kernel/include/fd.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #ifndef _FD_H
  22 #define _FD_H
  23
  24 #include <proc.h>
  25 #include <dev.h>
  26 #include <vfs.h>
  27
  28 /* File descriptor structure */
  29 typedef struct fd_context {
  30         struct fd_context *next, *prev;
  31
  32         char *s;
  33         unsigned long e;
  34         unsigned flags;
  35         unsigned id;
  36         unsigned p;
  37         char *path;
  38         dev_t *dev;
  39         proc_t *proc;
  40 } fd_t;
  41
  42 /* input/output posix file descriptors */
  43 fd_t *stdout;
  44 fd_t *stdin;
  45
  46 /* externs */
  47 extern fd_t fd_list;
  48
  49 extern fd_t *fd_get (int id);
  50 extern fd_t *fd_create (int flags);
  51 extern int fd_delete (fd_t *fd);
  52 extern unsigned int init_fd ();
  53
  54 #endif