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/* $Id: tls-win.cpp 34507 2010-11-30 13:14:14Z vboxsync $ */
/** @file
* IPRT - Thread Local Storage (TLS), Win32.
*/
/*
* Copyright (C) 2008 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 <Windows.h>
#include <iprt/thread.h>
#include <iprt/log.h>
#include <iprt/assert.h>
#include <iprt/err.h>
#include "internal/thread.h"
AssertCompile(sizeof(RTTLS) >= sizeof(DWORD));
RTR3DECL(RTTLS) RTTlsAlloc(void)
{
DWORD iTls = TlsAlloc();
return iTls != TLS_OUT_OF_INDEXES ? (RTTLS)iTls : NIL_RTTLS;
}
RTR3DECL(int) RTTlsAllocEx(PRTTLS piTls, PFNRTTLSDTOR pfnDestructor)
{
AssertReturn(!pfnDestructor, VERR_NOT_SUPPORTED);
DWORD iTls = TlsAlloc();
if (iTls != TLS_OUT_OF_INDEXES)
{
Assert((RTTLS)iTls != NIL_RTTLS);
*piTls = (RTTLS)iTls;
Assert((DWORD)*piTls == iTls);
return VINF_SUCCESS;
}
return VERR_NO_MEMORY;
}
RTR3DECL(int) RTTlsFree(RTTLS iTls)
{
if (iTls == NIL_RTTLS)
return VINF_SUCCESS;
if (TlsFree((DWORD)iTls))
return VINF_SUCCESS;
return RTErrConvertFromWin32(GetLastError());
}
RTR3DECL(void *) RTTlsGet(RTTLS iTls)
{
return TlsGetValue((DWORD)iTls);
}
RTR3DECL(int) RTTlsGetEx(RTTLS iTls, void **ppvValue)
{
void *pv = TlsGetValue((DWORD)iTls);
if (pv)
{
*ppvValue = pv;
return VINF_SUCCESS;
}
/* TlsGetValue always updates last error */
*ppvValue = NULL;
return RTErrConvertFromWin32(GetLastError());
}
RTR3DECL(int) RTTlsSet(RTTLS iTls, void *pvValue)
{
if (TlsSetValue((DWORD)iTls, pvValue))
return VINF_SUCCESS;
return RTErrConvertFromWin32(GetLastError());
}
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