RetroShare/libretroshare/src/grouter/grouterclientservice.h
2018-11-11 14:24:47 +01:00

80 lines
4.5 KiB
C++

/*******************************************************************************
* libretroshare/src/grouter: grouterclientservice.h *
* *
* libretroshare: retroshare core library *
* *
* Copyright 2013 by Cyril Soler <csoler@users.sourceforge.net> *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* This program 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 Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
// This class is the parent class for any service that will use the global router to distribute its packets.
// Typical representative clients include:
//
// p3msgservice: sends distant messages and advertise messaging keys
//
#pragma once
#include <string>
#include <stdlib.h>
#include <grouter/grouteritems.h>
struct RsItem;
static const uint32_t GROUTER_CLIENT_SERVICE_DATA_STATUS_UNKNOWN = 0x0000 ; // unused.
static const uint32_t GROUTER_CLIENT_SERVICE_DATA_STATUS_RECEIVED = 0x0001 ; // sent when data has been received and a receipt is available.
static const uint32_t GROUTER_CLIENT_SERVICE_DATA_STATUS_FAILED = 0x0002 ; // sent if the global router cannot send after a while
class GRouterClientService
{
public:
// This method is called by the turtle router to send data that comes out of a turtle tunnel.
// The turtle router stays responsible for the memory management of data. Most of the time the
// data chunk is a serialized item to be de-serialized by the client service.
//
// Parameters:
// item : global router item. Handled by the client service.
// destination_key : key that is associated with this item. Can be useful for the client.
//
// GRouter stays owner of the item, so the client should not delete it!
//
virtual void receiveGRouterData(const RsGxsId& destination_key,const RsGxsId& /*signing_key*/, GRouterServiceId &/*client_id*/, uint8_t */*data*/, uint32_t /*data_size*/)
{
std::cerr << "!!!!!! Received Data from global router, but the client service is not handling it !!!!!!!!!!" << std::endl ;
std::cerr << " destination key_id = " << destination_key.toStdString() << std::endl;
}
// This method is called by the global router when a message has been received, or cannot be sent, etc.
//
virtual void notifyDataStatus(const GRouterMsgPropagationId& received_id,const RsGxsId& signer_id,uint32_t data_status)
{
std::cerr << "!!!!!! Received Data status from global router, but the client service is not handling it !!!!!!!!!!" << std::endl ;
std::cerr << " message ID = " << received_id << std::endl;
std::cerr << " data status = " << data_status << std::endl;
std::cerr << " signer ID = " << signer_id << std::endl;
}
// This function is mandatory. It should do two things:
// 1 - keep a pointer to the global router, so as to be able to send data (e.g. copy pt into a local variable)
// 2 - call pt->registerTunnelService(this), so that the TR knows that service and can send back information to it.
//
virtual void connectToGlobalRouter(p3GRouter *pt) = 0 ;
// should be derived to determine wether the client accepts data from this peer or not. If not, the data is dropped.
virtual bool acceptDataFromPeer(const RsGxsId& gxs_id) =0;
};