STATUS wdCancel
(
WDOG_ID wdId /* ID of watchdog to cancel */
)
{
int level = intLock (); /* LOCK INTERRUPTS */
if (OBJ_VERIFY (wdId, wdClassId) != OK)
{
intUnlock (level); /* UNLOCK INTERRUPTS */
return (ERROR);
}
#ifdef WV_INSTRUMENTATION
/* windview - level 1 event logging */
EVT_OBJ_1 (OBJ, wdId, wdClassId, EVENT_WDCANCEL, wdId);
#endif
if (kernelState)
{
intUnlock (level); /* UNLOCK INTERRUPTS */
workQAdd1 ((FUNCPTR)windWdCancel, (int)wdId);
}
else
{
kernelState = TRUE; /* KERNEL_ENT */
intUnlock (level); /* UNLOCK INTERRUPTS */
windWdCancel (wdId); /* cancel watchdog */
windExit (); /* KERNEL EXIT */
}
return (OK);
}
STATUS msgQEvStart
(
MSG_Q_ID msgQId, /* msg Q for which to register events */
UINT32 events, /* 32 possible events */
UINT8 options /* event-related msg Q options */
)
{
if (events == 0x0)
{
errnoSet (S_eventLib_ZERO_EVENTS);
return (ERROR);
}
if (INT_RESTRICT () != OK)
return (ERROR); /* errno set by INT_RESTRICT() */
TASK_LOCK (); /* to prevent msg Q from being deleted */
if (OBJ_VERIFY(msgQId,msgQClassId) != OK)
{
TASK_UNLOCK ();
return (ERROR); /* errno is set by OBJ_VERIFY */
}
/* TASK_UNLOCK() will be done by eventStart() */
return (eventStart ((OBJ_ID)msgQId, &msgQId->events, &msgQEvIsFree,
events, options));
}
STATUS semQFlush(
SEM_ID semId
)
{
STATUS status;
int level;
INT_LOCK(level);
if (OBJ_VERIFY (semId, semClassId) != OK)
{
INT_UNLOCK (level);
status = ERROR;
}
else
{
/* Check next object */
if (Q_FIRST(&semId->qHead) == NULL)
{
INT_UNLOCK(level);
status = OK;
}
else
{
/* Enter kernel and flush pending queue */
kernelState = TRUE;
INT_UNLOCK(level);
vmxPendQFlush(&semId->qHead);
vmxExit();
status = OK;
}
}
return status;
}
HASH_NODE *hashTblFind
(
FAST HASH_ID hashId, /* id of hash table from which to find node */
HASH_NODE *pMatchNode, /* pointer to hash node to match */
int keyCmpArg /* parameter to be passed to key comparator */
)
{
FAST HASH_NODE *pHNode;
int ix;
if (OBJ_VERIFY (hashId, hashClassId) != OK)
return (NULL); /* invalid hash node */
/* invoke hash table's hashing routine to get index into table */
ix = (* hashId->keyRtn) (hashId->elements, pMatchNode, hashId->keyArg);
/* search linked list for above hash index and return matching hash node */
pHNode = (HASH_NODE *) SLL_FIRST (&hashId->pHashTbl [ix]);
while ((pHNode != NULL) &&
!((* hashId->keyCmpRtn) (pMatchNode, pHNode, keyCmpArg)))
pHNode = (HASH_NODE *) SLL_NEXT (pHNode);
return (pHNode);
}
STATUS vmContextDestroy(
VM_CONTEXT_ID context
)
{
STATUS status;
/* Verify object class */
if (OBJ_VERIFY(context, vmContextClassId) != OK)
{
status = ERROR;
}
else
{
semTake(&context->sem, WAIT_FOREVER);
if (MMU_TRANS_TABLE_DESTROY(context->mmuTransTable) != OK)
{
status = ERROR;
}
else
{
/* Free datastructure */
objFree(vmContextClassId, context);
status = OK;
}
}
return status;
}
STATUS vmTranslate(
VM_CONTEXT_ID context,
void *vAddr,
void **pAddr
)
{
STATUS status;
