sched.h revision a27d2baa0c1a2ec70f47ea9199b1dd6762c8a349 
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#define CLONE_VM             0x00000100
55#define CLONE_FS             0x00000200
56#define CLONE_FILES          0x00000400
57#define CLONE_SIGHAND        0x00000800
58#define CLONE_PTRACE         0x00002000
59#define CLONE_VFORK          0x00004000
60#define CLONE_PARENT         0x00008000
61#define CLONE_THREAD         0x00010000
62#define CLONE_NEWNS          0x00020000
63#define CLONE_SYSVSEM        0x00040000
64#define CLONE_SETTLS         0x00080000
65#define CLONE_PARENT_SETTID  0x00100000
66#define CLONE_CHILD_CLEARTID 0x00200000
67#define CLONE_DETACHED       0x00400000
68#define CLONE_UNTRACED       0x00800000
69#define CLONE_CHILD_SETTID   0x01000000
70#define CLONE_STOPPED        0x02000000
71
72extern int    clone(int (*fn)(void*), void *child_stack, int flags, void *arg);
73extern pid_t  __clone(int, void *);
74
75__END_DECLS
76
77#endif /* _SCHED_H_ */
78