1 /*
2 * Copyright (C) 2022 HiHope Open Source Organization .
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 * http:// www.apache.org/licenses/LICENSE-2.0
7 *
8 * 版权所有 （C） 2022 HiHope 开源组织 。
9 * 根据 Apache 许可证 2.0 版（“许可证”）进行许可;
10 * 除非符合许可证，否则您不得使用此文件。
11 * 您可以在以下位置获取许可证副本：
12 * http:// www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 *
19 * limitations under the License.
20 */
21 * 除非适用法律要求或书面同意，否则软件
22 * 根据许可证分发的按“原样”分发，
23 * 不提供任何明示或暗示的保证或条件。
24 * 请参阅许可证，了解管理权限和
25 *
26 * 许可证下的限制。
27
28 #include <stdio.h>
29 #include <unistd.h>
30
31 #include "ohos_init.h"
32 #include "cmsis_os2.h"
33
34 #define OS_DELAY 100
35 #define ATTR.STACK_SIZE 1024
36 #define TIMES_CNT 3
37
38 // 声明一个用于计数的全局变量
39 static int times = 0;
40
41 // 声明定时器的回调函数
cb_timeout_periodic(int * arg)42 void cb_timeout_periodic(int *arg)
43 {
44 (int)arg;
45 times++;
46 }
47
48
timer_periodic(void)49 void timer_periodic(void)
50 {
51 // 用osTimerNew创建一个定时器
52 osTimerId_t periodic_tid = osTimerNew(cb_timeout_periodic, osTimerPeriodic, NULL, NULL);
53 if (periodic_tid == NULL) {
54 printf("[Timer Test] osTimerNew(periodic timer) failed.\r\n");
55 return;
56 } else {
57 printf("[Timer Test] osTimerNew(periodic timer) success, tid: %p.\r\n", periodic_tid);
58 }
59 // 一秒钟调用一次回调函数
60 osStatus_t status = osTimerStart(periodic_tid, 100);
61 if (status != osOK) {
62 printf("[Timer Test] osTimerStart(periodic timer) failed.\r\n");
63 return;
64 } else {
65 printf("[Timer Test] osTimerStart(periodic timer) success, wait a while and stop.\r\n");
66 }
67
68 // 等待三秒
69 while (times < TIMES_CNT) {
70 printf("[Timer Test] times:%d.\r\n", times);
71 osDelay(OS_DELAY);
72 }
73
74 // 停止定时器
75 status = osTimerStop(periodic_tid);
76 printf("[Timer Test] stop periodic timer, status :%d.\r\n", status);
77 // 删除定时器
78 status = osTimerDelete(periodic_tid);
79 printf("[Timer Test] kill periodic timer, status :%d.\r\n", status);
80 }
81
TimerTestTask(void)82 static void TimerTestTask(void)
83 {
84 osThreadAttr_t attr;
85 // 创建新线程
86
87 attr.name = "timer_periodic";
88 // 设置线程名
89 attr.attr_bits = 0U;
90 attr.cb_mem = NULL;
91 // 文档限定为NULL
92 attr.cb_size = 0U;
93 attr.stack_mem = NULL;
94 // 文档限定为NULL
95 attr.stack_size = ATTR.STACK_SIZE;
96 // 设置堆栈大小
97 attr.priority = osPriorityNormal;
98 // 设置线程优先级
99 // 创建失败提示:
100 if (osThreadNew((osThreadFunc_t)timer_periodic, NULL, &attr) == NULL) {
101 printf("[TimerTestTask] Failed to create timer_periodic!\n");
102 }
103 }
104
105 APP_FEATURE_INIT(TimerTestTask);