/* Check if context should be current */
if (context == NULL)
{
context = vmCurrContext;
}
else
{
/* Verify object class */
if (OBJ_VERIFY(context, vmContextClassId) != OK)
{
status = ERROR;
}
else
{
status = MMU_TRANSLATE(context->mmuTransTable, vAddr, pAddr);
}
}
return status;
}
STATUS vmStateGet(
VM_CONTEXT_ID context,
void *vAddr,
unsigned *pState
)
{
STATUS status;
unsigned mmuState;
VM2MMU_STATE_TRANS *thisState;
int i;
unsigned mmuTMask;
unsigned mmuTState;
unsigned vmTState;
/* Check if context should be current */
if (context == NULL)
{
context = vmCurrContext;
}
/* Verify object class */
if (OBJ_VERIFY(context, vmContextClassId) != OK)
{
status = ERROR;
}
else
{
*pState = 0;
if (MMU_STATE_GET(
context->mmuTransTable,
vAddr,
&mmuState
) != OK)
{
status = ERROR;
}
else
{
/* Translate state */
for (i = 0; i < mmuStateTransTableSize; i++)
{
thisState = &mmuStateTransTable[i];
mmuTMask = thisState->mmuMask;
mmuTState = thisState->mmuState;
vmTState = thisState->vmState;
if ((mmuState & mmuTMask) == mmuTState)
{
*pState |= vmTState;
}
}
status = OK;
}
}
return status;
}
STATUS wdDestroy(
WDOG_ID wdId,
BOOL dealloc
)
{
STATUS status;
int level;
/* Not callable from interrupts */
if (INT_RESTRICT() != OK)
{
status = ERROR;
}
else
{
/* Lock interrupts */
INT_LOCK(level);
/* Verify object */
if (OBJ_VERIFY(wdId, wdClassId) != OK )
{
INT_UNLOCK(level);
status = ERROR;
}
else
{
/* Terminate object */
objCoreTerminate(&wdId->objCore);
/* Enter kernel */
kernelState = TRUE;
/* Unlock interrupts */
INT_UNLOCK(level);
/* Cancel watchdog timer */
vmxWdCancel(wdId);
wdId->status = WDOG_DEAD;
taskSafe();
/* Exit kernel */
vmxExit();
/* Deallocate if requested */
if (dealloc == TRUE)
{
objFree(wdClassId, wdId);
}
taskUnsafe();
status = OK;
}
}
return status;
}
int fileno
(
FILE * fp /* stream */
)
{
if (OBJ_VERIFY (fp, fpClassId) != OK)
return (ERROR);
return (__sfileno(fp));
}
STATUS symTblLock
(
SYMTAB_ID symTblId /* ID of symbol table to lock */
)
{
if (OBJ_VERIFY (symTblId, symTblClassId) != OK)
return (ERROR); /* invalid symbol table ID */
semTake (&symTblId->symMutex, WAIT_FOREVER);
return (OK);
}
STATUS symTblUnlock
(
SYMTAB_ID symTblId /* ID of symbol table to unlock */
)
{
if (OBJ_VERIFY (symTblId, symTblClassId) != OK)
return (ERROR); /* invalid symbol table ID */
semGive (&symTblId->symMutex); /* release mutual exclusion */
return (OK);
}
/*lint --e{78, 527,752 } */
void semQueueGiveDefer
(
SEM_ID semId /* semaphore ID to give */
)
{
#ifdef _WRS_CONFIG_SMP
/* For SMP, we don't know if semId is still valid at this point */
if (OBJ_VERIFY (semId, semClassId) != OK)
return;
#endif /* _WRS_CONFIG_SMP */
if (Q_FIRST (&semId->qHead) == NULL) /* anyone blocked? */
{
/*lint -save -e52*/
semId->semCount++; /* give semaphore */
/*lint -restore +e52*/
/* sem is free, send events if registered */
if (semId->events.taskId != (int)NULL)
{
/*
* We will be here only if semId->events.taskId is non-null (i.e.
