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 <unistd.h>
32 #include <signal.h>
33 #include <time.h>
34 #include <sys/time.h>
35 #include <osTest.h>
36 #include "lt_timer_test.h"
37
38 #define SIG SIGALRM
39 #define CLOCKID CLOCK_REALTIME
40
41 static int g_sigHdlCnt;
42 static int g_overRunCnt;
43 static timer_t g_timerID;
44
SigHandler01(int sig)45 static void SigHandler01(int sig)
46 {
47 g_sigHdlCnt++;
48 g_overRunCnt += timer_getoverrun(g_timerID);
49 LogPrintln("signo %d g_sigHdlCnt %d, overrun %d,%d\n", sig, g_sigHdlCnt, g_overRunCnt, timer_getoverrun(g_timerID));
50 }
51
TimerTest(void)52 static int TimerTest(void)
53 {
54 int interval = 3; // 3, seconds
55 timer_t timerid01, timerid02;
56 struct sigevent sev;
57 struct itimerspec its;
58 sigset_t mask;
59 struct sigaction sa;
60 int ret;
61
62 sa.sa_flags = 0;
63 sa.sa_handler = SigHandler01;
64 sigemptyset(&sa.sa_mask);
65 ret = sigaction(SIG, &sa, nullptr);
66 LogPrintln("sigaction %d: %d", SIG, ret);
67 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
68
69 /* Block timer signal */
70 sigemptyset(&mask);
71 sigaddset(&mask, SIG);
72 ret = sigprocmask(SIG_BLOCK, &mask, nullptr);
73 LogPrintln("sigprocmask setmask %d: %d", SIG, ret);
74 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
75
76 /* Create the timer */
77 sev.sigev_notify = SIGEV_SIGNAL;
78 sev.sigev_signo = SIG;
79 sev.sigev_value.sival_ptr = &timerid01;
80 ret = timer_create(CLOCKID, &sev, &timerid01);
81 LogPrintln("timer_create %p: %d", timerid01, ret);
82 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
83
84 g_timerID = timerid01;
85
86 /* Start the timer */
87 its.it_value.tv_sec = 0;
88 its.it_value.tv_nsec = 900000000; // 900000000, 0.9s
89 its.it_interval.tv_sec = its.it_value.tv_sec;
90 its.it_interval.tv_nsec = its.it_value.tv_nsec;
91
92 ret = timer_settime(timerid01, 0, &its, nullptr);
93 LogPrintln("timer_settime %p: %d", timerid01, ret);
94 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
95
96
97 /* Test of evp is NULL */
98 ret = timer_create(CLOCKID, NULL, &timerid02);
99 LogPrintln("timer_settime %p: %d", timerid02, ret);
100 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
101
102 its.it_value.tv_sec = 1;
103 its.it_value.tv_nsec = 0;
104 its.it_interval.tv_sec = its.it_value.tv_sec;
105 its.it_interval.tv_nsec = its.it_value.tv_nsec;
106
107 ret = timer_settime(timerid02, 0, &its, nullptr);
108 LogPrintln("timer_settime %p: %d", timerid02, ret);
109 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
110
111 sleep(6);
112 /* Sleep for a while */
113 LogPrintln("sleep %ds", interval);
114 sleep(interval); // timer signal is blocked, this sleep should not be interrupted
115 ICUNIT_ASSERT_EQUAL(g_sigHdlCnt, 0, g_sigHdlCnt);
116
117 /* Get the timer's time */
118 ret = timer_gettime(timerid01, &its);
119 LogPrintln("timer_gettime %p: %d", timerid01, ret);
120 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
121
122 /* Get the timer's overruns */
123 ret = timer_getoverrun(timerid01);
124 LogPrintln("timer_getoverrun %p: %d", timerid01, ret);
125 ICUNIT_ASSERT_NOT_EQUAL(ret, -1, ret); // before timer deliver, return value of timer_getoverrun is unspecified
126
127 LogPrintln("unblock signal %d", SIG);
128
129 /* Unlock the timer signal */
130 ret = sigprocmask(SIG_UNBLOCK, &mask, nullptr);
131 LogPrintln("sigprocmask unblock %d: %d", SIG, ret);
132 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
133
134 interval = 1;
135 LogPrintln("sleep another %ds", interval);
136 sleep(interval); // this sleep may be interrupted by the timer
137 LogPrintln("sleep time over, g_sigHdlCnt = %d", g_sigHdlCnt);
138
139 LogPrintln("sleep another %ds", interval);
140 sleep(interval); // this sleep may be interrupted by the timer
141 LogPrintln("sleep time over, g_sigHdlCnt = %d", g_sigHdlCnt);
142
143 ret = timer_delete(timerid01);
144 LogPrintln("timer_delete %p %d", timerid01, ret);
145 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
146
147 ret = timer_delete(timerid02);
148 LogPrintln("timer_delete %p %d", timerid02, ret);
149 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
150
151 ICUNIT_ASSERT_NOT_EQUAL(g_sigHdlCnt, 0, g_sigHdlCnt);
152 ICUNIT_ASSERT_NOT_EQUAL(g_overRunCnt, 0, g_overRunCnt);
153
154 return 0;
155 }
156
TimerTest001(void)157 void TimerTest001(void)
158 {
159 TEST_ADD_CASE(__FUNCTION__, TimerTest, TEST_POSIX, TEST_SWTMR, TEST_LEVEL0, TEST_FUNCTION);
160 }
161