50 lines
969 B
C
50 lines
969 B
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001,2005
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* Ported to LTP: Wayne Boyer
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* 06/2005 Test for alarm cleanup by Amos Waterland
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*
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* Copyright (c) 2018 Cyril Hrubis <chrubis@suse.cz>
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* Copyright (c) Linux Test Project, 2006-2022
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*/
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/*\
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* [Description]
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*
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* The return value of the alarm system call should be equal to the
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* amount previously remaining in the alarm clock.
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* A SIGALRM signal should be received after the specified amount of
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* time has elapsed.
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*/
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#include "tst_test.h"
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static volatile int alarms_fired;
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static void run(void)
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{
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alarms_fired = 0;
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TST_EXP_PASS(alarm(10));
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sleep(1);
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TST_EXP_VAL(alarm(1), 9);
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sleep(2);
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TST_EXP_EQ_LU(alarms_fired, 1);
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}
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static void sighandler(int sig)
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{
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if (sig == SIGALRM)
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alarms_fired++;
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}
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static void setup(void)
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{
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SAFE_SIGNAL(SIGALRM, sighandler);
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}
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static struct tst_test test = {
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.test_all = run,
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.setup = setup,
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};
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