* the event library has been configured). Hence we can eliminate
* the null-check for _func_eventRsrcSend.
*/
/*lint -save -e119 -e533 */
if ((*_func_eventRsrcSend) (semId->events.taskId,
semId->events.registered) != OK)
{
semId->events.taskId = (int)NULL;
return;
}
/*lint -restore*/
if ((semId->events.options & EVENTS_SEND_ONCE) == EVENTS_SEND_ONCE)
semId->events.taskId = (int)NULL;
}
}
else
{
/*lint -save -e516*/
#ifdef _WRS_CONFIG_SV_INSTRUMENTATION
/* system viewer - level 2 event logging */
EVT_TASK_1 (EVENT_OBJ_SEMGIVE, semId);
#endif /* _WRS_CONFIG_SV_INSTRUMENTATION */
/*lint -restore +e516*/
windPendQGet (&semId->qHead); /* unblock a task */
}
}
long ftell
(
FAST FILE * fp /* stream */
)
{
FAST fpos_t pos;
if (OBJ_VERIFY (fp, fpClassId) != OK)
return (ERROR);
/*
* Find offset of underlying I/O object, then
* adjust for buffered bytes.
*/
if (fp->_flags & __SOFF)
pos = fp->_offset;
else
{
pos = __sseek (fp, (fpos_t)0, SEEK_CUR);
if (pos == -1L)
return (pos);
}
if (fp->_flags & __SRD)
{
/*
* Reading. Any unread characters (including
* those from ungetc) cause the position to be
* smaller than that in the underlying object.
*/
pos -= fp->_r;
if (HASUB(fp))
pos -= fp->_ur;
}
else if (fp->_flags & __SWR && fp->_p != NULL)
{
/*
* Writing. Any buffered characters cause the
* position to be greater than that in the
* underlying object.
*/
pos += fp->_p - fp->_bf._base;
}
return (pos);
}
STATUS wdStart
(
WDOG_ID wdId, /* watchdog ID */
int delay, /* delay count, in ticks */
FUNCPTR pRoutine, /* routine to call on time-out */
int parameter /* parameter with which to call routine */
)
{
int level = intLock (); /* LOCK INTERRUPTS */
if (OBJ_VERIFY (wdId, wdClassId) != OK)
{
intUnlock (level); /* UNLOCK INTERRUPTS */
return (ERROR);
}
#ifdef WV_INSTRUMENTATION
/* windview - level 1 event logging */
EVT_OBJ_2 (OBJ, wdId, wdClassId, EVENT_WDSTART, wdId, delay);
#endif
if (kernelState) /* already in kernel? */
{
wdId->deferStartCnt ++; /* bump the start count */
wdId->wdParameter = parameter; /* update w/ new parameter */
wdId->wdRoutine = pRoutine; /* update w/ new routine */
intUnlock (level); /* UNLOCK INTERRUPTS */
workQAdd2 (windWdStart, (int)wdId, delay); /* defer the wdStart */
}
else
{
wdId->deferStartCnt = 1; /* initialize start count */
wdId->wdParameter = parameter; /* update w/ new parameter */
wdId->wdRoutine = pRoutine; /* update w/ new routine */
kernelState = TRUE; /* KERNEL ENTER */
intUnlock (level); /* UNLOCK INTERRUPTS */
if (windWdStart (wdId, delay) != OK) /* start the watchdog */
{
windExit (); /* KERNEL EXIT */
return (ERROR);
}
windExit (); /* KERNEL EXIT */
}
return (OK);
}
int getc
(
FILE * fp /* input stream */
)
{
int ch;
if (OBJ_VERIFY (fp, fpClassId) != OK)
return (EOF);
if ((ch = __sgetc(fp)) == EOF)
fp->_flags |= __SEOF;
return (ch);
}
