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--- xnu/xnu-2050.22.13/iokit/Kernel/IOTimerEventSource.cpp
+++ xnu/xnu-792.6.70/iokit/Kernel/IOTimerEventSource.cpp
@@ -1,29 +1,34 @@
/*
- * Copyright (c) 1998-2000, 2009-2010 Apple Inc. All rights reserved.
+ * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * @APPLE_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. 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.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License"). You may not use this file except in compliance with the
+ * License. Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
*
- * 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
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * IOTimerEventSource.cpp
+ *
+ * HISTORY
+ * 2-Feb-1999 Joe Liu (jliu) created.
+ * 1999-10-14 Godfrey van der Linden(gvdl)
+ * Revamped to use thread_call APIs
+ *
*/
#include <sys/cdefs.h>
@@ -40,7 +45,6 @@
#include <IOKit/IOWorkLoop.h>
#include <IOKit/IOTimeStamp.h>
-#include <IOKit/IOKitDebug.h>
#define super IOEventSource
OSDefineMetaClassAndStructors(IOTimerEventSource, IOEventSource)
@@ -53,50 +57,19 @@
OSMetaClassDefineReservedUnused(IOTimerEventSource, 6);
OSMetaClassDefineReservedUnused(IOTimerEventSource, 7);
-#if IOKITSTATS
-
-#define IOStatisticsInitializeCounter() \
-do { \
- IOStatistics::setCounterType(IOEventSource::reserved->counter, kIOStatisticsTimerEventSourceCounter); \
-} while (0)
-
-#define IOStatisticsOpenGate() \
-do { \
- IOStatistics::countOpenGate(me->IOEventSource::reserved->counter); \
-} while (0)
-
-#define IOStatisticsCloseGate() \
-do { \
- IOStatistics::countCloseGate(me->IOEventSource::reserved->counter); \
-} while (0)
-
-#define IOStatisticsTimeout() \
-do { \
- IOStatistics::countTimerTimeout(me->IOEventSource::reserved->counter); \
-} while (0)
-
-#else
-
-#define IOStatisticsInitializeCounter()
-#define IOStatisticsOpenGate()
-#define IOStatisticsCloseGate()
-#define IOStatisticsTimeout()
-
-#endif /* IOKITSTATS */
-
//
// 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
// the timeout interval expires.
//
void IOTimerEventSource::timeout(void *self)
{
IOTimerEventSource *me = (IOTimerEventSource *) self;
-
- IOStatisticsTimeout();
if (me->enabled && me->action)
{
@@ -106,37 +79,22 @@
{
Action doit;
wl->closeGate();
- IOStatisticsCloseGate();
doit = (Action) me->action;
if (doit && me->enabled && AbsoluteTime_to_scalar(&me->abstime))
{
- bool trace = (gIOKitTrace & kIOTraceTimers) ? true : false;
-
- if (trace)
- IOTimeStampStartConstant(IODBG_TIMES(IOTIMES_ACTION),
- (uintptr_t) doit, (uintptr_t) me->owner);
-
+ IOTimeStampConstant(IODBG_TIMES(IOTIMES_ACTION),
+ (unsigned int) doit, (unsigned int) me->owner);
(*doit)(me->owner, me);
-
- if (trace)
- IOTimeStampEndConstant(IODBG_TIMES(IOTIMES_ACTION),
- (uintptr_t) doit, (uintptr_t) me->owner);
}
- IOStatisticsOpenGate();
wl->openGate();
}
}
}
-void IOTimerEventSource::timeoutAndRelease(void * self, void * c)
+void IOTimerEventSource::timeoutAndRelease(void * self, void * count)
{
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;
-
- IOStatisticsTimeout();
-
+
if (me->enabled && me->action)
{
IOWorkLoop *
@@ -145,23 +103,13 @@
{
Action doit;
wl->closeGate();
- IOStatisticsCloseGate();
doit = (Action) me->action;
- if (doit && (me->reserved->calloutGeneration == count))
+ if (doit && (me->reserved->calloutGeneration == (SInt32) count))
{
- bool trace = (gIOKitTrace & kIOTraceTimers) ? true : false;
-
- if (trace)
- IOTimeStampStartConstant(IODBG_TIMES(IOTIMES_ACTION),
- (uintptr_t) doit, (uintptr_t) me->owner);
-
+ IOTimeStampConstant(IODBG_TIMES(IOTIMES_ACTION),
+ (unsigned int) doit, (unsigned int) me->owner);
(*doit)(me->owner, me);
-
- if (trace)
- IOTimeStampEndConstant(IODBG_TIMES(IOTIMES_ACTION),
- (uintptr_t) doit, (uintptr_t) me->owner);
}
- IOStatisticsOpenGate();
wl->openGate();
}
}
@@ -188,8 +136,6 @@
if (!calloutEntry)
return false;
- IOStatisticsInitializeCounter();
-
return true;
}
@@ -270,12 +216,11 @@
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;
@@ -288,7 +233,6 @@
return wakeAtTime(end);
}
-#endif
IOReturn IOTimerEventSource::setTimeout(AbsoluteTime interval)
{
@@ -323,7 +267,6 @@
return wakeAtTime(end);
}
-#if !defined(__LP64__)
IOReturn IOTimerEventSource::wakeAtTime(mach_timespec_t inAbstime)
{
AbsoluteTime end, nsecs;
@@ -336,7 +279,6 @@
return wakeAtTime(end);
}
-#endif
void IOTimerEventSource::setWorkLoop(IOWorkLoop *inWorkLoop)
{
@@ -351,7 +293,7 @@
return kIOReturnNoResources;
abstime = inAbstime;
- if ( enabled && AbsoluteTime_to_scalar(&inAbstime) && AbsoluteTime_to_scalar(&abstime) && workLoop )
+ if ( enabled && AbsoluteTime_to_scalar(&abstime) && workLoop )
{
if (reserved)
{
@@ -360,14 +302,14 @@
reserved->workLoop = workLoop;
reserved->calloutGeneration++;
if (thread_call_enter1_delayed((thread_call_t) calloutEntry,
- (void *) reserved->calloutGeneration, inAbstime))
+ (void *) reserved->calloutGeneration, abstime))
{
release();
workLoop->release();
}
}
else
- thread_call_enter_delayed((thread_call_t) calloutEntry, inAbstime);
+ thread_call_enter_delayed((thread_call_t) calloutEntry, abstime);
}
return kIOReturnSuccess;