/* Definitions of constants and data structure for POSIX 1003.1b-1993 scheduling interface. Copyright (C) 1996-1999,2001-2003,2005,2006 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #ifndef __need_schedparam #ifndef _SCHED_H # error "Never include <bits/sched.h> directly; use <sched.h> instead." #endif /* Scheduling algorithms. */ #define SCHED_OTHER 0 #define SCHED_FIFO 1 #define SCHED_RR 2 #ifdef __USE_GNU # define SCHED_BATCH 3 #endif #ifdef __USE_MISC /* Cloning flags. */ # define CSIGNAL 0x000000ff /* Signal mask to be sent at exit. */ # define CLONE_VM 0x00000100 /* Set if VM shared between processes. */ # define CLONE_FS 0x00000200 /* Set if fs info shared between processes. */ # define CLONE_FILES 0x00000400 /* Set if open files shared between processes. */ # define CLONE_SIGHAND 0x00000800 /* Set if signal handlers shared. */ # define CLONE_PTRACE 0x00002000 /* Set if tracing continues on the child. */ # define CLONE_VFORK 0x00004000 /* Set if the parent wants the child to wake it up on mm_release. */ # define CLONE_PARENT 0x00008000 /* Set if we want to have the same parent as the cloner. */ # define CLONE_THREAD 0x00010000 /* Set to add to same thread group. */ # define CLONE_NEWNS 0x00020000 /* Set to create new namespace. */ # define CLONE_SYSVSEM 0x00040000 /* Set to shared SVID SEM_UNDO semantics. */ # define CLONE_SETTLS 0x00080000 /* Set TLS info. */ # define CLONE_PARENT_SETTID 0x00100000 /* Store TID in userlevel buffer before MM copy. */ # define CLONE_CHILD_CLEARTID 0x00200000 /* Register exit futex and memory location to clear. */ # define CLONE_DETACHED 0x00400000 /* Create clone detached. */ # define CLONE_UNTRACED 0x00800000 /* Set if the tracing process can't force CLONE_PTRACE on this clone. */ # define CLONE_CHILD_SETTID 0x01000000 /* Store TID in userlevel buffer in the child. */ # define CLONE_STOPPED 0x02000000 /* Start in stopped state. */ #endif /* The official definition. */ struct sched_param { int __sched_priority; }; __BEGIN_DECLS #ifdef __USE_MISC /* Clone current process. */ extern int clone (int (*__fn) (void *__arg), void *__child_stack, int __flags, void *__arg, ...) __THROW; #if 0 /* Unshare the specified resources. */ extern int unshare (int __flags) __THROW; #endif #endif __END_DECLS #endif /* need schedparam */ #if !defined __defined_schedparam \ && (defined __need_schedparam || defined _SCHED_H) # define __defined_schedparam 1 /* Data structure to describe a process' schedulability. */ struct __sched_param { int __sched_priority; }; # undef __need_schedparam #endif #if defined _SCHED_H && !defined __cpu_set_t_defined # define __cpu_set_t_defined /* Size definition for CPU sets. */ # define __CPU_SETSIZE 1024 # define __NCPUBITS (8 * sizeof (__cpu_mask)) /* Type for array elements in 'cpu_set'. */ typedef unsigned long int __cpu_mask; /* Basic access functions. */ # define __CPUELT(cpu) ((cpu) / __NCPUBITS) # define __CPUMASK(cpu) ((__cpu_mask) 1 << ((cpu) % __NCPUBITS)) /* Data structure to describe CPU mask. */ typedef struct { __cpu_mask __bits[__CPU_SETSIZE / __NCPUBITS]; } cpu_set_t; /* Access functions for CPU masks. */ # define __CPU_ZERO(cpusetp) \ do { \ unsigned int __i; \ cpu_set_t *__arr = (cpusetp); \ for (__i = 0; __i < sizeof (cpu_set_t) / sizeof (__cpu_mask); ++__i) \ __arr->__bits[__i] = 0; \ } while (0) # define __CPU_SET(cpu, cpusetp) \ ((cpusetp)->__bits[__CPUELT (cpu)] |= __CPUMASK (cpu)) # define __CPU_CLR(cpu, cpusetp) \ ((cpusetp)->__bits[__CPUELT (cpu)] &= ~__CPUMASK (cpu)) # define __CPU_ISSET(cpu, cpusetp) \ (((cpusetp)->__bits[__CPUELT (cpu)] & __CPUMASK (cpu)) != 0) #endif