diff options
Diffstat (limited to 'src/VBox/Runtime/r3/posix/tls-posix.cpp')
-rw-r--r-- | src/VBox/Runtime/r3/posix/tls-posix.cpp | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/posix/tls-posix.cpp b/src/VBox/Runtime/r3/posix/tls-posix.cpp new file mode 100644 index 00000000..2c580451 --- /dev/null +++ b/src/VBox/Runtime/r3/posix/tls-posix.cpp @@ -0,0 +1,109 @@ +/* $Id: tls-posix.cpp $ */ +/** @file + * IPRT - Thread Local Storage (TLS), POSIX. + */ + +/* + * Copyright (C) 2008-2019 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define LOG_GROUP RTLOGGROUP_THREAD +#include <errno.h> +#include <pthread.h> + +#include <iprt/thread.h> +#include <iprt/log.h> +#include <iprt/assert.h> +#include <iprt/errcore.h> + + +AssertCompile(sizeof(pthread_key_t) <= sizeof(RTTLS)); + + +RTR3DECL(RTTLS) RTTlsAlloc(void) +{ + pthread_key_t iTls = (pthread_key_t)NIL_RTTLS; + int rc = pthread_key_create(&iTls, NULL); + if (!rc) + { + Assert(iTls != (pthread_key_t)NIL_RTTLS); + return iTls; + } + return NIL_RTTLS; +} + + +RTR3DECL(int) RTTlsAllocEx(PRTTLS piTls, PFNRTTLSDTOR pfnDestructor) +{ + pthread_key_t iTls = (pthread_key_t)NIL_RTTLS; +#if defined(__GNUC__) && defined(RT_ARCH_X86) + int rc = pthread_key_create(&iTls, (void (*)(void*))pfnDestructor); +#else + int rc = pthread_key_create(&iTls, pfnDestructor); +#endif + if (!rc) + { + *piTls = iTls; + Assert((pthread_key_t)*piTls == iTls); + Assert(*piTls != NIL_RTTLS); + return VINF_SUCCESS; + } + return RTErrConvertFromErrno(rc); +} + + +RTR3DECL(int) RTTlsFree(RTTLS iTls) +{ + if (iTls == NIL_RTTLS) + return VINF_SUCCESS; + int rc = pthread_key_delete(iTls); + if (!rc) + return VINF_SUCCESS; + return RTErrConvertFromErrno(rc); +} + + +RTR3DECL(void *) RTTlsGet(RTTLS iTls) +{ + return pthread_getspecific(iTls); +} + + +RTR3DECL(int) RTTlsGetEx(RTTLS iTls, void **ppvValue) +{ + if (RT_UNLIKELY(iTls == NIL_RTTLS)) + return VERR_INVALID_PARAMETER; + *ppvValue = pthread_getspecific(iTls); + return VINF_SUCCESS; +} + + +RTR3DECL(int) RTTlsSet(RTTLS iTls, void *pvValue) +{ + int rc = pthread_setspecific(iTls, pvValue); + if (RT_UNLIKELY(rc != 0)) + return RTErrConvertFromErrno(rc); + return VINF_SUCCESS; +} + |