void osi_Sleep(LONG_PTR sleepVal)
{
CRITICAL_SECTION *csp;
/* may as well save some code by using SleepSched again */
csp = &osi_baseAtomicCS[0];
EnterCriticalSection(csp);
osi_SleepSpin(sleepVal, csp);
}
void osi_SleepR(LONG_PTR sleepVal, struct osi_rwlock *lockp)
{
long i;
CRITICAL_SECTION *csp;
osi_queue_t * lockRefH, *lockRefT;
osi_lock_ref_t *lockRefp;
DWORD tid = thrd_Current();
if ((i = lockp->type) != 0) {
if (i >= 0 && i < OSI_NLOCKTYPES)
(osi_lockOps[i]->SleepRProc)(sleepVal, lockp);
return;
}
/* otherwise we're the fast base type */
csp = &osi_baseAtomicCS[lockp->atomicIndex];
EnterCriticalSection(csp);
if (lockOrderValidation && lockp->level != 0) {
lockRefH = (osi_queue_t *)TlsGetValue(tls_LockRefH);
lockRefT = (osi_queue_t *)TlsGetValue(tls_LockRefT);
for (lockRefp = (osi_lock_ref_t *)lockRefH ; lockRefp; lockRefp = (osi_lock_ref_t *)osi_QNext(&lockRefp->q)) {
if (lockRefp->type == OSI_LOCK_RW && lockRefp->rw == lockp) {
osi_QRemoveHT(&lockRefH, &lockRefT, &lockRefp->q);
lock_FreeLockRef(lockRefp);
break;
}
}
TlsSetValue(tls_LockRefH, lockRefH);
TlsSetValue(tls_LockRefT, lockRefT);
}
osi_assertx(lockp->readers > 0, "osi_SleepR: not held");
for ( i=0; i < lockp->readers; i++) {
if ( lockp->tid[i] == tid ) {
for ( ; i < lockp->readers - 1; i++)
lockp->tid[i] = lockp->tid[i+1];
lockp->tid[i] = 0;
break;
}
}
/* XXX better to get the list of things to wakeup from TSignalForMLs, and
* then do the wakeup after SleepSpin releases the low-level mutex.
*/
if (--(lockp->readers) == 0 && lockp->waiters) {
osi_TSignalForMLs(&lockp->d.turn, 0, NULL);
}
/* now call into scheduler to sleep atomically with releasing spin lock */
osi_SleepSpin(sleepVal, csp);
}
void osi_SleepW(LONG_PTR sleepVal, struct osi_rwlock *lockp)
{
long i;
CRITICAL_SECTION *csp;
osi_queue_t * lockRefH, *lockRefT;
osi_lock_ref_t *lockRefp;
DWORD tid = thrd_Current();
if ((i = lockp->type) != 0) {
if (i >= 0 && i < OSI_NLOCKTYPES)
(osi_lockOps[i]->SleepWProc)(sleepVal, lockp);
return;
}
/* otherwise we're the fast base type */
csp = &osi_baseAtomicCS[lockp->atomicIndex];
EnterCriticalSection(csp);
if (lockOrderValidation && lockp->level != 0) {
lockRefH = (osi_queue_t *)TlsGetValue(tls_LockRefH);
lockRefT = (osi_queue_t *)TlsGetValue(tls_LockRefT);
for (lockRefp = (osi_lock_ref_t *)lockRefH ; lockRefp; lockRefp = (osi_lock_ref_t *)osi_QNext(&lockRefp->q)) {
if (lockRefp->type == OSI_LOCK_RW && lockRefp->rw == lockp) {
osi_QRemoveHT(&lockRefH, &lockRefT, &lockRefp->q);
lock_FreeLockRef(lockRefp);
break;
}
}
TlsSetValue(tls_LockRefH, lockRefH);
TlsSetValue(tls_LockRefT, lockRefT);
}
osi_assertx(lockp->flags & OSI_LOCKFLAG_EXCL, "osi_SleepW: not held");
lockp->flags &= ~OSI_LOCKFLAG_EXCL;
lockp->tid[0] = 0;
if (lockp->waiters) {
osi_TSignalForMLs(&lockp->d.turn, 0, NULL);
}
/* and finally release the big lock */
osi_SleepSpin(sleepVal, csp);
}
