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87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* File: prpdce.h
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* Description: This file is the API defined to allow for DCE (aka POSIX)
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* thread emulation in an NSPR environment. It is not the
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* intent that this be a fully supported API.
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*/
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#if !defined(PRPDCE_H)
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#define PRPDCE_H
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#include "prlock.h"
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#include "prcvar.h"
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#include "prtypes.h"
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#include "prinrval.h"
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PR_BEGIN_EXTERN_C
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#define _PR_NAKED_CV_LOCK (PRLock*)0xdce1dce1
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/*
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** Test and acquire a lock.
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**
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** If the lock is acquired by the calling thread, the
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** return value will be PR_SUCCESS. If the lock is
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** already held, by another thread or this thread, the
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** result will be PR_FAILURE.
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*/
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NSPR_API(PRStatus) PRP_TryLock(PRLock *lock);
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/*
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** Create a naked condition variable
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**
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** A "naked" condition variable is one that is not created bound
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** to a lock. The CV created with this function is the only type
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** that may be used in the subsequent "naked" condition variable
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** operations (see PRP_NakedWait, PRP_NakedNotify, PRP_NakedBroadcast);
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*/
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NSPR_API(PRCondVar*) PRP_NewNakedCondVar(void);
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/*
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** Destroy a naked condition variable
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**
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** Destroy the condition variable created by PR_NewNakedCondVar.
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*/
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NSPR_API(void) PRP_DestroyNakedCondVar(PRCondVar *cvar);
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/*
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** Wait on a condition
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**
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** Wait on the condition variable 'cvar'. It is asserted that
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** the lock protecting the condition 'lock' is held by the
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** calling thread. If more time expires than that declared in
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** 'timeout' the condition will be notified. Waits can be
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** interrupted by another thread.
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**
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** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
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*/
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NSPR_API(PRStatus) PRP_NakedWait(
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PRCondVar *cvar, PRLock *lock, PRIntervalTime timeout);
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/*
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** Notify a thread waiting on a condition
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**
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** Notify the condition specified 'cvar'.
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**
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** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
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*/
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NSPR_API(PRStatus) PRP_NakedNotify(PRCondVar *cvar);
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/*
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** Notify all threads waiting on a condition
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**
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** Notify the condition specified 'cvar'.
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**
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** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
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*/
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NSPR_API(PRStatus) PRP_NakedBroadcast(PRCondVar *cvar);
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PR_END_EXTERN_C
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#endif /* PRPDCE_H */
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