/*lint --e{533 } */
STATUS osl_waitqueue_wakeup
(
wait_queue_head_t semId /* semaphore ID to give */
)
{
#ifndef _WRS_CONFIG_SMP
int level;
#endif /* !_WRS_CONFIG_SMP */
Q_NODE * pQNode = NULL;
#ifdef _WRS_CONFIG_SMP
/* lock has been taken in the case of ISR before here */
if (!_WRS_INT_CONTEXT ())
#endif /* _WRS_CONFIG_SMP */
OBJ_LOCK (semClassId, level);
if (OBJ_VERIFY (semId, semClassId) != OK)
{
OBJ_UNLOCK (semClassId, level);
return (ERROR);
}
pQNode = Q_EACH(&semId->qHead, semQueueEventCheck, TRUE);
if (pQNode == NULL)
{
OBJ_UNLOCK (semClassId, level);/*lint !e2 */
return (OK);
}
else
{
/*lint -save -e10*/
KERNEL_LOCK_OBJ_UNLOCK (semClassId, level);/*lint !e2 */
/*lint -restore +e10*/
/*lint -save -e722*/
#ifdef _WRS_CONFIG_SV_INSTRUMENTATION
/* system viewer - level 2 event logging */
EVT_TASK_1 (EVENT_OBJ_SEMGIVE, semId);/*lint !e681 */
#endif /* _WRS_CONFIG_SV_INSTRUMENTATION */
/*lint -restore +e722*/
semQueuePendQGet(&semId->qHead, pQNode); /* unblock a task */
KERNEL_UNLOCK ();
return (OK);
}
}
STATUS hashTblDestroy
(
HASH_ID hashId, /* id of hash table to destroy */
BOOL dealloc /* deallocate associated memory */
)
{
if (OBJ_VERIFY (hashId, hashClassId) != OK)
return (ERROR); /* invalid hash id */
objCoreTerminate (&hashId->objCore); /* terminate core */
if (dealloc)
return (objFree (hashClassId, (char *) hashId));
return (OK);
}
STATUS rBuffInfoGet
(
BUFFER_ID buffId, /* generic buffer identifier */
RBUFF_INFO_TYPE *pRBuffInfo /* rBuff info structure */
)
{
RBUFF_ID rBuff; /* access to private members of this rBuff */
/* Get access to this buffer's private information. */
rBuff = (RBUFF_ID) buffId;
/* Check validity of the arguments. */
if (rBuff == NULL)
{
printf ("No rBuffId specified.\n");
return (ERROR);
}
if (OBJ_VERIFY (rBuff, rBuffClassId) != OK)
return (ERROR);
RBUFF_LOCK (rBuff);
pRBuffInfo->srcPart = rBuff->info.srcPart;
pRBuffInfo->options = rBuff->info.options;
pRBuffInfo->buffSize = rBuff->info.buffSize;
pRBuffInfo->currBuffs = rBuff->info.currBuffs;
pRBuffInfo->minBuffs = rBuff->info.minBuffs;
pRBuffInfo->maxBuffs = rBuff->info.maxBuffs;
pRBuffInfo->maxBuffsActual = rBuff->info.maxBuffsActual;
pRBuffInfo->emptyBuffs = rBuff->info.emptyBuffs;
pRBuffInfo->timesExtended = rBuff->info.timesExtended;
pRBuffInfo->threshold = rBuff->info.threshold;
pRBuffInfo->timesXThreshold = rBuff->info.timesXThreshold;
pRBuffInfo->dataContent = rBuff->info.dataContent;
pRBuffInfo->writesSinceReset = rBuff->info.writesSinceReset;
pRBuffInfo->writesSinceReset = rBuff->info.readsSinceReset;
pRBuffInfo->bytesWritten = rBuff->info.bytesWritten;
pRBuffInfo->bytesRead = rBuff->info.bytesRead;
RBUFF_UNLOCK(rBuff);
return (OK);
}
STATUS wdCancel(
WDOG_ID wdId
)
{
STATUS status;
int level;
/* Lock interrupts */
INT_LOCK(level);
/* Verify object */
if (OBJ_VERIFY(wdId, wdClassId) != OK)
