static void task_func1(long dummy)
{
rt_printk("Starting task1, waiting on the conditional variable to be 1.\n");
rt_mutex_lock(&mtx);
while(cond_data < 1) {
rt_cond_wait(&cond, &mtx);
}
rt_mutex_unlock(&mtx);
if(cond_data == 1) {
rt_printk("task1, conditional variable signalled, value: %d.\n", cond_data);
}
rt_printk("task1 signals after setting data to 2.\n");
rt_printk("task1 waits for a broadcast.\n");
rt_mutex_lock(&mtx);
cond_data = 2;
rt_cond_signal(&cond);
while(cond_data < 3) {
rt_cond_wait(&cond, &mtx);
}
rt_mutex_unlock(&mtx);
if(cond_data == 3) {
rt_printk("task1, conditional variable broadcasted, value: %d.\n", cond_data);
}
rt_printk("Ending task1.\n");
atomic_inc(&cleanup);
}
/**
* Timer Task
*/
void timerloop_task_proc(void *arg)
{
int ret = 0;
getElapsedTime();
last_timeout_set = 0;
last_occured_alarm = last_time_read;
/* trigger first alarm */
SetAlarm(callback_od, 0, init_callback, 0, 0);
RTIME current_time;
RTIME real_alarm;
do{
rt_mutex_acquire(&condition_mutex, TM_INFINITE);
if(last_timeout_set == TIMEVAL_MAX)
{
ret = rt_cond_wait(
&timer_set,
&condition_mutex,
TM_INFINITE
); /* Then sleep until next message*/
rt_mutex_release(&condition_mutex);
}else{
current_time = rt_timer_read();
real_alarm = last_time_read + last_timeout_set;
ret = rt_cond_wait( /* sleep until next deadline */
&timer_set,
&condition_mutex,
(real_alarm - current_time)); /* else alarm consider expired */
if(ret == -ETIMEDOUT){
last_occured_alarm = real_alarm;
rt_mutex_release(&condition_mutex);
EnterMutex();
TimeDispatch();
LeaveMutex();
}else{
rt_mutex_release(&condition_mutex);
}
}
}while ((ret == 0 || ret == -EINTR || ret == -ETIMEDOUT) && !stop_timer);
if(exitall){
EnterMutex();
exitall(callback_od, 0);
LeaveMutex();
}
}
int rtos_cond_wait(rt_cond_t *cond, rt_mutex_t *mutex)
{
CHK_LXRT_CALL();
int ret = rt_cond_wait(cond->cond, mutex->sem );
if (ret == 0)
return 0;
return -1;
}
void ElevatorController::floorRun() {
unsigned char topItem;
while(true)
{
if(!this->eStat.getGDFailedEmptyHeap())
{
rt_mutex_acquire(&(this->rtData.mutex), TM_INFINITE);
rt_cond_wait(&(this->rtData.freeCond), &(this->rtData.mutex), TM_INFINITE);
int upHeapSize = this->getUpHeap().getSize();
int downHeapSize = this->getDownHeap().getSize();
if(upHeapSize==0 && downHeapSize==0){this->eStat.setGDFailedEmptyHeap(true);}
if(this->eStat.getServiceDirection() == DIRECTION_DOWN)
{
if(downHeapSize > 0)
{
topItem = this->getDownHeap().peek();
}else if(upHeapSize > 0)
{
topItem = this->getUpHeap().peek();
}this->downHeap.pushFloorRequestVector(this->missedFloorSelections);
}else if(this->eStat.getServiceDirection() == DIRECTION_UP)
{
if(upHeapSize > 0)
{
topItem = this->getUpHeap().peek();
}else if(downHeapSize > 0)
{
topItem = this->getDownHeap().peek();
}
}
int tempDirection = this->eStat.getDirection();
if(topItem != this->eStat.getDestination())
{
rt_printf("FR%d next Dest is %d\n.", this->getID(), topItem);
this->getSimulator()->setFinalDestination(topItem);
this->eStat.setDestination(topItem);
rt_printf("FR%d tempDirection is %d afterDirection is %d\n.", this->getID(), tempDirection, this->getSimulator()->getDirection());
}
if(tempDirection != this->getSimulator()->getDirection())
{
this->updateMissedFloor(tempDirection);
this->notifyDirectionChanged(this->getSimulator()->getDirection());
}
rt_mutex_release(&(this->rtData.mutex));
}
}
}
static void task_func2(long dummy)
{
