xref: /third_party/gn/src/util/atomic_write.h (revision 6d528ed9) 
1// Copyright (c) 2022 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef TOOLS_GN_ATOMIC_WRITE_H_
6#define TOOLS_GN_ATOMIC_WRITE_H_
7
8#include "base/files/file_path.h"
9
10namespace util {
11
12// Writes the given buffer into the file, overwriting any data that was
13// previously there. The write is performed atomically by first writing the
14// contents to a temporary file and then moving it into place. Returns the
15// number of bytes written, or -1 on error.
16int WriteFileAtomically(const base::FilePath& filename,
17                        const char* data,
18                        int size);
19
20}  // namespace util
21
22#endif  // TOOLS_GN_ATOMIC_WRITE_H_
23