1 /*
2 * Copyright (c) 2021-2025 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 "camera_timer.h"
17 #include "camera_log.h"
18
19 namespace OHOS {
20 namespace CameraStandard {
GetInstance()21 CameraTimer *CameraTimer::GetInstance()
22 {
23 static CameraTimer instance;
24 return &instance;
25 }
26
CameraTimer()27 CameraTimer::CameraTimer()
28 : userCount_(0),
29 timer_(nullptr)
30 {
31 MEDIA_INFO_LOG("entered.");
32 };
33
~CameraTimer()34 CameraTimer::~CameraTimer()
35 {
36 MEDIA_INFO_LOG("entered.");
37 if (timer_) {
38 timer_->Shutdown();
39 timer_ = nullptr;
40 }
41 }
42
IncreaseUserCount()43 void CameraTimer::IncreaseUserCount()
44 {
45 MEDIA_INFO_LOG("entered, num of user: %d + 1", static_cast<int>(userCount_.load()));
46 if (timer_ == nullptr) {
47 timer_ = std::make_unique<OHOS::Utils::Timer>("CameraServiceTimer");
48 timer_->Setup();
49 MEDIA_INFO_LOG("create timer thread");
50 }
51 ++userCount_;
52 }
53
DecreaseUserCount()54 void CameraTimer::DecreaseUserCount()
55 {
56 MEDIA_INFO_LOG("entered, num of user: %u - 1", userCount_.load());
57 --userCount_;
58 if (userCount_.load() == 0 && timer_ != nullptr) {
59 MEDIA_INFO_LOG("delete timer thread");
60 }
61 }
62
Register(const TimerCallback & callback,uint32_t interval,bool once)63 uint32_t CameraTimer::Register(const TimerCallback& callback, uint32_t interval, bool once)
64 {
65 if (timer_ == nullptr) {
66 MEDIA_ERR_LOG("timer is nullptr");
67 return 0;
68 }
69
70 uint32_t timerId = timer_->Register(callback, interval, once);
71 MEDIA_DEBUG_LOG("timerId: %{public}u", timerId);
72 return timerId;
73 }
74
Unregister(uint32_t timerId)75 void CameraTimer::Unregister(uint32_t timerId)
76 {
77 MEDIA_DEBUG_LOG("timerId: %{public}d", timerId);
78 if (timer_) {
79 MEDIA_DEBUG_LOG("timerId: %{public}d", timerId);
80 timer_->Unregister(timerId);
81 return;
82 }
83 }
84 } // namespace CameraStandard
85 } // namespace OHOS