1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/src/misc/pripcsem.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,98 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 + * File: pripcsem.c
1.11 + *
1.12 + * Description: implements the named semaphores API in prsemipc.h
1.13 + * for classic NSPR. If _PR_HAVE_NAMED_SEMAPHORES is not defined,
1.14 + * the named semaphore functions all fail with the error code
1.15 + * PR_NOT_IMPLEMENTED_ERROR.
1.16 + */
1.17 +
1.18 +#include "primpl.h"
1.19 +
1.20 +#ifdef _PR_PTHREADS
1.21 +
1.22 +#error "This file should not be compiled for the pthreads version"
1.23 +
1.24 +#else
1.25 +
1.26 +#ifndef _PR_HAVE_NAMED_SEMAPHORES
1.27 +
1.28 +PRSem * _PR_MD_OPEN_SEMAPHORE(
1.29 + const char *osname, PRIntn flags, PRIntn mode, PRUintn value)
1.30 +{
1.31 + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
1.32 + return NULL;
1.33 +}
1.34 +
1.35 +PRStatus _PR_MD_WAIT_SEMAPHORE(PRSem *sem)
1.36 +{
1.37 + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
1.38 + return PR_FAILURE;
1.39 +}
1.40 +
1.41 +PRStatus _PR_MD_POST_SEMAPHORE(PRSem *sem)
1.42 +{
1.43 + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
1.44 + return PR_FAILURE;
1.45 +}
1.46 +
1.47 +PRStatus _PR_MD_CLOSE_SEMAPHORE(PRSem *sem)
1.48 +{
1.49 + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
1.50 + return PR_FAILURE;
1.51 +}
1.52 +
1.53 +PRStatus _PR_MD_DELETE_SEMAPHORE(const char *osname)
1.54 +{
1.55 + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
1.56 + return PR_FAILURE;
1.57 +}
1.58 +
1.59 +#endif /* !_PR_HAVE_NAMED_SEMAPHORES */
1.60 +
1.61 +PR_IMPLEMENT(PRSem *) PR_OpenSemaphore(
1.62 + const char *name, PRIntn flags, PRIntn mode, PRUintn value)
1.63 +{
1.64 + char osname[PR_IPC_NAME_SIZE];
1.65 +
1.66 + if (!_pr_initialized) _PR_ImplicitInitialization();
1.67 + if (_PR_MakeNativeIPCName(name, osname, sizeof(osname), _PRIPCSem)
1.68 + == PR_FAILURE) {
1.69 + return NULL;
1.70 + }
1.71 + return _PR_MD_OPEN_SEMAPHORE(osname, flags, mode, value);
1.72 +}
1.73 +
1.74 +PR_IMPLEMENT(PRStatus) PR_WaitSemaphore(PRSem *sem)
1.75 +{
1.76 + return _PR_MD_WAIT_SEMAPHORE(sem);
1.77 +}
1.78 +
1.79 +PR_IMPLEMENT(PRStatus) PR_PostSemaphore(PRSem *sem)
1.80 +{
1.81 + return _PR_MD_POST_SEMAPHORE(sem);
1.82 +}
1.83 +
1.84 +PR_IMPLEMENT(PRStatus) PR_CloseSemaphore(PRSem *sem)
1.85 +{
1.86 + return _PR_MD_CLOSE_SEMAPHORE(sem);
1.87 +}
1.88 +
1.89 +PR_IMPLEMENT(PRStatus) PR_DeleteSemaphore(const char *name)
1.90 +{
1.91 + char osname[PR_IPC_NAME_SIZE];
1.92 +
1.93 + if (!_pr_initialized) _PR_ImplicitInitialization();
1.94 + if (_PR_MakeNativeIPCName(name, osname, sizeof(osname), _PRIPCSem)
1.95 + == PR_FAILURE) {
1.96 + return PR_FAILURE;
1.97 + }
1.98 + return _PR_MD_DELETE_SEMAPHORE(osname);
1.99 +}
1.100 +
1.101 +#endif /* _PR_PTHREADS */
