IP_FASTTEXT IP_PUBLIC void
ipcom_spinlock_lock(Ipcom_spinlock sl_handle)
{
#ifdef IPCOM_USE_SMP
Ipcom_vxworks_spinlock_t *sl = (Ipcom_vxworks_spinlock_t*) sl_handle;
#ifdef IPCOM_SPINLOCK_BUSY_PERSIST
int i;
atomicVal_t count;
try_again:
if (vxCas(&sl->count, 1, 0))
goto got_it;
for (i = IPCOM_SPINLOCK_BUSY_PERSIST; i > 0; --i)
{
count = vxAtomicGet(&sl->count);
if (count < 0)
break;
if (count == 1)
goto try_again;
}
#endif /* IPCOM_SPINLOCK_BUSY_PERSIST */
if (vxAtomicDec(&sl->count) <= 0)
/* Contention for this lock, let's sleep until the lock gets
available */
semTake(sl->sem, WAIT_FOREVER);
else
{
#ifdef IPCOM_SPINLOCK_BUSY_PERSIST
got_it:
#endif
/* prevent load/store re-ordering beyond this point */
VX_MEM_BARRIER_RW();
}
#else
IPCOM_UNUSED_ARG(sl_handle);
ip_assert(sl_handle == IPCOM_SPINLOCK_TAG);
taskLock();
#endif
}
void
os_osExit (
void)
{
os_uint32 initCount;
#ifndef NDEBUG
OS_REPORT(OS_INFO, "os__reallocdoublecopycount", 0, "count=%d", vxAtomicGet(&os__reallocdoublecopycount));
#endif
initCount = pa_dec32_nv(&_ospl_osInitCount);
if (initCount == 0) {
os_sharedMemoryExit();
os_reportExit();
os_threadModuleExit();
} else if ((initCount + 1) < initCount){
/* The 0 boundary is passed, so os_osExit is called more often than
* os_osInit. Therefore undo decrement as nothing happened and warn. */
initCount = pa_inc32_nv(&_ospl_osInitCount);
OS_REPORT(OS_WARNING, "os_osExit", 1, "OS-layer not initialized");
/* Fail in case of DEV, as it is incorrect API usage */
assert(0);
}
return;
}
