252132d975
Change-Id: Icc9cd3410cde2589ea51385c651243e11cc2f1d9 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/155855 Tested-by: Jenkins Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
162 lines
4.1 KiB
C++
162 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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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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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#if defined LINUX
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// to define __USE_UNIX98, via _XOPEN_SOURCE, enabling pthread_mutexattr_settype
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE 1
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#endif
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#endif
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#include "unixerrnostring.hxx"
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#include <sal/log.hxx>
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#include <osl/mutex.h>
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#include <pthread.h>
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#include <stdlib.h>
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typedef struct _oslMutexImpl
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{
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pthread_mutex_t mutex;
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} oslMutexImpl;
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oslMutex SAL_CALL osl_createMutex()
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{
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oslMutexImpl* pMutex = static_cast<oslMutexImpl*>(malloc(sizeof(oslMutexImpl)));
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pthread_mutexattr_t aMutexAttr;
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int nRet=0;
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SAL_WARN_IF(!pMutex, "sal.osl.mutex", "null pMutex");
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if ( pMutex == nullptr )
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{
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return nullptr;
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}
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pthread_mutexattr_init(&aMutexAttr);
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nRet = pthread_mutexattr_settype(&aMutexAttr, PTHREAD_MUTEX_RECURSIVE);
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if( nRet == 0 )
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nRet = pthread_mutex_init(&(pMutex->mutex), &aMutexAttr);
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if ( nRet != 0 )
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{
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SAL_WARN("sal.osl.mutex", "pthread_muxex_init failed: " << UnixErrnoString(nRet));
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free(pMutex);
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pMutex = nullptr;
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}
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pthread_mutexattr_destroy(&aMutexAttr);
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return pMutex;
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}
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void SAL_CALL osl_destroyMutex(oslMutex pMutex)
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{
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SAL_WARN_IF(!pMutex, "sal.osl.mutex", "null pMutex");
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if ( pMutex != nullptr )
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{
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int nRet = pthread_mutex_destroy(&(pMutex->mutex));
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if ( nRet != 0 )
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{
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SAL_WARN("sal.osl.mutex", "pthread_mutex_destroy failed: " << UnixErrnoString(nRet));
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}
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free(pMutex);
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}
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}
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#ifdef __COVERITY__
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extern void __coverity_recursive_lock_acquire__(void*);
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extern void __coverity_recursive_lock_release__(void*);
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extern void __coverity_assert_locked__(void*);
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#endif
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sal_Bool SAL_CALL osl_acquireMutex(oslMutex pMutex)
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{
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SAL_WARN_IF(!pMutex, "sal.osl.mutex", "null pMutex");
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if ( pMutex != nullptr )
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{
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int nRet = pthread_mutex_lock(&(pMutex->mutex));
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if ( nRet != 0 )
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{
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SAL_WARN("sal.osl.mutex", "pthread_mutex_lock failed: " << UnixErrnoString(nRet));
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return false;
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}
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#ifdef __COVERITY__
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__coverity_recursive_lock_acquire__(pMutex);
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#endif
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return true;
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}
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/* not initialized */
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return false;
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}
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sal_Bool SAL_CALL osl_tryToAcquireMutex(oslMutex pMutex)
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{
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bool result = false;
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SAL_WARN_IF(!pMutex, "sal.osl.mutex", "null pMutex");
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if ( pMutex )
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{
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int nRet = pthread_mutex_trylock(&(pMutex->mutex));
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if ( nRet == 0 )
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{
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#ifdef __COVERITY__
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__coverity_recursive_lock_acquire__(pMutex);
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#endif
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result = true;
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}
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}
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return result;
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}
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sal_Bool SAL_CALL osl_releaseMutex(oslMutex pMutex)
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{
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#ifdef __COVERITY__
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__coverity_assert_locked__(pMutex);
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#endif
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SAL_WARN_IF(!pMutex, "sal.osl.mutex", "null pMutex");
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if ( pMutex )
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{
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int nRet = pthread_mutex_unlock(&(pMutex->mutex));
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if ( nRet != 0 )
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{
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SAL_WARN("sal.osl.mutex", "pthread_mutex_unlock failed: " << UnixErrnoString(nRet));
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return false;
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}
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#ifdef __COVERITY__
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__coverity_recursive_lock_release__(pMutex);
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#endif
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return true;
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}
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/* not initialized */
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return false;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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