summaryrefslogtreecommitdiffstats
path: root/cpukit/posix/include/sched.h
blob: 964430b792116b751153ceaf354ec3e3e5258dc5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
/*  sched.h
 *
 *  $Id$
 */


#ifndef __POSIX_SCHEDULING_h
#define __POSIX_SCHEDULING_h

#ifdef __cplusplus
extern "C" {
#endif

#include <sys/features.h>

#if defined(_POSIX_PRIORITY_SCHEDULING)

#include <sys/types.h>
#include <time.h>
#include <sys/sched.h>
#include <pthread.h>

/*
 *  13.3.1 Set Scheduling Parameters, P1003.1b-1993, p. 252
 *
 */

int sched_setparam(
  pid_t                     pid,
  const struct sched_param *param
);

/*
 *  13.3.2 Set Scheduling Parameters, P1003.1b-1993, p. 253
 */

int sched_getparam(
  pid_t                     pid,
  const struct sched_param *param
);

/*
 *  13.3.3 Set Scheduling Policy and Scheduling Parameters,
 *         P1003.1b-1993, p. 254
 */

int sched_setscheduler(
  pid_t                     pid,
  int                       policy,
  const struct sched_param *param
);

/*
 *  13.3.4 Get Scheduling Policy, P1003.1b-1993, p. 256
 */

int sched_getscheduler(
  pid_t                     pid
);

/*
 *  13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258
 */

int sched_get_priority_max(
  int  policy
);

int sched_get_priority_min(
  int  policy
);

int sched_rr_get_interval(
  pid_t             pid,
  struct timespec  *interval
);

#endif /* _POSIX_PRIORITY_SCHEDULING */

#if defined(_POSIX_THREADS) || defined(_POSIX_PRIORITY_SCHEDULING)

/*
 *  13.3.5 Yield Processor, P1003.1b-1993, p. 257
 */

int sched_yield( void );

#endif /* _POSIX_THREADS or _POSIX_PRIORITY_SCHEDULING */

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */