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 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
