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/*
* Copyright (c) 2016-2019 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#if defined __NR_sched_getscheduler && defined __NR_sched_setscheduler
# include <sched.h>
# include <stdio.h>
# include <unistd.h>
int
main(void)
{
TAIL_ALLOC_OBJECT_CONST_PTR(struct sched_param, param);
long rc = syscall(__NR_sched_getscheduler, 0);
const char *scheduler;
switch (rc) {
case SCHED_FIFO:
scheduler = "SCHED_FIFO";
break;
case SCHED_RR:
scheduler = "SCHED_RR";
break;
# ifdef SCHED_BATCH
case SCHED_BATCH:
scheduler = "SCHED_BATCH";
break;
# endif
# ifdef SCHED_IDLE
case SCHED_IDLE:
scheduler = "SCHED_IDLE";
break;
# endif
# ifdef SCHED_ISO
case SCHED_ISO:
scheduler = "SCHED_ISO";
break;
# endif
# ifdef SCHED_DEADLINE
case SCHED_DEADLINE:
scheduler = "SCHED_DEADLINE";
break;
# endif
default:
scheduler = "SCHED_OTHER";
}
printf("sched_getscheduler(0) = %ld (%s)\n",
rc, scheduler);
rc = syscall(__NR_sched_getscheduler, -1);
printf("sched_getscheduler(-1) = %s\n", sprintrc(rc));
param->sched_priority = -1;
rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, NULL);
printf("sched_setscheduler(0, SCHED_FIFO, NULL) = %s\n", sprintrc(rc));
rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, param + 1);
printf("sched_setscheduler(0, SCHED_FIFO, %p) = %s\n", param + 1,
sprintrc(rc));
rc = syscall(__NR_sched_setscheduler, 0, 0xfaceda7a, param);
printf("sched_setscheduler(0, %#x /* SCHED_??? */, [%d]) = %s\n",
0xfaceda7a, param->sched_priority, sprintrc(rc));
rc = syscall(__NR_sched_setscheduler, -1, SCHED_FIFO, param);
printf("sched_setscheduler(-1, SCHED_FIFO, [%d]) = %s\n",
param->sched_priority, sprintrc(rc));
rc = syscall(__NR_sched_setscheduler, 0, SCHED_FIFO, param);
printf("sched_setscheduler(0, SCHED_FIFO, [%d]) = %s\n",
param->sched_priority, sprintrc(rc));
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_sched_getscheduler && __NR_sched_setscheduler")
#endif
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