STATUS msgQInit(FAST MSG_Q* pMsgQ, int maxMsgs, int maxMsgLength, int options, void* pMsgPool)
{
FAST int nodeSize = MSG_NODE_SIZE(maxMsgLength);
FAST int ix;
FAST QUEUE_ID msgQType;
if ((!msgQLibInstalled) && (msgQLibInit () != OK))
{
return (ERROR); /* package init problem */
}
memset((char*)pMsgQ, 0, sizeof(*pMsgQ));
switch(options & MSG_Q_TYPE_MASK)
{
case MSG_Q_FIFO:
msgQType = Q_FIFO;
break;
case MSG_Q_PRIORITY:
msgQType = Q_PRI_LIST;
break;
default:
msgQType = Q_FIFO;
break;
}
if((qInit(&pMsgQ->msgQ, qJobClassId, msgQType, 2,3,4,5) != OK) ||
(qInit(&pMsgQ->freeQ, qJobClassId, msgQType, 2,3,4,5) != OK))
{
return (ERROR);
}
for(ix = 0; ix < maxMsgs; ix++)
{
qJobPut(pMsgQ, &pMsgQ->freeQ, (Q_JOB_NODE*)pMsgPool, Q_JOB_PRI_DONT_CARE);
pMsgPool = (void*)((char*)pMsgPool + nodeSize);
}
/*printf("pMsgQ->freeQ.first:0x%x\n", pMsgQ->freeQ.first);*/
pMsgQ->options = options;
pMsgQ->maxMsgs = maxMsgs;
pMsgQ->maxMsgLength = maxMsgLength;
objCoreInit(&pMsgQ->objCore, msgQClassId);
return (OK);
}
void usrKernelCoreInit (void)
{
eventLibInit (); /* VxWorks events */
semDeleteLibInit (); /* semaphore deletion routines */
/* binary semaphores */
/* counting semaphores */
/* reader/writer semaphores */
semOpenInit (); /* open/close/unlink semaphore modules */
msgQLibInit (); /* message queues */
msgQOpenInit (); /* open/close/unlink message queue modules */
wdLibInit (); /* watchdog timers */
taskOpenInit (); /* open/close/unlink task modules */
taskHookInit (); /* user callouts on task creation/deletion/context switch */
/* binary semaphore creation routine */
/* counting semaphore creation routine */
/* reader/writer semaphore creation routine */
taskCreateLibInit (); /* Capability to dynamically instantiate and delete tasks */
msgQCreateLibInit (); /* message queue creation and deletion library */
wdCreateLibInit (); /* watchdog timers creation and deletion library */
wdbTaskHookInit (); /* task hooks debug support */
}
MSG_Q_ID msgQCreate(int maxMsgs, int maxMsgLength, int options)
{
MSG_Q_ID msgQId;
void * pPool; /* pointer to memory for messages */
UINT size = (UINT) maxMsgs * MSG_NODE_SIZE (maxMsgLength);
/* TODO restrict ISR from calling */
if ((!msgQLibInstalled) && (msgQLibInit () != OK))
return (NULL); /* package init problem */
if ((msgQId = (MSG_Q_ID)objAllocExtra (msgQClassId, size, &pPool)) == NULL)
return (NULL);
if (msgQInit (msgQId, maxMsgs, maxMsgLength, options, pPool) != OK)
{
objFree (msgQClassId, (char *) msgQId);
return (NULL);
}
return ((MSG_Q_ID) msgQId);
}
