1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include "lt_timer_test.h"
32
33 static int g_almHandlerFlag;
SigAlmHandler(int sig)34 static void SigAlmHandler(int sig)
35 {
36 g_almHandlerFlag++;
37 }
38
TimerTest(void)39 static int TimerTest(void)
40 {
41 struct itimerval itv;
42 int ret;
43
44 ret = getitimer(ITIMER_REAL, &itv);
45 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
46
47 itv.it_value.tv_sec = 2; // 2, seconds.
48 itv.it_value.tv_usec = 500000; // 500000, 500ms.
49 itv.it_interval.tv_sec = 1;
50 itv.it_interval.tv_usec = 500000; // 500000, 500ms.
51 (void)signal(SIGALRM, SigAlmHandler);
52
53 ret = setitimer(ITIMER_REAL, &itv, NULL);
54 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
55
56 LogPrintln("sleep %ds", 3); // 3, this sleep may be interrupted by the timer
57 sleep(3); // 3, this sleep may be interrupted by the timer
58 LogPrintln("sleep end, almHandlerFlag %d\n", g_almHandlerFlag);
59 ICUNIT_ASSERT_EQUAL(g_almHandlerFlag, 1, g_almHandlerFlag);
60
61 LogPrintln("sleep %ds", 2); // 2, this sleep may be interrupted by the timer
62 sleep(2); // 2, this sleep may be interrupted by the timer
63 LogPrintln("sleep end, almHandlerFlag %d\n", g_almHandlerFlag);
64 ICUNIT_ASSERT_EQUAL(g_almHandlerFlag, 2, g_almHandlerFlag); // 2, assert the g_almHandlerFlag.
65
66 LogPrintln("sleep %ds", 2); // 2, this sleep may be interrupted by the timer
67 sleep(2); // 2, this sleep may be interrupted by the timer
68 LogPrintln("sleep end, almHandlerFlag %d\n", g_almHandlerFlag);
69 ICUNIT_ASSERT_EQUAL(g_almHandlerFlag, 3, g_almHandlerFlag); // 3, assert the g_almHandlerFlag.
70
71 ret = getitimer(ITIMER_REAL, &itv);
72 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
73
74 ICUNIT_ASSERT_EQUAL(itv.it_interval.tv_sec, 1, itv.it_interval.tv_sec);
75 ICUNIT_ASSERT_EQUAL(itv.it_interval.tv_usec, 500000, itv.it_interval.tv_usec); // 500000, assert the tv_usec.
76
77 /* stop this timer */
78 itv.it_value.tv_sec = 0;
79 itv.it_value.tv_usec = 0;
80 itv.it_interval.tv_sec = 0;
81 itv.it_interval.tv_usec = 0;
82 ret = setitimer(ITIMER_REAL, &itv, NULL);
83 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
84
85 return 0;
86 }
87
TimerTest002(void)88 void TimerTest002(void)
89 {
90 TEST_ADD_CASE(__FUNCTION__, TimerTest, TEST_POSIX, TEST_SWTMR, TEST_LEVEL0, TEST_FUNCTION);
91 }
92