STATUS semQueueInit
(
SEMAPHORE * pSemaphore, /* pointer to semaphore to init */
int options, /* semaphore options */
int initialCount /* initial count */
)
{
if ((options & ~(SEM_CNT_OPTIONS_MASK)) != 0)
{
/* coverity[NULL_RETURNS] */
errno = S_semLib_INVALID_OPTION;
return (ERROR);
}
if (initialCount < 0)
{
/* coverity[NULL_RETURNS] */
errno = S_semLib_INVALID_INITIAL_COUNT;
return (ERROR);
}
if (semQInit (pSemaphore, options) != OK) /* initialize queue */
return (ERROR);
pSemaphore->semCount = (unsigned int)initialCount; /* initialize count */
pSemaphore->recurse = 0; /* no recursive takes */
pSemaphore->options = options; /* stow away options *//*lint !e734*/
pSemaphore->semType = SEM_TYPE_COUNTING; /* type is counting */
/* initialize the events structure */
pSemaphore->events.taskId = (int)NULL;
pSemaphore->events.registered = 0x0;
pSemaphore->events.options = 0x0;
#ifdef _WRS_CONFIG_OBJECT_LIB
/* initialize the semaphore object core information */
objCoreInit (&pSemaphore->objCore, semClassId);
#else
/*
* Make the pObjClass point to a unique class structure. The class
* structure itself is uninitialized without objLib being present.
* By having a unique value, it is ensured that all semaphores have
* the same unique pObjClass value.
*/
pSemaphore->objCore.pObjClass = semClassId;
#endif /* _WRS_CONFIG_OBJECT_LIB */
return (OK);
}
STATUS semBInit(SEMAPHORE* pSemaphore, int options, SEM_B_STATE initialState)
{
if((!semBLibInstalled)&&(OK!=semBLibInit()))
{
return (ERROR);
}
if(OK != semQInit(pSemaphore, options))
{
return (ERROR);
}
return semBCoreInit(pSemaphore, options, initialState);
}
STATUS semBInit(
SEM_ID semId,
int options,
SEM_B_STATE state
)
{
STATUS status;
/* Check if lib is installed */
if (semBLibInstalled != TRUE)
{
errnoSet(S_semLib_NOT_INSTALLED);
status = ERROR;
}
else
{
if (options & SEM_DELETE_SAFE)
{
errnoSet(S_semLib_INVALID_OPTION);
status = ERROR;
}
else
{
/* Initialize semaphore queue */
if (semQInit(&semId->qHead, options) != OK)
{
status = ERROR;
}
else
{
/* Initialize semaphore queue */
if (semBCoreInit(semId, options, state) != OK)
{
status = ERROR;
}
else
{
status = OK;
}
}
}
}
return status;
}
