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ThreadLocal.hpp
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/*******************************************************************************
* Copyright IBM Corp. and others 2000
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at http://eclipse.org/legal/epl-2.0
* or the Apache License, Version 2.0 which accompanies this distribution
* and is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception [1] and GNU General Public
* License, version 2 with the OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] https://openjdk.org/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#ifndef THREADLOCAL_INCL
#define THREADLOCAL_INCL
#include <errno.h>
#include "infra/Assert.hpp"
#if defined(OMRZTPF) && !defined(SUPPORTS_THREAD_LOCAL)
/*
* For this include file, ThreadLocal.hpp, and the z/TPF OS platform,
* say that tls is supported. The z/TPF platform should use
* pthread _key_t variables and pthread functions for
* the tls* functions that are defined here.
*/
#define SUPPORTS_THREAD_LOCAL
#endif
#if defined(SUPPORTS_THREAD_LOCAL)
#if defined(OMR_OS_WINDOWS)
#include "windows.h"
#define tlsDeclare(type, variable) \
extern DWORD variable
#define tlsDefine(type, variable) \
DWORD variable = TLS_OUT_OF_INDEXES
#define tlsAlloc(variable) \
{ \
(variable) = TlsAlloc(); \
TR_ASSERT_FATAL((variable) != TLS_OUT_OF_INDEXES, "TlsAlloc failed with GetLastError = %d", GetLastError()); \
}
#define tlsFree(variable) \
{ \
DWORD rc = TlsFree(variable); \
TR_ASSERT_FATAL(rc != 0, "TlsFree failed with GetLastError = %d", GetLastError()); \
}
#define tlsSet(variable, value) \
{ \
BOOL rc = TlsSetValue((variable), value); \
TR_ASSERT_FATAL(rc != 0, "TlsSetValue failed with GetLastError = %d", GetLastError()); \
}
#define tlsGet(variable, type) \
((type)TlsGetValue(variable))
#elif (defined(LINUX) && !defined(OMRZTPF)) || defined(OSX) || defined(AIXPPC)
#define tlsDeclare(type, variable) \
extern __thread type variable
#define tlsDefine(type, variable) \
__thread type variable = NULL
#define tlsAlloc(variable)
#define tlsFree(variable)
#define tlsSet(variable, value) \
variable = value
#define tlsGet(variable, type) \
(variable)
#elif defined(OMRZTPF) || defined(J9ZOS390)
#include <pthread.h>
#define tlsDeclare(type, variable) \
extern pthread_key_t variable
#define tlsDefine(type, variable) \
pthread_key_t variable
#define tlsAlloc(variable) \
{ \
int rc = pthread_key_create(&variable, NULL); \
TR_ASSERT_FATAL(rc == 0, "pthread_key_create failed with rc = %d, errorno = %d, message = %s", rc, errno, strerror(errno)); \
}
#define tlsFree(variable) \
{ \
int rc = pthread_key_delete(variable); \
TR_ASSERT_FATAL(rc == 0, "pthread_key_delete failed with rc = %d, errorno = %d, message = %s", rc, errno, strerror(errno)); \
}
#define tlsSet(variable, value) \
{ \
int rc = pthread_setspecific(variable, value); \
TR_ASSERT_FATAL(rc == 0, "pthread_setspecific failed with rc = %d, errorno = %d, message = %s", rc, errno, strerror(errno)); \
}
#if defined(J9ZOS390)
#define tlsGet(variable, type) \
((type) pthread_getspecific_d8_np(variable))
#else
#define tlsGet(variable, type) \
((type) pthread_getspecific(variable))
#endif
#endif
#else /* !defined(SUPPORTS_THREAD_LOCAL) */
#define tlsDeclare(type, variable) \
extern type variable
#define tlsDefine(type, variable) \
type variable = NULL
#define tlsAlloc(variable)
#define tlsFree(variable)
#define tlsSet(variable, value) \
variable = value
#define tlsGet(variable, type) \
(variable)
#endif
#endif /* THREADLOCAL_INCL */