{
INT_UNLOCK(level);
status = ERROR;
}
else
{
/* If in kernel mode */
if (kernelState == TRUE)
{
/* Unlock interrupts */
INT_UNLOCK(level);
/* Add to kernel queue */
workQAdd1((FUNCPTR) vmxWdCancel, (ARG) wdId);
status = OK;
}
else
{
/* Enter kernel */
kernelState = TRUE;
/* Unlock interrupts */
INT_UNLOCK(level);
vmxWdCancel(wdId);
/* Exit kernel */
vmxExit();
status = OK;
}
}
return status;
}
SYMTAB_ID posixNameTblInit
(
int posixTblHashSize
)
{
/* This check is needed because symLibInit is not reentrant */
if (OBJ_VERIFY (&symTblClassId->objCore, classClassId) != OK)
symLibInit (); /* initialize symbol table package */
if (posixTblHashSize == 0)
posixTblHashSize = POSIX_TBL_HASH_SIZE_LOG2;
posixNameTbl = symTblCreate (posixTblHashSize, FALSE, memSysPartId);
return (posixNameTbl);
}
STATUS semDestroy(
SEM_ID semId,
BOOL deallocate
)
{
STATUS status;
int level;
if (INT_RESTRICT() != OK)
{
errnoSet(S_intLib_NOT_ISR_CALLABLE);
status = ERROR;
}
else
{
INT_LOCK(level);
if (OBJ_VERIFY(semId, semClassId) != OK)
{
INT_UNLOCK(level);
status = ERROR;
}
else
{
objCoreTerminate(&semId->objCore);
/* Delete it */
kernelState = TRUE;
INT_UNLOCK(level);
vmxSemDelete(semId);
taskSafe();
vmxExit();
if (deallocate == TRUE)
{
objFree(semClassId, semId);
}
taskUnsafe();
status = OK;
}
}
return status;
}
STATUS wdDestroy
(
WDOG_ID wdId, /* ID of watchdog to terminate */
BOOL dealloc /* dealloc associated memory */
)
{
int level;
if (INT_RESTRICT () != OK) /* restrict isr use */
return (ERROR);
level = intLock (); /* LOCK INTERRUPTS */
if (OBJ_VERIFY (wdId, wdClassId) != OK) /* validate watchdog ID */
{
intUnlock (level); /* UNLOCK INTERRUPTS */
return (ERROR);
}
#ifdef WV_INSTRUMENTATION
/* windview - level 1 event logging */
EVT_OBJ_1 (OBJ, wdId, wdClassId, EVENT_WDDELETE, wdId);
#endif
objCoreTerminate (&wdId->objCore); /* invalidate watchdog */
kernelState = TRUE; /* KERNEL ENTER */
intUnlock (level); /* UNLOCK INTERRUPTS */
windWdCancel (wdId); /* cancel watchdog */
wdId->status = WDOG_DEAD; /* dead dog */
TASK_SAFE (); /* TASK SAFE */
windExit (); /* EXIT KERNEL */
if (dealloc)
objFree (wdClassId, (char *) wdId); /* deallocate watchdog */
TASK_UNSAFE (); /* TASK UNSAFE */
return (OK);
}
HASH_NODE *hashTblEach
(
HASH_ID hashId, /* hash table to call routine for */
FUNCPTR routine, /* the routine to call for each hash node */
int routineArg /* arbitrary user-supplied argument */
)
{
FAST int ix;
HASH_NODE *pNode = NULL;
if (OBJ_VERIFY (hashId, hashClassId) != OK)
return (NULL); /* invalid hash id */
for (ix = 0; (ix < hashId->elements) && (pNode == NULL); ix++)
pNode = (HASH_NODE *)sllEach (&hashId->pHashTbl[ix],routine,routineArg);
return (pNode); /* return node we ended with */
}
LOCAL STATUS semBGive(
SEM_ID semId
)
{
STATUS status;
int level;
/* Lock interrupts */
INT_LOCK(level);