rt_printk("Starting task2, waiting on the conditional variable to be 2.\n");
rt_mutex_lock(&mtx);
while(cond_data < 2) {
rt_cond_wait(&cond, &mtx);
}
rt_mutex_unlock(&mtx);
if(cond_data == 2) {
rt_printk("task2, conditional variable signalled, value: %d.\n", cond_data);
}
rt_printk("task2 waits for a broadcast.\n");
rt_mutex_lock(&mtx);
while(cond_data < 3) {
rt_cond_wait(&cond, &mtx);
}
rt_mutex_unlock(&mtx);
if(cond_data == 3) {
rt_printk("task2, conditional variable broadcasted, value: %d.\n", cond_data);
}
rt_printk("Ending task2.\n");
atomic_inc(&cleanup);
}
static void task_func4(long dummy)
{
rt_printk("Starting task4, signalling after setting data to 1, then waits for a broadcast.\n");
rt_mutex_lock(&mtx);
cond_data = 1;
rt_mutex_unlock(&mtx);
rt_cond_signal(&cond);
rt_mutex_lock(&mtx);
while(cond_data < 3) {
rt_cond_wait(&cond, &mtx);
}
rt_mutex_unlock(&mtx);
if(cond_data == 3) {
rt_printk("task4, conditional variable broadcasted, value: %d.\n", cond_data);
}
rt_printk("Ending task4.\n");
atomic_inc(&cleanup);
}
int __po_hi_gqueue_get_value (__po_hi_task_id id,
__po_hi_local_port_t port,
__po_hi_request_t* request)
{
__po_hi_request_t* ptr;
#ifdef RTEMS_PURE
rtems_status_code ret;
#endif
#ifdef _WIN32
DWORD ret;
#endif
ptr = &__po_hi_gqueues_most_recent_values[id][port];
#if defined (POSIX) || defined (RTEMS_POSIX) || defined (XENO_POSIX)
pthread_mutex_lock (&__po_hi_gqueues_mutexes[id]);
#elif defined (XENO_NATIVE)
rt_mutex_acquire (&__po_hi_gqueues_mutexes[id], TM_INFINITE);
#elif defined (RTEMS_PURE)
ret = rtems_semaphore_obtain (__po_hi_gqueues_semaphores[id], RTEMS_WAIT, RTEMS_NO_TIMEOUT);
if (ret != RTEMS_SUCCESSFUL)
{
__DEBUGMSG ("[GQUEUE] Cannot obtain semaphore in __po_hi_gqueue_store_in()\n");
}
#elif defined (_WIN32)
EnterCriticalSection(&__po_hi_gqueues_cs[id]);
#endif
/*
* If the port is an event port, with no value queued, then we block
* the thread.
*/
if (__po_hi_gqueues_sizes[id][port] != __PO_HI_GQUEUE_FIFO_INDATA)
{
while (__po_hi_gqueues_port_is_empty[id][port] == 1)
{
#if defined (POSIX) || defined (RTEMS_POSIX) || defined (XENO_POSIX)
pthread_cond_wait (&__po_hi_gqueues_conds[id],
&__po_hi_gqueues_mutexes[id]);
#elif defined (XENO_NATIVE)
rt_cond_wait (&__po_hi_gqueues_conds[id], &__po_hi_gqueues_mutexes[id], TM_INFINITE);
#elif defined (RTEMS_PURE)
rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
#elif defined (_WIN32)
LeaveCriticalSection(&__po_hi_gqueues_cs[id]);
ret = WaitForSingleObject (__po_hi_gqueues_events[id], INFINITE);
if (ret == WAIT_FAILED)
{
__PO_HI_DEBUG_CRITICAL ("[GQUEUE] Wait failed\n");
}
EnterCriticalSection(&__po_hi_gqueues_cs[id]);
#endif
}
}
#if defined (MONITORING)
update_sporadic_dispatch (id, port);
#endif
if (__po_hi_gqueues_used_size[id][port] == 0)
{
memcpy (request, ptr, sizeof (__po_hi_request_t));
//update_runtime (id, port, ptr);
}
else
{
ptr = ((__po_hi_request_t *) &__po_hi_gqueues[id][port]) + __po_hi_gqueues_first[id][port] + __po_hi_gqueues_offsets[id][port];
memcpy (request, ptr, sizeof (__po_hi_request_t));
}
__PO_HI_DEBUG_INFO ("[GQUEUE] Task %d get a value on port %d\n", id, port);
#if defined (POSIX) || defined (RTEMS_POSIX) || defined (XENO_POSIX)
pthread_mutex_unlock (&__po_hi_gqueues_mutexes[id]);
#elif defined (XENO_NATIVE)
rt_mutex_release (&__po_hi_gqueues_mutexes[id]);
#elif defined (RTEMS_PURE)
ret = rtems_semaphore_release (__po_hi_gqueues_semaphores[id]);
if (ret != RTEMS_SUCCESSFUL)
