void PollThread(void *dummy) #endif { unsigned c; dummy = dummy; while ( !stopPoll ) { c = GetCycleCount(); if ( !MIDASpoll() ) MIDASerror(); c = GetCycleCount() - c; if ( pollCount > 100 ) { if ( c < pollMin ) pollMin = c; if ( c > pollMax ) pollMax = c; pollTotal += c; } pollCount++; Sleep(rand() % 40); if ( (rand() % 8) < 3 ) RandomPriority(); } stopPoll = 0; _endthread(); }
void Scheduler::HandleThreadStart() { ATOMIC_ADD_AND_FETCH(&curr_num_threads_, 1); ATOMIC_ADD_AND_FETCH(&total_num_threads_, 1); if (main_thread_started_) { // child thread start_sched_ = true; if (!delay_) { int priority = RandomPriority(); SetPriority(priority); } } else { // main thread if (!delay_) { SetAffinity(); // force all the threads to be executed on one processor int priority = RandomPriority(); SetPriority(priority); } } ExecutionControl::HandleThreadStart(); }
void Scheduler::HandleChange(UINT32 c) { if (start_sched_) { unsigned long k = ATOMIC_ADD_AND_FETCH(&total_inst_count_, c); if (NeedChange(k)) { if (delay_) { // inject delay RandomDelay(); } else { // change priority int priority = RandomPriority(); SetPriority(priority); } } } }
int main(int argc, char *argv[]) { char oldTitle[256]; unsigned i; /* char *foo;*/ MIDASstartup(); /* Keep the test somewhat reproducable: */ srand(17); setbuf(stdout, NULL); puts("MIDAS stream test\n\n" "The sound output may sound strange, but the program should _NOT_ " "crash"); puts("Trying to get window handle"); /* Hack - try to figure out our console window's window handle: */ GetConsoleTitle(oldTitle, 255); SetConsoleTitle("DirectSound TestiKala"); Sleep(250); EnumWindows(&EnumWindowsProc, (LPARAM) NULL); SetConsoleTitle(oldTitle); printf("%P, %u\n", consoleHwnd, sizeof(HWND)); if ( consoleHwnd == NULL ) Error("Couldn't find window handle"); puts("Trying to use DirectSound primary buffer mode"); MIDASsetOption(MIDAS_OPTION_DSOUND_HWND, (DWORD) consoleHwnd); MIDASsetOption(MIDAS_OPTION_DSOUND_MODE, MIDAS_DSOUND_PRIMARY); /* Initialize MIDAS and start background playback: */ if ( !MIDASinit() ) MIDASerror(); /* if ( !MIDASstartBackgroundPlay(0) ) MIDASerror();*/ #ifdef _MSC_VER if ( _beginthread(PollThread, 4096, NULL) == -1 ) Error("Unable to create polling thread"); #else if ( _beginthread(PollThread, NULL, 4096, NULL) == -1 ) Error("Unable to create polling thread"); #endif /* Open enough channels: */ if ( !MIDASopenChannels(32) ) MIDASerror(); /* Allocate some channels for automatic effects: */ if ( !MIDASallocAutoEffectChannels(12) ) MIDASerror(); /* Load the initial module and sample: */ puts("Loading modules"); if ( (module1 = MIDASloadModule(MODULE1)) == NULL ) MIDASerror(); if ( (module2 = MIDASloadModule(MODULE2)) == NULL ) MIDASerror(); puts("Loading samples"); if ( (sample1 = MIDASloadRawSample(SAMPLE1, MIDAS_SAMPLE_8BIT_MONO, FALSE)) == 0 ) MIDASerror(); if ( (sample2 = MIDASloadRawSample(SAMPLE2, MIDAS_SAMPLE_16BIT_MONO, FALSE)) == 0 ) MIDASerror(); /* Swap stuff out: */ /* puts("Touching a LOT of memory"); if ( (foo = malloc(64*1024*1024)) == NULL ) Error("Out of memory"); for ( i = 0; i < (64*1024*1024); i++ ) foo[i] = (i & 255); */ puts("Playing stream"); if ( (stream1 = MIDASplayStreamWaveFile(STREAM1, 500, TRUE)) == NULL ) MIDASerror(); /* Play the module: */ puts("Playing module"); if ( (playHandle1 = MIDASplayModule(module1, TRUE)) == 0 ) MIDASerror(); /* Play effects for a while: */ puts("Playing samples"); for ( i = 0; i < 1000; i++ ) { switch ( rand() & 8 ) { case 0: if ( MIDASplaySample(sample1, MIDAS_CHANNEL_AUTO, 0, 22050 + ((rand() % 30000) - 15000), rand() % 24, (rand() % 128) - 64) == 0 ) MIDASerror(); break; case 8: if ( MIDASplaySample(sample2, MIDAS_CHANNEL_AUTO, 0, 22050 + ((rand() % 30000) - 15000), rand() % 24, (rand() % 128) - 64) == 0 ) MIDASerror(); break; } Sleep(rand() % 27); if ( (rand() % 8) < 2 ) RandomPriority(); printf("%u\n", MIDASgetStreamBytesBuffered(stream1)); } puts("Stopping"); stopPoll = 1; while ( stopPoll ) Sleep(10); if ( !MIDASstopStream(stream1) ) MIDASerror(); /* Stop playback and uninitialize MIDAS: */ /* if ( !MIDAScloseChannels() ) MIDASerror();*/ /* if ( !MIDASstopBackgroundPlay() ) MIDASerror();*/ if ( !MIDASclose() ) MIDASerror(); printf("Poll total %u, min %u, max %u, avg %u, count %u\n", pollTotal, pollMin, pollMax, pollTotal/(pollCount-100), pollCount); return 0; }