1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28#ifndef _SCHED_H_ 29#define _SCHED_H_ 30 31#include <sys/cdefs.h> 32#include <sys/time.h> 33 34__BEGIN_DECLS 35 36#define SCHED_NORMAL 0 37#define SCHED_OTHER 0 38#define SCHED_FIFO 1 39#define SCHED_RR 2 40 41struct sched_param { 42 int sched_priority; 43}; 44 45extern int sched_setscheduler(pid_t, int, const struct sched_param *); 46extern int sched_getscheduler(pid_t); 47extern int sched_yield(void); 48extern int sched_get_priority_max(int policy); 49extern int sched_get_priority_min(int policy); 50extern int sched_setparam(pid_t, const struct sched_param *); 51extern int sched_getparam(pid_t, struct sched_param *); 52extern int sched_rr_get_interval(pid_t pid, struct timespec *tp); 53 54__END_DECLS 55 56#endif /* _SCHED_H_ */ 57