OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [src/] [sched.c] - Blame information for rev 609

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 30 unneback 
/*
2 
 *  $Id: sched.c,v 1.2 2001-09-27 11:59:17 chris Exp $
3 
 */
4 
 
5 
#include <assert.h>
6 
#include <sched.h>
7 
#include <errno.h>
8 
 
9 
#include <rtems/system.h>
10 
#include <rtems/score/tod.h>
11 
#include <rtems/score/thread.h>
12 
#include <rtems/posix/seterr.h>
13 
#include <rtems/posix/priority.h>
14 
#include <rtems/posix/time.h>
15 
 
16 
/*PAGE
17 
 *
18 
 *  13.3.1 Set Scheduling Parameters, P1003.1b-1993, p. 252
19 
 *
20 
 */
21 
 
22 
int sched_setparam(
23 
  pid_t                     pid,
24 
  const struct sched_param *param
25 
)
26 
{
27 
  set_errno_and_return_minus_one( ENOSYS );
28 
}
29 
 
30 
/*PAGE
31 
 *
32 
 *  13.3.2 Set Scheduling Parameters, P1003.1b-1993, p. 253
33 
 */
34 
 
35 
int sched_getparam(
36 
  pid_t                     pid,
37 
  const struct sched_param *param
38 
)
39 
{
40 
  set_errno_and_return_minus_one( ENOSYS );
41 
}
42 
 
43 
/*PAGE
44 
 *
45 
 *  13.3.3 Set Scheduling Policy and Scheduling Parameters,
46 
 *         P1003.1b-1993, p. 254
47 
 */
48 
 
49 
int sched_setscheduler(
50 
  pid_t                     pid,
51 
  int                       policy,
52 
  const struct sched_param *param
53 
)
54 
{
55 
  set_errno_and_return_minus_one( ENOSYS );
56 
}
57 
 
58 
/*PAGE
59 
 *
60 
 *  13.3.4 Get Scheduling Policy, P1003.1b-1993, p. 256
61 
 */
62 
 
63 
int sched_getscheduler(
64 
  pid_t                     pid
65 
)
66 
{
67 
  set_errno_and_return_minus_one( ENOSYS );
68 
}
69 
 
70 
/*PAGE
71 
 *
72 
 *  13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258
73 
 */
74 
 
75 
int sched_get_priority_max(
76 
  int  policy
77 
)
78 
{
79 
  switch ( policy ) {
80 
    case SCHED_OTHER:
81 
    case SCHED_FIFO:
82 
    case SCHED_RR:
83 
    case SCHED_SPORADIC:
84 
      break;
85 
 
86 
    default:
87 
      set_errno_and_return_minus_one( EINVAL );
88 
  }
89 
 
90 
  return POSIX_SCHEDULER_MAXIMUM_PRIORITY;
91 
}
92 
 
93 
/*PAGE
94 
 *
95 
 *  13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258
96 
 */
97 
 
98 
int sched_get_priority_min(
99 
  int  policy
100 
)
101 
{
102 
  switch ( policy ) {
103 
    case SCHED_OTHER:
104 
    case SCHED_FIFO:
105 
    case SCHED_RR:
106 
    case SCHED_SPORADIC:
107 
      break;
108 
 
109 
    default:
110 
      set_errno_and_return_minus_one( EINVAL );
111 
  }
112 
 
113 
  return POSIX_SCHEDULER_MINIMUM_PRIORITY;
114 
}
115 
 
116 
/*PAGE
117 
 *
118 
 *  13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258
119 
 */
120 
 
121 
int sched_rr_get_interval(
122 
  pid_t             pid,
123 
  struct timespec  *interval
124 
)
125 
{
126 
  /* XXX do we need to support different time quantums per thread */
127 
 
128 
  /*
129 
   *  Only supported for the "calling process" (i.e. this node).
130 
   */
131 
 
132 
  if ( pid && pid != getpid() )
133 
    set_errno_and_return_minus_one( ESRCH );
134 
 
135 
  if ( !interval )
136 
    set_errno_and_return_minus_one( EINVAL );
137 
 
138 
  _POSIX_Interval_to_timespec( _Thread_Ticks_per_timeslice, interval );
139 
  return 0;
140 
}
141 
 
142 
/*PAGE
143 
 *
144 
 *  13.3.5 Yield Processor, P1003.1b-1993, p. 257
145 
 */
146 
 
147 
int sched_yield( void )
148 
{
149 
  _Thread_Disable_dispatch();
150 
    _Thread_Yield_processor();
151 
  _Thread_Enable_dispatch();
152 
  return 0;
153 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.