llvm/llvm/lib/Support/ManagedStatic.cpp

//===-- ManagedStatic.cpp - Static Global wrapper -------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the ManagedStatic class and llvm_shutdown().
//
//===----------------------------------------------------------------------===//

#include "llvm/Support/ManagedStatic.h"
#include "llvm/Config/config.h"
#include "llvm/Support/Threading.h"
#include <cassert>
#include <mutex>
usingnamespacellvm;

static const ManagedStaticBase *StaticList = …;

static std::recursive_mutex *getManagedStaticMutex() { … }

void ManagedStaticBase::RegisterManagedStatic(void *(*Creator)(),
                                              void (*Deleter)(void*)) const { … }

void ManagedStaticBase::destroy() const { … }

/// llvm_shutdown - Deallocate and destroy all ManagedStatic variables.
/// IMPORTANT: it's only safe to call llvm_shutdown() in single thread,
/// without any other threads executing LLVM APIs.
/// llvm_shutdown() should be the last use of LLVM APIs.
void llvm::llvm_shutdown() { … }