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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /*
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /* GLOBAL FUNCTIONS:
- ** DESCRIPTION:
- ** PR Atomic operations
- */
-
- #ifndef pratom_h___
- #define pratom_h___
-
- #include "prtypes.h"
-
- PR_BEGIN_EXTERN_C
-
- /*
- ** FUNCTION: PR_AtomicIncrement
- ** DESCRIPTION:
- ** Atomically increment a 32 bit value.
- ** INPUTS:
- ** val: a pointer to the value to increment
- ** RETURN:
- ** the returned value has the same sign as the result
- */
- PR_EXTERN(PRInt32) PR_AtomicIncrement(PRInt32 *val);
-
- /*
- ** FUNCTION: PR_AtomicDecrement
- ** DESCRIPTION:
- ** Atomically decrement a 32 bit value.
- ** INPUTS:
- ** val: a pointer to the value to decrement
- ** RETURN:
- ** the returned value has the same sign as the result
- */
- PR_EXTERN(PRInt32) PR_AtomicDecrement(PRInt32 *val);
-
- /*
- ** FUNCTION: PR_AtomicSet
- ** DESCRIPTION:
- ** Atomically set a 32 bit value.
- ** INPUTS:
- ** val: A pointer to a 32 bit value to bet set
- ** newval: The newvalue to assign to val
- ** RETURN:
- ** Returns the prior value
- */
- PR_EXTERN(PRInt32) PR_AtomicSet(PRInt32 *val, PRInt32 newval);
-
- PR_END_EXTERN_C
-
- #endif /* pratom_h___ */
-