//----------------------------------------------------------------------------
int tn_queue_ireceive(TN_DQUE * dque,void ** data_ptr)
{
TN_INTSAVE_DATA_INT
int rc;
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(dque == NULL || data_ptr == NULL)
return TERR_WRONG_PARAM;
if(dque->id_dque != TN_ID_DATAQUEUE)
return TERR_NOEXS;
#endif
TN_CHECK_INT_CONTEXT
tn_idisable_interrupt();
rc = dque_fifo_read(dque,data_ptr);
if(rc == TERR_NO_ERR) //-- There was entry(s) in data queue
{
if(!is_queue_empty(&(dque->wait_send_list)))
{
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
dque_fifo_write(dque,task->data_elem); //-- Put to data FIFO
if(task_wait_complete(task))
{
tn_ienable_interrupt();
return TERR_NO_ERR;
}
}
}
else //-- data FIFO is empty
{
if(!is_queue_empty(&(dque->wait_send_list)))
{
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
*data_ptr = task->data_elem; //-- Return to caller
if(task_wait_complete(task))
{
tn_ienable_interrupt();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else
{
rc = TERR_TIMEOUT;
}
}
tn_ienable_interrupt();
return rc;
}
/**
*
* @param dque
* @param data_ptr
*
* @return TN_RETVAL
*/
TN_RETVAL tnnc_queue_ireceive (TN_DQUE_S *dque, void **data_ptr)
{
TN_UWORD tn_save_status_reg TN_UNUSED;
TN_RETVAL rc;
CDLL_QUEUE_S *que;
TN_TCB_S *task;
/*
Not check parameter error
if (dque == TN_NULL || data_ptr == TN_NULL)
return TERR_WRONG_PARAM;
*/
if (dque->id_dque != TN_ID_DATAQUEUE)
return TERR_NOEXS;
if (tn_is_non_sys_int_context())
{
return TERR_WCONTEXT;
}
tn_idisable_interrupt();
rc = dque_fifo_read(dque,data_ptr);
if (rc == TERR_NO_ERR)
{
if (!is_queue_empty(&(dque->wait_send_list)))
{
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
dque_fifo_write(dque,task->data_elem);
if (task_wait_complete(task, TN_FALSE))
{
tn_context_switch_request = TN_TRUE;
tn_ienable_interrupt();
return TERR_NO_ERR;
}
}
}
else
{
if (!is_queue_empty(&(dque->wait_send_list)))
{
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
*data_ptr = task->data_elem;
if (task_wait_complete(task, TN_FALSE))
{
tn_context_switch_request = TN_TRUE;
tn_ienable_interrupt();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else
{
rc = TERR_TIMEOUT;
}
}
tn_ienable_interrupt();
return rc;
}
//----------------------------------------------------------------------------
int tn_queue_receive(TN_DQUE * dque,void ** data_ptr,unsigned long timeout)
{
TN_INTSAVE_DATA
int rc; //-- return code
CDLL_QUEUE * que;
TN_TCB * task;
#if TN_CHECK_PARAM
if(dque == NULL || timeout == 0 || data_ptr == NULL)
return TERR_WRONG_PARAM;
if(dque->id_dque != TN_ID_DATAQUEUE)
return TERR_NOEXS;
#endif
TN_CHECK_NON_INT_CONTEXT
tn_disable_interrupt();
rc = dque_fifo_read(dque,data_ptr);
if(rc == TERR_NO_ERR) //-- There was entry(s) in data queue
{
if(!is_queue_empty(&(dque->wait_send_list)))
{
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
dque_fifo_write(dque,task->data_elem); //-- Put to data FIFO
if(task_wait_complete(task))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
}
}
else //-- data FIFO is empty
{
if(!is_queue_empty(&(dque->wait_send_list)))
{
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
*data_ptr = task->data_elem; //-- Return to caller
if(task_wait_complete(task))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else //-- wait_send_list is empty
{
task_curr_to_wait_action(&(dque->wait_receive_list),
TSK_WAIT_REASON_DQUE_WRECEIVE,timeout);
tn_enable_interrupt();
tn_switch_context();
//-- When returns to this point, in the data_elem have to be valid value
*data_ptr = tn_curr_run_task->data_elem; //-- Return to caller
return tn_curr_run_task->task_wait_rc;
}
}
tn_enable_interrupt();
return rc;
}
/**
*
* @param dque
* @param data_ptr
* @param timeout
*
* @return TN_RETVAL
*/
TN_RETVAL tnnc_queue_receive (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 || data_ptr == TN_NULL)
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();
rc = dque_fifo_read(dque,data_ptr);
if (rc == TERR_NO_ERR)
{
if (!is_queue_empty(&(dque->wait_send_list)))
{
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
dque_fifo_write(dque,task->data_elem);
if (task_wait_complete(task, TN_FALSE))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
}
}
else
{
if (!is_queue_empty(&(dque->wait_send_list)))
{
que = queue_remove_head(&(dque->wait_send_list));
task = get_task_by_tsk_queue(que);
*data_ptr = task->data_elem;
if (task_wait_complete(task, TN_FALSE))
{
tn_enable_interrupt();
tn_switch_context();
return TERR_NO_ERR;
}
rc = TERR_NO_ERR;
}
else
{
task_curr_to_wait_action(&(dque->wait_receive_list), TSK_WAIT_REASON_DQUE_WRECEIVE, timeout);
tn_enable_interrupt();
tn_switch_context();
/* When return to this point,in data_elem have to be valid value */
*data_ptr = tn_curr_run_task->data_elem;
return tn_curr_run_task->task_wait_rc;
}
}
tn_enable_interrupt();
return rc;
}
