xnu-2782.20.48.tar.gz

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

diff --git a/iokit/IOKit/IOInterruptEventSource.h b/iokit/IOKit/IOInterruptEventSource.h
index 2e1a82765681f212bf98015bad4e3994ad4efc1d..553eb4104a8e5fbe56bc8371fd7869f7e7a21de3 100644 (file)
--- a/iokit/IOKit/IOInterruptEventSource.h
+++ b/iokit/IOKit/IOInterruptEventSource.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2014 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -42,6 +42,8 @@ HISTORY
 
 class IOService;
 
+struct IOInterruptAccountingData;
+
 /*! @class IOInterruptEventSource : public IOEventSource
     @abstract Event source for interrupt delivery to work-loop based drivers.
     @discussion The IOInterruptEventSource is a generic object that delivers calls interrupt routines in it's client in a guaranteed single-threaded manner.  IOInterruptEventSource is part of the IOKit $link IOWorkLoop infrastructure where the semantic that one and only one action method is executing within a work-loops event chain.
@@ -96,7 +98,9 @@ protected:
 /*! @struct ExpansionData
     @discussion This structure will be used to expand the capablilties of the IOWorkLoop in the future.
     */    
-    struct ExpansionData { };
+    struct ExpansionData {
+        IOInterruptAccountingData * statistics;
+    };
 
 /*! @var reserved
     Reserved for future use.  (Internal use only)  */
@@ -203,6 +207,7 @@ state when checkForWork is called. */
 
 private:
     IOReturn registerInterruptHandler(IOService *inProvider, int inIntIndex);
+    void unregisterInterruptHandler(IOService *inProvider, int inIntIndex);
 
 private:
     OSMetaClassDeclareReservedUnused(IOInterruptEventSource, 0);