int picreate (int credCreate, void* (*func)(void*), void *arg){
if (isMainCreated == 0){
isMainCreated = 1;
scheduler = initializeScheduler();
}
//criar TCB da nova thread
TCB_t *newTCB = (TCB_t *) malloc(sizeof(TCB_t));
newTCB->tid = ++Ids;
newTCB->state = 1; //já é criada em apto.
newTCB->credCreate = credCreate;
newTCB->credReal = credCreate;
newTCB->prev = NULL;
newTCB->next = NULL;
//configura novo contexto
ucontext_t newContext;
getcontext(&newContext); //cria esqueleto de contexto
/*newContext.uc_stack.ss_sp = malloc(STACKSIZE);
newContext.uc_stack.ss_size = sizeof(STACKSIZE);
newContext.uc_stack.ss_flags = 0;
newContext.uc_link = NULL;*/
makecontext(&newContext, (void (*)(void)) func, 0 ); //setar o contexto pra apontar pra função que vem no parametro
//nova TCB recebe novo contexto
newTCB->context = newContext;
//adicionar esta porra na lista de aptos
insertTCB(scheduler, newTCB);
printQueue(scheduler);
printf ("\tCreated thread with id: %d\n", newTCB->tid);
return 0;
}
int main ( void )
{
init_print ();
int0_init ();
initializeScheduler ();
createTask ( &function_1, "fun_one", 1, 200 );
createTask ( &function_2, "fun_two", 2, 200 );
createTask ( &function_3, "fun_three", 3, 200 );
createTask ( &function_4, "fun_four", 4, 50 );
startScheduler ();
return 0;
}
World* World_New(WorldOptions *inOptions)
{
#if (_POSIX_MEMLOCK - 0) >= 200112L
if (inOptions->mMemoryLocking && inOptions->mRealTime)
{
bool lock_memory = false;
rlimit limit;
int failure = getrlimit(RLIMIT_MEMLOCK, &limit);
if (failure)
scprintf("getrlimit failure\n");
else
{
if (limit.rlim_cur == RLIM_INFINITY and
limit.rlim_max == RLIM_INFINITY)
lock_memory = true;
else
scprintf("memory locking disabled due to resource limiting\n");
if (lock_memory)
{
if (mlockall(MCL_FUTURE) != -1)
scprintf("memory locking enabled.\n");
}
}
}
#endif
World *world = 0;
try {
static bool gLibInitted = false;
if (!gLibInitted) {
InterfaceTable_Init();
initialize_library(inOptions->mUGensPluginPath);
initializeScheduler();
gLibInitted = true;
}
world = (World*)zalloc(1, sizeof(World));
world->hw = (HiddenWorld*)zalloc(1, sizeof(HiddenWorld));
world->hw->mAllocPool = new AllocPool(malloc, free, inOptions->mRealTimeMemorySize * 1024, 0);
world->hw->mQuitProgram = new boost::sync::semaphore(0);
world->hw->mTerminating = false;
HiddenWorld *hw = world->hw;
hw->mGraphDefLib = new HashTable<struct GraphDef, Malloc>(&gMalloc, inOptions->mMaxGraphDefs, false);
hw->mNodeLib = new IntHashTable<Node, AllocPool>(hw->mAllocPool, inOptions->mMaxNodes, false);
hw->mUsers = new Clients();
hw->mMaxUsers = inOptions->mMaxLogins;
hw->mAvailableClientIDs = new ClientIDs();
for (int i = 0; i<hw->mMaxUsers; i++) {
hw->mAvailableClientIDs->push_back(i);
}
hw->mClientIDdict = new ClientIDDict();
hw->mHiddenID = -8;
hw->mRecentID = -8;
world->mNumUnits = 0;
world->mNumGraphs = 0;
world->mNumGroups = 0;
world->mBufCounter = 0;
world->mBufLength = inOptions->mBufLength;
world->mSampleOffset = 0;
world->mSubsampleOffset = 0.f;
world->mNumAudioBusChannels = inOptions->mNumAudioBusChannels;
world->mNumControlBusChannels = inOptions->mNumControlBusChannels;
