fs/9p/transport.h

   1 /*
   2  * linux/fs/9p/transport.h
   3  *
   4  * Transport Definition
   5  *
   6  *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to:
  20  *  Free Software Foundation
  21  *  51 Franklin Street, Fifth Floor
  22  *  Boston, MA  02111-1301  USA
  23  *
  24  */
  25
  26 enum v9fs_transport_status {
  27         Connected,
  28         Disconnected,
  29         Hung,
  30 };
  31
  32 struct v9fs_transport {
  33         enum v9fs_transport_status status;
  34         struct semaphore writelock;
  35         struct semaphore readlock;
  36         void *priv;
  37
  38         int (*init) (struct v9fs_session_info *, const char *, char *);
  39         int (*write) (struct v9fs_transport *, void *, int);
  40         int (*read) (struct v9fs_transport *, void *, int);
  41         void (*close) (struct v9fs_transport *);
  42 };
  43
  44 extern struct v9fs_transport v9fs_trans_tcp;
  45 extern struct v9fs_transport v9fs_trans_unix;
  46 extern struct v9fs_transport v9fs_trans_fd;