crashpad/util/mach/child_port_server.h
Mark Mentovai 04aaa36026 Add ChildPortServer, a MachMessageServer::Interface implementation for
the child_port subsystem.

Common routines shared with the ExcServer family of classes have been
moved to a new file, where they can be shared between different
MachMessageServer::Interface implementations.

TEST=util_test ChildPortServer.*:MachMessageUtil.*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/754123002
2014-11-25 14:29:46 -05:00

75 lines
2.5 KiB
C++

// Copyright 2014 The Crashpad Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef CRASHPAD_UTIL_MACH_CHILD_PORT_SERVER_H_
#define CRASHPAD_UTIL_MACH_CHILD_PORT_SERVER_H_
#include <mach/mach.h>
#include "base/basictypes.h"
#include "util/mach/child_port_types.h"
#include "util/mach/mach_message_server.h"
namespace crashpad {
//! \brief A server interface for the `child_port` Mach subsystem.
class ChildPortServer : public MachMessageServer::Interface {
public:
//! \brief An interface that the request message that is a part of the
//! `child_port` Mach subsystem can be dispatched to.
class Interface {
public:
//! \brief Handles check-ins sent by `child_port_check_in()`.
//!
//! This behaves equivalently to a `handle_child_port_check_in()` function
//! used with `child_port_server()`.
//!
//! \param[out] destroy_request `true` if the request message is to be
//! destroyed even when this method returns success. See
//! MachMessageServer::Interface.
virtual kern_return_t HandleChildPortCheckIn(
child_port_server_t server,
const child_port_token_t token,
mach_port_t port,
mach_msg_type_name_t right_type,
bool* destroy_complex_request) = 0;
protected:
~Interface() {}
};
//! \brief Constructs an object of this class.
//!
//! \param[in] interface The interface to dispatch requests to. Weak.
explicit ChildPortServer(Interface* interface);
// MachMessageServer::Interface:
bool MachMessageServerFunction(const mach_msg_header_t* in_header,
mach_msg_header_t* out_header,
bool* destroy_complex_request) override;
mach_msg_size_t MachMessageServerRequestSize() override;
mach_msg_size_t MachMessageServerReplySize() override;
private:
Interface* interface_; // weak
DISALLOW_COPY_AND_ASSIGN(ChildPortServer);
};
} // namespace crashpad
#endif // CRASHPAD_UTIL_MACH_CHILD_PORT_SERVER_H_