kernel/include/proc.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #ifndef _PROC_H
  21 #define _PROC_H
  22
  23 #include <tty.h>
  24
  25 #define PROC_USER_PRIORITY      128
  26
  27 #define PROC_FLAG_DAEMON        0x1
  28
  29 /* Process id */
  30 typedef unsigned pid_t;
  31
  32 /* Process structure */
  33 typedef struct proc_context {
  34         struct proc_context *next, *prev;
  35
  36         task_t *task;
  37         pid_t pid;
  38         tty_t *tty;
  39         char name[12];
  40
  41         unsigned argc;
  42         char **argv;
  43
  44         unsigned short flags;
  45
  46         unsigned start;
  47         unsigned code;
  48         unsigned data;
  49         unsigned data_off;
  50         unsigned bss;
  51         unsigned end;
  52 } proc_t;
  53
  54 /* externs */
  55 extern void proc_display ();
  56 extern proc_t *proc_find (task_t *task);
  57 extern proc_t *proc_findbypid (pid_t pid);
  58 extern proc_t *proc_create (tty_t *tty, char *name, unsigned entry);
  59 extern bool proc_done (proc_t *proc);
  60 extern bool proc_signal (proc_t *proc, unsigned signal);
  61 extern bool proc_arg_set (proc_t *proc, char *arg, unsigned argl);
  62 extern bool proc_arg_free (proc_t *proc);
  63 extern bool proc_arg_get (proc_t *proc, unsigned *argc, char **argv);
  64 extern unsigned proc_page_fault ();
  65 extern unsigned int init_proc (void);
  66
  67 #endif