2 * @file protocol_module_sessionless.h
3 * @brief protocol module sessionless header file.
5 * L7VSD: Linux Virtual Server for Layer7 Load Balancing
6 * Copyright (C) 2009 NTT COMWARE Corporation.
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
23 **********************************************************************/
25 #include <boost/thread/mutex.hpp>
26 #include "http_protocol_module_base.h"
28 #ifndef PROTOCOL_MODULE_SESSIONLESS_H
29 #define PROTOCOL_MODULE_SESSIONLESS_H
31 #define MAX_OPTION_SIZE 128
32 #define MAX_SESSIONLESS_MODULE_BUFFER_SIZE (8190 + MAX_BUFFER_SIZE)
37 class protocol_module_sessionless : public http_protocol_module_base
50 size_t insert_posission;
55 SEND_STATUS_TAG status;
57 size_t send_rest_size;
58 size_t send_possible_size;
62 boost::asio::ip::tcp::endpoint send_endpoint;
63 std::list<edit_data> edit_data_list;
70 size_t recive_buffer_max_size;
71 size_t recive_buffer_rest_size;
72 std::list<send_status> send_status_list;
75 recive_buffer1 = NULL;
76 recive_buffer2 = NULL;
78 recive_buffer_max_size = 0;
79 recive_buffer_rest_size = 0;
83 if (recive_buffer1 != NULL)
85 delete [] recive_buffer1;
86 recive_buffer1 = NULL;
89 if (recive_buffer2 != NULL)
91 delete [] recive_buffer2;
92 recive_buffer2 = NULL;
96 recive_buffer_max_size = 0;
97 recive_buffer_rest_size = 0;
102 struct session_thread_data_sessionless {
103 boost::thread::id thread_id;
105 boost::thread::id pair_thread_id;
106 std::map<boost::asio::ip::tcp::endpoint, recive_data> recive_data_map;
110 int sorryserver_switch_flag;
111 int realserver_switch_flag;
112 boost::asio::ip::tcp::endpoint target_endpoint;
113 boost::asio::ip::tcp::endpoint client_endpoint_tcp;
114 EVENT_TAG last_status;
117 typedef std::list<send_status>::iterator send_status_it;
118 typedef boost::shared_ptr<session_thread_data_sessionless> thread_data_ptr;
119 typedef std::map<boost::thread::id, thread_data_ptr>::iterator session_thread_data_map_it;
120 typedef std::map<boost::asio::ip::tcp::endpoint, recive_data>::iterator recive_data_map_it;
123 boost:: array<char,MAX_OPTION_SIZE> sorry_uri ;
124 std::map<boost::thread::id, thread_data_ptr> session_thread_data_map;
125 boost::mutex session_thread_data_map_mutex;
128 static const std::string MODULE_NAME;
130 static const int THREAD_DIVISION_UP_STREAM;
131 static const int THREAD_DIVISION_DOWN_STREAM;
133 static const int END_FLAG_OFF;
134 static const int END_FLAG_ON;
136 static const int ACCEPT_END_FLAG_OFF;
137 static const int ACCEPT_END_FLAG_ON;
139 static const int SORRY_FLAG_ON;
140 static const int SORRY_FLAG_OFF;
142 static const int SORRYSERVER_SWITCH_FLAG_OFF;
143 static const int SORRYSERVER_SWITCH_FLAG_ON;
145 static const int REALSERVER_SWITCH_FLAG_OFF;
146 static const int REALSERVER_SWITCH_FLAG_ON;
148 static const int EDIT_DIVISION_NO_EDIT;
149 static const int EDIT_DIVISION_EDIT;
151 static const int FORWARDED_FOR_OFF;
152 static const int FORWARDED_FOR_ON;
155 protocol_module_sessionless();
156 ~protocol_module_sessionless();
160 void replication_interrupt();
161 void initialize(rs_list_itr_func_type inlist_begin,
162 rs_list_itr_func_type inlist_end,
163 rs_list_itr_next_func_type inlist_next,
164 boost::function< void( void ) > inlist_lock,
165 boost::function< void( void ) > inlist_unlock);
168 check_message_result check_parameter(const std::vector<std::string>& args);
169 check_message_result set_parameter(const std::vector<std::string>& args);
170 check_message_result add_parameter(const std::vector<std::string>& args);
171 void get_option_info(std::string& option);
172 void handle_rslist_update();
173 void register_schedule(tcp_schedule_func_type inschedule);
174 void register_schedule(udp_schedule_func_type inschedule);
175 EVENT_TAG handle_session_initialize(const boost::thread::id up_thread_id, const boost::thread::id down_thread_id, const boost::asio::ip::tcp::endpoint& client_endpoint_tcp, const boost::asio::ip::udp::endpoint& client_endpoint_udp);
176 EVENT_TAG handle_session_finalize(const boost::thread::id up_thread_id, const boost::thread::id down_thread_id);
177 EVENT_TAG handle_accept(const boost::thread::id thread_id);
178 EVENT_TAG handle_client_recv(const boost::thread::id thread_id, const boost::array<char,MAX_BUFFER_SIZE>& recvbuffer, const size_t recvlen);
179 EVENT_TAG handle_realserver_select(const boost::thread::id thread_id, boost::asio::ip::tcp::endpoint& rs_endpoint);
180 EVENT_TAG handle_realserver_select(const boost::thread::id thread_id, boost::asio::ip::udp::endpoint& rs_endpoint, boost::array<char,MAX_BUFFER_SIZE>& sendbuffer, size_t& datalen);
