void SystemSingletonInternal::RegisterDestroyCallback()
{
GetSSILock().DoLock();
if (ShuttingDown)
{
GetSSILock().Unlock();
OnThreadDestroy();
}
else
{
GetSSILock().Unlock();
// Insert the listener at the front of the list (top of the stack). This is an analogue of a C++ forward_list::push_front or stack::push.
NextShutdownSingleton = SystemShutdownListenerList;
SystemShutdownListenerList = this;
}
}
//
// ThreadProc
//
// When this returns the thread exits
// Return codes > 0 indicate an error occured
DWORD CSourceStream::ThreadProc(void) {
HRESULT hr; // the return code from calls
Command com;
do {
com = GetRequest();
if (com != CMD_INIT) {
DbgLog((LOG_ERROR, 1, TEXT("Thread expected init command")));
Reply((DWORD) E_UNEXPECTED);
}
} while (com != CMD_INIT);
DbgLog((LOG_TRACE, 1, TEXT("CSourceStream worker thread initializing")));
hr = OnThreadCreate(); // perform set up tasks
if (FAILED(hr)) {
DbgLog((LOG_ERROR, 1, TEXT("CSourceStream::OnThreadCreate failed. Aborting thread.")));
OnThreadDestroy();
Reply(hr); // send failed return code from OnThreadCreate
return 1;
}
// Initialisation suceeded
Reply(NOERROR);
Command cmd;
do {
cmd = GetRequest();
switch (cmd) {
case CMD_EXIT:
Reply(NOERROR);
break;
case CMD_RUN:
DbgLog((LOG_ERROR, 1, TEXT("CMD_RUN received before a CMD_PAUSE???")));
// !!! fall through???
case CMD_PAUSE:
Reply(NOERROR);
DoBufferProcessingLoop();
break;
case CMD_STOP:
Reply(NOERROR);
break;
default:
DbgLog((LOG_ERROR, 1, TEXT("Unknown command %d received!"), cmd));
Reply((DWORD) E_NOTIMPL);
break;
}
} while (cmd != CMD_EXIT);
hr = OnThreadDestroy(); // tidy up.
if (FAILED(hr)) {
DbgLog((LOG_ERROR, 1, TEXT("CSourceStream::OnThreadDestroy failed. Exiting thread.")));
return 1;
}
DbgLog((LOG_TRACE, 1, TEXT("CSourceStream worker thread exiting")));
return 0;
}
