/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 the Initial Developer are Copyright (C) 1999-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* File: pripcsem.c
*
* Description: implements the named semaphores API in prsemipc.h
* for classic NSPR. If _PR_HAVE_NAMED_SEMAPHORES is not defined,
* the named semaphore functions all fail with the error code
* PR_NOT_IMPLEMENTED_ERROR.
*/
#include "primpl.h"
#ifdef _PR_PTHREADS
#error "This file should not be compiled for the pthreads version"
#else
#ifndef _PR_HAVE_NAMED_SEMAPHORES
PRSem * _PR_MD_OPEN_SEMAPHORE(
const char *osname, PRIntn flags, PRIntn mode, PRUintn value)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return NULL;
}
PRStatus _PR_MD_WAIT_SEMAPHORE(PRSem *sem)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
}
PRStatus _PR_MD_POST_SEMAPHORE(PRSem *sem)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
}
PRStatus _PR_MD_CLOSE_SEMAPHORE(PRSem *sem)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
}
PRStatus _PR_MD_DELETE_SEMAPHORE(const char *osname)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
}
#endif /* !_PR_HAVE_NAMED_SEMAPHORES */
PR_IMPLEMENT(PRSem *) PR_OpenSemaphore(
const char *name, PRIntn flags, PRIntn mode, PRUintn value)
{
char osname[PR_IPC_NAME_SIZE];
if (!_pr_initialized) _PR_ImplicitInitialization();
if (_PR_MakeNativeIPCName(name, osname, sizeof(osname), _PRIPCSem)
== PR_FAILURE) {
return NULL;
}
return _PR_MD_OPEN_SEMAPHORE(osname, flags, mode, value);
}
PR_IMPLEMENT(PRStatus) PR_WaitSemaphore(PRSem *sem)
{
return _PR_MD_WAIT_SEMAPHORE(sem);
}
PR_IMPLEMENT(PRStatus) PR_PostSemaphore(PRSem *sem)
{
return _PR_MD_POST_SEMAPHORE(sem);
}
PR_IMPLEMENT(PRStatus) PR_CloseSemaphore(PRSem *sem)
{
return _PR_MD_CLOSE_SEMAPHORE(sem);
}
PR_IMPLEMENT(PRStatus) PR_DeleteSemaphore(const char *name)
{
char osname[PR_IPC_NAME_SIZE];
if (!_pr_initialized) _PR_ImplicitInitialization();
if (_PR_MakeNativeIPCName(name, osname, sizeof(osname), _PRIPCSem)
== PR_FAILURE) {
return PR_FAILURE;
}
return _PR_MD_DELETE_SEMAPHORE(osname);
}
#endif /* _PR_PTHREADS */