void OS_QClr (OS_Q *p_q)
{
(void)OS_MsgQFreeAll(&p_q->MsgQ); /* Return all OS_MSGs to the free list */
p_q->Type = OS_OBJ_TYPE_NONE; /* Mark the data structure as a NONE */
p_q->NamePtr = (CPU_CHAR *)((void *)"?Q");
OS_MsgQInit(&p_q->MsgQ, /* Initialize the list of OS_MSGs */
0u);
OS_PendListInit(&p_q->PendList); /* Initialize the waiting list */
}
OS_MSG_QTY OSQFlush (OS_Q *p_q,
OS_ERR *p_err)
{
OS_MSG_QTY entries;
CPU_SR_ALLOC();
#ifdef OS_SAFETY_CRITICAL
if (p_err == (OS_ERR *)0) {
OS_SAFETY_CRITICAL_EXCEPTION();
return ((OS_MSG_QTY)0);
}
#endif
#if OS_CFG_CALLED_FROM_ISR_CHK_EN > 0u
if (OSIntNestingCtr > (OS_NESTING_CTR)0) { /* Can't flush a message queue from an ISR */
*p_err = OS_ERR_FLUSH_ISR;
return ((OS_MSG_QTY)0);
}
#endif
#if OS_CFG_ARG_CHK_EN > 0u
if (p_q == (OS_Q *)0) { /* Validate arguments */
*p_err = OS_ERR_OBJ_PTR_NULL;
return ((OS_MSG_QTY)0);
}
#endif
#if OS_CFG_OBJ_TYPE_CHK_EN > 0u
if (p_q->Type != OS_OBJ_TYPE_Q) { /* Make sure message queue was created */
*p_err = OS_ERR_OBJ_TYPE;
return ((OS_MSG_QTY)0);
}
#endif
OS_CRITICAL_ENTER();
entries = OS_MsgQFreeAll(&p_q->MsgQ); /* Return all OS_MSGs to the OS_MSG pool */
OS_CRITICAL_EXIT();
*p_err = OS_ERR_NONE;
return ((OS_MSG_QTY)entries);
}
