libc/include/sched.h

/*
 * Copyright (C) 2008 The Android Open Source Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#ifndef _SCHED_H_
#define _SCHED_H_

#include <sys/cdefs.h>
#include <sys/time.h>

__BEGIN_DECLS

#define SCHED_NORMAL            0
#define SCHED_OTHER             0
#define SCHED_FIFO              1
#define SCHED_RR                2

struct sched_param {
    int sched_priority;
};

extern int sched_setscheduler(pid_t, int, const struct sched_param *);
extern int sched_getscheduler(pid_t);
extern int sched_yield(void);
extern int sched_get_priority_max(int policy);
extern int sched_get_priority_min(int policy);
extern int sched_setparam(pid_t, const struct sched_param *);
extern int sched_getparam(pid_t, struct sched_param *);
extern int sched_rr_get_interval(pid_t pid, struct timespec *tp);

#define CLONE_VM             0x00000100
#define CLONE_FS             0x00000200
#define CLONE_FILES          0x00000400
#define CLONE_SIGHAND        0x00000800
#define CLONE_PTRACE         0x00002000
#define CLONE_VFORK          0x00004000
#define CLONE_PARENT         0x00008000
#define CLONE_THREAD         0x00010000
#define CLONE_NEWNS          0x00020000
#define CLONE_SYSVSEM        0x00040000
#define CLONE_SETTLS         0x00080000
#define CLONE_PARENT_SETTID  0x00100000
#define CLONE_CHILD_CLEARTID 0x00200000
#define CLONE_DETACHED       0x00400000
#define CLONE_UNTRACED       0x00800000
#define CLONE_CHILD_SETTID   0x01000000
#define CLONE_STOPPED        0x02000000

extern int    clone(int (*fn)(void*), void *child_stack, int flags, void *arg);
extern pid_t  __clone(int, void *);

__END_DECLS

#endif /* _SCHED_H_ */