1/******************************************************************************/ 2/* */ 3/* Copyright (c) Ulrich Drepper <drepper@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: timerfd02.c */ 24/* */ 25/* Description: This Program tests the new system call introduced in 2.6.27. */ 26/* Ulrich´s comment as in: */ 27/* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=11fcb6c14676023d0bd437841f5dcd670e7990a0 */ 28/* says: */ 29/* The timerfd_create syscall already has a flags parameter. It just is */ 30/* unused so far. This patch changes this by introducing the TFD_CLOEXEC */ 31/* flag to set the close-on-exec flag for the returned file descriptor. A new */ 32/* name TFD_CLOEXEC is introduced which in this implementation must have the */ 33/* same value as O_CLOEXEC. */ 34/* The following test must be adjusted for architectures other than x86 and */ 35/* x86-64 and in case the syscall numbers changed. */ 36/* */ 37/* Usage: <for command-line> */ 38/* timerfd02 [-c n] [-e][-i n] [-I x] [-p x] [-t] */ 39/* where, -c n : Run n copies concurrently. */ 40/* -e : Turn on errno logging. */ 41/* -i n : Execute test n times. */ 42/* -I x : Execute test for x seconds. */ 43/* -P x : Pause for x seconds between iterations. */ 44/* -t : Turn on syscall timing. */ 45/* */ 46/* Total Tests: 1 */ 47/* */ 48/* Test Name: timerfd02 */ 49/* */ 50/* Author: Ulrich Drepper <drepper@redhat.com> */ 51/* */ 52/* History: Created - Jan 08 2009 - Ulrich Drepper <drepper@redhat.com> */ 53/* Ported to LTP */ 54/* - Jan 08 2009 - Subrata <subrata@linux.vnet.ibm.com> */ 55/******************************************************************************/ 56 57#include <fcntl.h> 58#include <stdio.h> 59#include <time.h> 60#include <unistd.h> 61#include <sys/syscall.h> 62#include <errno.h> 63 64#include "test.h" 65#include "lapi/fcntl.h" 66#include "linux_syscall_numbers.h" 67 68#define TFD_CLOEXEC O_CLOEXEC 69 70char *TCID = "timerfd02"; 71int testno; 72int TST_TOTAL = 1; 73 74/* Extern Global Functions */ 75/******************************************************************************/ 76/* */ 77/* Function: cleanup */ 78/* */ 79/* Description: Performs all one time clean up for this test on successful */ 80/* completion, premature exit or failure. Closes all temporary */ 81/* files, removes all temporary directories exits the test with */ 82/* appropriate return code by calling tst_exit() function. */ 83/* */ 84/* Input: None. */ 85/* */ 86/* Output: None. */ 87/* */ 88/* Return: On failure - Exits calling tst_exit(). Non '0' return code. */ 89/* On success - Exits calling tst_exit(). With '0' return code. */ 90/* */ 91/******************************************************************************/ 92void cleanup(void) 93{ 94 95 tst_rmdir(); 96 97} 98 99/* Local Functions */ 100/******************************************************************************/ 101/* */ 102/* Function: setup */ 103/* */ 104/* Description: Performs all one time setup for this test. This function is */ 105/* typically used to capture signals, create temporary dirs */ 106/* and temporary files that may be used in the course of this */ 107/* test. */ 108/* */ 109/* Input: None. */ 110/* */ 111/* Output: None. */ 112/* */ 113/* Return: On failure - Exits by calling cleanup(). */ 114/* On success - returns 0. */ 115/* */ 116/******************************************************************************/ 117void setup(void) 118{ 119 /* Capture signals if any */ 120 /* Create temporary directories */ 121 TEST_PAUSE; 122 tst_tmpdir(); 123} 124 125int main(int argc, char *argv[]) 126{ 127 int fd, coe; 128 int lc; 129 130 tst_parse_opts(argc, argv, NULL, NULL); 131 if ((tst_kvercmp(2, 6, 27)) < 0) { 132 tst_brkm(TCONF, 133 NULL, 134 "This test can only run on kernels that are 2.6.27 and higher"); 135 } 136 setup(); 137 138 for (lc = 0; TEST_LOOPING(lc); ++lc) { 139 tst_count = 0; 140 for (testno = 0; testno < TST_TOTAL; ++testno) { 141 fd = ltp_syscall(__NR_timerfd_create, 142 CLOCK_REALTIME, 0); 143 if (fd == -1) { 144 tst_brkm(TFAIL, cleanup, 145 "timerfd_create(0) failed"); 146 } 147 coe = fcntl(fd, F_GETFD); 148 if (coe == -1) { 149 tst_brkm(TBROK, cleanup, "fcntl failed"); 150 } 151 if (coe & FD_CLOEXEC) { 152 tst_brkm(TFAIL, 153 cleanup, 154 "timerfd_create(0) set close-on-exec flag"); 155 } 156 close(fd); 157 158 fd = ltp_syscall(__NR_timerfd_create, CLOCK_REALTIME, 159 TFD_CLOEXEC); 160 if (fd == -1) { 161 tst_brkm(TFAIL, 162 cleanup, 163 "timerfd_create(TFD_CLOEXEC) failed"); 164 } 165 coe = fcntl(fd, F_GETFD); 166 if (coe == -1) { 167 tst_brkm(TBROK, cleanup, "fcntl failed"); 168 } 169 if ((coe & FD_CLOEXEC) == 0) { 170 tst_brkm(TFAIL, 171 cleanup, 172 "timerfd_create(TFD_CLOEXEC) set close-on-exec flag"); 173 } 174 close(fd); 175 tst_resm(TPASS, "timerfd_create(TFD_CLOEXEC) Passed"); 176 cleanup(); 177 } 178 } 179 tst_exit(); 180} 181