82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
#include "tests.h"
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#include <asm/unistd.h>
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#if defined __NR_sched_getscheduler && defined __NR_sched_setscheduler
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# include <sched.h>
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# include <stdio.h>
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# include <unistd.h>
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int
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main(void)
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{
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TAIL_ALLOC_OBJECT_CONST_PTR(struct sched_param, param);
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long rc = syscall(__NR_sched_getscheduler, 0);
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const char *scheduler;
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switch (rc) {
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case SCHED_FIFO:
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scheduler = "SCHED_FIFO";
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break;
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case SCHED_RR:
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scheduler = "SCHED_RR";
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break;
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# ifdef SCHED_BATCH
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case SCHED_BATCH:
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scheduler = "SCHED_BATCH";
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break;
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# endif
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# ifdef SCHED_IDLE
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case SCHED_IDLE:
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scheduler = "SCHED_IDLE";
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break;
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# endif
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# ifdef SCHED_ISO
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case SCHED_ISO:
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scheduler = "SCHED_ISO";
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break;
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# endif
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# ifdef SCHED_DEADLINE
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case SCHED_DEADLINE:
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scheduler = "SCHED_DEADLINE";
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break;
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# endif
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default:
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scheduler = "SCHED_OTHER";
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}
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printf("sched_getscheduler(0) = %ld (%s)\n",
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rc, scheduler);
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rc = syscall(__NR_sched_getscheduler, -1);
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printf("sched_getscheduler(-1) = %s\n", sprintrc(rc));
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param->sched_priority = -1;
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rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, NULL);
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printf("sched_setscheduler(0, SCHED_FIFO, NULL) = %s\n", sprintrc(rc));
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rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, param + 1);
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printf("sched_setscheduler(0, SCHED_FIFO, %p) = %s\n", param + 1,
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sprintrc(rc));
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rc = syscall(__NR_sched_setscheduler, 0, 0xfaceda7a, param);
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printf("sched_setscheduler(0, %#x /* SCHED_??? */, [%d]) = %s\n",
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0xfaceda7a, param->sched_priority, sprintrc(rc));
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rc = syscall(__NR_sched_setscheduler, -1, SCHED_FIFO, param);
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printf("sched_setscheduler(-1, SCHED_FIFO, [%d]) = %s\n",
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param->sched_priority, sprintrc(rc));
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rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, param);
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printf("sched_setscheduler(0, SCHED_FIFO, [%d]) = %s\n",
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param->sched_priority, sprintrc(rc));
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_sched_getscheduler && __NR_sched_setscheduler")
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#endif
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