1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/security/sandbox/chromium/base/file_descriptor_posix.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,45 @@
1.4 +// Copyright (c) 2006-2009 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 +#ifndef BASE_FILE_DESCRIPTOR_POSIX_H_
1.9 +#define BASE_FILE_DESCRIPTOR_POSIX_H_
1.10 +
1.11 +namespace base {
1.12 +
1.13 +// -----------------------------------------------------------------------------
1.14 +// We introduct a special structure for file descriptors in order that we are
1.15 +// able to use template specialisation to special-case their handling.
1.16 +//
1.17 +// WARNING: (Chromium only) There are subtleties to consider if serialising
1.18 +// these objects over IPC. See comments in ipc/ipc_message_utils.h
1.19 +// above the template specialisation for this structure.
1.20 +// -----------------------------------------------------------------------------
1.21 +struct FileDescriptor {
1.22 + FileDescriptor()
1.23 + : fd(-1),
1.24 + auto_close(false) { }
1.25 +
1.26 + FileDescriptor(int ifd, bool iauto_close)
1.27 + : fd(ifd),
1.28 + auto_close(iauto_close) { }
1.29 +
1.30 + bool operator==(const FileDescriptor& other) const {
1.31 + return (fd == other.fd && auto_close == other.auto_close);
1.32 + }
1.33 +
1.34 + // A comparison operator so that we can use these as keys in a std::map.
1.35 + bool operator<(const FileDescriptor& other) const {
1.36 + return other.fd < fd;
1.37 + }
1.38 +
1.39 + int fd;
1.40 + // If true, this file descriptor should be closed after it has been used. For
1.41 + // example an IPC system might interpret this flag as indicating that the
1.42 + // file descriptor it has been given should be closed after use.
1.43 + bool auto_close;
1.44 +};
1.45 +
1.46 +} // namespace base
1.47 +
1.48 +#endif // BASE_FILE_DESCRIPTOR_POSIX_H_
