/*

  Copyright 2008 Nathan Phillip Brink, Ethan Zonca

  This file is a part of DistRen.

  DistRen is free software: you can redistribute it and/or modify

  it under the terms of the GNU Affero General Public License as published by

  the Free Software Foundation, either version 3 of the License, or

  (at your option) any later version.

  DistRen 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 Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License

  along with DistRen.  If not, see <http://www.gnu.org/licenses/>.

*/

#ifndef _DISTREN_EXECIO_H

#define _DISTREN_EXECIO_H

/*

  This file tries to abstract away getting a socket/fd that talks to a spawned program

 */

#include <unistd.h>

enum execio_state

  {

    EXECIO_STATE_ERROR,

    EXECIO_STATE_EOF

  };

struct execio

{

  int pipe_write;

  int pipe_read;

  enum execio_state state;

  pid_t child;

};

  runs progname with the arguments in argv. argv must be null terminated!!!!!!!!!

  returns nonzero return on error

*/

   doesn't block,

   returns 0 on success, 1 on failure

*/

int execio_read(struct execio *eio, void *buf, size_t len, size_t *bytesread);

  use this function to determine if the using program should keep trying to read/write

 */

enum execio_state execio_state(struct execio *eio);

*/

int execio_close(struct execio *eio);

#endif