registermanager.cxx

SIP（Session Initiation Protocol）是由IETF定义

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
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 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact [e-mail].
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
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 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
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static const char* const RegisterManager_cxx_Version =
    "$Id: RegisterManager.cxx,v 1.14 2002/06/05 23:27:54 bko Exp $";

#include <iostream.h>
#include <stdio.h>
#include <algorithm>
// #include "LockGuard.hxx"
#include "cpLog.h"
#include "Sptr.hxx"
#include "NetworkAddress.h"
#include "Tcp_ClientSocket.hxx"
#include "Vpp_def.h"
#include "RegisterManager.hxx"


RegisterManager::RegisterManager()
{
}

void
RegisterManager::registerItemCat(const string &groupAndItem,
                                 const string &hostWithPort)
{

    //LockGuard guard(_lock);
    LockHelper lockAid( this->_aMutex );

    ClientHostList &hosts = _itemMap[groupAndItem];

    // find it. If not there, add it
    ClientHostList::iterator itr = find(hosts.begin(), hosts.end(),
                                        hostWithPort);
    if (itr == hosts.end())
    {
        hosts.push_back(hostWithPort);
    }

}


void
RegisterManager::registerItem(const string &group, const string &name,
                              const string &hostWithPort)
{

    LockHelper lockAid( this->_aMutex );

    string index = group + "|" + name;
    ClientHostList &hosts = _itemMap[index];

    // find it. If not there, add it
    ClientHostList::iterator itr = find(hosts.begin(), hosts.end(),
                                        hostWithPort);
    if (itr == hosts.end())
    {
        hosts.push_back(hostWithPort);
    }

}


void
RegisterManager::unregisterItem(const string &group, const string &name,
                                const string &hostWithPort)
{

    LockHelper lockAid( this->_aMutex );

    string index = group + "|" + name;
    ClientHostList &hosts = _itemMap[index];

    // find it. If there, delete it
    ClientHostList::iterator itr = find(hosts.begin(), hosts.end(),
                                        hostWithPort);
    if (itr != hosts.end())
    {
        hosts.erase(itr);
    }

}


void
RegisterManager::registerGroup(const string &group, const string &hostWithPort)
{

    LockHelper lockAid( this->_aMutex );

    ClientHostList &hosts = _groupMap[group];

    // find it. If not there, add it
    ClientHostList::iterator itr = find(hosts.begin(), hosts.end(),
                                        hostWithPort);
    if (itr == hosts.end())
    {
        hosts.push_back(hostWithPort);
    }

}


void
RegisterManager::unregisterGroup(const string &group,
                                 const string &hostWithPort)
{

    LockHelper lockAid( this->_aMutex );

    ClientHostList &hosts = _groupMap[group];

    // find it. If there, delete it
    ClientHostList::iterator itr = find(hosts.begin(), hosts.end(),
                                        hostWithPort);
    if (itr != hosts.end())
    {
        hosts.erase(itr);
    }

}


void
RegisterManager::modifyItem(const string &group, const string &name,
                            bool delFlag)
{

    LockHelper lockAid( this->_aMutex );

    string index = group + "|" + name;
    ClientHostList &hosts = _itemMap[index];

    ClientHostList sent;

    ClientHostList::iterator itr;

    // look for group+name matches
    for (itr = hosts.begin(); itr != hosts.end(); itr++)
    {
        sent.push_back(*itr);
        if (delFlag)
        {
            sendItemDelete(group, name, *itr);
        }
        else
        {
            sendItemModify(group, name, *itr);
        }
    }

    // now get the list of servers registered for the group. Make sure we
    // don't send twice.
    ClientHostList &hosts2 = _groupMap[group];

    // only send if we haven't already sent an update
    for (itr = hosts2.begin(); itr != hosts2.end(); itr++)
    {

        // look for it in the sent list. If not there, send
        ClientHostList::iterator finder = find(sent.begin(), sent.end(),
                                               *itr);
        if (finder == sent.end())
        {
            if (delFlag)
            {
                sendGroupDelete(group, name, *itr);
            }
            else
            {
                sendGroupModify(group, name, *itr);
            }
        }
    }

}


void RegisterManager::deleteItem(const string &group, const string &name)
{
    modifyItem(group, name, true);
}


void
RegisterManager::getList(string &list)
{

    // this is ugly and inneficent...
    list = "";
    list += "++ITEM++,";

