55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
// Copyright 2015 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef IPC_HANDLE_WIN_H_
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#define IPC_HANDLE_WIN_H_
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#include <windows.h>
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#include <string>
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#include "ipc/ipc_message_support_export.h"
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#include "ipc/ipc_param_traits.h"
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namespace base {
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class Pickle;
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class PickleIterator;
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} // namespace base
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namespace IPC {
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// HandleWin is a wrapper around a Windows HANDLE that can be transported
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// across Chrome IPC channels that support attachment brokering. The HANDLE will
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// be duplicated into the destination process.
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//
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// The ownership semantics for the underlying |handle_| are complex. See
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// ipc/mach_port_mac.h (the OSX analog of this class) for an extensive
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// discussion.
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class IPC_MESSAGE_SUPPORT_EXPORT HandleWin {
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public:
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// Default constructor makes an invalid HANDLE.
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HandleWin();
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explicit HandleWin(const HANDLE& handle);
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HANDLE get_handle() const { return handle_; }
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void set_handle(HANDLE handle) { handle_ = handle; }
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private:
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HANDLE handle_;
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};
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template <>
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struct IPC_MESSAGE_SUPPORT_EXPORT ParamTraits<HandleWin> {
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typedef HandleWin param_type;
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static void Write(base::Pickle* m, const param_type& p);
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static bool Read(const base::Pickle* m,
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base::PickleIterator* iter,
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param_type* p);
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static void Log(const param_type& p, std::string* l);
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};
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} // namespace IPC
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#endif // IPC_HANDLE_WIN_H_
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