//----------------------------------------------------------------------------
int tn_queue_delete(TN_DQUE * dque)
{
TN_INTSAVE_DATA
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(dque == NULL)
return TERR_WRONG_PARAM;
if(dque->id_dque != TN_ID_DATAQUEUE)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
while(!is_queue_empty(&(dque->wait_send_list)))
{
tn_disable_interrupt();
//--- delete from sem wait queue
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
if(task_wait_complete(task))
{
task->task_wait_rc = TERR_DLT;
tn_enable_interrupt();
tn_switch_context();
}
}
while(!is_queue_empty(&(dque->wait_receive_list)))
{
tn_disable_interrupt();
//--- delete from sem wait queue
que = queue_remove_head(&(dque->wait_receive_list));
task = get_task_by_tsk_queue(que);
if(task_wait_complete(task))
{
task->task_wait_rc = TERR_DLT;
tn_enable_interrupt();
tn_switch_context();
}
}
if(tn_chk_irq_disabled() == 0) // int enable
tn_disable_interrupt();
dque->id_dque = 0; // Data queue not exists now
tn_enable_interrupt();
return TERR_NO_ERR;
}
//----------------------------------------------------------------------------
int tn_mutex_delete(TN_MUTEX * mutex)
{
TN_INTSAVE_DATA
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(mutex == NULL)
return TERR_WRONG_PARAM;
if(mutex->id_mutex != TN_ID_MUTEX)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
if(tn_curr_run_task != mutex->holder)
{
tn_enable_interrupt();
return TERR_ILUSE;
}
//-- Remove all tasks(if any) from mutex's wait queue
while(!is_queue_empty(&(mutex->wait_queue)))
{
tn_disable_interrupt();
que = queue_remove_head(&(mutex->wait_queue));
task = get_task_by_tsk_queue(que);
//-- If the task in system's blocked list, remove it
if(task_wait_complete(task))
{
task->task_wait_rc = TERR_DLT;
tn_enable_interrupt();
tn_switch_context();
}
}
if(tn_chk_irq_disabled() == 0)
tn_disable_interrupt();
if(mutex->holder != NULL) //-- If the mutex is locked
{
do_unlock_mutex(mutex);
queue_reset(&(mutex->mutex_queue));
}
mutex->id_mutex = 0; // Mutex not exists now
tn_enable_interrupt();
return TERR_NO_ERR;
}
void hw_delay(unsigned long uS)
{
TN_INTSAVE_DATA
tn_disable_interrupt();
MAP_SysCtlDelay(MAP_SysCtlClockGet() / 1000000 * uS / 3); // The loop takes 3 cycles/loop
tn_enable_interrupt();
}
//----------------------------------------------------------------------------
int tn_task_sleep(unsigned long timeout)
{
TN_INTSAVE_DATA
int rc;
if(timeout == 0)
return TERR_WRONG_PARAM;
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
if(tn_curr_run_task->wakeup_count > 0)
{
tn_curr_run_task->wakeup_count--;
rc = TERR_NO_ERR;
}
else
{
task_curr_to_wait_action(NULL, TSK_WAIT_REASON_SLEEP, timeout);
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
// Acquire(Polling) Semaphore Resource (do not call in the interrupt)
//----------------------------------------------------------------------------
int tn_sem_polling(TN_SEM * sem)
{
TN_INTSAVE_DATA
int rc;
#if TN_CHECK_PARAM
if(sem == NULL)
return TERR_WRONG_PARAM;
if(sem->max_count == 0)
return TERR_WRONG_PARAM;
if(sem->id_sem != TN_ID_SEMAPHORE)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
if(sem->count >= 1)
{
sem->count--;
rc = TERR_NO_ERR;
}
else
