llvm/llvm/lib/Support/Caching.cpp

//===-Caching.cpp - LLVM Local File Cache ---------------------------------===//
//
// 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 localCache function, which simplifies creating,
// adding to, and querying a local file system cache. localCache takes care of
// periodically pruning older files from the cache using a CachePruningPolicy.
//
//===----------------------------------------------------------------------===//

#include "llvm/Support/Caching.h"
#include "llvm/Support/Errc.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"

#if !defined(_MSC_VER) && !defined(__MINGW32__)
#include <unistd.h>
#else
#include <io.h>
#endif

usingnamespacellvm;

Expected<FileCache> llvm::localCache(const Twine &CacheNameRef,
                                     const Twine &TempFilePrefixRef,
                                     const Twine &CacheDirectoryPathRef,
                                     AddBufferFn AddBuffer) { … }