sysdeps/unix/sysv/linux/schedbits.h

   1 /* Definitions of constants and data structure for POSIX 1003.1b-1993
   2    scheduling interface.
   3 Copyright (C) 1996 Free Software Foundation, Inc.
   4 This file is part of the GNU C Library.
   5
   6 The GNU C Library is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU Library General Public License as
   8 published by the Free Software Foundation; either version 2 of the
   9 License, or (at your option) any later version.
  10
  11 The GNU C Library 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 GNU
  14 Library General Public License for more details.
  15
  16 You should have received a copy of the GNU Library General Public
  17 License along with the GNU C Library; see the file COPYING.LIB.  If
  18 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef _SCHEDBITS_H
  22 #define _SCHEDBITS_H    1
  23
  24 /* Scheduling algorithms.  */
  25 #define SCHED_OTHER     0
  26 #define SCHED_FIFO      1
  27 #define SCHED_RR        2
  28
  29 /* Data structure to describe a process' schedulability.  */
  30 struct sched_params
  31 {
  32   int sched_priority;
  33 };
  34
  35 /* Cloning flags.  */
  36 #define CSIGNAL       0x000000ff  /* Signal mask to be sent at exit.  */
  37 #define CLONE_VM      0x00000100  /* Set if VM shared between processes.  */
  38 #define CLONE_FS      0x00000200  /* Set if fs info shared between processes.*/
  39 #define CLONE_FILES   0x00000400  /* Set if open files shared between processes*/
  40 #define CLONE_SIGHAND 0x00000800  /* Set if signal handlers shared.  */
  41 #define CLONE_PID     0x00001000  /* Set if pid shared.  */
  42
  43
  44 /* Clone current process.  The parameter list of FN is not for true.  Only
  45    dots is not allowed by ISO C and without argument the compiler would
  46    complain about a missing parameter list.  */
  47 extern int clone __P ((int (*__fn) (void *, ...), void *__child_stack,
  48                        int __flags, int __nargs, ...));
  49
  50
  51 #endif /* schedbits.h */