGraph->numLinks() == 0);
CPPUNIT_ASSERT(pFlowGraph->numFramesProcessed() == 0);
CPPUNIT_ASSERT(pFlowGraph->numResources() == 0);
CPPUNIT_ASSERT(!pFlowGraph->isStarted());
delete pFlowGraph;
// when we have a flow graph that contains resources and links,
// verify that destroying the flow graph also gets rid of the resources
// and links.
pFlowGraph = new MpFlowGraphBase(80, 8000);
pResource1 = new MpTestResource("test1", 1, 1, 1, 1);
pResource2 = new MpTestResource("test2", 1, 1, 1, 1);
res = pFlowGraph->addResource(*pResource1);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = pFlowGraph->addResource(*pResource2);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = pFlowGraph->addLink(*pResource1, 0, *pResource2, 0);
CPPUNIT_ASSERT(res == OS_SUCCESS);
delete pFlowGraph;
}
// Handles the WAIT_FOR_SIGNAL message.
// Performs the one-per-tick media processing as directed by the flow graph.
// Returns TRUE if the message was handled, otherwise FALSE.
UtlBoolean MpMediaTask::handleWaitForSignal(MpMediaTaskMsg* pMsg)
{
OsStatus res;
#ifdef TEST_TASK_LOAD
OsTime maxAllowedTime(mLimitUsecs*1000);
OsTime processingStartTime;
OsDateTime::getCurTime(processingStartTime);
#endif
// reset the handleMessage error count
// mHandleMsgErrs = 0;
mWaitForSignal = FALSE;
// When this message is received we know that:
// 1) We have received a frame start signal
// 2) All of the messages that had been queued for this task at the
// time the frame start signal occurred have been processed.
// Call processNextFrame() for each of the "started" flow graphs
UtlHashBagIterator itor(mManagedFlowGraphs);
UtlPtr<MpFlowGraphBase>* ptr = NULL;
MpFlowGraphBase* pFlowGraph = NULL;
#if FRAME_PROCESSING_THREADS > 0
// let worker threads process frames
int counter = 0;
while(ptr = (UtlPtr<MpFlowGraphBase>*)itor())
{
pFlowGraph = ptr->getValue();
assert(pFlowGraph);
if (pFlowGraph && pFlowGraph->isStarted())
{
m_processingThreads[counter]->addFlowgraphForProcessing(pFlowGraph);
counter = (counter + 1) % FRAME_PROCESSING_THREADS;
}
}
// process all frames in threads
for (int i = 0; i < FRAME_PROCESSING_THREADS; i++)
{
m_processingThreads[i]->processWork();
}
// now synchronize all threads - a barrier
for (int i = 0; i < FRAME_PROCESSING_THREADS; i++)
{
m_processingThreads[i]->waitUntilDone();
}
#else
// let MpMediaTask process all frames
while(ptr = (UtlPtr<MpFlowGraphBase>*)itor())
{
pFlowGraph = ptr->getValue();
assert(pFlowGraph);
if (pFlowGraph->isStarted())
{
res = pFlowGraph->processNextFrame();
assert(res == OS_SUCCESS);
}
}
#endif
assert(!mWaitForSignal);
mProcessedCnt++;
mWaitForSignal = TRUE;
if (nFrameStartMsgs > 0)
{
nFrameStartMsgs--;
}
#ifdef TEST_TASK_LOAD
OsTime processingStopTime;
OsDateTime::getCurTime(processingStopTime);
if (processingStopTime - processingStartTime > maxAllowedTime)
{
// signal overload to skip processing frames
m_bTaskOverloaded = TRUE;
}
else
{
// disable overload flag, we will process even big backlog of frame start signals
m_bTaskOverloaded = FALSE;
}
#endif
return TRUE;
}
void testStartAndStopFlowGraph()
{
MpFlowGraphBase* pFlowGraph = 0;
MpMediaTask* pMediaTask = 0;
OsStatus res;
// Test 1: Set the time limit to twice its original value
pMediaTask = MpMediaTask::getMediaTask(10);
pFlowGraph = new MpFlowGraphBase(30, 30);
