зеркало из https://github.com/mozilla/gecko-dev.git
87 строки
2.4 KiB
C
87 строки
2.4 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/*
|
|
* 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 */
|