xnu-792.12.6.tar.gz

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

diff --git a/iokit/IOKit/IOTimerEventSource.h b/iokit/IOKit/IOTimerEventSource.h
index fd73358217760ab2a9e9d24e47247d32a2216573..28a37a7def0d1505964631a63ca58b67100686bd 100644 (file)
--- a/iokit/IOKit/IOTimerEventSource.h
+++ b/iokit/IOKit/IOTimerEventSource.h
@@ -1,23 +1,31 @@
 /*
  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
  * 
- * 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 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 OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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.
+ *
+ * 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 
+ * 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.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 /*
  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved. 
@@ -62,9 +70,13 @@ 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)  */
@@ -89,6 +101,8 @@ 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
@@ -203,6 +217,9 @@ 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);