DirectXShaderCompiler/lib/Support/ThreadLocal.cpp at main · microsoft/DirectXShaderCompiler · GitHub

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//===- ThreadLocal.cpp - 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 llvm::sys::ThreadLocal class.

//===----------------------------------------------------------------------===//

#include "llvm/Config/config.h"

#include "llvm/Support/Compiler.h"

#include "llvm/Support/ThreadLocal.h"

//===----------------------------------------------------------------------===//

//=== WARNING: Implementation here must contain only TRULY operating system

//=== independent code.

//===----------------------------------------------------------------------===//

#if !defined(LLVM_ENABLE_THREADS) || LLVM_ENABLE_THREADS == 0

// Define all methods as no-ops if threading is explicitly disabled

namespace llvm {

using namespace sys;

ThreadLocalImpl::ThreadLocalImpl() : data() { }

ThreadLocalImpl::~ThreadLocalImpl() { }

void ThreadLocalImpl::setInstance(const void* d) {

static_assert(sizeof(d) <= sizeof(data), "size too big");

void **pd = reinterpret_cast<void**>(&data);

*pd = const_cast<void*>(d);

}

void *ThreadLocalImpl::getInstance() {

void **pd = reinterpret_cast<void**>(&data);

return *pd;

}

void ThreadLocalImpl::removeInstance() {

setInstance(nullptr);

}

#elif defined(LLVM_ON_UNIX)

#include "Unix/ThreadLocal.inc"

#elif defined( LLVM_ON_WIN32)

#include "Windows/ThreadLocal.inc"

#else

#warning Neither LLVM_ON_UNIX nor LLVM_ON_WIN32 set in Support/ThreadLocal.cpp

#endif

DirectXShaderCompiler/lib/Support/ThreadLocal.cpp at main · microsoft/DirectXShaderCompiler · GitHub

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