1 /*
2 * Copyright (C) 2022 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 #define MLOG_TAG "MtpService"
16 #include "mtp_service.h"
17 #include "media_log.h"
18 #include "mtp_global.h"
19 #include "mtp_media_library.h"
20
21 using namespace std;
22 namespace OHOS {
23 namespace Media {
MtpService(void)24 MtpService::MtpService(void) : monitorPtr_(nullptr), isMonitorRun_(false)
25 {
26 }
27
Init()28 void MtpService::Init()
29 {
30 if (monitorPtr_ == nullptr) {
31 monitorPtr_ = make_shared<MtpMonitor>();
32 }
33 }
34
StartService()35 void MtpService::StartService()
36 {
37 MEDIA_INFO_LOG("MtpService::StartService");
38 {
39 std::unique_lock lock(mutex_);
40 Init();
41 CHECK_AND_RETURN_LOG(!isMonitorRun_, "MtpService::StartService -- monitor is already running, return");
42 CHECK_AND_RETURN_LOG(monitorPtr_ != nullptr, "MtpService::StartService monitorPtr_ is nullptr");
43 MtpGlobal::ResetBlockStatus();
44 monitorPtr_->Start();
45 isMonitorRun_ = true;
46 }
47 }
48
StopService()49 void MtpService::StopService()
50 {
51 MEDIA_INFO_LOG("MtpService::StopService");
52 {
53 std::unique_lock lock(mutex_);
54 CHECK_AND_RETURN_LOG(isMonitorRun_, "MtpService::StopService -- monitor is not running, return");
55 CHECK_AND_RETURN_LOG(monitorPtr_ != nullptr, "MtpService::StopService monitorPtr_ is nullptr");
56 monitorPtr_->Stop();
57 isMonitorRun_ = false;
58 monitorPtr_.reset();
59 // after stop mtp service, clear the unordered_map memory of the MtpMediaLibrary
60 MtpMediaLibrary::GetInstance()->Clear();
61 }
62 }
63 } // namespace Media
64 } // namespace OHOS