rc = TERR_TIMEOUT;
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
int tn_fmem_get_polling(TN_FMP * fmp,void ** p_data)
{
TN_INTSAVE_DATA
int rc;
void * ptr;
#if TN_CHECK_PARAM
if(fmp == NULL || p_data == NULL)
return TERR_WRONG_PARAM;
if(fmp->id_fmp != TN_ID_FSMEMORYPOOL)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
ptr = fm_get(fmp);
if(ptr != NULL) //-- Get memory
{
*p_data = ptr;
rc = TERR_NO_ERR;
}
else
rc = TERR_TIMEOUT;
tn_enable_interrupt();
return rc;
}
/**
*
* @param task
*
* @return TN_RETVAL
*/
TN_RETVAL tnec_task_delete (TN_TCB_S *task)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_RETVAL rc;
if (task == TN_NULL)
return TERR_WRONG_PARAM;
if (task->id_task != TN_ID_TASK)
return TERR_NOEXS;
if (tn_is_non_task_context())
return TERR_WCONTEXT;
tn_disable_interrupt();
rc = TERR_NO_ERR;
for (;;)
{
if (task->task_state != TSK_STATE_DORMANT)
{
rc = TERR_WCONTEXT;
break;
}
queue_remove_entry(&(task->create_queue));
tn_created_tasks_qty--;
task->id_task = TN_ID_UNKNOWN;
break;
}
tn_enable_interrupt();
return rc;
}
//-----------------------------------------------------------------------------
int tn_task_delete(TN_TCB * task)
{
TN_INTSAVE_DATA
int rc;
#if TN_CHECK_PARAM
if(task == NULL)
return TERR_WRONG_PARAM;
if(task->id_task != TN_ID_TASK)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
rc = TERR_NO_ERR;
if(task->task_state != TSK_STATE_DORMANT)
rc = TERR_WCONTEXT; //-- Cannot delete not-terminated task
else
{
queue_remove_entry(&(task->create_queue));
tn_created_tasks_qty--;
task->id_task = 0;
}
tn_enable_interrupt();
return rc;
}
/**
*
* @param timeout
*
* @return TN_RETVAL
*/
TN_RETVAL tnnc_task_sleep (TN_TIMEOUT timeout)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_RETVAL rc;
/*
Not check parameter error
if (timeout == 0)
return TERR_WRONG_PARAM;
*/
if (tn_is_non_task_context())
{
return TERR_WCONTEXT;
}
tn_disable_interrupt();
if (tn_curr_run_task->wakeup_count > 0)
{
tn_curr_run_task->wakeup_count--;
rc = TERR_NO_ERR;
}
else
{
task_curr_to_wait_action(TN_NULL, TSK_WAIT_REASON_SLEEP, timeout);
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
tn_enable_interrupt();
return rc;
}
/**
*
* @param sem
* @param timeout
*
* @return TN_RETVAL
*/
TN_RETVAL tnec_sem_acquire (TN_SEM_S *sem, TN_TIMEOUT timeout)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_RETVAL rc;
if (sem == TN_NULL || timeout == 0 || sem->max_count == 0)
return TERR_WRONG_PARAM;
if (sem->id_sem != TN_ID_SEMAPHORE)
return TERR_NOEXS;
if (tn_is_non_task_context())
{
return TERR_WCONTEXT;
}
tn_disable_interrupt();
if (sem->count >= 1)
{
sem->count--;
rc = TERR_NO_ERR;
}
else
{
task_curr_to_wait_action(&(sem->wait_queue),TSK_WAIT_REASON_SEM,timeout);
tn_enable_interrupt();
tn_switch_context();
return tn_curr_run_task->task_wait_rc;
}
tn_enable_interrupt();
return rc;
}
unsigned long hw_time()
{
TN_INTSAVE_DATA
tn_disable_interrupt();
unsigned long const ticks = g_sys_ticks;
tn_enable_interrupt();
return ticks;
}
unsigned long hw_time_span(unsigned long time)
{
TN_INTSAVE_DATA
tn_disable_interrupt();
unsigned long const span = g_sys_ticks - time; // unsigned half owerflov
tn_enable_interrupt();
return span;
}
/**
*
* @param dque
* @param data_ptr
