1 /* $OpenBSD: fopen_test.c,v 1.2 2015/01/20 04:41:01 krw Exp $ */ 2 /* 3 * Copyright (c) 2008 Bret S. Lambert <blambert@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <stdio.h> 19 #include <pthread.h> 20 #include "local.h" 21 22 int 23 writefn(void *cookie, const char *buf, int size) 24 { 25 return 0; 26 } 27 28 void 29 fopen_thread(void *v) 30 { 31 FILE *file; 32 int i; 33 34 for (i = 0; i < 4096; i++) { 35 file = fwopen(&i, writefn); 36 if (file != NULL) { 37 fputc('0', file); 38 pthread_yield(); 39 fclose(file); 40 } 41 } 42 } 43 44 int 45 main(void) 46 { 47 run_threads(fopen_thread, NULL); 48 exit(0); 49 } 50