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132 lines
3.5 KiB
132 lines
3.5 KiB
/*
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* $Id: ModMysql.cpp 1764 2010-04-01 14:33:30Z peter_lemenkov $
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*
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* Copyright (C) 2010 TelTech Systems Inc.
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*
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* This file is part of SEMS, a free SIP media server.
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*
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* SEMS is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version. This program is released under
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* the GPL with the additional exemption that compiling, linking,
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* and/or using OpenSSL is allowed.
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*
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* For a license to use the SEMS software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* SEMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _RpcPeer_h_
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#define _RpcPeer_h_
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#include <ev.h>
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#include <stdlib.h>
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#include "log.h"
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#include "AmArg.h"
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#define MAX_RPC_MSG_SIZE 20*1024*1024 // 20k
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#define MAX_NS_LEN_SIZE 10
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#define SEND_SLEEP 10000 // 10 ms send retry
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#include <map>
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#include <string>
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struct JsonrpcPeerConnection {
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std::string id;
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// event queue keys that should receive the reply
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// to requests sent on that connection
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// req_id queue udata
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std::map<std::string, std::pair<std::string, AmArg > > replyReceivers;
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// if present, notifications will be sent
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// to that event queue directly
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std::string notificationReceiver;
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// if present, requests will be sent
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// to that event queue directly
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std::string requestReceiver;
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int flags;
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enum {
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FL_CLOSE_ALWAYS = 1, // always close connection after request processed
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FL_CLOSE_WRONG_REPLY = 2, // close connection if reply with unknown ID received
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FL_CLOSE_NO_REPLYLINK = 4, // close connection if reply queue for a request missing
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FL_CLOSE_NO_REQUEST_RECV = 8, // close connection if reques queue missing
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FL_CLOSE_NO_NOTIF_RECV = 16 // close connection if notification queue missing
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};
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JsonrpcPeerConnection() {
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req_id = rand()%1024;
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}
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int req_id;
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JsonrpcPeerConnection(const std::string& id)
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: id(id) {
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DBG("created connection '%s'\n", id.c_str());
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}
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virtual ~JsonrpcPeerConnection() {
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DBG("destroying connection '%s'\n", id.c_str());
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}
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void notifyDisconnect();
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};
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struct JsonrpcNetstringsConnection
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: public JsonrpcPeerConnection
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{
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int fd;
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ev_io ev_write;
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ev_io ev_read;
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char snd_size[MAX_NS_LEN_SIZE+1];
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char msgbuf[MAX_RPC_MSG_SIZE];
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unsigned int msg_size;
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unsigned int rcvd_size;
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bool in_msg;
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bool msg_recv;
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JsonrpcNetstringsConnection(const std::string& id);
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~JsonrpcNetstringsConnection();
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int connect(const std::string& host, int port, std::string& res_str);
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void close();
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enum {
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CONTINUE = 0,
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REMOVE,
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DISPATCH
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} ReadResult;
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/** @returns ReadResult */
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int netstringsRead();
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/**
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blocking write: blocks until message in msgbuf
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with size msg_size is written
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*/
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int netstringsBlockingWrite();
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void resetRead();
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bool messagePending();
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bool messageIsRecv();
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};
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#endif
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