108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2017 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* 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 ANDROID_EMULATORSOCKETCOMM_SOCKETCOMM_H
|
||
|
|
#define ANDROID_EMULATORSOCKETCOMM_SOCKETCOMM_H
|
||
|
|
|
||
|
|
#include <mutex>
|
||
|
|
#include <thread>
|
||
|
|
#include <vector>
|
||
|
|
#include "CommConn.h"
|
||
|
|
|
||
|
|
namespace android {
|
||
|
|
namespace hardware {
|
||
|
|
namespace automotive {
|
||
|
|
namespace vehicle {
|
||
|
|
namespace V2_0 {
|
||
|
|
|
||
|
|
namespace impl {
|
||
|
|
|
||
|
|
class SocketConn;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* SocketComm opens a socket, and listens for connections from clients. Typically the client will be
|
||
|
|
* adb's TCP port-forwarding to enable a host PC to connect to the VehicleHAL.
|
||
|
|
*/
|
||
|
|
class SocketComm : public MessageSender {
|
||
|
|
public:
|
||
|
|
SocketComm(MessageProcessor* messageProcessor);
|
||
|
|
virtual ~SocketComm();
|
||
|
|
|
||
|
|
void start() override;
|
||
|
|
void stop() override ;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Serialized and send the given message to all connected clients.
|
||
|
|
*/
|
||
|
|
void sendMessage(vhal_proto::EmulatorMessage const& msg) override;
|
||
|
|
|
||
|
|
private:
|
||
|
|
int mListenFd;
|
||
|
|
std::unique_ptr<std::thread> mListenThread;
|
||
|
|
std::vector<std::unique_ptr<SocketConn>> mOpenConnections;
|
||
|
|
MessageProcessor* mMessageProcessor;
|
||
|
|
std::mutex mMutex;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Opens the socket and begins listening.
|
||
|
|
*
|
||
|
|
* @return bool Returns true on success.
|
||
|
|
*/
|
||
|
|
bool listen();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Blocks and waits for a connection from a client, returns a new SocketConn with the connection
|
||
|
|
* or null, if the connection has been closed.
|
||
|
|
*
|
||
|
|
* @return int Returns fd or socket number if connection is successful.
|
||
|
|
* Otherwise, returns -1 if no connection is available.
|
||
|
|
*/
|
||
|
|
SocketConn* accept();
|
||
|
|
|
||
|
|
void listenThread();
|
||
|
|
|
||
|
|
void removeClosedConnections();
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* SocketConn represents a single connection to a client.
|
||
|
|
*/
|
||
|
|
class SocketConn : public CommConn {
|
||
|
|
public:
|
||
|
|
SocketConn(MessageProcessor* messageProcessor, int sfd);
|
||
|
|
virtual ~SocketConn() = default;
|
||
|
|
|
||
|
|
void stop() override;
|
||
|
|
|
||
|
|
inline bool isOpen() override { return mSockFd > 0; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
int mSockFd;
|
||
|
|
|
||
|
|
std::vector<uint8_t> read() override;
|
||
|
|
int write(const std::vector<uint8_t>& data) override;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // impl
|
||
|
|
|
||
|
|
} // namespace V2_0
|
||
|
|
} // namespace vehicle
|
||
|
|
} // namespace automotive
|
||
|
|
} // namespace hardware
|
||
|
|
} // namespace android
|
||
|
|
|
||
|
|
#endif // ANDROID_EMULATORSOCKETCOMM_SOCKETCOMM_H
|