* @param timeout
*
* @return TN_RETVAL
*/
TN_RETVAL tnnc_queue_send (TN_DQUE_S *dque, void *data_ptr, TN_TIMEOUT timeout)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_RETVAL rc;
CDLL_QUEUE_S *que;
TN_TCB_S *task;
/*
Not check parameter error
if (dque == TN_NULL || timeout == 0)
return TERR_WRONG_PARAM;
*/
if (dque->id_dque != TN_ID_DATAQUEUE)
return TERR_NOEXS;
if (tn_is_non_task_context())
{
return TERR_WCONTEXT;
}
tn_disable_interrupt();
if (!is_queue_empty(&(dque->wait_receive_list)))
{
que = queue_remove_head(&(dque->wait_receive_list));
task = get_task_by_tsk_queue(que);
task->data_elem = data_ptr;
if (task_wait_complete(task, TN_FALSE))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else
{
rc = dque_fifo_write(dque,data_ptr);
if (rc != TERR_NO_ERR)
{
tn_curr_run_task->data_elem = data_ptr;
task_curr_to_wait_action(&(dque->wait_send_list), TSK_WAIT_REASON_DQUE_WSEND, timeout);
tn_enable_interrupt();
tn_switch_context();
return tn_curr_run_task->task_wait_rc;
}
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
int tn_event_wait(TN_EVENT * evf,
unsigned int wait_pattern,
int wait_mode,
unsigned int * p_flags_pattern,
unsigned int timeout)
{
TN_INTSAVE_DATA
int rc; //-- return code
int fCond;
if(evf == NULL || wait_pattern == 0 ||
p_flags_pattern == NULL || timeout == 0)
return TERR_WRONG_PARAM;
if(evf->id_event != TN_ID_EVENT)
return TERR_NOEXS;
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
//-- If event attr is TN_EVENT_ATTR_SINGLE and another task already
//-- in event wait queue - return ERROR without checking release condition
if((evf->attr & TN_EVENT_ATTR_SINGLE) && !is_queue_empty(&(evf->wait_queue)))
{
rc = TERR_ILUSE;
}
else
{
//-- Check release condition
if(wait_mode & TN_EVENT_WCOND_OR) // any setted bit is enough for release condition
fCond = ((evf->pattern & wait_pattern) != 0);
else // TN_EVENT_WCOND_AND is default mode
fCond = ((evf->pattern & wait_pattern) == wait_pattern);
if(fCond)
{
*p_flags_pattern = evf->pattern;
if(evf->attr & TN_EVENT_ATTR_CLR)
evf->pattern = 0;
rc = TERR_NO_ERR;
}
else
{
tn_curr_run_task->ewait_mode = wait_mode;
tn_curr_run_task->ewait_pattern = wait_pattern;
task_curr_to_wait_action(&(evf->wait_queue),TSK_WAIT_REASON_EVENT,timeout);
tn_enable_interrupt();
tn_switch_context();
if(tn_curr_run_task->task_wait_rc == TERR_NO_ERR)
*p_flags_pattern = tn_curr_run_task->ewait_pattern;
return tn_curr_run_task->task_wait_rc;
}
}
tn_enable_interrupt();
return rc;
}
TN_RETVAL tnnc_event_wait_polling (TN_EVENT_S *evf, TN_UWORD wait_pattern,
TN_UWORD wait_mode, TN_UWORD *p_flags_pattern
)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_RETVAL rc;
TN_BOOL fCond;
/* Not check parameter error
if (evf == TN_NULL || wait_pattern == 0 || p_flags_pattern == TN_NULL)
return TERR_WRONG_PARAM;
*/
if (evf->id_event != TN_ID_EVENT)
return TERR_NOEXS;
/* Check calling context - not interrupt and not user critical section */
if (tn_is_non_task_context())
return TERR_WCONTEXT;
tn_disable_interrupt();
/* If event attr is TN_EVENT_ATTR_SINGLE and another task already in event wait queue - return ERROR
without checking release condition */
if ((evf->attr & TN_EVENT_ATTR_SINGLE) && !is_queue_empty(&(evf->wait_queue)))
{
