1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/platform_file_posix.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,68 @@
1.4 +// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#include "base/platform_file.h"
1.9 +
1.10 +#include <sys/stat.h>
1.11 +#include <fcntl.h>
1.12 +#include <errno.h>
1.13 +#ifdef ANDROID
1.14 +#include <linux/stat.h>
1.15 +#endif
1.16 +
1.17 +#include "base/logging.h"
1.18 +#include "base/string_util.h"
1.19 +
1.20 +namespace base {
1.21 +
1.22 +// TODO(erikkay): does it make sense to support PLATFORM_FILE_EXCLUSIVE_* here?
1.23 +PlatformFile CreatePlatformFile(const std::wstring& name,
1.24 + int flags,
1.25 + bool* created) {
1.26 + int open_flags = 0;
1.27 + if (flags & PLATFORM_FILE_CREATE)
1.28 + open_flags = O_CREAT | O_EXCL;
1.29 +
1.30 + if (flags & PLATFORM_FILE_CREATE_ALWAYS) {
1.31 + DCHECK(!open_flags);
1.32 + open_flags = O_CREAT | O_TRUNC;
1.33 + }
1.34 +
1.35 + if (!open_flags && !(flags & PLATFORM_FILE_OPEN) &&
1.36 + !(flags & PLATFORM_FILE_OPEN_ALWAYS)) {
1.37 + NOTREACHED();
1.38 + errno = ENOTSUP;
1.39 + return kInvalidPlatformFileValue;
1.40 + }
1.41 +
1.42 + if (flags & PLATFORM_FILE_WRITE && flags & PLATFORM_FILE_READ) {
1.43 + open_flags |= O_RDWR;
1.44 + } else if (flags & PLATFORM_FILE_WRITE) {
1.45 + open_flags |= O_WRONLY;
1.46 + } else if (!(flags & PLATFORM_FILE_READ)) {
1.47 + NOTREACHED();
1.48 + }
1.49 +
1.50 + DCHECK(O_RDONLY == 0);
1.51 +
1.52 + int descriptor = open(WideToUTF8(name).c_str(), open_flags,
1.53 + S_IRUSR | S_IWUSR);
1.54 +
1.55 + if (flags & PLATFORM_FILE_OPEN_ALWAYS) {
1.56 + if (descriptor > 0) {
1.57 + if (created)
1.58 + *created = false;
1.59 + } else {
1.60 + open_flags |= O_CREAT;
1.61 + descriptor = open(WideToUTF8(name).c_str(), open_flags,
1.62 + S_IRUSR | S_IWUSR);
1.63 + if (created && descriptor > 0)
1.64 + *created = true;
1.65 + }
1.66 + }
1.67 +
1.68 + return descriptor;
1.69 +}
1.70 +
1.71 +} // namespace base