{
__DEBUGMSG ("[GQUEUE] Cannot release semaphore in __po_hi_gqueue_store_in()\n");
}
#elif defined (_WIN32)
LeaveCriticalSection(&__po_hi_gqueues_cs[id]);
#endif
return 0;
}
void __po_hi_gqueue_wait_for_incoming_event (__po_hi_task_id id,
__po_hi_local_port_t* port)
{
#ifdef RTEMS_PURE
rtems_status_code ret;
#endif
#ifdef _WIN32
DWORD ret;
#endif
#if defined (POSIX) || defined (RTEMS_POSIX) || defined (XENO_POSIX)
int error = pthread_mutex_lock (&__po_hi_gqueues_mutexes[id]);
__DEBUGMSG("*** Locking (%d) %d\n", id, error);
#elif defined (XENO_NATIVE)
rt_mutex_acquire (&__po_hi_gqueues_mutexes[id], TM_INFINITE);
#elif defined (RTEMS_PURE)
ret = rtems_semaphore_obtain (__po_hi_gqueues_semaphores[id], RTEMS_WAIT, RTEMS_NO_TIMEOUT);
if (ret != RTEMS_SUCCESSFUL)
{
__DEBUGMSG ("[GQUEUE] Cannot obtain semaphore in __po_hi_gqueue_store_in()\n");
}
#elif defined (_WIN32)
EnterCriticalSection(&__po_hi_gqueues_cs[id]);
#endif
while(__po_hi_gqueues_queue_is_empty[id] == 1)
{
__PO_HI_INSTRUMENTATION_VCD_WRITE("0t%d\n", id);
#if defined (POSIX) || defined (RTEMS_POSIX) || defined (XENO_POSIX)
__DEBUGMSG("*** Waiting (%d)\n", id);
int error = pthread_cond_wait (&__po_hi_gqueues_conds[id],
&__po_hi_gqueues_mutexes[id]);
__DEBUGMSG("*** Done Waiting (%d) %d\n", id, error);
#elif defined (XENO_NATIVE)
rt_cond_wait (&__po_hi_gqueues_conds[id], &__po_hi_gqueues_mutexes[id], TM_INFINITE);
#elif defined (RTEMS_PURE)
ret = rtems_semaphore_release (__po_hi_gqueues_semaphores[id]);
if (ret != RTEMS_SUCCESSFUL)
{
__DEBUGMSG ("[GQUEUE] Cannot obtain semaphore in __po_hi_gqueue_store_in()\n");
}
rtems_task_wake_after (1);
ret = rtems_semaphore_obtain (__po_hi_gqueues_semaphores[id], RTEMS_WAIT, RTEMS_NO_TIMEOUT);
if (ret != RTEMS_SUCCESSFUL)
{
__DEBUGMSG ("[GQUEUE] Cannot obtain semaphore in __po_hi_gqueue_store_in()\n");
}
else
{
__PO_HI_DEBUG_CRITICAL ("[GQUEUE] semaphore %d obtained\n", id);
}
#elif defined (_WIN32)
LeaveCriticalSection(&__po_hi_gqueues_cs[id]);
ret = WaitForSingleObject (__po_hi_gqueues_events[id], INFINITE);
if (ret == WAIT_FAILED)
{
__PO_HI_DEBUG_CRITICAL ("[GQUEUE] Wait failed\n");
}
EnterCriticalSection(&__po_hi_gqueues_cs[id]);
#endif
__PO_HI_INSTRUMENTATION_VCD_WRITE("1t%d\n", id);
}
__DEBUGMSG ("[GQUEUE] Gogo kiki\n");
*port = __po_hi_gqueues_global_history[id][__po_hi_gqueues_global_history_offset[id]];
#if defined (POSIX) || defined (RTEMS_POSIX) || defined (XENO_POSIX)
pthread_mutex_unlock (&__po_hi_gqueues_mutexes[id]);
#elif defined (XENO_NATIVE)
rt_mutex_release (&__po_hi_gqueues_mutexes[id]);
#elif defined (_WIN32)
LeaveCriticalSection(&__po_hi_gqueues_cs[id]);
#elif defined (RTEMS_PURE)
ret = rtems_semaphore_release (__po_hi_gqueues_semaphores[id]);
if (ret != RTEMS_SUCCESSFUL)
{
__DEBUGMSG ("[GQUEUE] Cannot release semaphore in __po_hi_gqueue_store_in()\n");
}
__PO_HI_DEBUG_CRITICAL ("[GQUEUE] semaphore %d released\n", id);
#endif
}
int __po_hi_wait_initialization ()
{
#if defined (POSIX) || defined (RTEMS_POSIX) || defined (XENO_POSIX)
int cstate;
if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, &cstate) != 0)
{
__DEBUGMSG ("[MAIN] Cannot modify the cancel state\n");
}
if (pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &cstate) != 0)
{
__DEBUGMSG ("[MAIN] Cannot modify the cancel type\n");
}
if (pthread_mutex_lock (&mutex_init) != 0)
{
__DEBUGMSG ("[MAIN] Unable to lock the mutex\n");
return (__PO_HI_ERROR_PTHREAD_MUTEX);
