RetroShare/libretroshare/src/pqi/pqiperson.cc
csoler 7b0757c4bc Merged branch commits:
3068: added verification for file size computation (bug correction)

3069: set heartbeat values to intermediate values

3070: suppressed uninitialised memory read

3071: automatic removal of file lists from deleted peers, at restart (After
      double check that this does not alter exchange of file lists in any way)



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@3072 b45a01b8-16f6-495d-af2f-9b41ad6348cc
2010-06-05 19:16:39 +00:00

472 lines
12 KiB
C++

/*
* libretroshare/src/pqi pqiperson.cc
*
* 3P/PQI network interface for RetroShare.
*
* Copyright 2004-2006 by Robert Fernie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License Version 2 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
* Please report all bugs and problems to "retroshare@lunamutt.com".
*
*/
#include "pqi/pqi.h"
#include "pqi/pqiperson.h"
#include "pqi/pqipersongrp.h"
#include "services/p3disc.h"
const int pqipersonzone = 82371;
#include "util/rsdebug.h"
#include <sstream>
/****
* #define PERSON_DEBUG
****/
pqiperson::pqiperson(std::string id, pqipersongrp *pg)
:PQInterface(id), active(false), activepqi(NULL),
inConnectAttempt(false), waittimes(0),
pqipg(pg)
{
/* must check id! */
return;
}
pqiperson::~pqiperson()
{
// clean up the children.
std::map<uint32_t, pqiconnect *>::iterator it;
for(it = kids.begin(); it != kids.end(); it++)
{
pqiconnect *pc = (it->second);
delete pc;
}
kids.clear();
}
// The PQInterface interface.
int pqiperson::SendItem(RsItem *i)
{
std::ostringstream out;
out << "pqiperson::SendItem()";
if (active)
{
out << " Active: Sending On" << std::endl;
i->print(out, 5);
#ifdef PERSON_DEBUG
std::cerr << out.str() << std::endl;
#endif
return activepqi -> SendItem(i);
}
else
{
out << " Not Active: Used to put in ToGo Store";
out << std::endl;
out << " Now deleting...";
delete i;
}
pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
return 0; // queued.
}
RsItem *pqiperson::GetItem()
{
if (active)
return activepqi -> GetItem();
// else not possible.
return NULL;
}
int pqiperson::status()
{
if (active)
return activepqi -> status();
return -1;
}
int pqiperson::receiveHeartbeat()
{
pqioutput(PQL_DEBUG_ALERT, pqipersonzone, "pqiperson::receiveHeartbeat() from peer : " + PeerId());
lastHeartbeatReceived = time(NULL);
return true ;
}
// tick......
int pqiperson::tick()
{
//if lastHeartbeatReceived is 0, it might be not activated so don't do a net reset.
if (active &&
lastHeartbeatReceived != 0 &&
(time(NULL) - lastHeartbeatReceived) > HEARTBEAT_REPEAT_TIME * 5) {
pqioutput(PQL_WARNING, pqipersonzone, "pqiperson::tick() No heartbeat from the peer, assume connection is dead.");
this->reset();
}
int activeTick = 0;
{
std::ostringstream out;
out << "pqiperson::tick() Id: " << PeerId() << " ";
if (active)
out << "***Active***";
else
out << ">>InActive<<";
out << std::endl;
out << "Activepqi: " << activepqi << " inConnectAttempt: ";
if (inConnectAttempt)
out << "In Connection Attempt";
else
out << " Not Connecting ";
out << std::endl;
// tick the children.
std::map<uint32_t, pqiconnect *>::iterator it;
for(it = kids.begin(); it != kids.end(); it++)
{
if (0 < (it->second) -> tick())
{
activeTick = 1;
}
out << "\tTicking Child: " << (it->first) << std::endl;
}
pqioutput(PQL_DEBUG_ALL, pqipersonzone, out.str());
} // end of pqioutput.
return activeTick;
}
// callback function for the child - notify of a change.
// This is only used for out-of-band info....
// otherwise could get dangerous loops.
int pqiperson::notifyEvent(NetInterface *ni, int newState)
{
{
std::ostringstream out;
out << "pqiperson::notifyEvent() Id: " << PeerId();
out << std::endl;
out << "Message: " << newState << " from: " << ni << std::endl;
out << "Active pqi : " << activepqi;
pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
}
/* find the pqi, */
pqiconnect *pqi = NULL;
uint32_t type = 0;
std::map<uint32_t, pqiconnect *>::iterator it;
/* start again */
int i = 0;
for(it = kids.begin(); it != kids.end(); it++)
{
std::ostringstream out;
out << "pqiperson::connectattempt() Kid# ";
out << i << " of " << kids.size();
out << std::endl;
out << " type: " << (it->first);
out << " ni: " << (it->second)->ni;
out << " in_ni: " << ni;
pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
i++;
if ((it->second)->thisNetInterface(ni))
{
pqi = (it->second);
type = (it->first);
}
}
if (!pqi)
{
pqioutput(PQL_WARNING, pqipersonzone, "Unknown notfyEvent Source!");
return -1;
}
switch(newState)
{
case CONNECT_RECEIVED:
case CONNECT_SUCCESS:
/* notify */
if (pqipg) {
struct sockaddr_in remote_peer_address;
pqi->getConnectAddress(remote_peer_address);
pqipg->notifyConnect(PeerId(), type, true, remote_peer_address);
}
if ((active) && (activepqi != pqi)) // already connected - trouble
{
pqioutput(PQL_WARNING, pqipersonzone,
"CONNECT_SUCCESS+active-> activing new connection, shutting others");
// This is the RESET that's killing the connections.....
//activepqi -> reset();
