/* virtual */ bool IOWorkLoop::runEventSources()
{
bool res = false;
bool traceWL = (gIOKitTrace & kIOTraceWorkLoops) ? true : false;
bool traceES = (gIOKitTrace & kIOTraceEventSources) ? true : false;
closeGate();
if (ISSETP(&fFlags, kLoopTerminate))
goto abort;
if (traceWL)
IOTimeStampStartConstant(IODBG_WORKLOOP(IOWL_WORK), (uintptr_t) this);
bool more;
do {
CLRP(&fFlags, kLoopRestart);
more = false;
IOInterruptState is = IOSimpleLockLockDisableInterrupt(workToDoLock);
workToDo = false;
IOSimpleLockUnlockEnableInterrupt(workToDoLock, is);
/* NOTE: only loop over event sources in eventChain. Bypass "passive" event sources for performance */
for (IOEventSource *evnt = eventChain; evnt; evnt = evnt->getNext()) {
if (traceES)
IOTimeStampStartConstant(IODBG_WORKLOOP(IOWL_CLIENT), (uintptr_t) this, (uintptr_t) evnt);
more |= evnt->checkForWork();
if (traceES)
IOTimeStampEndConstant(IODBG_WORKLOOP(IOWL_CLIENT), (uintptr_t) this, (uintptr_t) evnt);
if (ISSETP(&fFlags, kLoopTerminate))
goto abort;
else if (fFlags & kLoopRestart) {
more = true;
break;
}
}
} while (more);
res = true;
if (traceWL)
IOTimeStampEndConstant(IODBG_WORKLOOP(IOWL_WORK), (uintptr_t) this);
abort:
openGate();
return res;
}
/* virtual */ bool IOWorkLoop::runEventSources()
{
bool res = false;
closeGate();
if (ISSETP(&fFlags, kLoopTerminate))
goto abort;
IOTimeWorkS();
bool more;
do {
CLRP(&fFlags, kLoopRestart);
more = false;
IOInterruptState is = IOSimpleLockLockDisableInterrupt(workToDoLock);
workToDo = false;
IOSimpleLockUnlockEnableInterrupt(workToDoLock, is);
for (IOEventSource *evnt = eventChain; evnt; evnt = evnt->getNext()) {
IOTimeClientS();
more |= evnt->checkForWork();
IOTimeClientE();
if (ISSETP(&fFlags, kLoopTerminate))
goto abort;
else if (fFlags & kLoopRestart) {
more = true;
break;
}
}
} while (more);
res = true;
IOTimeWorkE();
abort:
openGate();
return res;
}