mwlowlev.h

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// Copyright (C) 1997-2010 by Pawel Pilarczyk.
//
// This file is part of the Homology Library.  This library 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 2 of the License, or (at your option) any later version.
//
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this software; see the file "license.txt".  If not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
// MA 02111-1307, USA.

// Started on August 11, 2004. Last revision: November 29, 2007.


#ifndef _CHOMP_MULTIWORK_MWLOWLEV_H_
#define _CHOMP_MULTIWORK_MWLOWLEV_H_

#include <string>

namespace chomp {
namespace multiwork {

// --------------------------------------------------
// ---------- network communication flags -----------
// --------------------------------------------------

enum mwIOconstants
{
        mwNone = 0,

        mwCanRead = 0x01,

        mwCanWrite = 0x02,

        mwTimeOut = -4,

        mwLost = -5

}; /* enum mwIOconstants */


// --------------------------------------------------
// ------------- network communication --------------
// --------------------------------------------------
// The following functions are implemented
// in a system-dependent way in the "mw_*.cpp" files
// one of which (or all) must be linked with the program.

int mwSendBytes (int fd, const char *buf, int len);

int mwRecvBytes (int fd, char *buf, int len);

int mwConnect (const char *name, int port);

int mwListen (int port, int queuesize);

int mwAccept (int fd, std::string &computer, int timeout = -1);

int mwSelect (const int *workers, int nworkers, int listensocket,
        int *ioflags, int timeout);

void mwDisconnect (int fd);


} // namespace multiwork
} // namespace chomp

#endif // _CHOMP_MULTIWORK_MWLOWLEV_H_