| 1 | /* $Id: tls-win.cpp 69111 2017-10-17 14:26:02Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - Thread Local Storage (TLS), Win32.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2008-2017 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #define LOG_GROUP RTLOGGROUP_THREAD
|
|---|
| 32 | #include <iprt/win/windows.h>
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/thread.h>
|
|---|
| 35 | #include <iprt/log.h>
|
|---|
| 36 | #include <iprt/assert.h>
|
|---|
| 37 | #include <iprt/err.h>
|
|---|
| 38 | #include "internal/thread.h"
|
|---|
| 39 |
|
|---|
| 40 |
|
|---|
| 41 | AssertCompile(sizeof(RTTLS) >= sizeof(DWORD));
|
|---|
| 42 |
|
|---|
| 43 |
|
|---|
| 44 | RTR3DECL(RTTLS) RTTlsAlloc(void)
|
|---|
| 45 | {
|
|---|
| 46 | DWORD iTls = TlsAlloc();
|
|---|
| 47 | return iTls != TLS_OUT_OF_INDEXES ? (RTTLS)iTls : NIL_RTTLS;
|
|---|
| 48 | }
|
|---|
| 49 |
|
|---|
| 50 |
|
|---|
| 51 | RTR3DECL(int) RTTlsAllocEx(PRTTLS piTls, PFNRTTLSDTOR pfnDestructor)
|
|---|
| 52 | {
|
|---|
| 53 | AssertReturn(!pfnDestructor, VERR_NOT_SUPPORTED);
|
|---|
| 54 | DWORD iTls = TlsAlloc();
|
|---|
| 55 | if (iTls != TLS_OUT_OF_INDEXES)
|
|---|
| 56 | {
|
|---|
| 57 | Assert((RTTLS)iTls != NIL_RTTLS);
|
|---|
| 58 | *piTls = (RTTLS)iTls;
|
|---|
| 59 | Assert((DWORD)*piTls == iTls);
|
|---|
| 60 | return VINF_SUCCESS;
|
|---|
| 61 | }
|
|---|
| 62 |
|
|---|
| 63 | return VERR_NO_MEMORY;
|
|---|
| 64 | }
|
|---|
| 65 |
|
|---|
| 66 |
|
|---|
| 67 | RTR3DECL(int) RTTlsFree(RTTLS iTls)
|
|---|
| 68 | {
|
|---|
| 69 | if (iTls == NIL_RTTLS)
|
|---|
| 70 | return VINF_SUCCESS;
|
|---|
| 71 | if (TlsFree((DWORD)iTls))
|
|---|
| 72 | return VINF_SUCCESS;
|
|---|
| 73 | return RTErrConvertFromWin32(GetLastError());
|
|---|
| 74 | }
|
|---|
| 75 |
|
|---|
| 76 |
|
|---|
| 77 | RTR3DECL(void *) RTTlsGet(RTTLS iTls)
|
|---|
| 78 | {
|
|---|
| 79 | return TlsGetValue((DWORD)iTls);
|
|---|
| 80 | }
|
|---|
| 81 |
|
|---|
| 82 |
|
|---|
| 83 | RTR3DECL(int) RTTlsGetEx(RTTLS iTls, void **ppvValue)
|
|---|
| 84 | {
|
|---|
| 85 | void *pv = TlsGetValue((DWORD)iTls);
|
|---|
| 86 | if (pv)
|
|---|
| 87 | {
|
|---|
| 88 | *ppvValue = pv;
|
|---|
| 89 | return VINF_SUCCESS;
|
|---|
| 90 | }
|
|---|
| 91 |
|
|---|
| 92 | /* TlsGetValue always updates last error */
|
|---|
| 93 | *ppvValue = NULL;
|
|---|
| 94 | return RTErrConvertFromWin32(GetLastError());
|
|---|
| 95 | }
|
|---|
| 96 |
|
|---|
| 97 |
|
|---|
| 98 | RTR3DECL(int) RTTlsSet(RTTLS iTls, void *pvValue)
|
|---|
| 99 | {
|
|---|
| 100 | if (TlsSetValue((DWORD)iTls, pvValue))
|
|---|
| 101 | return VINF_SUCCESS;
|
|---|
| 102 | return RTErrConvertFromWin32(GetLastError());
|
|---|
| 103 | }
|
|---|
| 104 |
|
|---|
