xnu-6153.11.26.tar.gz

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

diff --git a/iokit/IOKit/IOConditionLock.h b/iokit/IOKit/IOConditionLock.h
index 2bfef6f1885edcf5dc00eac08965b3d9c9ef30a6..52dd502d037690fe9a9d406c9d8c3f09570779b6 100644 (file)
--- a/iokit/IOKit/IOConditionLock.h
+++ b/iokit/IOKit/IOConditionLock.h
@@ -1,26 +1,32 @@
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2019 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_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
+ * @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. 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 OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
- * Copyright (c) 1994-1996 NeXT Software, Inc.  All rights reserved. 
+ * Copyright (c) 1994-1996 NeXT Software, Inc.  All rights reserved.
  */
 
 #ifndef _IOKIT_IOCONDITIONLOCK_H
@@ -34,32 +40,32 @@
 
 class IOConditionLock : public OSObject
 {
-    OSDeclareDefaultStructors(IOConditionLock)
+       OSDeclareDefaultStructors(IOConditionLock);
 
 private:
-    IOLock *           cond_interlock;         // condition var Simple lock
-    volatile int       condition;
+       IOLock *            cond_interlock;     // condition var Simple lock
+       volatile int        condition;
 
-    IOLock *           sleep_interlock;        // sleep lock Simple lock
-    unsigned char      interruptible;
-    volatile bool      want_lock;
-    volatile bool      waiting;
+       IOLock *            sleep_interlock;    // sleep lock Simple lock
+       unsigned char       interruptible;
+       volatile bool       want_lock;
+       volatile bool       waiting;
 
 public:
-    static IOConditionLock *withCondition(int condition, bool inIntr = true);
-    virtual bool initWithCondition(int condition, bool inIntr = true);
-    virtual void free();
+       static IOConditionLock *withCondition(int condition, bool inIntr = true);
+       virtual bool initWithCondition(int condition, bool inIntr = true);
+       virtual void free() APPLE_KEXT_OVERRIDE;
 
-    virtual bool tryLock();    // acquire lock, no waiting
-    virtual int  lock();       // acquire lock (enter critical section)
-    virtual void unlock();     // release lock (leave critical section)
+       virtual bool tryLock(); // acquire lock, no waiting
+       virtual int  lock();    // acquire lock (enter critical section)
+       virtual void unlock();  // release lock (leave critical section)
 
-    virtual bool getInterruptible() const;
-    virtual int  getCondition() const;
-    virtual int  setCondition(int condition);
+       virtual bool getInterruptible() const;
+       virtual int  getCondition() const;
+       virtual int  setCondition(int condition);
 
-    virtual int  lockWhen(int condition); // acquire lock when condition
-    virtual void unlockWith(int condition); // set condition & release lock
+       virtual int  lockWhen(int condition);// acquire lock when condition
+       virtual void unlockWith(int condition); // set condition & release lock
 };
 
 #endif /* _IOKIT_IOCONDITIONLOCK_H */