/*
* Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
OSMetaClassDefineReservedUnused(IOTimerEventSource, 6);
OSMetaClassDefineReservedUnused(IOTimerEventSource, 7);
+//
+// reserved != 0 means IOTimerEventSource::timeoutAndRelease is being used,
+// not a subclassed implementation.
+//
+
bool IOTimerEventSource::checkForWork() { return false; }
// Timeout handler function. This function is called by the kernel when
{
IOTimerEventSource *me = (IOTimerEventSource *) self;
- if (me->enabled) {
- Action doit = (Action) me->action;
+ if (me->enabled && me->action)
+ {
+ IOWorkLoop *
+ wl = me->workLoop;
+ if (wl)
+ {
+ Action doit;
+ wl->closeGate();
+ doit = (Action) me->action;
+ if (doit && me->enabled && AbsoluteTime_to_scalar(&me->abstime))
+ {
+ IOTimeStampConstant(IODBG_TIMES(IOTIMES_ACTION),
+ (uintptr_t) doit, (uintptr_t) me->owner);
+ (*doit)(me->owner, me);
+ }
+ wl->openGate();
+ }
+ }
+}
- if (doit) {
- IOTimeStampConstant(IODBG_TIMES(IOTIMES_ACTION),
- (unsigned int) doit, (unsigned int) me->owner);
- me->closeGate();
- (*doit)(me->owner, me);
- me->openGate();
+void IOTimerEventSource::timeoutAndRelease(void * self, void * c)
+{
+ IOTimerEventSource *me = (IOTimerEventSource *) self;
+ /* The second parameter (a pointer) gets abused to carry an SInt32, so on LP64, "count"
+ must be cast to "long" before, in order to tell GCC we're not truncating a pointer. */
+ SInt32 count = (SInt32) (long) c;
+
+ if (me->enabled && me->action)
+ {
+ IOWorkLoop *
+ wl = me->reserved->workLoop;
+ if (wl)
+ {
+ Action doit;
+ wl->closeGate();
+ doit = (Action) me->action;
+ if (doit && (me->reserved->calloutGeneration == count))
+ {
+ IOTimeStampConstant(IODBG_TIMES(IOTIMES_ACTION),
+ (uintptr_t) doit, (uintptr_t) me->owner);
+ (*doit)(me->owner, me);
+ }
+ wl->openGate();
}
}
+
+ me->reserved->workLoop->release();
+ me->release();
}
void IOTimerEventSource::setTimeoutFunc()
{
- calloutEntry = (void *) thread_call_allocate((thread_call_func_t) timeout,
+ // reserved != 0 means IOTimerEventSource::timeoutAndRelease is being used,
+ // not a subclassed implementation
+ reserved = IONew(ExpansionData, 1);
+ calloutEntry = (void *) thread_call_allocate((thread_call_func_t) &IOTimerEventSource::timeoutAndRelease,
(thread_call_param_t) this);
}
thread_call_free((thread_call_t) calloutEntry);
}
+ if (reserved)
+ IODelete(reserved, ExpansionData, 1);
+
super::free();
}
void IOTimerEventSource::cancelTimeout()
{
- thread_call_cancel((thread_call_t) calloutEntry);
+ if (reserved)
+ reserved->calloutGeneration++;
+ bool active = thread_call_cancel((thread_call_t) calloutEntry);
AbsoluteTime_to_scalar(&abstime) = 0;
+ if (active && reserved)
+ {
+ release();
+ workLoop->release();
+ }
}
void IOTimerEventSource::enable()
void IOTimerEventSource::disable()
{
- thread_call_cancel((thread_call_t) calloutEntry);
+ if (reserved)
+ reserved->calloutGeneration++;
+ bool active = thread_call_cancel((thread_call_t) calloutEntry);
super::disable();
+ if (active && reserved)
+ {
+ release();
+ workLoop->release();
+ }
}
IOReturn IOTimerEventSource::setTimeoutTicks(UInt32 ticks)
{
- return setTimeout(ticks, NSEC_PER_SEC/hz);
+ return setTimeout(ticks, kTickScale);
}
IOReturn IOTimerEventSource::setTimeoutMS(UInt32 ms)
IOReturn IOTimerEventSource::setTimeout(UInt32 interval, UInt32 scale_factor)
{
AbsoluteTime end;
-
+
clock_interval_to_deadline(interval, scale_factor, &end);
return wakeAtTime(end);
}
+#if !defined(__LP64__)
IOReturn IOTimerEventSource::setTimeout(mach_timespec_t interval)
{
AbsoluteTime end, nsecs;
return wakeAtTime(end);
}
+#endif
IOReturn IOTimerEventSource::setTimeout(AbsoluteTime interval)
{
IOReturn IOTimerEventSource::wakeAtTimeTicks(UInt32 ticks)
{
- return wakeAtTime(ticks, NSEC_PER_SEC/hz);
+ return wakeAtTime(ticks, kTickScale);
}
IOReturn IOTimerEventSource::wakeAtTimeMS(UInt32 ms)
return wakeAtTime(us, kMicrosecondScale);
}
-IOReturn IOTimerEventSource::wakeAtTime(UInt32 abstime, UInt32 scale_factor)
+IOReturn IOTimerEventSource::wakeAtTime(UInt32 inAbstime, UInt32 scale_factor)
{
AbsoluteTime end;
- clock_interval_to_absolutetime_interval(abstime, scale_factor, &end);
+ clock_interval_to_absolutetime_interval(inAbstime, scale_factor, &end);
return wakeAtTime(end);
}
-IOReturn IOTimerEventSource::wakeAtTime(mach_timespec_t abstime)
+#if !defined(__LP64__)
+IOReturn IOTimerEventSource::wakeAtTime(mach_timespec_t inAbstime)
{
AbsoluteTime end, nsecs;
clock_interval_to_absolutetime_interval
- (abstime.tv_nsec, kNanosecondScale, &nsecs);
+ (inAbstime.tv_nsec, kNanosecondScale, &nsecs);
clock_interval_to_absolutetime_interval
- (abstime.tv_sec, kSecondScale, &end);
+ (inAbstime.tv_sec, kSecondScale, &end);
ADD_ABSOLUTETIME(&end, &nsecs);
return wakeAtTime(end);
}
+#endif
+
+void IOTimerEventSource::setWorkLoop(IOWorkLoop *inWorkLoop)
+{
+ super::setWorkLoop(inWorkLoop);
+ if ( enabled && AbsoluteTime_to_scalar(&abstime) && workLoop )
+ wakeAtTime(abstime);
+}
IOReturn IOTimerEventSource::wakeAtTime(AbsoluteTime inAbstime)
{
return kIOReturnNoResources;
abstime = inAbstime;
- if ( enabled && AbsoluteTime_to_scalar(&abstime) )
- thread_call_enter_delayed((thread_call_t) calloutEntry, abstime);
+ if ( enabled && AbsoluteTime_to_scalar(&inAbstime) && AbsoluteTime_to_scalar(&abstime) && workLoop )
+ {
+ if (reserved)
+ {
+ retain();
+ workLoop->retain();
+ reserved->workLoop = workLoop;
+ reserved->calloutGeneration++;
+ if (thread_call_enter1_delayed((thread_call_t) calloutEntry,
+ (void *) reserved->calloutGeneration, inAbstime))
+ {
+ release();
+ workLoop->release();
+ }
+ }
+ else
+ thread_call_enter_delayed((thread_call_t) calloutEntry, inAbstime);
+ }
return kIOReturnSuccess;
}
projects / apple / xnu.git / blobdiff