llvm-6502/lib/System/Win32/ThreadLocal.inc
2010-07-28 22:49:43 +00:00

54 lines
1.5 KiB
C++

//= llvm/System/Win32/ThreadLocal.inc - Win32 Thread Local Data -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Win32 specific (non-pthread) ThreadLocal class.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only generic Win32 code that
//=== is guaranteed to work on *all* Win32 variants.
//===----------------------------------------------------------------------===//
#include "Win32.h"
#include "llvm/System/ThreadLocal.h"
namespace llvm {
using namespace sys;
ThreadLocalImpl::ThreadLocalImpl() {
DWORD* tls = new DWORD;
*tls = TlsAlloc();
assert(*tls != TLS_OUT_OF_INDEXES);
data = tls;
}
ThreadLocalImpl::~ThreadLocalImpl() {
DWORD* tls = static_cast<DWORD*>(data);
TlsFree(*tls);
delete tls;
}
const void* ThreadLocalImpl::getInstance() {
DWORD* tls = static_cast<DWORD*>(data);
return TlsGetValue(*tls);
}
void ThreadLocalImpl::setInstance(const void* d){
DWORD* tls = static_cast<DWORD*>(data);
int errorcode = TlsSetValue(*tls, const_cast<void*>(d));
assert(errorcode != 0);
}
void ThreadLocalImpl::removeInstance() {
setInstance(0);
}
}