1 /******************************************************************************/ 2 /* */ 3 /* Copyright (c) Ulrich Drepper <drepper (at) redhat.com> */ 4 /* Copyright (c) International Business Machines Corp., 2009 */ 5 /* */ 6 /* This program is free software; you can redistribute it and/or modify */ 7 /* it under the terms of the GNU General Public License as published by */ 8 /* the Free Software Foundation; either version 2 of the License, or */ 9 /* (at your option) any later version. */ 10 /* */ 11 /* This program is distributed in the hope that it will be useful, */ 12 /* but WITHOUT ANY WARRANTY; without even the implied warranty of */ 13 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */ 14 /* the GNU General Public License for more details. */ 15 /* */ 16 /* You should have received a copy of the GNU General Public License */ 17 /* along with this program; if not, write to the Free Software */ 18 /* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ 19 /* */ 20 /******************************************************************************/ 21 /******************************************************************************/ 22 /* */ 23 /* File: timerfd03.c */ 24 /* */ 25 /* Description: This Program tests the new system call introduced in 2.6.27. */ 26 /* Ulrichs comment as in: */ 27 /* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6b1ef0e60d42f2fdaec26baee8327eb156347b4f */ 28 /* which says: */ 29 /* This patch adds support for the TFD_NONBLOCK flag to timerfd_create. The */ 30 /* additional changes needed are minimal. The following test must be adjusted */ 31 /* for architectures other than x86 and x86-64 and in case the syscall numbers*/ 32 /* changed. */ 33 /* */ 34 /* Usage: <for command-line> */ 35 /* timerfd03 [-c n] [-e][-i n] [-I x] [-p x] [-t] */ 36 /* where, -c n : Run n copies concurrently. */ 37 /* -e : Turn on errno logging. */ 38 /* -i n : Execute test n times. */ 39 /* -I x : Execute test for x seconds. */ 40 /* -P x : Pause for x seconds between iterations. */ 41 /* -t : Turn on syscall timing. */ 42 /* */ 43 /* Total Tests: 1 */ 44 /* */ 45 /* Test Name: timerfd03 */ 46 /* */ 47 /* Author: Ulrich Drepper <drepper (at) redhat.com> */ 48 /* */ 49 /* History: Created - Jan 13 2009 - Ulrich Drepper <drepper (at) redhat.com> */ 50 /* Ported to LTP */ 51 /* - Jan 13 2009 - Subrata <subrata (at) linux.vnet.ibm.com> */ 52 /******************************************************************************/ 53 #include <fcntl.h> 54 #include <stdio.h> 55 #include <time.h> 56 #include <unistd.h> 57 #include <sys/syscall.h> 58 #include <errno.h> 59 60 #include "test.h" 61 #include "lapi/fcntl.h" 62 #include "linux_syscall_numbers.h" 63 64 #define TFD_NONBLOCK O_NONBLOCK 65 66 char *TCID = "timerfd03"; 67 int testno; 68 int TST_TOTAL = 1; 69 70 /* Extern Global Functions */ 71 /******************************************************************************/ 72 /* */ 73 /* Function: cleanup */ 74 /* */ 75 /* Description: Performs all one time clean up for this test on successful */ 76 /* completion, premature exit or failure. Closes all temporary */ 77 /* files, removes all temporary directories exits the test with */ 78 /* appropriate return code by calling tst_exit() function. */ 79 /* */ 80 /* Input: None. */ 81 /* */ 82 /* Output: None. */ 83 /* */ 84 /* Return: On failure - Exits calling tst_exit(). Non '0' return code. */ 85 /* On success - Exits calling tst_exit(). With '0' return code. */ 86 /* */ 87 /******************************************************************************/ 88 void cleanup(void) 89 { 90 91 tst_rmdir(); 92 93 } 94 95 /* Local Functions */ 96 /******************************************************************************/ 97 /* */ 98 /* Function: setup */ 99 /* */ 100 /* Description: Performs all one time setup for this test. This function is */ 101 /* typically used to capture signals, create temporary dirs */ 102 /* and temporary files that may be used in the course of this */ 103 /* test. */ 104 /* */ 105 /* Input: None. */ 106 /* */ 107 /* Output: None. */ 108 /* */ 109 /* Return: On failure - Exits by calling cleanup(). */ 110 /* On success - returns 0. */ 111 /* */ 112 /******************************************************************************/ 113 void setup(void) 114 { 115 /* Capture signals if any */ 116 /* Create temporary directories */ 117 TEST_PAUSE; 118 tst_tmpdir(); 119 } 120 121 int main(int argc, char *argv[]) 122 { 123 int fd, fl; 124 int lc; 125 126 tst_parse_opts(argc, argv, NULL, NULL); 127 if ((tst_kvercmp(2, 6, 27)) < 0) { 128 tst_brkm(TCONF, 129 NULL, 130 "This test can only run on kernels that are 2.6.27 and higher"); 131 } 132 setup(); 133 134 for (lc = 0; TEST_LOOPING(lc); ++lc) { 135 tst_count = 0; 136 for (testno = 0; testno < TST_TOTAL; ++testno) { 137 fd = ltp_syscall(__NR_timerfd_create, 138 CLOCK_REALTIME, 0); 139 if (fd == -1) { 140 tst_brkm(TFAIL, cleanup, 141 "timerfd_create(0) failed"); 142 } 143 fl = fcntl(fd, F_GETFL); 144 if (fl == -1) { 145 tst_brkm(TBROK, cleanup, "fcntl failed"); 146 } 147 if (fl & O_NONBLOCK) { 148 tst_brkm(TFAIL, 149 cleanup, 150 "timerfd_create(0) set non-blocking mode"); 151 } 152 close(fd); 153 154 fd = ltp_syscall(__NR_timerfd_create, CLOCK_REALTIME, 155 TFD_NONBLOCK); 156 if (fd == -1) { 157 tst_brkm(TFAIL, 158 cleanup, 159 "timerfd_create(TFD_NONBLOCK) failed"); 160 } 161 fl = fcntl(fd, F_GETFL); 162 if (fl == -1) { 163 tst_brkm(TBROK, cleanup, "fcntl failed"); 164 } 165 if ((fl & O_NONBLOCK) == 0) { 166 tst_brkm(TFAIL, 167 cleanup, 168 "timerfd_create(TFD_NONBLOCK) set non-blocking mode"); 169 } 170 close(fd); 171 tst_resm(TPASS, "timerfd_create(TFD_NONBLOCK) PASSED"); 172 cleanup(); 173 } 174 } 175 tst_exit(); 176 } 177
