VirtualBox

source: vbox/trunk/src/VBox/Runtime/r3/posix/tls-posix.cpp@ 103914

Last change on this file since 103914 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

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1/* $Id: tls-posix.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - Thread Local Storage (TLS), POSIX.
4 */
5
6/*
7 * Copyright (C) 2008-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#define LOG_GROUP RTLOGGROUP_THREAD
42#include <errno.h>
43#include <pthread.h>
44
45#include <iprt/thread.h>
46#include <iprt/log.h>
47#include <iprt/assert.h>
48#include <iprt/errcore.h>
49
50
51AssertCompile(sizeof(pthread_key_t) <= sizeof(RTTLS));
52
53
54RTR3DECL(RTTLS) RTTlsAlloc(void)
55{
56 pthread_key_t iTls = (pthread_key_t)NIL_RTTLS;
57 int rc = pthread_key_create(&iTls, NULL);
58 if (!rc)
59 {
60 Assert(iTls != (pthread_key_t)NIL_RTTLS);
61 return iTls;
62 }
63 return NIL_RTTLS;
64}
65
66
67RTR3DECL(int) RTTlsAllocEx(PRTTLS piTls, PFNRTTLSDTOR pfnDestructor)
68{
69 pthread_key_t iTls = (pthread_key_t)NIL_RTTLS;
70#if defined(__GNUC__) && defined(RT_ARCH_X86)
71 int rc = pthread_key_create(&iTls, (void (*)(void*))pfnDestructor);
72#else
73 int rc = pthread_key_create(&iTls, pfnDestructor);
74#endif
75 if (!rc)
76 {
77 *piTls = iTls;
78 Assert((pthread_key_t)*piTls == iTls);
79 Assert(*piTls != NIL_RTTLS);
80 return VINF_SUCCESS;
81 }
82 return RTErrConvertFromErrno(rc);
83}
84
85
86RTR3DECL(int) RTTlsFree(RTTLS iTls)
87{
88 if (iTls == NIL_RTTLS)
89 return VINF_SUCCESS;
90 int rc = pthread_key_delete(iTls);
91 if (!rc)
92 return VINF_SUCCESS;
93 return RTErrConvertFromErrno(rc);
94}
95
96
97RTR3DECL(void *) RTTlsGet(RTTLS iTls)
98{
99 return pthread_getspecific(iTls);
100}
101
102
103RTR3DECL(int) RTTlsGetEx(RTTLS iTls, void **ppvValue)
104{
105 if (RT_UNLIKELY(iTls == NIL_RTTLS))
106 return VERR_INVALID_PARAMETER;
107 *ppvValue = pthread_getspecific(iTls);
108 return VINF_SUCCESS;
109}
110
111
112RTR3DECL(int) RTTlsSet(RTTLS iTls, void *pvValue)
113{
114 int rc = pthread_setspecific(iTls, pvValue);
115 if (RT_UNLIKELY(rc != 0))
116 return RTErrConvertFromErrno(rc);
117 return VINF_SUCCESS;
118}
119
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