1 /* 2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * Further, this software is distributed without any warranty that it is 13 * free of the rightful claim of any third person regarding infringement 14 * or the like. Any license provided herein, whether implied or 15 * otherwise, applies only to this software file. Patent licenses, if 16 * any, provided herein do not apply to combinations of this program with 17 * other software, or any other product whatsoever. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, write the Free Software Foundation, Inc., 21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 22 * 23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 24 * Mountain View, CA 94043, or: 25 * 26 * http://www.sgi.com 27 * 28 * For further information regarding this notice, see: 29 * 30 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 31 */ 32 /* 33 * AUTHOR : Richard Logan 34 * CO-PILOT : William Roske 35 * DATE STARTED : 02/24/93 36 * 37 * 1.) select(2) to a fd of regular file with no I/O and small timeout 38 */ 39 40 #include <errno.h> 41 #include <signal.h> 42 #include <fcntl.h> 43 #include <signal.h> 44 #include <string.h> 45 #include <sys/param.h> 46 #include <sys/types.h> 47 #include <sys/time.h> 48 49 #include "test.h" 50 51 #define FILENAME "select01" 52 53 static void setup(void); 54 static void cleanup(void); 55 56 char *TCID = "select01"; 57 int TST_TOTAL = 1; 58 59 int Fd = -1; 60 fd_set Readfds; 61 62 int main(int ac, char **av) 63 { 64 int lc; 65 struct timeval timeout; 66 long test_time = 0; /* in usecs */ 67 68 tst_parse_opts(ac, av, NULL, NULL); 69 70 setup(); 71 72 for (lc = 0; TEST_LOOPING(lc); lc++) { 73 tst_count = 0; 74 75 test_time = ((lc % 2000) * 100000); /* 100 milli-seconds */ 76 77 if (test_time > 1000000 * 60) 78 test_time = test_time % (1000000 * 60); 79 80 timeout.tv_sec = test_time / 1000000; 81 timeout.tv_usec = test_time - (timeout.tv_sec * 1000000); 82 83 TEST(select(4, &Readfds, 0, 0, &timeout)); 84 85 if (TEST_RETURN == -1) { 86 tst_resm(TFAIL, 87 "%d select(4, &Readfds, 0, 0, &timeout), timeout = %ld usecs, errno=%d", 88 lc, test_time, errno); 89 } 90 91 tst_resm(TPASS, 92 "select(4, &Readfds, 0, 0, &timeout) timeout = %ld usecs", 93 test_time); 94 95 } 96 97 cleanup(); 98 tst_exit(); 99 } 100 101 static void setup(void) 102 { 103 tst_sig(FORK, DEF_HANDLER, cleanup); 104 105 TEST_PAUSE; 106 107 tst_tmpdir(); 108 109 if ((Fd = open(FILENAME, O_CREAT | O_RDWR, 0777)) == -1) 110 tst_brkm(TBROK | TERRNO, cleanup, 111 "open(%s, O_CREAT | O_RDWR) failed", FILENAME); 112 113 FD_ZERO(&Readfds); 114 FD_SET(Fd, &Readfds); 115 } 116 117 static void cleanup(void) 118 { 119 if (Fd >= 0) { 120 if (close(Fd) == -1) 121 tst_resm(TWARN | TERRNO, "close(%s) failed", FILENAME); 122 Fd = -1; 123 } 124 125 tst_rmdir(); 126 } 127
