xnu-792.tar.gz

[apple/xnu.git] / iokit / IOKit / IOTimerEventSource.h

diff --git a/iokit/IOKit/IOTimerEventSource.h b/iokit/IOKit/IOTimerEventSource.h
index a55753bc895112c9deff23d5ed648f50d3995dfb..80fb27309ed5cb242f5861437c49127bff2c62fa 100644 (file)
--- a/iokit/IOKit/IOTimerEventSource.h
+++ b/iokit/IOKit/IOTimerEventSource.h
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * 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.
  * 
- * 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.
- * 
- * 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_LICENSE_HEADER_END@
  */
@@ -65,9 +62,13 @@ protected:
     AbsoluteTime abstime;
 
 /*! @struct ExpansionData
-    @discussion This structure will be used to expand the capablilties of the IOWorkLoop in the future.
+    @discussion This structure is private to the IOTimerEventSource implementation.
     */    
-    struct ExpansionData { };
+    struct ExpansionData
+    {
+        SInt32      calloutGeneration;
+        IOWorkLoop * workLoop;
+    };
 
 /*! @var reserved
     Reserved for future use.  (Internal use only)  */
@@ -92,6 +93,8 @@ protected:
     @abstract Have to implement it is mandatory in $link IOEventSource, but IOTimerEventSources don't actually use this work-loop mechanism. */
     virtual bool checkForWork();
 
+    virtual void setWorkLoop(IOWorkLoop *workLoop);
+
 public:
 
 /*! @typedef Action
@@ -206,6 +209,9 @@ public:
     @discussion Clear down any oustanding calls.  By the time this function completes it is guaranteed that the action will not be called again. */
    virtual void cancelTimeout();
 
+private:
+    static void timeoutAndRelease(void *self, void *wl);
+
 private:
     OSMetaClassDeclareReservedUnused(IOTimerEventSource, 0);
     OSMetaClassDeclareReservedUnused(IOTimerEventSource, 1);