/* Verify class */
if (OBJ_VERIFY(semId, semClassId) != OK)
{
INT_UNLOCK(level);
status = ERROR;
}
else
{
/* Get next listening task from queue */
SEM_OWNER_SET(semId, Q_FIRST(&semId->qHead));
/* Check if no more tasks are waiting for this semaphore */
if (SEM_OWNER_GET(semId) == NULL)
{
INT_UNLOCK(level);
status = OK;
}
else
{
/* Enter kernel mode */
kernelState = TRUE;
INT_UNLOCK(level);
/* Unblock next task waiting */
vmxPendQGet(&semId->qHead);
/* Exit kernel mode */
vmxExit();
status = OK;
}
}
return status;
}
int fputs
(
const char * s, /* string */
FILE * fp /* stream to write to */
)
{
struct __suio uio;
struct __siov iov;
if (OBJ_VERIFY (fp, fpClassId) != OK)
return (EOF);
iov.iov_base = (void *)s;
iov.iov_len = uio.uio_resid = strlen (s);
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
return (__sfvwrite (fp, &uio));
}
LOCAL STATUS semFlushDefer(
SEM_ID semId
)
{
STATUS status;
/* Verify object */
if (OBJ_VERIFY(semId, semClassId) != OK)
{
status = ERROR;
}
else
{
/* A method is guaranteed to exist */
workQAdd1(semFlushDeferTable[semId->semType & SEM_TYPE_MASK], semId);
status = OK;
}
return status;
}
int __sflush
(
FAST FILE *fp
)
{
FAST unsigned char *p;
FAST int n;
FAST int t;
if (OBJ_VERIFY (fp, fpClassId) != OK)
return (EOF);
t = fp->_flags;
if ((t & __SWR) == 0)
return (0);
if ((p = fp->_bf._base) == NULL)
return (0);
n = fp->_p - p; /* write this much */
/* Set these immediately to avoid problems with longjmp and to allow
* exchange buffering (via setvbuf) in user write function.
*/
fp->_p = p;
fp->_w = (t & (__SLBF|__SNBF)) ? (0) : (fp->_bf._size);
for (; n > 0; n -= t, p += t)
{
t = __swrite (fp, (char *)p, n);
if (t <= 0)
{
fp->_flags |= __SERR;
return (EOF);
}
}
return (0);
}
int fprintf
(
FILE * fp, /* stream to write to */
const char * fmt, /* format string */
... /* optional arguments to format string */
)
{
int ret;
va_list vaList;
if (OBJ_VERIFY (fp, fpClassId) != OK)
return (ERROR);
va_start (vaList, fmt);
ret = vfprintf (fp, fmt, vaList);
va_end (vaList);
return (ret);
}
STATUS hashTblPut
(
HASH_ID hashId, /* id of hash table in which to put node */
HASH_NODE *pHashNode /* pointer to hash node to put in hash table */
)
{
int index;
if (OBJ_VERIFY (hashId, hashClassId) != OK)
return (ERROR); /* invalid hash id */
/* invoke hash table's hashing routine to get index into table */
index = (* hashId->keyRtn) (hashId->elements, pHashNode, hashId->keyArg);
/* add hash node to head of linked list */
sllPutAtHead (&hashId->pHashTbl [index], pHashNode);
return (OK);
}
STATUS vmCurrentSet(
VM_CONTEXT_ID context
)
{
STATUS status;
/* Verify object class */
if (OBJ_VERIFY(context, vmContextClassId) != OK)
{
status = ERROR;
}
else
{
/* Set as current */
vmCurrContext = context;
MMU_CURRENT_SET(context->mmuTransTable);
status = OK;
}
return status;
}