rc = TERR_ILUSE;
}
else
{
/* Get pattern coincidence flag */
if (wait_mode & TN_EVENT_WCOND_OR)
fCond = (TN_BOOL)((evf->pattern & wait_pattern) != 0);
else
fCond = (TN_BOOL)((evf->pattern & wait_pattern) == wait_pattern);
if (fCond)
{
/* Event pattern is equal asked */
*p_flags_pattern = evf->pattern;
if (evf->attr & TN_EVENT_ATTR_CLR)
evf->pattern = 0; /* Clear event flag, if TN_EVENT_ATTR_CLR parameter set */
rc = TERR_NO_ERR;
}
else
{
/* Return with TERR_TIMEOUT code */
rc = TERR_TIMEOUT;
}
}
tn_enable_interrupt();
return rc;
}
/**
*
* @param attr
*/
void tnec_task_exit (TN_UWORD attr)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_TCB_S *task;
CDLL_QUEUE_S *que;
TN_MUTEX_S *mutex;
TN_UWORD *ptr_stack;
if (tn_is_non_task_context())
return;
tn_save_sr(); /* just for PIC24/dsPIC */
tn_disable_interrupt();
while (!is_queue_empty(&(tn_curr_run_task->mutex_queue)))
{
que = queue_remove_head(&(tn_curr_run_task->mutex_queue));
mutex = get_mutex_by_mutex_queue(que);
do_unlock_mutex(mutex);
}
task = tn_curr_run_task;
task_to_non_runnable(tn_curr_run_task);
task_set_dormant_state(task);
ptr_stack = tn_stack_init(task->task_func_addr,
task->stk_start,
task->stk_size,
task->task_func_param
);
task->task_stk = ptr_stack;
if (task->activate_count > 0)
{
task->activate_count--;
task_to_runnable(task);
}
else
{
/* Alex B. - delete task only if activate counter = 0 ! */
if (attr == TN_EXIT_AND_DELETE_TASK)
{
queue_remove_entry(&(task->create_queue));
tn_created_tasks_qty--;
task->id_task = TN_ID_UNKNOWN;
}
}
tn_switch_context_exit(tn_save_status_reg); /* Exit from task with restore saved SR*/
}
//----------------------------------------------------------------------------
int tn_fmem_delete(TN_FMP * fmp)
{
TN_INTSAVE_DATA
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(fmp == NULL)
return TERR_WRONG_PARAM;
if(fmp->id_fmp != TN_ID_FSMEMORYPOOL)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
while(!is_queue_empty(&(fmp->wait_queue)))
{
tn_disable_interrupt();
//--- delete from sem wait queue
que = queue_remove_head(&(fmp->wait_queue));
task = get_task_by_tsk_queue(que);
if(task_wait_complete(task))
{
task->task_wait_rc = TERR_DLT;
tn_enable_interrupt();
tn_switch_context();
}
}
if(tn_chk_irq_disabled() == 0)
tn_disable_interrupt();
fmp->id_fmp = 0; //-- Fixed-size memory pool not exists now
tn_enable_interrupt();
return TERR_NO_ERR;
}
//----------------------------------------------------------------------------
int tn_sem_delete(TN_SEM * sem)
{
TN_INTSAVE_DATA
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(sem == NULL)
return TERR_WRONG_PARAM;
if(sem->id_sem != TN_ID_SEMAPHORE)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
while(!is_queue_empty(&(sem->wait_queue)))
{
tn_disable_interrupt();
//--- delete from the sem wait queue
que = queue_remove_head(&(sem->wait_queue));
task = get_task_by_tsk_queue(que);
if(task_wait_complete(task))
{
task->task_wait_rc = TERR_DLT;
tn_enable_interrupt();
tn_switch_context();
}
}
if(tn_chk_irq_disabled() == 0) // int enable
tn_disable_interrupt();
sem->id_sem = 0; // Semaphore not exists now
tn_enable_interrupt();
return TERR_NO_ERR;
}
/**
*
* @param sem
*
* @return TN_RETVAL
*/
