1 /*
2  * Copyright (C) 2008-2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #ifndef _SOCKETLISTENER_H
17 #define _SOCKETLISTENER_H
18 
19 #include <pthread.h>
20 
21 #include <sysutils/SocketClient.h>
22 #include "SocketClientCommand.h"
23 
24 class SocketListener {
25     bool                    mListen;
26     const char              *mSocketName;
27     int                     mSock;
28     SocketClientCollection  *mClients;
29     pthread_mutex_t         mClientsLock;
30     int                     mCtrlPipe[2];
31     pthread_t               mThread;
32     bool                    mUseCmdNum;
33 
34 public:
35     SocketListener(const char *socketName, bool listen);
36     SocketListener(const char *socketName, bool listen, bool useCmdNum);
37     SocketListener(int socketFd, bool listen);
38 
39     virtual ~SocketListener();
40     int startListener();
41     int startListener(int backlog);
42     int stopListener();
43 
44     void sendBroadcast(int code, const char *msg, bool addErrno);
45 
46     void runOnEachSocket(SocketClientCommand *command);
47 
release(SocketClient * c)48     bool release(SocketClient *c) { return release(c, true); }
49 
50 protected:
51     virtual bool onDataAvailable(SocketClient *c) = 0;
52 
53 private:
54     bool release(SocketClient *c, bool wakeup);
55     static void *threadStart(void *obj);
56     void runListener();
57     void init(const char *socketName, int socketFd, bool listen, bool useCmdNum);
58 };
59 #endif
60