1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
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 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "timer_thread.h"
17
18 #include "q_auto_lock_guard.h"
19
20 using namespace OHOS::ACELite;
21
22 static TimerThread *g_timerInstance = nullptr;
23
InitTimerTask()24 int InitTimerTask()
25 {
26 // default
27 return 0;
28 }
29
StartTimerTask(bool isPeriodic,const unsigned int delay,void * userCallback,void * userData,timerHandle_t * timerHandle)30 int StartTimerTask(bool isPeriodic,
31 const unsigned int delay,
32 void *userCallback,
33 void *userData,
34 timerHandle_t *timerHandle)
35 {
36 if (g_timerInstance == nullptr) {
37 return -1;
38 }
39
40 return g_timerInstance->StartTimerTaskInner(isPeriodic, delay, userCallback, userData, timerHandle);
41 }
42
StopTimerTask(const timerHandle_t timerHandle)43 int StopTimerTask(const timerHandle_t timerHandle)
44 {
45 if (g_timerInstance == nullptr) {
46 return -1;
47 }
48
49 return g_timerInstance->StopTimerTaskInner(timerHandle);
50 }
51
52 namespace OHOS {
53 namespace ACELite {
54 const static uint32_t TIMER_STEP = 10;
55 typedef void (*UserCallbackFunc)(void *data);
56
run()57 void TimerThread::run()
58 {
59 g_timerInstance = this;
60 taskQuitFlag = false;
61 while (!taskQuitFlag) {
62 Traverse();
63 QThread::msleep(TIMER_STEP); // calculate once every 10ms
64 }
65 }
66
Quit()67 void TimerThread::Quit()
68 {
69 taskQuitFlag = true;
70 }
71
Traverse()72 void TimerThread::Traverse()
73 {
74 QAutoLockGuard lockGuard(mutexlock_);
75 QMutableListIterator<const TimerInfo *> listIterator(timerList_);
76 while (listIterator.hasNext()) {
77 TimerInfo *info = const_cast<TimerInfo *>(listIterator.next());
78 if (info->remain > 0) {
79 info->remain -= TIMER_STEP;
80 } else {
81 UserCallbackFunc func = reinterpret_cast<UserCallbackFunc>(info->userCallback);
82 func(info->userData);
83 if (info->isPeriodic) {
84 info->remain = info->delay;
85 } else {
86 listIterator.remove();
87 delete info;
88 info = nullptr;
89 }
90 }
91 }
92 }
93
StartTimerTaskInner(bool isPeriodic,const unsigned int delay,void * userCallback,void * userData,timerHandle_t * timerHandle)94 int TimerThread::StartTimerTaskInner(bool isPeriodic,
95 const unsigned int delay,
96 void *userCallback,
97 void *userData,
98 timerHandle_t *timerHandle)
99 {
100 auto info = new TimerInfo();
101 if (info == nullptr) {
102 return -1;
103 }
104 info->delay = delay;
105 info->remain = delay;
106 info->isPeriodic = isPeriodic;
107 info->userCallback = userCallback;
108 info->userData = userData;
109 *timerHandle = info;
110 info->timerHandle = reinterpret_cast<timerHandle_t *>(info);
111 QAutoLockGuard lockGuard(mutexlock_);
112 timerList_.append(info);
113 return 0;
114 }
115
StopTimerTaskInner(const timerHandle_t timerHandle)116 int TimerThread::StopTimerTaskInner(const timerHandle_t timerHandle)
117 {
118 QAutoLockGuard lockGuard(mutexlock_);
119 QMutableListIterator<const TimerInfo *> listIterator(timerList_);
120 while (listIterator.hasNext()) {
121 const TimerInfo *info = const_cast<TimerInfo *>(listIterator.next());
122 if (info == nullptr) {
123 continue;
124 }
125 if (info->timerHandle == timerHandle) {
126 listIterator.remove();
127 delete info;
128 info = nullptr;
129 }
130 }
131 return 0;
132 }
133 } // namespace ACELite
134 } // namespace OHOS
135