TN_RETVAL tnnc_sem_signal (TN_SEM_S *sem)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_RETVAL rc;
CDLL_QUEUE_S *que;
TN_TCB_S *task;
/*
Not check parameter error
if (sem == TN_NULL || sem->max_count == 0)
return TERR_WRONG_PARAM;
*/
if (sem->id_sem != TN_ID_SEMAPHORE)
return TERR_NOEXS;
if (tn_is_non_task_context())
{
return TERR_WCONTEXT;
}
tn_disable_interrupt();
if (!(is_queue_empty(&(sem->wait_queue))))
{
que = queue_remove_head(&(sem->wait_queue));
task = get_task_by_tsk_queue(que);
if (task_wait_complete(task, TN_FALSE))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else
{
if (sem->count < sem->max_count)
{
sem->count++;
rc = TERR_NO_ERR;
}
else
{
rc = TERR_OVERFLOW;
}
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
static void tn_timer_task_func(void * par)
{
TN_INTSAVE_DATA
volatile TN_TCB * task;
volatile CDLL_QUEUE * curr_que;
//-- User application init - user's objects initial (tasks etc.) creation
tn_app_init();
//-- Enable interrupt here ( include tick int)
tn_cpu_int_enable();
//-------------------------------------------------------------------------
for(;;)
{
//------------ OS timer tick -------------------------------------
tn_disable_interrupt();
curr_que = tn_wait_timeout_list.next;
while(curr_que != &tn_wait_timeout_list)
{
task = get_task_by_timer_queque((CDLL_QUEUE*)curr_que);
if(task->tick_count != TN_WAIT_INFINITE)
{
if(task->tick_count > 0)
{
task->tick_count--;
if(task->tick_count == 0) //-- Time out expiried
{
queue_remove_entry(&(((TN_TCB*)task)->task_queue));
task_wait_complete((TN_TCB*)task);
task->task_wait_rc = TERR_TIMEOUT;
}
}
}
curr_que = curr_que->next;
}
task_curr_to_wait_action(NULL,
TSK_WAIT_REASON_SLEEP,
TN_WAIT_INFINITE);
tn_enable_interrupt();
tn_switch_context();
}
}
//----------------------------------------------------------------------------
int tn_queue_send(TN_DQUE * dque, void * data_ptr, unsigned long timeout)
{
TN_INTSAVE_DATA
int rc;
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(dque == NULL || timeout == 0)
return TERR_WRONG_PARAM;
if(dque->id_dque != TN_ID_DATAQUEUE)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
//-- there are task(s) in the data queue's wait_receive list
if(!is_queue_empty(&(dque->wait_receive_list)))
{
que = queue_remove_head(&(dque->wait_receive_list));
task = get_task_by_tsk_queue(que);
task->data_elem = data_ptr;
if(task_wait_complete(task))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else //-- the data queue's wait_receive list is empty
{
rc = dque_fifo_write(dque,data_ptr);
if(rc != TERR_NO_ERR) //-- No free entries in the data queue
{
tn_curr_run_task->data_elem = data_ptr; //-- Store data_ptr
task_curr_to_wait_action(&(dque->wait_send_list),
TSK_WAIT_REASON_DQUE_WSEND, timeout);
tn_enable_interrupt();
tn_switch_context();
return tn_curr_run_task->task_wait_rc;
}
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
int tn_event_wait_polling(TN_EVENT * evf,
unsigned int wait_pattern,
int wait_mode,
unsigned int * p_flags_pattern)
{
TN_INTSAVE_DATA
int rc;
int fCond;
#if TN_CHECK_PARAM
if(evf == NULL || wait_pattern == 0 || p_flags_pattern == NULL)
return TERR_WRONG_PARAM;
if(evf->id_event != TN_ID_EVENT)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
