/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998-2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the
* GPL.
*/
/*
* File: prpdce.h
* Description: This file is the API defined to allow for DCE (aka POSIX)
* thread emulation in an NSPR environment. It is not the
* intent that this be a fully supported API.
*/
#if !defined(PRPDCE_H)
#define PRPDCE_H
#include "prlock.h"
#include "prcvar.h"
#include "prtypes.h"
#include "prinrval.h"
PR_BEGIN_EXTERN_C
#define _PR_NAKED_CV_LOCK (PRLock*)0xdce1dce1
/*
** Test and acquire a lock.
**
** If the lock is acquired by the calling thread, the
** return value will be PR_SUCCESS. If the lock is
** already held, by another thread or this thread, the
** result will be PR_FAILURE.
*/
NSPR_API(PRStatus) PRP_TryLock(PRLock *lock);
/*
** Create a naked condition variable
**
** A "naked" condition variable is one that is not created bound
** to a lock. The CV created with this function is the only type
** that may be used in the subsequent "naked" condition variable
** operations (see PRP_NakedWait, PRP_NakedNotify, PRP_NakedBroadcast);
*/
NSPR_API(PRCondVar*) PRP_NewNakedCondVar(void);
/*
** Destroy a naked condition variable
**
** Destroy the condition variable created by PR_NewNakedCondVar.
*/
NSPR_API(void) PRP_DestroyNakedCondVar(PRCondVar *cvar);
/*
** Wait on a condition
**
** Wait on the condition variable 'cvar'. It is asserted that
** the lock protecting the condition 'lock' is held by the
** calling thread. If more time expires than that declared in
** 'timeout' the condition will be notified. Waits can be
** interrupted by another thread.
**
** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
*/
NSPR_API(PRStatus) PRP_NakedWait(
PRCondVar *cvar, PRLock *lock, PRIntervalTime timeout);
/*
** Notify a thread waiting on a condition
**
** Notify the condition specified 'cvar'.
**
** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
*/
NSPR_API(PRStatus) PRP_NakedNotify(PRCondVar *cvar);
/*
** Notify all threads waiting on a condition
**
** Notify the condition specified 'cvar'.
**
** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
*/
NSPR_API(PRStatus) PRP_NakedBroadcast(PRCondVar *cvar);
PR_END_EXTERN_C
#endif /* PRPDCE_H */