/* Definitions for POSIX 1003.1b-1993 (aka POSIX.4) scheduling interface. Copyright (C) 1996,1997,1999,2001-2003,2004 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 _SCHED_H #define _SCHED_H 1 #include <features.h> /* Get type definitions. */ #include <bits/types.h> #define __need_timespec #include <time.h> /* Get system specific constant and data structure definitions. */ #include <bits/sched.h> /* Define the real names for the elements of `struct sched_param'. */ #define sched_priority __sched_priority __BEGIN_DECLS /* Set scheduling parameters for a process. */ extern int sched_setparam (__pid_t __pid, __const struct sched_param *__param) __THROW; /* Retrieve scheduling parameters for a particular process. */ extern int sched_getparam (__pid_t __pid, struct sched_param *__param) __THROW; /* Set scheduling algorithm and/or parameters for a process. */ extern int sched_setscheduler (__pid_t __pid, int __policy, __const struct sched_param *__param) __THROW; /* Retrieve scheduling algorithm for a particular purpose. */ extern int sched_getscheduler (__pid_t __pid) __THROW; /* Yield the processor. */ extern int sched_yield (void) __THROW; /* Get maximum priority value for a scheduler. */ extern int sched_get_priority_max (int __algorithm) __THROW; /* Get minimum priority value for a scheduler. */ extern int sched_get_priority_min (int __algorithm) __THROW; /* Get the SCHED_RR interval for the named process. */ extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW; #if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__ /* Access macros for `cpu_set'. */ #define CPU_SETSIZE __CPU_SETSIZE #define CPU_SET(cpu, cpusetp) __CPU_SET (cpu, cpusetp) #define CPU_CLR(cpu, cpusetp) __CPU_CLR (cpu, cpusetp) #define CPU_ISSET(cpu, cpusetp) __CPU_ISSET (cpu, cpusetp) #define CPU_ZERO(cpusetp) __CPU_ZERO (cpusetp) /* Set the CPU affinity for a task */ extern int sched_setaffinity (__pid_t __pid, size_t __cpusetsize, __const cpu_set_t *__cpuset) __THROW; /* Get the CPU affinity for a task */ extern int sched_getaffinity (__pid_t __pid, size_t __cpusetsize, cpu_set_t *__cpuset) __THROW; extern int __clone (int (*__fn) (void *__arg), void *__child_stack, int __flags, void *__arg, ...); extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base, size_t __child_stack_size, int __flags, void *__arg, ...); #endif __END_DECLS #endif /* sched.h */