    ClientHostMap::iterator itr;
    ClientHostList::iterator itr2;

    for (itr = _itemMap.begin(); itr != _itemMap.end(); itr++)
    {
        for (itr2 = ((*itr).second).begin(); itr2 != ((*itr).second).end();
                itr2++)
        {
            list += (*itr).first;
            list += ",";
            list += (*itr2);
            list += ",";
        }
    }

    list += "++GROUP++,";

    for (itr = _groupMap.begin(); itr != _groupMap.end(); itr++)
    {
        for (itr2 = ((*itr).second).begin(); itr2 != ((*itr).second).end();
                itr2++)
        {
            list += (*itr).first;
            list += ",";
            list += (*itr2);
            list += ",";
        }
    }

    cpLog(LOG_DEBUG, "List being sent is (%s)", list.c_str());

    return ;
}


// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// THESE SHOULD ALL BE CALLED FROM INSIDE A LOCKED FUNCTION!
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
void
RegisterManager::sendItemModify(const string &group, const string &name,
                                const string &host)
{
    try
    {
        NetworkAddress na(host);
        // if no port was specified (which should be trapped), return
        if (na.getPort() == -1)
        {
            return ;
        }

        Sptr < TcpClientSocket > clientSocket = 0;
        clientSocket = new TcpClientSocket(na);
        clientSocket->connect();

        char buf[MAXLINE];
        sprintf(buf, "%s %s %s\n\n", UPDATEITEM_REQ, group.c_str(),
                name.c_str());
        string wData(buf);

        clientSocket->getConn().writeData(wData);

    }
    catch (VException &e)
    {
        cpLog(LOG_ALERT, "Failed to send update to %s for item (%s,%s)",
              host.c_str(), group.c_str(), name.c_str());
        return ;
    }

    cpLog(LOG_DEBUG, "Sent item modify update for (%s,%s) to (%s)",
          group.c_str(), name.c_str(), host.c_str());

    return ;
}


void
RegisterManager::sendItemDelete(const string &group, const string &name,
                                const string &host)
{
    try
    {
        NetworkAddress na(host);
        // if no port was specified (which should be trapped), return
        if (na.getPort() == -1)
        {
            return ;
        }

        Sptr < TcpClientSocket > clientSocket = 0;
        clientSocket = new TcpClientSocket(na);
        clientSocket->connect();

        char buf[MAXLINE];
        sprintf(buf, "%s %s %s\n\n", DELITEM_REQ, group.c_str(), name.c_str());
        string wData(buf);

        clientSocket->getConn().writeData(wData);

    }
    catch (VException &e)
    {
        cpLog(LOG_ALERT, "Failed to send update to %s for item (%s,%s)",
              host.c_str(), group.c_str(), name.c_str());
        return ;
    }

    cpLog(LOG_DEBUG, "Sent item delete update for (%s,%s) to (%s)",
          group.c_str(), name.c_str(), host.c_str());

    return ;
}


void
RegisterManager::sendGroupModify(const string &group, const string &name,
                                 const string &host)
{

    try
    {
        NetworkAddress na(host);
        // if no port was specified (which should be trapped), return
        if (na.getPort() == -1)
        {
            return ;
        }

        Sptr < TcpClientSocket > clientSocket = 0;
        clientSocket = new TcpClientSocket(na);
        clientSocket->connect();

        char buf[MAXLINE];
        sprintf(buf, "%s %s %s\n\n", UPDATEGROUP_REQ, group.c_str(),
                name.c_str());
        string wData(buf);

        clientSocket->getConn().writeData(wData);

    }
    catch (VException &e)
    {
        cpLog(LOG_ALERT, "Failed to send update to %s for item (%s,%s)",
              host.c_str(), group.c_str(), name.c_str());
        return ;
    }

    cpLog(LOG_DEBUG, "Sent group modify update for (%s,%s) to (%s)",
          group.c_str(), name.c_str(), host.c_str());

    return ;

}


void
RegisterManager::sendGroupDelete(const string &group, const string &name,
                                 const string &host)
{

    try
    {
        NetworkAddress na(host);
        // if no port was specified (which should be trapped), return
        if (na.getPort() == -1)
        {
            return ;
        }

        Sptr < TcpClientSocket > clientSocket = 0;
        clientSocket = new TcpClientSocket(na);
        clientSocket->connect();

        char buf[MAXLINE];
        sprintf(buf, "%s %s %s\n\n", DELGROUP_REQ, group.c_str(),
                name.c_str());
        string wData(buf);

        clientSocket->getConn().writeData(wData);

    }
    catch (VException &e)
    {
        cpLog(LOG_ALERT, "Failed to send update to %s for item (%s,%s)",
              host.c_str(), group.c_str(), name.c_str());
        return ;
    }

    cpLog(LOG_DEBUG, "Sent group delete update for (%s,%s) to (%s)",
          group.c_str(), name.c_str(), host.c_str());

    return ;

}


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