world->mNumInputs = inOptions->mNumInputBusChannels;
world->mNumOutputs = inOptions->mNumOutputBusChannels;
world->mVerbosity = inOptions->mVerbosity;
world->mErrorNotification = 1; // i.e., 0x01 | 0x02
world->mLocalErrorNotification = 0;
if (inOptions->mSharedMemoryID) {
server_shared_memory_creator::cleanup(inOptions->mSharedMemoryID);
hw->mShmem = new server_shared_memory_creator(inOptions->mSharedMemoryID, inOptions->mNumControlBusChannels);
world->mControlBus = hw->mShmem->get_control_busses();
} else {
hw->mShmem = 0;
world->mControlBus = (float*)zalloc(world->mNumControlBusChannels, sizeof(float));
}
world->mNumSharedControls = 0;
world->mSharedControls = inOptions->mSharedControls;
int numsamples = world->mBufLength * world->mNumAudioBusChannels;
world->mAudioBus = (float*)zalloc(numsamples, sizeof(float));
world->mAudioBusTouched = (int32*)zalloc(inOptions->mNumAudioBusChannels, sizeof(int32));
world->mControlBusTouched = (int32*)zalloc(inOptions->mNumControlBusChannels, sizeof(int32));
world->mNumSndBufs = inOptions->mNumBuffers;
world->mSndBufs = (SndBuf*)zalloc(world->mNumSndBufs, sizeof(SndBuf));
world->mSndBufsNonRealTimeMirror = (SndBuf*)zalloc(world->mNumSndBufs, sizeof(SndBuf));
world->mSndBufUpdates = (SndBufUpdates*)zalloc(world->mNumSndBufs, sizeof(SndBufUpdates));
GroupNodeDef_Init();
int err = Group_New(world, 0, &world->mTopGroup);
if (err) throw err;
world->mRealTime = inOptions->mRealTime;
world->ft = &gInterfaceTable;
world->mNumRGens = inOptions->mNumRGens;
world->mRGen = new RGen[world->mNumRGens];
for (uint32 i=0; i<world->mNumRGens; ++i) {
world->mRGen[i].init(server_timeseed());
}
world->mNRTLock = new SC_Lock();
world->mDriverLock = new SC_Lock();
if (inOptions->mPassword) {
strncpy(world->hw->mPassword, inOptions->mPassword, 31);
world->hw->mPassword[31] = 0;
} else {
world->hw->mPassword[0] = 0;
}
#ifdef __APPLE__
world->hw->mInputStreamsEnabled = inOptions->mInputStreamsEnabled;
world->hw->mOutputStreamsEnabled = inOptions->mOutputStreamsEnabled;
#endif
world->hw->mInDeviceName = inOptions->mInDeviceName;
world->hw->mOutDeviceName = inOptions->mOutDeviceName;
hw->mMaxWireBufs = inOptions->mMaxWireBufs;
hw->mWireBufSpace = 0;
world->mRendezvous = inOptions->mRendezvous;
world->mRestrictedPath = inOptions->mRestrictedPath;
sc_SetDenormalFlags();
if (world->mRealTime) {
hw->mAudioDriver = SC_NewAudioDriver(world);
hw->mAudioDriver->SetPreferredHardwareBufferFrameSize(
inOptions->mPreferredHardwareBufferFrameSize
);
hw->mAudioDriver->SetPreferredSampleRate(
inOptions->mPreferredSampleRate
);
if (inOptions->mLoadGraphDefs) {
World_LoadGraphDefs(world);
}
if (!hw->mAudioDriver->Setup()) {
scprintf("could not initialize audio.\n");
return 0;
}
if (!hw->mAudioDriver->Start()) {
scprintf("start audio failed.\n");
return 0;
}
#ifdef __APPLE__
SC::Apple::disableAppNap();
#endif
} else {
hw->mAudioDriver = 0;
}
if (!scsynth::asioThreadStarted()){
scsynth::startAsioThread();
}
} catch (std::exception& exc) {
scprintf("Exception in World_New: %s\n", exc.what());
World_Cleanup(world,true);
return 0;
} catch (...) {
}
return world;
}