mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
29a60e6deb
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201258 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
//= llvm/Support/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 "WindowsSupport.h"
|
|
#include "llvm/Support/ThreadLocal.h"
|
|
|
|
namespace llvm {
|
|
using namespace sys;
|
|
|
|
ThreadLocalImpl::ThreadLocalImpl() : data() {
|
|
typedef int SIZE_TOO_BIG[sizeof(DWORD) <= sizeof(data) ? 1 : -1];
|
|
DWORD* tls = reinterpret_cast<DWORD*>(&data);
|
|
*tls = TlsAlloc();
|
|
assert(*tls != TLS_OUT_OF_INDEXES);
|
|
}
|
|
|
|
ThreadLocalImpl::~ThreadLocalImpl() {
|
|
DWORD* tls = reinterpret_cast<DWORD*>(&data);
|
|
TlsFree(*tls);
|
|
}
|
|
|
|
const void* ThreadLocalImpl::getInstance() {
|
|
DWORD* tls = reinterpret_cast<DWORD*>(&data);
|
|
return TlsGetValue(*tls);
|
|
}
|
|
|
|
void ThreadLocalImpl::setInstance(const void* d){
|
|
DWORD* tls = reinterpret_cast<DWORD*>(&data);
|
|
int errorcode = TlsSetValue(*tls, const_cast<void*>(d));
|
|
assert(errorcode != 0);
|
|
(void)errorcode;
|
|
}
|
|
|
|
void ThreadLocalImpl::removeInstance() {
|
|
setInstance(0);
|
|
}
|
|
|
|
}
|