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Annotation of sbbs/include/mozilla/nspr/prpdce.h, revision 1.1

1.1     ! root        1: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
        !             2: /* 
        !             3:  * The contents of this file are subject to the Mozilla Public
        !             4:  * License Version 1.1 (the "License"); you may not use this file
        !             5:  * except in compliance with the License. You may obtain a copy of
        !             6:  * the License at http://www.mozilla.org/MPL/
        !             7:  * 
        !             8:  * Software distributed under the License is distributed on an "AS
        !             9:  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
        !            10:  * implied. See the License for the specific language governing
        !            11:  * rights and limitations under the License.
        !            12:  * 
        !            13:  * The Original Code is the Netscape Portable Runtime (NSPR).
        !            14:  * 
        !            15:  * The Initial Developer of the Original Code is Netscape
        !            16:  * Communications Corporation.  Portions created by Netscape are 
        !            17:  * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
        !            18:  * Rights Reserved.
        !            19:  * 
        !            20:  * Contributor(s):
        !            21:  * 
        !            22:  * Alternatively, the contents of this file may be used under the
        !            23:  * terms of the GNU General Public License Version 2 or later (the
        !            24:  * "GPL"), in which case the provisions of the GPL are applicable 
        !            25:  * instead of those above.  If you wish to allow use of your 
        !            26:  * version of this file only under the terms of the GPL and not to
        !            27:  * allow others to use your version of this file under the MPL,
        !            28:  * indicate your decision by deleting the provisions above and
        !            29:  * replace them with the notice and other provisions required by
        !            30:  * the GPL.  If you do not delete the provisions above, a recipient
        !            31:  * may use your version of this file under either the MPL or the
        !            32:  * GPL.
        !            33:  */
        !            34: 
        !            35: /*
        !            36:  * File:       prpdce.h
        !            37:  * Description:    This file is the API defined to allow for DCE (aka POSIX)
        !            38:  *             thread emulation in an NSPR environment. It is not the
        !            39:  *             intent that this be a fully supported API.
        !            40:  */
        !            41: 
        !            42: #if !defined(PRPDCE_H)
        !            43: #define PRPDCE_H
        !            44: 
        !            45: #include "prlock.h"
        !            46: #include "prcvar.h"
        !            47: #include "prtypes.h"
        !            48: #include "prinrval.h"
        !            49: 
        !            50: PR_BEGIN_EXTERN_C
        !            51: 
        !            52: #define _PR_NAKED_CV_LOCK (PRLock*)0xdce1dce1
        !            53: 
        !            54: /*
        !            55: ** Test and acquire a lock.
        !            56: **
        !            57: ** If the lock is acquired by the calling thread, the
        !            58: ** return value will be PR_SUCCESS. If the lock is
        !            59: ** already held, by another thread or this thread, the
        !            60: ** result will be PR_FAILURE.
        !            61: */
        !            62: NSPR_API(PRStatus) PRP_TryLock(PRLock *lock);
        !            63: 
        !            64: /*
        !            65: ** Create a naked condition variable
        !            66: **
        !            67: ** A "naked" condition variable is one that is not created bound
        !            68: ** to a lock. The CV created with this function is the only type
        !            69: ** that may be used in the subsequent "naked" condition variable
        !            70: ** operations (see PRP_NakedWait, PRP_NakedNotify, PRP_NakedBroadcast);
        !            71: */
        !            72: NSPR_API(PRCondVar*) PRP_NewNakedCondVar(void);
        !            73: 
        !            74: /*
        !            75: ** Destroy a naked condition variable
        !            76: **
        !            77: ** Destroy the condition variable created by PR_NewNakedCondVar.
        !            78: */
        !            79: NSPR_API(void) PRP_DestroyNakedCondVar(PRCondVar *cvar);
        !            80: 
        !            81: /*
        !            82: ** Wait on a condition
        !            83: **
        !            84: ** Wait on the condition variable 'cvar'. It is asserted that
        !            85: ** the lock protecting the condition 'lock' is held by the
        !            86: ** calling thread. If more time expires than that declared in
        !            87: ** 'timeout' the condition will be notified. Waits can be
        !            88: ** interrupted by another thread.
        !            89: **
        !            90: ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
        !            91: */
        !            92: NSPR_API(PRStatus) PRP_NakedWait(
        !            93:    PRCondVar *cvar, PRLock *lock, PRIntervalTime timeout);
        !            94: 
        !            95: /*
        !            96: ** Notify a thread waiting on a condition
        !            97: **
        !            98: ** Notify the condition specified 'cvar'.
        !            99: **
        !           100: ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
        !           101: */
        !           102: NSPR_API(PRStatus) PRP_NakedNotify(PRCondVar *cvar);
        !           103: 
        !           104: /*
        !           105: ** Notify all threads waiting on a condition
        !           106: **
        !           107: ** Notify the condition specified 'cvar'.
        !           108: **
        !           109: ** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
        !           110: */
        !           111: NSPR_API(PRStatus) PRP_NakedBroadcast(PRCondVar *cvar);
        !           112: 
        !           113: PR_END_EXTERN_C
        !           114: 
        !           115: #endif /* PRPDCE_H */

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