181 EVENT_TAG handle_realserver_connect(const boost::thread::id thread_id, boost::array<char,MAX_BUFFER_SIZE>& sendbuffer, size_t& datalen);
182 EVENT_TAG handle_realserver_connection_fail(const boost::thread::id thread_id, const boost::asio::ip::tcp::endpoint& rs_endpoint);
183 EVENT_TAG handle_realserver_send(const boost::thread::id thread_id);
184 EVENT_TAG handle_sorryserver_select(const boost::thread::id thread_id, boost::asio::ip::tcp::endpoint& sorry_endpoint);
185 EVENT_TAG handle_sorryserver_connect(const boost::thread::id thread_id, boost::array<char,MAX_BUFFER_SIZE>& sendbuffer, size_t& datalen);
186 EVENT_TAG handle_sorryserver_connection_fail(const boost::thread::id thread_id, const boost::asio::ip::tcp::endpoint& sorry_endpoint);
187 EVENT_TAG handle_sorryserver_send(const boost::thread::id thread_id);
188 EVENT_TAG handle_realserver_recv(const boost::thread::id thread_id, const boost::asio::ip::tcp::endpoint& rs_endpoint, const boost::array<char,MAX_BUFFER_SIZE>& recvbuffer, const size_t recvlen);
189 EVENT_TAG handle_realserver_recv(const boost::thread::id thread_id, const boost::asio::ip::udp::endpoint& rs_endpoint, const boost::array<char,MAX_BUFFER_SIZE>& recvbuffer, const size_t recvlen);
190 EVENT_TAG handle_sorryserver_recv(const boost::thread::id thread_id, const boost::asio::ip::tcp::endpoint& sorry_endpoint, const boost::array<char, MAX_BUFFER_SIZE>& recvbuffer, const size_t recvlen);
191 EVENT_TAG handle_response_send_inform(const boost::thread::id thread_id);
192 EVENT_TAG handle_client_connection_check(const boost::thread::id thread_id, boost::array<char,MAX_BUFFER_SIZE>& sendbuffer, size_t& datalen);
193 EVENT_TAG handle_client_select(const boost::thread::id thread_id, boost::asio::ip::udp::endpoint& cl_endpoint, boost::array<char,MAX_BUFFER_SIZE>& sendbuffer, size_t& datalen);
194 EVENT_TAG handle_client_send(const boost::thread::id thread_id);
195 EVENT_TAG handle_client_disconnect(const boost::thread::id thread_id);
196 EVENT_TAG handle_sorry_enable(const boost::thread::id thread_id);
197 EVENT_TAG handle_sorry_disable(const boost::thread::id thread_id);
198 EVENT_TAG handle_realserver_disconnect(const boost::thread::id thread_id, const boost::asio::ip::tcp::endpoint& rs_endpoint);
199 EVENT_TAG handle_sorryserver_disconnect(const boost::thread::id thread_id, const boost::asio::ip::tcp::endpoint& sorry_endpoint);
200 EVENT_TAG handle_realserver_close(const boost::thread::id thread_id, const boost::asio::ip::udp::endpoint& rs_endpoint);
203 inline bool operator < (const protocol_module_sessionless::edit_data& lref, const protocol_module_sessionless::edit_data& rref)
205 return lref.insert_posission < rref.insert_posission;
208 class data_send_possible
211 inline bool operator () (const protocol_module_sessionless::send_status& send_status)
213 return send_status.status == protocol_module_sessionless::SEND_OK
214 && send_status.send_possible_size > 0;
218 class data_send_disable
221 inline bool operator () (const protocol_module_sessionless::send_status& send_status)
223 return send_status.status == protocol_module_sessionless::SEND_NG
224 || send_status.send_rest_size > 0 ;
228 class data_send_continue
231 inline bool operator () (const protocol_module_sessionless::send_status& send_status)
233 return send_status.status == protocol_module_sessionless::SEND_CONTINUE;
240 inline bool operator ()(const protocol_module_sessionless::send_status& send_status)
242 return send_status.status == protocol_module_sessionless::SEND_NG;
249 inline bool operator ()(const protocol_module_sessionless::send_status& send_status)
251 return send_status.status == protocol_module_sessionless::SEND_OK;
255 class data_send_repeated
258 inline bool operator ()(const protocol_module_sessionless::send_status& send_status_first,
259 const protocol_module_sessionless::send_status& send_status_second)
261 return send_status_first.status == protocol_module_sessionless::SEND_NG
262 || send_status_first.status == protocol_module_sessionless::SEND_CONTINUE;
266 class data_send_list_incorrect
269 inline bool operator ()(const protocol_module_sessionless::send_status& send_status_first,
270 const protocol_module_sessionless::send_status& send_status_second)
272 return (send_status_first.status == protocol_module_sessionless::SEND_OK
273 && send_status_first.send_rest_size > 0)
274 || (send_status_first.status == protocol_module_sessionless::SEND_CONTINUE)
275 || (send_status_first.status == protocol_module_sessionless::SEND_NG);
281 #endif //PROTOCOL_MODULE_SESSIONLESS_H