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/*
* This file is part of rasdaman community.
*
* Rasdaman community is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
/
/**
* SOURCE: rasmgr_comm.hh
*
* MODULE: rasmgr
* CLASS: HTTPComm
*
* PURPOSE:
* Performs reliable, but blocking HTTP communication. used by the slave rasmgr
*
* COMMENTS:
* Will be removed, the plan is to have only non-blocking communication
*
*/
#ifndef RASMGR_COMM_HH
#define RASMGR_COMM_HH
#include "rasmgr.hh"
#define MAXMSG 1024
#define MAXMSGOUTBUFF 20000
/**
* \defgroup Rasmgrs Rasmgr Classes
*/
/**
* \ingroup Rasmgrs
*/
class HTTPComm
{
public:
HTTPComm();
~HTTPComm();
void closeListenSocket();
void shouldExit();
char *decodeFlag(int statusFlag);
protected:
int initListenSocket(int port);
int makeSocket(int port);
int sendAnswer(int socket,int len);
int getMessage();
protected:
bool isMessage(const char *messageStart);
// pid_t parentPID;
int listen_socket;
fd_set active_fd_set,read_fd_set;
struct timeval tv;
timeval *tvptr;
char *header;
char *body;
char inBuffer[MAXMSG];
char outBuffer[MAXMSGOUTBUFF];
bool exitRequest;
private:
int realGetMessage();
};
// status flags that rasmgr understands
// - these come from rasserver
#define SERVER_DOWN 0
#define SERVER_AVAILABLE 1
#define SERVER_REGULARSIG 3
// - this comes from slave rasmgr and LSM
#define SERVER_CRASHED 2
// textual representation of the above status flags -- PB 2004-jul-16
#define SERVER_DOWN_TXT "server down"
#define SERVER_AVAILABLE_TXT "server available"
#define SERVER_REGULARSIG_TXT "server alive"
#define SERVER_CRASHED_TXT "server aborted"
/* This two functions where written late in the night, when we came back from BLVA
(Bayerisches Landesvermessungsamt), where we had problems on DEC+CompaqTrue64
this &@$! operating system wasn't able to send a message in one piece which was written in one piece
*/
int readWholeMessage(int socket,char *destBuffer,int buffSize);
int writeWholeMessage(int socket,char *destBuffer,int buffSize);
#endif
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