1/* 2 * Copyright 2012, 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 17#ifndef A_NETWORK_SESSION_H_ 18 19#define A_NETWORK_SESSION_H_ 20 21#include <media/stagefright/foundation/ABase.h> 22#include <utils/KeyedVector.h> 23#include <utils/RefBase.h> 24#include <utils/Thread.h> 25 26#include <netinet/in.h> 27 28namespace android { 29 30struct AMessage; 31 32// Helper class to manage a number of live sockets (datagram and stream-based) 33// on a single thread. Clients are notified about activity through AMessages. 34struct ANetworkSession : public RefBase { 35 ANetworkSession(); 36 37 status_t start(); 38 status_t stop(); 39 40 status_t createRTSPClient( 41 const char *host, unsigned port, const sp<AMessage> ¬ify, 42 int32_t *sessionID); 43 44 status_t createRTSPServer( 45 const struct in_addr &addr, unsigned port, 46 const sp<AMessage> ¬ify, int32_t *sessionID); 47 48 status_t createUDPSession( 49 unsigned localPort, const sp<AMessage> ¬ify, int32_t *sessionID); 50 51 status_t createUDPSession( 52 unsigned localPort, 53 const char *remoteHost, 54 unsigned remotePort, 55 const sp<AMessage> ¬ify, 56 int32_t *sessionID); 57 58 status_t connectUDPSession( 59 int32_t sessionID, const char *remoteHost, unsigned remotePort); 60 61 // passive 62 status_t createTCPDatagramSession( 63 const struct in_addr &addr, unsigned port, 64 const sp<AMessage> ¬ify, int32_t *sessionID); 65 66 // active 67 status_t createTCPDatagramSession( 68 unsigned localPort, 69 const char *remoteHost, 70 unsigned remotePort, 71 const sp<AMessage> ¬ify, 72 int32_t *sessionID); 73 74 status_t destroySession(int32_t sessionID); 75 76 status_t sendRequest( 77 int32_t sessionID, const void *data, ssize_t size = -1); 78 79 enum NotificationReason { 80 kWhatError, 81 kWhatConnected, 82 kWhatClientConnected, 83 kWhatData, 84 kWhatDatagram, 85 kWhatBinaryData, 86 }; 87 88protected: 89 virtual ~ANetworkSession(); 90 91private: 92 struct NetworkThread; 93 struct Session; 94 95 Mutex mLock; 96 sp<Thread> mThread; 97 98 int32_t mNextSessionID; 99 100 int mPipeFd[2]; 101 102 KeyedVector<int32_t, sp<Session> > mSessions; 103 104 enum Mode { 105 kModeCreateUDPSession, 106 kModeCreateTCPDatagramSessionPassive, 107 kModeCreateTCPDatagramSessionActive, 108 kModeCreateRTSPServer, 109 kModeCreateRTSPClient, 110 }; 111 status_t createClientOrServer( 112 Mode mode, 113 const struct in_addr *addr, 114 unsigned port, 115 const char *remoteHost, 116 unsigned remotePort, 117 const sp<AMessage> ¬ify, 118 int32_t *sessionID); 119 120 void threadLoop(); 121 void interrupt(); 122 123 static status_t MakeSocketNonBlocking(int s); 124 125 DISALLOW_EVIL_CONSTRUCTORS(ANetworkSession); 126}; 127 128} // namespace android 129 130#endif // A_NETWORK_SESSION_H_ 131