struct NaClRefCount *NaClRefCountRef(struct NaClRefCount *nrcp) {
NaClLog(4, "NaClRefCountRef(0x%08"NACL_PRIxPTR").\n",
(uintptr_t) nrcp);
NaClFastMutexLock(&nrcp->mu);
if (0 == ++nrcp->ref_count) {
NaClLog(LOG_FATAL, "NaClRefCountRef integer overflow\n");
}
NaClFastMutexUnlock(&nrcp->mu);
return nrcp;
}
void NaClRefCountUnref(struct NaClRefCount *nrcp) {
int destroy;
NaClLog(4, "NaClRefCountUnref(0x%08"NACL_PRIxPTR").\n",
(uintptr_t) nrcp);
NaClFastMutexLock(&nrcp->mu);
if (0 == nrcp->ref_count) {
NaClLog(LOG_FATAL,
("NaClRefCountUnref on 0x%08"NACL_PRIxPTR
", refcount already zero!\n"),
(uintptr_t) nrcp);
}
destroy = (0 == --nrcp->ref_count);
NaClFastMutexUnlock(&nrcp->mu);
if (destroy) {
(*nrcp->vtbl->Dtor)(nrcp);
free(nrcp);
}
}
int32_t NaClSysClose(struct NaClAppThread *natp,
int d) {
struct NaClApp *nap = natp->nap;
int retval = -NACL_ABI_EBADF;
struct NaClDesc *ndp;
NaClLog(3, "Entered NaClSysClose(0x%08"NACL_PRIxPTR", %d)\n",
(uintptr_t) natp, d);
NaClFastMutexLock(&nap->desc_mu);
ndp = NaClAppGetDescMu(nap, d);
if (NULL != ndp) {
NaClAppSetDescMu(nap, d, NULL); /* Unref the desc_tbl */
}
NaClFastMutexUnlock(&nap->desc_mu);
NaClLog(5, "Invoking Close virtual function of object 0x%08"NACL_PRIxPTR"\n",
(uintptr_t) ndp);
if (NULL != ndp) {
NaClDescUnref(ndp);
retval = 0;
}
return retval;
}
