/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* 1.1 (the "License"); you may not use this file except in compliance with
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* License.
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* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
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* Portions created by the Initial Developer are Copyright (C) 1998-2000
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/* GLOBAL FUNCTIONS:
** DESCRIPTION:
** PR Atomic operations
*/
#ifndef pratom_h___
#define pratom_h___
#include "prtypes.h"
#include "prlock.h"
#endif /* VBOX_WITH_XPCOM_NAMESPACE_CLEANUP */
/*
** FUNCTION: PR_AtomicIncrement
** DESCRIPTION:
** Atomically increment a 32 bit value.
** INPUTS:
** val: a pointer to the value to increment
** RETURN:
** the returned value is the result of the increment
*/
/*
** FUNCTION: PR_AtomicDecrement
** DESCRIPTION:
** Atomically decrement a 32 bit value.
** INPUTS:
** val: a pointer to the value to decrement
** RETURN:
** the returned value is the result of the decrement
*/
/*
** FUNCTION: PR_AtomicSet
** DESCRIPTION:
** Atomically set a 32 bit value.
** INPUTS:
** val: A pointer to a 32 bit value to be set
** newval: The newvalue to assign to val
** RETURN:
** Returns the prior value
*/
/*
** FUNCTION: PR_AtomicAdd
** DESCRIPTION:
** Atomically add a 32 bit value.
** INPUTS:
** ptr: a pointer to the value to increment
** val: value to be added
** RETURN:
** the returned value is the result of the addition
*/
/*
** LIFO linked-list (stack)
*/
struct PRStackElemStr {
assembly language code relies on this */
};
/*
** FUNCTION: PR_CreateStack
** DESCRIPTION:
** Create a stack, a LIFO linked list
** INPUTS:
** stack_name: a pointer to string containing the name of the stack
** RETURN:
** A pointer to the created stack, if successful, else NULL.
*/
/*
** FUNCTION: PR_StackPush
** DESCRIPTION:
** Push an element on the top of the stack
** INPUTS:
** stack: pointer to the stack
** stack_elem: pointer to the stack element
** RETURN:
** None
*/
/*
** FUNCTION: PR_StackPop
** DESCRIPTION:
** Remove the element on the top of the stack
** INPUTS:
** stack: pointer to the stack
** RETURN:
** A pointer to the stack element removed from the top of the stack,
** if non-empty,
** else NULL
*/
/*
** FUNCTION: PR_DestroyStack
** DESCRIPTION:
** Destroy the stack
** INPUTS:
** stack: pointer to the stack
** RETURN:
** PR_SUCCESS - if successfully deleted
** PR_FAILURE - if the stack is not empty
** PR_GetError will return
** PR_INVALID_STATE_ERROR - stack is not empty
*/
#endif /* pratom_h___ */