tls-posix.cpp revision 5b281ba489ca18f0380d7efc7a5108b606cce449
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/* $Id$ */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/** @file
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * IPRT - Thread Local Storage (TLS), POSIX.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/*
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * Copyright (C) 2008 Sun Microsystems, Inc.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync *
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * available from http://www.virtualbox.org. This file is free software;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * you can redistribute it and/or modify it under the terms of the GNU
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * General Public License (GPL) as published by the Free Software
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync *
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * The contents of this file may alternatively be used under the terms
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * of the Common Development and Distribution License Version 1.0
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * VirtualBox OSE distribution, in which case the provisions of the
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * CDDL are applicable instead of those of the GPL.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync *
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * You may elect to license modified versions of this file under the
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * terms and conditions of either the GPL or the CDDL or both.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync *
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * additional information or have any questions.
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/*******************************************************************************
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync* Header Files *
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync*******************************************************************************/
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define LOG_GROUP RTLOGGROUP_THREAD
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#include <errno.h>
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#include <pthread.h>
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#include <iprt/thread.h>
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#include <iprt/log.h>
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#include <iprt/assert.h>
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#include <iprt/err.h>
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncAssertCompile(sizeof(pthread_key_t) == sizeof(RTTLS));
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncRTR3DECL(int) RTTlsAlloc(void)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync{
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync pthread_key_t iTls = NIL_RTTLS;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int rc = pthread_key_create(&iTls, NULL);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (!rc)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync {
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync Assert((RTTLS)iTls != NIL_RTTLS);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return iTls;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync }
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return NIL_RTTLS;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync}
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncRTR3DECL(int) RTTlsAllocEx(PRTTLS piTls, PFNRTTLSDTOR pfnDestructor)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync{
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync pthread_key_t iTls = NIL_RTTLS;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int rc = pthread_key_create(&iTls, pfnDestructor);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (!rc)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync {
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync *piTls = iTls;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync Assert((pthread_key_t)*piTls == iTls);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync Assert(*piTls != NIL_RTTLS);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return VINF_SUCCESS;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync }
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return RTErrConvertFromErrno(rc);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync}
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncRTR3DECL(int) RTTlsFree(RTTLS iTls)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync{
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (iTls == NIL_RTTLS)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return VINF_SUCCESS;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int rc = pthread_key_delete(iTls);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (!rc)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return VINF_SUCCESS;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return RTErrConvertFromErrno(rc);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync}
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncRTR3DECL(void *) RTTlsGet(RTTLS iTls)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync{
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return pthread_getspecific(iTls);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync}
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncRTR3DECL(int) RTTlsGetEx(RTTLS iTls, void **ppvValue)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync{
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (RT_UNLIKELY(iTls == NIL_RTTLS))
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return VERR_INVALID_PARAMETER;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync *ppvValue = pthread_getspecific(iTls);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return VINF_SUCCESS;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync}
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncRTR3DECL(int) RTTlsSet(RTTLS iTls, void *pvValue)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync{
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int rc = pthread_setspecific(iTls, pvValue);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync if (RT_UNLIKELY(rc != 0))
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return RTErrConvertFromErrno(rc);
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync return VINF_SUCCESS;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync}
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync