125 lines
5.7 KiB
C
125 lines
5.7 KiB
C
/******************************************************************************/
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/* */
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/* Copyright (c) Ulrich Drepper <drepper@redhat.com> */
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/* Copyright (c) International Business Machines Corp., 2009 */
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/* */
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/* This program is free software; you can redistribute it and/or modify */
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/* it under the terms of the GNU General Public License as published by */
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/* the Free Software Foundation; either version 2 of the License, or */
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/* (at your option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, */
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/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
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/* the GNU General Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public License */
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/* along with this program; if not, write to the Free Software */
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/* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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/* */
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/******************************************************************************/
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/******************************************************************************/
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/* */
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/* File: eventfd2_01.c */
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/* */
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/* Description: This Program tests the new system call introduced in 2.6.27. */
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/* Ulrich´s comment as in: */
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/* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b087498eb5605673b0f260a7620d91818cd72304 */
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/* says: */
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/* This patch adds the new eventfd2 syscall. It extends the old eventfd */
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/* syscall by one parameter which is meant to hold a flag value. In this */
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/* patch the only flag support is EFD_CLOEXEC which causes the close-on-exec */
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/* flag for the returned file descriptor to be set. A new name EFD_CLOEXEC is */
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/* introduced which in this implementation must have the same value as */
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/* O_CLOEXEC. The following test must be adjusted for architectures other than*/
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/* x86 and x86-64 and in case the syscall numbers changed. */
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/* */
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/* Usage: <for command-line> */
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/* eventfd2_01 [-c n] [-e][-i n] [-I x] [-p x] [-t] */
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/* where, -c n : Run n copies concurrently. */
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/* -e : Turn on errno logging. */
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/* -i n : Execute test n times. */
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/* -I x : Execute test for x seconds. */
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/* -P x : Pause for x seconds between iterations. */
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/* -t : Turn on syscall timing. */
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/* */
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/* Total Tests: 1 */
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/* */
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/* Test Name: eventfd2_01 */
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/* */
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/* Author: Ulrich Drepper <drepper@redhat.com> */
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/* */
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/* History: Created - Jan 08 2009 - Ulrich Drepper <drepper@redhat.com> */
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/* Ported to LTP */
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/* - Jan 08 2009 - Subrata <subrata@linux.vnet.ibm.com> */
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/******************************************************************************/
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <errno.h>
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#include "test.h"
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#include "lapi/fcntl.h"
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#include "lapi/syscalls.h"
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#define EFD_CLOEXEC O_CLOEXEC
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char *TCID = "eventfd2_01";
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int testno;
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int TST_TOTAL = 1;
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void cleanup(void)
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{
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tst_rmdir();
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}
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void setup(void)
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{
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TEST_PAUSE;
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tst_tmpdir();
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}
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int main(int argc, char *argv[])
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{
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int fd, coe;
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tst_parse_opts(argc, argv, NULL, NULL);
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if ((tst_kvercmp(2, 6, 27)) < 0) {
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tst_brkm(TCONF, NULL,
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"This test can only run on kernels that are 2.6.27 and higher");
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}
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setup();
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fd = ltp_syscall(__NR_eventfd2, 1, 0);
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if (fd == -1) {
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tst_brkm(TFAIL, cleanup, "eventfd2(0) failed");
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}
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coe = fcntl(fd, F_GETFD);
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if (coe == -1) {
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tst_brkm(TBROK, cleanup, "fcntl failed");
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}
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if (coe & FD_CLOEXEC) {
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tst_brkm(TFAIL, cleanup, "eventfd2(0) set close-on-exec flag");
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}
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close(fd);
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fd = ltp_syscall(__NR_eventfd2, 1, EFD_CLOEXEC);
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if (fd == -1) {
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tst_brkm(TFAIL, cleanup, "eventfd2(EFD_CLOEXEC) failed");
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}
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coe = fcntl(fd, F_GETFD);
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if (coe == -1) {
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tst_brkm(TBROK, cleanup, "fcntl failed");
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}
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if ((coe & FD_CLOEXEC) == 0) {
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tst_brkm(TFAIL, cleanup,
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"eventfd2(EFD_CLOEXEC) does not set close-on-exec flag");
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}
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close(fd);
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tst_resm(TPASS, "eventfd2(EFD_CLOEXEC) Passed");
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cleanup();
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tst_exit();
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}
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