//-- If event attr is TN_EVENT_ATTR_SINGLE and another task already
//-- in event wait queue - return ERROR without checking release condition
if((evf->attr & TN_EVENT_ATTR_SINGLE) && !is_queue_empty(&(evf->wait_queue)))
{
rc = TERR_ILUSE;
}
else
{
//-- Check release condition
if(wait_mode & TN_EVENT_WCOND_OR) //-- any setted bit is enough for release condition
fCond = ((evf->pattern & wait_pattern) != 0);
else //-- TN_EVENT_WCOND_AND is default mode
fCond = ((evf->pattern & wait_pattern) == wait_pattern);
if(fCond)
{
*p_flags_pattern = evf->pattern;
if(evf->attr & TN_EVENT_ATTR_CLR)
evf->pattern = 0;
rc = TERR_NO_ERR;
}
else
rc = TERR_TIMEOUT;
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
// Release Semaphore Resource
//----------------------------------------------------------------------------
int tn_sem_signal(TN_SEM * sem)
{
TN_INTSAVE_DATA
int rc; //-- return code
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(sem == NULL)
return TERR_WRONG_PARAM;
if(sem->max_count == 0)
return TERR_WRONG_PARAM;
if(sem->id_sem != TN_ID_SEMAPHORE)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
if(!(is_queue_empty(&(sem->wait_queue))))
{
//--- delete from the sem wait queue
que = queue_remove_head(&(sem->wait_queue));
task = get_task_by_tsk_queue(que);
if(task_wait_complete(task))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else
{
if(sem->count < sem->max_count)
{
sem->count++;
rc = TERR_NO_ERR;
}
else
rc = TERR_OVERFLOW;
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
int tn_event_delete(TN_EVENT * evf)
{
TN_INTSAVE_DATA
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(evf == NULL)
return TERR_WRONG_PARAM;
if(evf->id_event != TN_ID_EVENT)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt(); // v.2.7 - thanks to Eugene Scopal
while(!is_queue_empty(&(evf->wait_queue)))
{
//--- delete from sem wait queue
que = queue_remove_head(&(evf->wait_queue));
task = get_task_by_tsk_queue(que);
if(task_wait_complete(task))
{
task->task_wait_rc = TERR_DLT;
tn_enable_interrupt();
tn_switch_context();
tn_disable_interrupt(); // v.2.7
}
}
evf->id_event = 0; // Event not exists now
tn_enable_interrupt();
return TERR_NO_ERR;
}
TN_SYS_TIM_T tncm_sys_time_get (void)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_SYS_TIM_T ret;
tn_save_sr();
if (tn_sys_context == TN_CONTEXT_TASK) {
/* in task now */
tn_disable_interrupt();
}
ret = tn_sys_time_count;
tn_rest_sr();
return ret;
}
//----------------------------------------------------------------------------
int tn_task_wakeup(TN_TCB * task)
{
TN_INTSAVE_DATA
int rc;
#if TN_CHECK_PARAM
if(task == NULL)
return TERR_WRONG_PARAM;
if(task->id_task != TN_ID_TASK)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
if(task->task_state == TSK_STATE_DORMANT)
{
rc = TERR_WCONTEXT;
}
else
{
if((task->task_state & TSK_STATE_WAIT) &&
task->task_wait_reason == TSK_WAIT_REASON_SLEEP)
{
if(task_wait_complete(task))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else
{ // v.2.7 - Thanks to Eugene Scopal
//-- Check for 0 - case max wakeup_count value is 1
if(task->wakeup_count == 0) //-- if here - the task is
{ //-- not in the SLEEP mode
task->wakeup_count++;
rc = TERR_NO_ERR;
}
else
rc = TERR_OVERFLOW;
}
