1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_TOOLS_FLIP_SERVER_SM_CONNECTION_H_ 6 #define NET_TOOLS_FLIP_SERVER_SM_CONNECTION_H_ 7 8 #include <arpa/inet.h> // in_addr_t 9 #include <time.h> 10 11 #include <list> 12 #include <string> 13 14 #include "net/tools/flip_server/create_listener.h" 15 #include "net/tools/flip_server/epoll_server.h" 16 #include "net/tools/flip_server/mem_cache.h" 17 #include "net/tools/flip_server/ring_buffer.h" 18 #include "net/tools/flip_server/sm_interface.h" 19 #include "openssl/ssl.h" 20 21 namespace net { 22 23 class FlipAcceptor; 24 class MemoryCache; 25 struct SSLState; 26 27 // A frame of data to be sent. 28 class DataFrame { 29 public: 30 const char* data; 31 size_t size; 32 bool delete_when_done; 33 size_t index; DataFrame()34 DataFrame() : data(NULL), size(0), delete_when_done(false), index(0) {} ~DataFrame()35 virtual ~DataFrame() { 36 if (delete_when_done) 37 delete[] data; 38 } 39 }; 40 41 typedef std::list<DataFrame*> OutputList; 42 43 class SMConnection : public SMConnectionInterface, 44 public EpollCallbackInterface, 45 public NotifierInterface { 46 public: 47 virtual ~SMConnection(); 48 49 static SMConnection* NewSMConnection(EpollServer* epoll_server, 50 SSLState *ssl_state, 51 MemoryCache* memory_cache, 52 FlipAcceptor *acceptor, 53 std::string log_prefix); 54 55 // TODO(mbelshe): Make these private. 56 time_t last_read_time_; 57 std::string server_ip_; 58 std::string server_port_; 59 60 virtual EpollServer* epoll_server(); output_list()61 OutputList* output_list() { return &output_list_; } memory_cache()62 MemoryCache* memory_cache() { return memory_cache_; } 63 virtual void ReadyToSend(); 64 void EnqueueDataFrame(DataFrame* df); 65 fd()66 int fd() const { return fd_; } initialized()67 bool initialized() const { return initialized_; } client_ip()68 std::string client_ip() const { return client_ip_; } 69 70 void InitSMConnection(SMConnectionPoolInterface* connection_pool, 71 SMInterface* sm_interface, 72 EpollServer* epoll_server, 73 int fd, 74 std::string server_ip, 75 std::string server_port, 76 std::string remote_ip, 77 bool use_ssl); 78 79 void CorkSocket(); 80 void UncorkSocket(); 81 82 int Send(const char* data, int len, int flags); 83 84 // EpollCallbackInterface interface. 85 virtual void OnRegistration(EpollServer* eps, int fd, int event_mask); OnModification(int fd,int event_mask)86 virtual void OnModification(int fd, int event_mask) {} 87 virtual void OnEvent(int fd, EpollEvent* event); 88 virtual void OnUnregistration(int fd, bool replaced); 89 virtual void OnShutdown(EpollServer* eps, int fd); 90 91 // NotifierInterface interface. Notify()92 virtual void Notify() {} 93 94 void Cleanup(const char* cleanup); 95 96 // Flag indicating if we should force spdy on all connections. force_spdy()97 static bool force_spdy() { return force_spdy_; } set_force_spdy(bool value)98 static void set_force_spdy(bool value) { force_spdy_ = value; } 99 100 private: 101 // Decide if SPDY was negotiated. 102 bool WasSpdyNegotiated(); 103 104 // Initialize the protocol interfaces we'll need for this connection. 105 // Returns true if successful, false otherwise. 106 bool SetupProtocolInterfaces(); 107 108 bool DoRead(); 109 bool DoWrite(); 110 bool DoConsumeReadData(); 111 void Reset(); 112 113 void HandleEvents(); 114 void HandleResponseFullyRead(); 115 116 protected: 117 friend std::ostream& operator<<(std::ostream& os, const SMConnection& c) { 118 os << &c << "\n"; 119 return os; 120 } 121 122 private: 123 SMConnection(EpollServer* epoll_server, 124 SSLState* ssl_state, 125 MemoryCache* memory_cache, 126 FlipAcceptor* acceptor, 127 std::string log_prefix); 128 int fd_; 129 int events_; 130 131 bool registered_in_epoll_server_; 132 bool initialized_; 133 bool protocol_detected_; 134 bool connection_complete_; 135 136 SMConnectionPoolInterface* connection_pool_; 137 138 EpollServer *epoll_server_; 139 SSLState *ssl_state_; 140 MemoryCache* memory_cache_; 141 FlipAcceptor *acceptor_; 142 std::string client_ip_; 143 144 RingBuffer read_buffer_; 145 146 OutputList output_list_; 147 SMInterface* sm_spdy_interface_; 148 SMInterface* sm_http_interface_; 149 SMInterface* sm_streamer_interface_; 150 SMInterface* sm_interface_; 151 std::string log_prefix_; 152 153 size_t max_bytes_sent_per_dowrite_; 154 155 SSL* ssl_; 156 157 static bool force_spdy_; 158 }; 159 160 } // namespace net 161 162 #endif // NET_TOOLS_FLIP_SERVER_SM_CONNECTION_H_ 163 164