1 /* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * Created by: julie.n.fleischer REMOVE-THIS AT intel DOT com 4 * This file is licensed under the GPL license. For the full content 5 * of this license, see the COPYING file at the top level of this 6 * source tree. 7 8 * Test that timer_create() returns a unique timer ID for the current 9 * process. 10 * For this test, signal SIGALRM will be used, clock CLOCK_REALTIME 11 * will be used. 12 */ 13 14 #include <errno.h> 15 #include <time.h> 16 #include <signal.h> 17 #include <stdio.h> 18 #include <unistd.h> 19 #include <stdlib.h> 20 #include <search.h> 21 #include <limits.h> 22 #include "posixtest.h" 23 24 int compare(const void *key, const void *amemb) 25 { 26 if (*(timer_t *) key == *(timer_t *) amemb) { 27 return 0; 28 } else { 29 return 1; 30 } 31 } 32 33 int main(void) 34 { 35 struct sigevent ev; 36 timer_t tid; 37 timer_t *tids; 38 size_t i; 39 40 ev.sigev_notify = SIGEV_SIGNAL; 41 ev.sigev_signo = SIGALRM; 42 43 #if defined DEBUG && defined TIMER_MAX 44 printf("Max timers is %ld\n", (long)TIMER_MAX); 45 int max = TIMER_MAX; 46 #else 47 int max = 256; 48 #endif 49 tids = malloc(max * sizeof(timer_t)); 50 if (tids == NULL) { 51 perror("malloc failed\n"); 52 return PTS_UNRESOLVED; 53 } 54 55 for (i = 0; i < max; i++) { 56 if (timer_create(CLOCK_REALTIME, &ev, &tid) != 0) { 57 #ifndef TIMER_MAX 58 if (errno == EAGAIN) 59 break; 60 #endif 61 perror("timer_create() did not return success\n"); 62 return PTS_UNRESOLVED; 63 } 64 65 tids[i] = tid; 66 if (lfind(&tid, tids, &i, sizeof(timer_t), compare) != NULL) { 67 printf("Duplicate tid found %ld\n", (long)tid); 68 printf("Test FAILED\n"); 69 return PTS_FAIL; 70 } 71 } 72 73 printf("No duplicate tids found\n"); 74 printf("Test PASSED\n"); 75 return PTS_PASS; 76 } 77
