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ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
//===- ThreadLocal.cpp - Thread Local Data ----------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the llvm::sys::ThreadLocal class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/ThreadLocal.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/Support/Compiler.h"
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//===----------------------------------------------------------------------===//
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//=== WARNING: Implementation here must contain only TRULY operating system
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//=== independent code.
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//===----------------------------------------------------------------------===//
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#if !defined(LLVM_ENABLE_THREADS) || LLVM_ENABLE_THREADS == 0
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// Define all methods as no-ops if threading is explicitly disabled
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namespace llvm {
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using namespace sys;
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ThreadLocalImpl::ThreadLocalImpl() : data() { }
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ThreadLocalImpl::~ThreadLocalImpl() { }
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void ThreadLocalImpl::setInstance(const void* d) {
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static_assert(sizeof(d) <= sizeof(data), "size too big");
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void **pd = reinterpret_cast<void**>(&data);
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*pd = const_cast<void*>(d);
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}
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void *ThreadLocalImpl::getInstance() {
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void **pd = reinterpret_cast<void**>(&data);
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return *pd;
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}
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void ThreadLocalImpl::removeInstance() {
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setInstance(nullptr);
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}
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}
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#elif defined(LLVM_ON_UNIX)
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#include "Unix/ThreadLocal.inc"
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#elif defined( _WIN32)
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#include "Windows/ThreadLocal.inc"
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#else
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#warning Neither LLVM_ON_UNIX nor _WIN32 set in Support/ThreadLocal.cpp
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#endif
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