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
int tn_event_delete(TN_EVENT * evf)
{
TN_INTSAVE_DATA
CDLL_QUEUE * que;
TN_TCB * task;
if(evf == NULL)
return TERR_WRONG_PARAM;
if(evf->id_event != TN_ID_EVENT)
return TERR_NOEXS;
TN_CHECK_NON_INT_CONTEXT
while(!is_queue_empty(&(evf->wait_queue)))
{
if(tn_chk_irq_disabled() == 0) // int enable
tn_disable_interrupt();
//--- delete from sem wait queue
que = queue_remove_head(&(evf->wait_queue));
task = get_task_by_tsk_queue(que);
if(task_wait_complete(task,FALSE))
{
task->task_wait_rc = TERR_DLT;
tn_enable_interrupt();
tn_switch_context();
}
}
if(tn_chk_irq_disabled() == 0) // int enable
tn_disable_interrupt();
evf->id_event = 0; // Event not exists now
tn_enable_interrupt();
return TERR_NO_ERR;
}
/**
*
* @param task
*
* @return TN_RETVAL
*/
TN_RETVAL tnec_task_wakeup (TN_TCB_S *task)
{
TN_UWORD tn_save_status_reg TN_UNUSED; /* for SR save */
TN_RETVAL rc;
if (task == TN_NULL)
return TERR_WRONG_PARAM;
if (task->id_task != TN_ID_TASK)
return TERR_NOEXS;
if (tn_is_non_task_context())
{
return TERR_WCONTEXT;
}
tn_disable_interrupt();
if (task->task_state == TSK_STATE_DORMANT)
{
rc = TERR_WCONTEXT;
}
else
{
if ((task->task_state & TSK_STATE_WAIT) && (task->task_wait_reason == TSK_WAIT_REASON_SLEEP))
{
if (task_wait_complete(task, TN_FALSE))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else
{
if (tn_curr_run_task->wakeup_count == 0)
{
tn_curr_run_task->wakeup_count++;
rc = TERR_NO_ERR;
}
else
rc = TERR_OVERFLOW;
}
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
// If the task is runnable, it is moved to the SUSPENDED state. If the task
// is in the WAITING state, it is moved to the WAITINGÂSUSPENDED state.
//----------------------------------------------------------------------------
int tn_task_suspend(TN_TCB * task)
{
TN_INTSAVE_DATA
int rc;
#if TN_CHECK_PARAM
if(task == NULL)
return TERR_WRONG_PARAM;
if(task->id_task != TN_ID_TASK)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
if(task->task_state & TSK_STATE_SUSPEND)
rc = TERR_OVERFLOW;
else
{
if(task->task_state == TSK_STATE_DORMANT)
rc = TERR_WSTATE;
else
{
if(task->task_state == TSK_STATE_RUNNABLE)
{
task->task_state = TSK_STATE_SUSPEND;
task_to_non_runnable(task);
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
else
{
task->task_state |= TSK_STATE_SUSPEND;
rc = TERR_NO_ERR;
}
}
}
tn_enable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
int tn_queue_send_polling(TN_DQUE * dque, void * data_ptr)
{
TN_INTSAVE_DATA
int rc;
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(dque == NULL)
return TERR_WRONG_PARAM;
if(dque->id_dque != TN_ID_DATAQUEUE)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
//-- there are task(s) in the data queue's wait_receive list
if(!is_queue_empty(&(dque->wait_receive_list)))
{
que = queue_remove_head(&(dque->wait_receive_list));
task = get_task_by_tsk_queue(que);
task->data_elem = data_ptr;
if(task_wait_complete(task))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else //-- the data queue's wait_receive list is empty
{
rc = dque_fifo_write(dque,data_ptr);
if(rc != TERR_NO_ERR) //-- No free entries in data queue
rc = TERR_TIMEOUT; //-- Just convert errorcode
}
tn_enable_interrupt();
return rc;
}