s2s.h

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/* $Header: /var/cvs/mbdyn/mbdyn/mbdyn-1.0/utils/s2s.h,v 1.24 2017/01/12 15:10:28 masarati Exp $ */
/* 
 * MBDyn (C) is a multibody analysis code. 
 * http://www.mbdyn.org
 *
 * Copyright (C) 1996-2017
 *
 * Pierangelo Masarati  <masarati@aero.polimi.it>
 * Paolo Mantegazza     <mantegazza@aero.polimi.it>
 *
 * Dipartimento di Ingegneria Aerospaziale - Politecnico di Milano
 * via La Masa, 34 - 20156 Milano, Italy
 * http://www.aero.polimi.it
 *
 * Changing this copyright notice is forbidden.
 *
 * This program 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 (version 2 of the License).
 * 
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef S2S_H
#define S2S_H

const int       S2S_BUFSIZE = 1024;

struct s2s_sockaddr_t {
        int     ms_type;
        int     ms_domain;
        union {
                struct sockaddr         ms_addr_generic;
                struct sockaddr_in      ms_addr_inet;
                struct sockaddr_un      ms_addr_local;
        }       ms_addr;
        socklen_t       ms_len;
};

enum {
        BLOCK_UNKNOWN = 0,
        BLOCK_NO,
        BLOCK_YES
};

struct s2s_t {
        // depend on configuration
        int     nChannels;
        const char      *path;
        // path and [host:][port] are mutually exclusive
        const char      *host;
        int     port;
        s2s_sockaddr_t  addr;
        int     create;
        int     block;

        // internal data
        int     sock;

        std::string buf;
        std::vector<double>     dbuf;
        bool    stream2socket;
        const char      *progname;

        s2s_t(void);
        ~s2s_t(void);

        void usage(int rc) const;
        void parse(int argc, char *argv[]);
        void prepare(void);
        void shutdown(void);

        bool is_blocking(void) const;

        ssize_t send(int flags) const;
        ssize_t recv(int flags);

        struct s2s_t    *next;
};

#endif /* S2S_H */