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gerrit-public.fairphone.software / platform / external / ltp / 27f88e7ef049d04e6a826232e7b78c0f77eeeb1e / . / testcases / kernel / syscalls / signalfd4 / signalfd4_02.c
blob: 6b2e1d0e170fa7e3c8e05d7bab537849e1b0d104 [file] [log] [blame]
subrata_modakfc49f1f2009-01-16 10:29:50 +0000[diff] [blame]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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
19/* */
20/******************************************************************************/
21/******************************************************************************/
22/* */
23/* File: signalfd4_02.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=5fb5e04926a54bc1c22bba7ca166840f4476196f */
28/* which says: */
29/* This patch adds support for the SFD_NONBLOCK flag to signalfd4. 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/* signalfd4_02 [-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: signalfd4_02 */
46/* */
47/* Author: Ulrich Drepper <drepper@redhat.com> */
48/* */
49/* History: Created - Jan 13 2009 - Ulrich Drepper <drepper@redhat.com> */
50/* Ported to LTP */
51/* - Jan 13 2009 - Subrata <subrata@linux.vnet.ibm.com> */
52/******************************************************************************/
53#include <fcntl.h>
54#include <signal.h>
55#include <stdio.h>
56#include <unistd.h>
57#include <sys/syscall.h>
58
59/* Harness Specific Include Files. */
60#include "test.h"
61#include "usctest.h"
subrata_modak115006c2009-02-04 06:16:40 +0000[diff] [blame]62#include "linux_syscall_numbers.h"
subrata_modakfc49f1f2009-01-16 10:29:50 +0000[diff] [blame]63
64#define SFD_NONBLOCK O_NONBLOCK
65
66/* Extern Global Variables */
67extern int Tst_count; /* counter for tst_xxx routines. */
68extern char *TESTDIR; /* temporary dir created by tst_tmpdir() */
69
70/* Global Variables */
71char *TCID = "signalfd4_02"; /* test program identifier. */
72int testno;
73int TST_TOTAL = 1; /* total number of tests in this file. */
74
75/* Extern Global Functions */
76/******************************************************************************/
77/* */
78/* Function: cleanup */
79/* */
80/* Description: Performs all one time clean up for this test on successful */
81/* completion, premature exit or failure. Closes all temporary */
82/* files, removes all temporary directories exits the test with */
83/* appropriate return code by calling tst_exit() function. */
84/* */
85/* Input: None. */
86/* */
87/* Output: None. */
88/* */
89/* Return: On failure - Exits calling tst_exit(). Non '0' return code. */
90/* On success - Exits calling tst_exit(). With '0' return code. */
91/* */
92/******************************************************************************/
93extern void cleanup() {
94 /* Remove tmp dir and all files in it */
95 TEST_CLEANUP;
96 tst_rmdir();
97
98 /* Exit with appropriate return code. */
99 tst_exit();
100}
101
102/* Local Functions */
103/******************************************************************************/
104/* */
105/* Function: setup */
106/* */
107/* Description: Performs all one time setup for this test. This function is */
108/* typically used to capture signals, create temporary dirs */
109/* and temporary files that may be used in the course of this */
110/* test. */
111/* */
112/* Input: None. */
113/* */
114/* Output: None. */
115/* */
116/* Return: On failure - Exits by calling cleanup(). */
117/* On success - returns 0. */
118/* */
119/******************************************************************************/
120void setup() {
121 /* Capture signals if any */
122 /* Create temporary directories */
123 TEST_PAUSE;
124 tst_tmpdir();
125}
126
127int main (int argc, char *argv[]) {
128 sigset_t ss;
129 int fd, fl;
130 int lc; /* loop counter */
131 char *msg; /* message returned from parse_opts */
132
133 /* Parse standard options given to run the test. */
134 msg = parse_opts(argc, argv, (option_t *) NULL, NULL);
135 if (msg != (char *) NULL) {
136 tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
137 tst_exit();
138 }
139 if((tst_kvercmp(2, 6, 27)) < 0) {
140 tst_resm(TCONF, "This test can only run on kernels that are 2.6.27 and higher");
141 tst_exit();
142 }
143 setup();
144
145 /* Check looping state if -i option given */
146 for (lc = 0; TEST_LOOPING(lc); ++lc) {
147 Tst_count = 0;
148 for (testno=0; testno < TST_TOTAL; ++testno) {
149 sigemptyset (&ss);
150 sigaddset (&ss, SIGUSR1);
151 fd = syscall (__NR_signalfd4, -1, &ss, 8, 0);
152 if (fd == -1) {
153 tst_resm(TFAIL, "signalfd4(0) failed");
154 cleanup();
155 tst_exit();
156 }
157 fl = fcntl (fd, F_GETFL);
158 if (fl == -1) {
159 tst_brkm(TBROK, cleanup, "fcntl failed");
160 tst_exit();
161 }
162 if (fl & O_NONBLOCK) {
163 tst_resm(TFAIL, "signalfd4(0) set non-blocking mode");
164 cleanup();
165 tst_exit();
166 }
167 close (fd);
168
169 fd = syscall (__NR_signalfd4, -1, &ss, 8, SFD_NONBLOCK);
170 if (fd == -1) {
171 tst_resm(TFAIL, "signalfd4(SFD_NONBLOCK) failed");
172 cleanup();
173 tst_exit();
174 }
175 fl = fcntl (fd, F_GETFL);
176 if (fl == -1) {
177 tst_brkm(TBROK, cleanup, "fcntl failed");
178 tst_exit();
179 }
180 if ((fl & O_NONBLOCK) == 0) {
181 tst_resm(TFAIL, "signalfd4(SFD_NONBLOCK) does not set non-blocking mode");
182 cleanup();
183 tst_exit();
184 }
185 close (fd);
186 tst_resm(TPASS, "signalfd4(SFD_NONBLOCK) PASSED");
187 cleanup();
188 }
189 }
190 tst_exit();
191}