}
__po_hi_initialized_tasks++;
__DEBUGMSG ("[MAIN] %d task(s) initialized (total to init =%d)\n", __po_hi_initialized_tasks, __po_hi_nb_tasks_to_init);
while (__po_hi_initialized_tasks < __po_hi_nb_tasks_to_init)
{
pthread_cond_wait (&cond_init, &mutex_init);
}
pthread_cond_broadcast (&cond_init);
pthread_mutex_unlock (&mutex_init);
__PO_HI_INSTRUMENTATION_VCD_INIT
return (__PO_HI_SUCCESS);
#elif defined (_WIN32)
EnterCriticalSection (&__po_hi_main_initialization_critical_section);
__po_hi_initialized_tasks++;
__DEBUGMSG ("[MAIN] %d task(s) initialized (total to init =%d)\n", __po_hi_initialized_tasks, __po_hi_nb_tasks_to_init);
while (__po_hi_initialized_tasks < __po_hi_nb_tasks_to_init)
{
LeaveCriticalSection (&__po_hi_main_initialization_critical_section);
WaitForSingleObject (__po_hi_main_initialization_event, INFINITE);
EnterCriticalSection (&__po_hi_main_initialization_critical_section);
}
SetEvent (__po_hi_main_initialization_event);
LeaveCriticalSection (&__po_hi_main_initialization_critical_section);
return (__PO_HI_SUCCESS);
#elif defined (__PO_HI_RTEMS_CLASSIC_API)
rtems_status_code ret;
__DEBUGMSG ("[MAIN] Task wait for the barrier\n");
ret = rtems_barrier_wait (__po_hi_main_initialization_barrier, RTEMS_WAIT);
if (ret != RTEMS_SUCCESSFUL)
{
__DEBUGMSG ("[MAIN] Error while waiting for the barrier, return code=%d\n", ret);
return (__PO_HI_ERROR_UNKNOWN);
}
__DEBUGMSG ("[MAIN] Task release the barrier\n");
return (__PO_HI_SUCCESS);
#elif defined (XENO_NATIVE)
int ret;
if (main_task_id == rt_task_self ())
{
/*
* Here, this function is called by the main thread (the one that executes
* the main() function) so that we don't wait for the initialization of the
* other tasks, we automatically pass through the function and immeditaly
* return.
*/
return (__PO_HI_SUCCESS);
}
ret = rt_mutex_acquire (&mutex_init, TM_INFINITE);
if (ret != 0)
{
__DEBUGMSG ("[MAIN] Cannot acquire mutex (return code = %d)\n", ret);
return (__PO_HI_ERROR_PTHREAD_MUTEX);
}
__po_hi_initialized_tasks++;
__DEBUGMSG ("[MAIN] %d task(s) initialized (total to init =%d)\n", __po_hi_initialized_tasks, __po_hi_nb_tasks_to_init);
while (__po_hi_initialized_tasks < __po_hi_nb_tasks_to_init)
{
rt_cond_wait (&cond_init, &mutex_init, TM_INFINITE);
}
rt_cond_broadcast (&cond_init);
rt_mutex_release (&mutex_init);
return (__PO_HI_SUCCESS);
#else
return (__PO_HI_UNAVAILABLE);
#endif
}
static void *fun0(void *arg)
{
RT_TASK *task;
int done1=0, cnt1=0;
RTIME right_now;
int ret;
task = rt_task_init_schmod(nam2num("TASK0"), 0, 0, 0, SCHED_FIFO, 0xF);
mlockall(MCL_CURRENT | MCL_FUTURE);
rt_make_hard_real_time();
while (cnt1 < THRESHOLD) {
rt_sem_wait(mutex);
rt_printk("fun0: Hello World %d, instance_cnt %d!\n",cnt1,instance_cnt);
while (instance_cnt<0) {
ret = rt_cond_wait(cond, mutex);
if (ret != 0) {
rt_printk("error in rt_cond_wait, code %d\n",ret);
switch (ret) {
case RTE_PERM:
rt_printk("error RTE_PERM %d\n",ret);
break;
case RTE_UNBLKD:
rt_printk("error RTE_UNBLKD %d\n",ret);
break;
case RTE_OBJREM:
rt_printk("error RTE_OBJREM %d\n",ret);
break;
default:
rt_printk("unknown error code %d\n",ret);
break;
}
break;
}
}
rt_sem_signal(mutex);
// do some work here
cnt1++;
rt_sem_wait(mutex);
instance_cnt--;
rt_sem_signal(mutex);
}
// makes task soft real time
rt_make_soft_real_time();
printf("Back to soft RT\n");
// clean task
rt_task_delete(task);
printf("Task deleted. returning\n");
return 0;
}