1/*
2* Copyright (c) 2004, Bull S.A..  All rights reserved.
3* Created by: Sebastien Decugis
4
5* This program is free software; you can redistribute it and/or modify it
6* under the terms of version 2 of the GNU General Public License as
7* published by the Free Software Foundation.
8*
9* This program is distributed in the hope that it would be useful, but
10* WITHOUT ANY WARRANTY; without even the implied warranty of
11* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12*
13* You should have received a copy of the GNU General Public License along
14* with this program; if not, write the Free Software Foundation, Inc., 59
15* Temple Place - Suite 330, Boston MA 02111-1307, USA.
16
17
18* This sample test aims to check the following assertion:
19*
20* The time left until an alarm clock is triggered is reset to zero,
21* and the alarm, if any, is canceled
22
23* The steps are:
24* -> Trig an alarm
25* -> fork
26* -> Check the alarm is not running in the child process.
27* -> join the child
28
29* The test fails if the child has a pending alarm.
30
31*/
32
33
34/* We are testing conformance to IEEE Std 1003.1, 2003 Edition */
35#define _POSIX_C_SOURCE 200112L
36
37/********************************************************************************************/
38/****************************** standard includes *****************************************/
39/********************************************************************************************/
40#include <pthread.h>
41 #include <stdarg.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45 #include <unistd.h>
46
47#include <sys/wait.h>
48 #include <errno.h>
49
50
51/********************************************************************************************/
52/******************************   Test framework   *****************************************/
53/********************************************************************************************/
54#include "testfrmw.h"
55 #include "testfrmw.c"
56/* This header is responsible for defining the following macros:
57 * UNRESOLVED(ret, descr);
58 *    where descr is a description of the error and ret is an int (error code for example)
59 * FAILED(descr);
60 *    where descr is a short text saying why the test has failed.
61 * PASSED();
62 *    No parameter.
63 *
64 * Both three macros shall terminate the calling process.
65 * The testcase shall not terminate in any other maneer.
66 *
67 * The other file defines the functions
68 * void output_init()
69 * void output(char * string, ...)
70 *
71 * Those may be used to output information.
72 */
73
74/********************************************************************************************/
75/********************************** Configuration ******************************************/
76/********************************************************************************************/
77#ifndef VERBOSE
78#define VERBOSE 1
79#endif
80
81/********************************************************************************************/
82/***********************************    Test case   *****************************************/
83/********************************************************************************************/
84
85/* The main test function. */
86int main( int argc, char * argv[] )
87{
88	int ret, status;
89	pid_t child, ctl;
90
91	/* Initialize output */
92	output_init();
93
94	/* Set the alarm pending */
95	alarm( 10 );
96
97	/* Check the alarm() behavior */
98	ret = alarm( 10 );
99
100	if ( ret == 0 )
101	{
102		FAILED( "the alarm() routine does not behave as expected" );
103	}
104
105	/* Create the child */
106	child = fork();
107
108	if ( child == ( pid_t ) - 1 )
109	{
110		UNRESOLVED( errno, "Failed to fork" );
111	}
112
113	/* child */
114	if ( child == ( pid_t ) 0 )
115	{
116
117		ret = alarm( 10 );
118
119		if ( ret != 0 )
120		{
121			FAILED( "The child alarm pending was not reset." );
122		}
123
124		/* We're done */
125		exit( PTS_PASS );
126	}
127
128	/* Parent joins the child */
129	ctl = waitpid( child, &status, 0 );
130
131	if ( ctl != child )
132	{
133		UNRESOLVED( errno, "Waitpid returned the wrong PID" );
134	}
135
136	if ( ( !WIFEXITED( status ) ) || ( WEXITSTATUS( status ) != PTS_PASS ) )
137	{
138		FAILED( "Child exited abnormally" );
139	}
140
141	alarm( 0 );
142
143	/* Test passed */
144#if VERBOSE > 0
145
146	output( "Test passed\n" );
147
148#endif
149
150	PASSED;
151}
152
153
154