125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) Wipro Technologies Ltd, 2003. All Rights Reserved.
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*
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* Author: Aniruddha Marathe <aniruddha.marathe@wipro.com>
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*
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* Ported to new library:
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* 07/2019 Christian Amann <camann@suse.com>
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*/
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/*
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* This tests the timer_settime(2) syscall under various conditions:
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*
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* 1) General initialization: No old_value, no flags, 5-second-timer
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* 2) Setting a pointer to a itimerspec struct as old_set parameter
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* 3) Using a periodic timer
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* 4) Using absolute time
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*
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* All of these tests are supposed to be successful.
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*/
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#include <stdlib.h>
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#include <errno.h>
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#include <time.h>
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#include <signal.h>
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#include "tst_test.h"
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#include "lapi/common_timers.h"
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static struct timespec timenow;
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static struct itimerspec new_set, old_set;
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static kernel_timer_t timer;
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static struct testcase {
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struct itimerspec *old_ptr;
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int it_value_tv_sec;
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int it_interval_tv_sec;
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int flag;
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char *description;
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} tcases[] = {
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{NULL, 5, 0, 0, "general initialization"},
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{&old_set, 5, 0, 0, "setting old_value"},
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{&old_set, 0, 5, 0, "using periodic timer"},
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{&old_set, 5, 0, TIMER_ABSTIME, "using absolute time"},
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};
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static void run(unsigned int n)
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{
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unsigned int i;
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struct testcase *tc = &tcases[n];
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tst_res(TINFO, "Testing for %s:", tc->description);
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for (i = 0; i < CLOCKS_DEFINED; ++i) {
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clock_t clock = clock_list[i];
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if (clock == CLOCK_PROCESS_CPUTIME_ID ||
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clock == CLOCK_THREAD_CPUTIME_ID) {
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if (!have_cputime_timers())
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continue;
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}
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TEST(tst_syscall(__NR_timer_create, clock, NULL, &timer));
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if (TST_RET != 0) {
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if (possibly_unsupported(clock) &&
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(TST_ERR == EINVAL || TST_ERR == ENOTSUP)) {
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tst_res(TCONF | TTERRNO, "%s unsupported",
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get_clock_str(clock));
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} else {
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tst_res(TFAIL | TTERRNO,
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"timer_create(%s) failed",
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get_clock_str(clock));
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}
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continue;
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}
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memset(&new_set, 0, sizeof(new_set));
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memset(&old_set, 0, sizeof(old_set));
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new_set.it_value.tv_sec = tc->it_value_tv_sec;
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new_set.it_interval.tv_sec = tc->it_interval_tv_sec;
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if (tc->flag & TIMER_ABSTIME) {
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if (clock_gettime(clock, &timenow) < 0) {
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tst_res(TFAIL,
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"clock_gettime(%s) failed - skipping the test",
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get_clock_str(clock));
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continue;
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}
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new_set.it_value.tv_sec += timenow.tv_sec;
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}
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TEST(tst_syscall(__NR_timer_settime, timer,
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tc->flag, &new_set, tc->old_ptr));
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if (TST_RET != 0) {
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tst_res(TFAIL | TTERRNO, "%s failed",
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get_clock_str(clock));
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} else {
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tst_res(TPASS, "%s was successful",
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get_clock_str(clock));
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}
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TEST(tst_syscall(__NR_timer_delete, timer));
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if (TST_RET != 0)
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tst_res(TFAIL | TTERRNO, "timer_delete() failed!");
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}
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}
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static void sighandler(int sig)
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{
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/* sighandler for CLOCK_*_ALARM */
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tst_res(TINFO, "Caught signal %s", tst_strsig(sig));
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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 = run,
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.needs_root = 1,
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.tcnt = ARRAY_SIZE(tcases),
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.setup = setup,
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};
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