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65 lines
1.3 KiB
65 lines
1.3 KiB
7 months ago
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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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*/
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/*
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* Test Description:
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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 = 0;
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static void run(void)
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{
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unsigned int ret;
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alarms_fired = 0;
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ret = alarm(10);
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if (ret)
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tst_res(TFAIL, "alarm() returned non-zero");
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else
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tst_res(TPASS, "alarm() returned zero");
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sleep(1);
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ret = alarm(1);
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if (ret == 9)
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tst_res(TPASS, "alarm() returned remainder correctly");
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else
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tst_res(TFAIL, "alarm() returned wrong remained %u", ret);
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sleep(2);
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if (alarms_fired == 1)
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tst_res(TPASS, "alarm handler fired once");
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else
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tst_res(TFAIL, "alarm handler filred %u times", alarms_fired);
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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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