// this causes a recursive call back into this fn.
// which cleans up state.
// we only do this if its not going to mess with new conn.
}
/* now install a new one. */
{
pqioutput(PQL_WARNING, pqipersonzone,
"CONNECT_SUCCESS->marking so! (resetting others)");
// mark as active.
active = true;
lastHeartbeatReceived = 0;
activepqi = pqi;
inConnectAttempt = false;
/* reset all other children? (clear up long UDP attempt) */
for(it = kids.begin(); it != kids.end(); it++)
{
if (!(it->second)->thisNetInterface(ni))
{
std::ostringstream out;
out << "Resetting pqi ref : " << &(it->second) << std::endl;
pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
it->second->reset();
} else {
//std::cerr << "Active pqi : not resetting." << std::endl;
}
}
return 1;
}
break;
case CONNECT_UNREACHABLE:
case CONNECT_FIREWALLED:
case CONNECT_FAILED:
if (active)
{
if (activepqi->thisNetInterface(ni))
{
pqioutput(PQL_WARNING, pqipersonzone,
"CONNECT_FAILED->marking so!");
active = false;
activepqi = NULL;
} else {
pqioutput(PQL_WARNING, pqipersonzone,
"CONNECT_FAILED-> from an unactive connection, don't flag the peer as not connected, just try next attempt !");
}
}
else
{
pqioutput(PQL_WARNING, pqipersonzone,
"CONNECT_FAILED+NOT active -> try connect again");
}
/* notify up (But not if we are actually active: rtn -1 case above) */
if (!active) {
if (pqipg)
pqipg->notifyConnect(PeerId(), type, false);
} else {
if (pqipg)
pqipg->notifyConnect(PeerId(), PQI_CONNECT_DO_NEXT_ATTEMPT, false);
return -1;
}
return 1;
break;
default:
break;
}
return -1;
}
/***************** Not PQInterface Fns ***********************/
int pqiperson::reset()
{
{
std::ostringstream out;
out << "pqiperson::reset() Id: " << PeerId();
out << std::endl;
pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
}
std::map<uint32_t, pqiconnect *>::iterator it;
for(it = kids.begin(); it != kids.end(); it++)
{
(it->second) -> reset();
}
activepqi = NULL;
active = false;
lastHeartbeatReceived = 0;
return 1;
}
int pqiperson::addChildInterface(uint32_t type, pqiconnect *pqi)
{
{
std::ostringstream out;
out << "pqiperson::addChildInterface() : Id " << PeerId() << " " << type;
out << std::endl;
pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
}
kids[type] = pqi;
return 1;
}
/***************** PRIVATE FUNCTIONS ***********************/
// functions to iterate over the connects and change state.
int pqiperson::listen()
{
{
std::ostringstream out;
out << "pqiperson::listen() Id: " << PeerId();
out << std::endl;
pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
}
if (!active)
{
std::map<uint32_t, pqiconnect *>::iterator it;
for(it = kids.begin(); it != kids.end(); it++)
{
// set them all listening.
(it->second) -> listen();
}
}
return 1;
}
int pqiperson::stoplistening()
{
{
std::ostringstream out;
out << "pqiperson::stoplistening() Id: " << PeerId();
out << std::endl;
pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
}
std::map<uint32_t, pqiconnect *>::iterator it;
for(it = kids.begin(); it != kids.end(); it++)
{
// set them all listening.
(it->second) -> stoplistening();
}
return 1;
}
int pqiperson::connect(uint32_t type, struct sockaddr_in raddr, uint32_t delay, uint32_t period, uint32_t timeout)
{
#ifdef PERSON_DEBUG
{
std::ostringstream out;
out << "pqiperson::connect() Id: " << PeerId();
out << " type: " << type;
out << " addr: " << inet_ntoa(raddr.sin_addr);
out << ":" << ntohs(raddr.sin_port);
out << " delay: " << delay;
out << " period: " << period;
out << " timeout: " << timeout;
out << std::endl;
std::cerr << out.str();
//pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
}
#endif
std::map<uint32_t, pqiconnect *>::iterator it;
it = kids.find(type);
if (it == kids.end())
{
#ifdef PERSON_DEBUG
std::ostringstream out;
out << "pqiperson::connect()";
out << " missing pqiconnect";
out << std::endl;
std::cerr << out.str();
//pqioutput(PQL_DEBUG_BASIC, pqipersonzone, out.str());
#endif
return 0;
}
/* set the parameters */
(it->second)->reset();
#ifdef PERSON_DEBUG
std::cerr << "pqiperson::connect() setting connect_parameters" << std::endl;
#endif
(it->second)->connect_parameter(NET_PARAM_CONNECT_DELAY, delay);
(it->second)->connect_parameter(NET_PARAM_CONNECT_PERIOD, period);
(it->second)->connect_parameter(NET_PARAM_CONNECT_TIMEOUT, timeout);
(it->second)->connect(raddr);
// flag if we started a new connectionAttempt.
inConnectAttempt = true;
return 1;
}
pqiconnect *pqiperson::getKid(uint32_t type)
{
std::map<uint32_t, pqiconnect *>::iterator it;
if (kids.empty()) {
return NULL;
}
it = kids.find(type);
if (it == kids.end())
{
return NULL;
} else {
return it->second;
}
}
float pqiperson::getRate(bool in)
{
// get the rate from the active one.
if ((!active) || (activepqi == NULL))
return 0;
return activepqi -> getRate(in);
}
void pqiperson::setMaxRate(bool in, float val)
{
// set to all of them. (and us)
PQInterface::setMaxRate(in, val);
// clean up the children.
std::map<uint32_t, pqiconnect *>::iterator it;
for(it = kids.begin(); it != kids.end(); it++)
{
(it->second) -> setMaxRate(in, val);
}
}