| /******************************************************************************/ |
| /* */ |
| /* 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 "linux_syscall_numbers.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; |
| const char *msg; |
| |
| msg = parse_opts(argc, argv, NULL, NULL); |
| if (msg != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| } |
| 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(); |
| } |