| /* 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; |
| |
| |
| #ifdef __USE_GNU |
| /* 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; |
| #endif |
| |
| __END_DECLS |
| |
| #endif /* sched.h */ |
