/**
* @brief Resets a @p mailbox_t object.
* @details All the waiting threads are resumed with status @p MSG_RESET and
* the queued messages are lost.
* @post The mailbox is in reset state, all operations will fail and
* return @p MSG_RESET until the mailbox is enabled again using
* @p chMBResumeX().
*
* @param[in] mbp the pointer to an initialized @p mailbox_t object
*
* @api
*/
void chMBResetI(mailbox_t *mbp) {
chDbgCheckClassI();
chDbgCheck(mbp != NULL);
mbp->wrptr = mbp->buffer;
mbp->rdptr = mbp->buffer;
mbp->cnt = (size_t)0;
mbp->reset = true;
chThdDequeueAllI(&mbp->qw, MSG_RESET);
chThdDequeueAllI(&mbp->qr, MSG_RESET);
}
/**
* @brief Resets an output queue.
* @details All the data in the output queue is erased and lost, any waiting
* thread is resumed with status @p Q_RESET.
* @note A reset operation can be used by a low level driver in order to
* obtain immediate attention from the high level layers.
*
* @param[in] oqp pointer to an @p output_queue_t structure
*
* @iclass
*/
void chOQResetI(output_queue_t *oqp) {
chDbgCheckClassI();
oqp->q_rdptr = oqp->q_wrptr = oqp->q_buffer;
oqp->q_counter = chQSizeI(oqp);
chThdDequeueAllI(&oqp->q_waiting, Q_RESET);
}
/**
* @brief Resets an input queue.
* @details All the data in the input queue is erased and lost, any waiting
* thread is resumed with status @p Q_RESET.
* @note A reset operation can be used by a low level driver in order to
* obtain immediate attention from the high level layers.
*
* @param[in] iqp pointer to an @p input_queue_t structure
*
* @iclass
*/
void chIQResetI(input_queue_t *iqp) {
chDbgCheckClassI();
iqp->q_rdptr = iqp->q_wrptr = iqp->q_buffer;
iqp->q_counter = 0;
chThdDequeueAllI(&iqp->q_waiting, Q_RESET);
}
