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author | HyungKyu Song <hk76.song@samsung.com> | 2013-02-16 00:53:36 +0900 |
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committer | HyungKyu Song <hk76.song@samsung.com> | 2013-02-16 00:53:36 +0900 |
commit | 74e42fb0242c25c1fa46e45fcf04e3c88ab40620 (patch) | |
tree | ebbbe8a8120031a0a1340161064b1e1a2b2bc2ef /ipc/ipc_channel_handle.h | |
parent | 98fbfad8ece16f88391165f4ad849e87e246bbdb (diff) | |
download | chromium-74e42fb0242c25c1fa46e45fcf04e3c88ab40620.tar.gz chromium-74e42fb0242c25c1fa46e45fcf04e3c88ab40620.tar.bz2 chromium-74e42fb0242c25c1fa46e45fcf04e3c88ab40620.zip |
Diffstat (limited to 'ipc/ipc_channel_handle.h')
-rw-r--r-- | ipc/ipc_channel_handle.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/ipc/ipc_channel_handle.h b/ipc/ipc_channel_handle.h new file mode 100644 index 000000000000..ba034cca23b8 --- /dev/null +++ b/ipc/ipc_channel_handle.h @@ -0,0 +1,52 @@ +// Copyright (c) 2011 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef IPC_IPC_CHANNEL_HANDLE_H_ +#define IPC_IPC_CHANNEL_HANDLE_H_ +#pragma once + +#include <string> + +#include "build/build_config.h" + +#if defined(OS_POSIX) +#include "base/file_descriptor_posix.h" +#endif + +// On Windows, any process can create an IPC channel and others can fetch +// it by name. We pass around the channel names over IPC. +// On POSIX, we instead pass around handles to channel endpoints via IPC. +// When it's time to IPC a new channel endpoint around, we send both the +// channel name as well as a base::FileDescriptor, which is itself a special +// type that knows how to copy a socket endpoint over IPC. +// +// In sum, when passing a handle to a channel over IPC, use this data structure +// to work on both Windows and POSIX. + +namespace IPC { + +struct ChannelHandle { + // Note that serialization for this object is defined in the ParamTraits + // template specialization in ipc_message_utils.h. + ChannelHandle() {} + // The name that is passed in should be an absolute path for Posix. + // Otherwise there may be a problem in IPC communication between + // processes with different working directories. + ChannelHandle(const std::string& n) : name(n) {} + ChannelHandle(const char* n) : name(n) {} +#if defined(OS_POSIX) + ChannelHandle(const std::string& n, const base::FileDescriptor& s) + : name(n), socket(s) {} +#endif // defined(OS_POSIX) + + std::string name; +#if defined(OS_POSIX) + base::FileDescriptor socket; +#endif // defined(OS_POSIX) + +}; + +} // namespace IPC + +#endif // IPC_IPC_CHANNEL_HANDLE_H_ |