pMediaTask->numHandledMsgErrs(); // clear count
// Test 1: Attempt to start a flow graph that is not being managed
//CPPUNIT_ASSERT_EQUAL(1, pMediaTask->numStartedFlowGraphs());
res = pMediaTask->startFlowGraph(*pFlowGraph);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = MpMediaTask::signalFrameStart(); // signal the media task and
CPPUNIT_ASSERT(res == OS_SUCCESS); // give it a chance to run
OsTask::delay(20);
// NOTE: Original test code had "1", not sure what's correct
CPPUNIT_ASSERT_EQUAL(1, pMediaTask->numHandledMsgErrs());
CPPUNIT_ASSERT_EQUAL(0, pMediaTask->numStartedFlowGraphs());
// Test 2: Start a flow graph that is managed
pMediaTask->numHandledMsgErrs(); // clear the count
res = pMediaTask->manageFlowGraph(*pFlowGraph);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = pMediaTask->startFlowGraph(*pFlowGraph);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = MpMediaTask::signalFrameStart(); // signal the media task and
CPPUNIT_ASSERT(res == OS_SUCCESS); // give it a chance to run
OsTask::delay(20);
CPPUNIT_ASSERT_EQUAL(0, pMediaTask->numHandledMsgErrs());
CPPUNIT_ASSERT_EQUAL(1, pMediaTask->numStartedFlowGraphs());
CPPUNIT_ASSERT(pFlowGraph->isStarted());
// Test 3: Attempt to start the same flow graph again
pMediaTask->numHandledMsgErrs(); // clear the count
res = pMediaTask->startFlowGraph(*pFlowGraph);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = MpMediaTask::signalFrameStart(); // signal the media task and
CPPUNIT_ASSERT(res == OS_SUCCESS); // give it a chance to run
OsTask::delay(20);
//CPPUNIT_ASSERT_EQUAL(0, pMediaTask->numHandledMsgErrs());
CPPUNIT_ASSERT_EQUAL(1, pMediaTask->numStartedFlowGraphs());
// Test 4: Stop the flow graph
pMediaTask->numHandledMsgErrs(); // clear the count
res = pMediaTask->stopFlowGraph(*pFlowGraph);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = MpMediaTask::signalFrameStart(); // signal the media task and
CPPUNIT_ASSERT(res == OS_SUCCESS); // give it a chance to run
OsTask::delay(20);
CPPUNIT_ASSERT_EQUAL(0, pMediaTask->numHandledMsgErrs());
CPPUNIT_ASSERT_EQUAL(0, pMediaTask->numStartedFlowGraphs());
CPPUNIT_ASSERT(!pFlowGraph->isStarted());
// Test 5: Attempt to stop the same flow graph again
pMediaTask->numHandledMsgErrs(); // clear the count
res = pMediaTask->stopFlowGraph(*pFlowGraph);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = MpMediaTask::signalFrameStart(); // signal the media task and
CPPUNIT_ASSERT(res == OS_SUCCESS); // give it a chance to run
OsTask::delay(20);
//CPPUNIT_ASSERT_EQUAL(1, pMediaTask->numHandledMsgErrs());
CPPUNIT_ASSERT_EQUAL(0, pMediaTask->numStartedFlowGraphs());
CPPUNIT_ASSERT(!pFlowGraph->isStarted());
// Test 6: Attempt to stop a flow graph that is not being managed
pMediaTask->numHandledMsgErrs(); // clear the count
res = pMediaTask->unmanageFlowGraph(*pFlowGraph);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = pMediaTask->stopFlowGraph(*pFlowGraph);
CPPUNIT_ASSERT(res == OS_SUCCESS);
res = MpMediaTask::signalFrameStart(); // signal the media task and
CPPUNIT_ASSERT(res == OS_SUCCESS); // give it a chance to run
OsTask::delay(20);
CPPUNIT_ASSERT_EQUAL(1, pMediaTask->numHandledMsgErrs());
CPPUNIT_ASSERT_EQUAL(0, pMediaTask->numStartedFlowGraphs());
CPPUNIT_ASSERT(!pFlowGraph->isStarted());
delete pFlowGraph;
}