/******************************************************************************/
/* */
/* Copyright (c) Ulrich Drepper <drepper@redhat.com> */
/* Copyright (c) International Business Machines Corp., 2009 */
/* */
/* This program is free software; you can redistribute it and/or modify */
/* it under the terms of the GNU General Public License as published by */
/* the Free Software Foundation; either version 2 of the License, or */
/* (at your option) any later version. */
/* */
/* This program is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
/* the GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software */
/* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
/* */
/******************************************************************************/
/******************************************************************************/
/* */
/* File: pipe2_02.c */
/* */
/* Description: This Program tests the new system call introduced in 2.6.27. */
/* Ulrich´s comment as in: */
/* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=be61a86d7237dd80510615f38ae21d6e1e98660c */
/* which says: */
/* This patch adds O_NONBLOCK support to pipe2. It is minimally more involved*/
/* than the patches for eventfd et.al but still trivial. The interfaces of */
/* the create_write_pipe and create_read_pipe helper functions were changed */
/* and the one other caller as well. */
/* The following test must be adjusted for architectures other than x86 and */
/* x86-64 and in case the syscall numbers changed. */
/* */
/* Usage: <for command-line> */
/* pipe2_02 [-c n] [-e][-i n] [-I x] [-p x] [-t] */
/* where, -c n : Run n copies concurrently. */
/* -e : Turn on errno logging. */
/* -i n : Execute test n times. */
/* -I x : Execute test for x seconds. */
/* -P x : Pause for x seconds between iterations. */
/* -t : Turn on syscall timing. */
/* */
/* Total Tests: 1 */
/* */
/* Test Name: pipe2_02 */
/* */
/* Author: Ulrich Drepper <drepper@redhat.com> */
/* */
/* History: Created - Jan 13 2009 - Ulrich Drepper <drepper@redhat.com> */
/* Ported to LTP */
/* - Jan 13 2009 - Subrata <subrata@linux.vnet.ibm.com> */
/******************************************************************************/
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <errno.h>
#include "test.h"
#include "lapi/fcntl.h"
#include "lapi/syscalls.h"
char *TCID = "pipe2_02";
int testno;
int TST_TOTAL = 1;
/* Extern Global Functions */
/******************************************************************************/
/* */
/* Function: cleanup */
/* */
/* Description: Performs all one time clean up for this test on successful */
/* completion, premature exit or failure. Closes all temporary */
/* files, removes all temporary directories exits the test with */
/* appropriate return code by calling tst_exit() function. */
/* */
/* Input: None. */
/* */
/* Output: None. */
/* */
/* Return: On failure - Exits calling tst_exit(). Non '0' return code. */
/* On success - Exits calling tst_exit(). With '0' return code. */
/* */
/******************************************************************************/
void cleanup(void)
{
tst_rmdir();
}
/* Local Functions */
/******************************************************************************/
/* */
/* Function: setup */
/* */
/* Description: Performs all one time setup for this test. This function is */
/* typically used to capture signals, create temporary dirs */
/* and temporary files that may be used in the course of this */
/* test. */
/* */
/* Input: None. */
/* */
/* Output: None. */
/* */
/* Return: On failure - Exits by calling cleanup(). */
/* On success - returns 0. */
/* */
/******************************************************************************/
void setup(void)
{
/* Capture signals if any */
/* Create temporary directories */
TEST_PAUSE;
tst_tmpdir();
}
int main(int argc, char *argv[])
{
int fds[2], fl, i;
int lc;
tst_parse_opts(argc, argv, NULL, NULL);
if ((tst_kvercmp(2, 6, 27)) < 0) {
tst_brkm(TCONF,
NULL,
"This test can only run on kernels that are 2.6.27 and higher");
}
setup();
for (lc = 0; TEST_LOOPING(lc); ++lc) {
tst_count = 0;
for (testno = 0; testno < TST_TOTAL; ++testno) {
if (ltp_syscall(__NR_pipe2, fds, 0) == -1) {
tst_brkm(TFAIL, cleanup, "pipe2(0) failed");
}
for (i = 0; i < 2; ++i) {
fl = fcntl(fds[i], F_GETFL);
if (fl == -1) {
tst_brkm(TBROK, cleanup,
"fcntl failed");
}
if (fl & O_NONBLOCK) {
tst_brkm(TFAIL,
cleanup, "pipe2(0) set non-blocking mode for fds[%d]",
i);
}
close(fds[i]);
}
if (ltp_syscall(__NR_pipe2, fds, O_NONBLOCK) == -1) {
tst_brkm(TFAIL, cleanup,
"pipe2(O_NONBLOCK) failed");
}
for (i = 0; i < 2; ++i) {
fl = fcntl(fds[i], F_GETFL);
if (fl == -1) {
tst_brkm(TBROK, cleanup,
"fcntl failed");
}
if ((fl & O_NONBLOCK) == 0) {
tst_brkm(TFAIL,
cleanup, "pipe2(O_NONBLOCK) does not set non-blocking mode for fds[%d]\n",
i);
}
close(fds[i]);
}
tst_resm(TPASS, "pipe2(O_NONBLOCK) PASSED");
cleanup();
}
}
tst_exit();
}