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/* -*- 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: 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 */
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