1 #include "tests.h"
2 #include <asm/unistd.h>
3
4 #if defined __NR_sched_getscheduler && defined __NR_sched_setscheduler
5
6 # include <sched.h>
7 # include <stdio.h>
8 # include <unistd.h>
9
10 int
main(void)11 main(void)
12 {
13 TAIL_ALLOC_OBJECT_CONST_PTR(struct sched_param, param);
14 long rc = syscall(__NR_sched_getscheduler, 0);
15 const char *scheduler;
16 switch (rc) {
17 case SCHED_FIFO:
18 scheduler = "SCHED_FIFO";
19 break;
20 case SCHED_RR:
21 scheduler = "SCHED_RR";
22 break;
23 # ifdef SCHED_BATCH
24 case SCHED_BATCH:
25 scheduler = "SCHED_BATCH";
26 break;
27 # endif
28 # ifdef SCHED_IDLE
29 case SCHED_IDLE:
30 scheduler = "SCHED_IDLE";
31 break;
32 # endif
33 # ifdef SCHED_ISO
34 case SCHED_ISO:
35 scheduler = "SCHED_ISO";
36 break;
37 # endif
38 # ifdef SCHED_DEADLINE
39 case SCHED_DEADLINE:
40 scheduler = "SCHED_DEADLINE";
41 break;
42 # endif
43 default:
44 scheduler = "SCHED_OTHER";
45 }
46 printf("sched_getscheduler(0) = %ld (%s)\n",
47 rc, scheduler);
48
49 rc = syscall(__NR_sched_getscheduler, -1);
50 printf("sched_getscheduler(-1) = %s\n", sprintrc(rc));
51
52 param->sched_priority = -1;
53
54 rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, NULL);
55 printf("sched_setscheduler(0, SCHED_FIFO, NULL) = %s\n", sprintrc(rc));
56
57 rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, param + 1);
58 printf("sched_setscheduler(0, SCHED_FIFO, %p) = %s\n", param + 1,
59 sprintrc(rc));
60
61 rc = syscall(__NR_sched_setscheduler, 0, 0xfaceda7a, param);
62 printf("sched_setscheduler(0, %#x /* SCHED_??? */, [%d]) = %s\n",
63 0xfaceda7a, param->sched_priority, sprintrc(rc));
64
65 rc = syscall(__NR_sched_setscheduler, -1, SCHED_FIFO, param);
66 printf("sched_setscheduler(-1, SCHED_FIFO, [%d]) = %s\n",
67 param->sched_priority, sprintrc(rc));
68
69 rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, param);
70 printf("sched_setscheduler(0, SCHED_FIFO, [%d]) = %s\n",
71 param->sched_priority, sprintrc(rc));
72
73 puts("+++ exited with 0 +++");
74 return 0;
75 }
76
77 #else
78
79 SKIP_MAIN_UNDEFINED("__NR_sched_getscheduler && __NR_sched_setscheduler")
80
81 #endif
82