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 "sensor_data_channel.h"
17
18 #include "errors.h"
19 #include "sensor_file_descriptor_listener.h"
20 #include "sensors_errors.h"
21
22 namespace OHOS {
23 namespace Sensors {
24 using namespace OHOS::HiviewDFX;
25 using namespace OHOS::AppExecFwk;
26 std::shared_ptr<SensorEventHandler> SensorDataChannel::eventHandler_;
27
28 namespace {
29 constexpr HiLogLabel LABEL = { LOG_CORE, SENSOR_LOG_DOMAIN, "SensorDataChannel" };
30 } // namespace
31
CreateSensorDataChannel(DataChannelCB callBack,void * data)32 int32_t SensorDataChannel::CreateSensorDataChannel(DataChannelCB callBack, void *data)
33 {
34 CHKPR(callBack, SENSOR_NATIVE_REGSITER_CB_ERR);
35 dataCB_ = callBack;
36 privateData_ = data;
37 return InnerSensorDataChannel();
38 }
39
RestoreSensorDataChannel()40 int32_t SensorDataChannel::RestoreSensorDataChannel()
41 {
42 CHKPR(dataCB_, SENSOR_NATIVE_REGSITER_CB_ERR);
43 if (GetReceiveDataFd() != -1) {
44 SEN_HILOGE("fd not close");
45 return SENSOR_CHANNEL_RESTORE_FD_ERR;
46 }
47 return InnerSensorDataChannel();
48 }
49
InnerSensorDataChannel()50 int32_t SensorDataChannel::InnerSensorDataChannel()
51 {
52 std::lock_guard<std::mutex> eventRunnerLock(eventRunnerMutex_);
53 // create basic data channel
54 int32_t ret = CreateSensorBasicChannel();
55 if (ret != ERR_OK) {
56 SEN_HILOGE("create basic channel failed, ret:%{public}d", ret);
57 return ret;
58 }
59 auto listener = std::make_shared<SensorFileDescriptorListener>();
60 listener->SetChannel(this);
61 auto myRunner = AppExecFwk::EventRunner::Create(true);
62 CHKPR(myRunner, ERROR);
63 eventHandler_ = std::make_shared<SensorEventHandler>(myRunner);
64 CHKPR(eventHandler_, ERROR);
65 int32_t receiveFd = GetReceiveDataFd();
66 auto inResult = eventHandler_->AddFileDescriptorListener(receiveFd,
67 AppExecFwk::FILE_DESCRIPTOR_INPUT_EVENT, listener);
68 if (inResult != 0) {
69 SEN_HILOGE("AddFileDescriptorListener fail");
70 return ERROR;
71 }
72 return ERR_OK;
73 }
74
DestroySensorDataChannel()75 int32_t SensorDataChannel::DestroySensorDataChannel()
76 {
77 std::lock_guard<std::mutex> eventRunnerLock(eventRunnerMutex_);
78 CHKPL(eventHandler_);
79 eventHandler_ = nullptr;
80 // destroy sensor basic channelx
81 return DestroySensorBasicChannel();
82 }
83
~SensorDataChannel()84 SensorDataChannel::~SensorDataChannel()
85 {
86 DestroySensorDataChannel();
87 }
88 } // namespace Sensors
89 } // namespace OHOS
90