102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "Sensors"
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <utils/RefBase.h>
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#include <utils/Singleton.h>
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#include <binder/IServiceManager.h>
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#include <gui/ISensorServer.h>
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#include <gui/ISensorEventConnection.h>
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#include <gui/Sensor.h>
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#include <gui/SensorManager.h>
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#include <gui/SensorEventQueue.h>
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// ----------------------------------------------------------------------------
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namespace android {
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// ----------------------------------------------------------------------------
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ANDROID_SINGLETON_STATIC_INSTANCE(SensorManager)
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SensorManager::SensorManager()
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: mSensorList(0)
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{
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const String16 name("sensorservice");
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while (getService(name, &mSensorServer) != NO_ERROR) {
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usleep(250000);
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}
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mSensors = mSensorServer->getSensorList();
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size_t count = mSensors.size();
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mSensorList = (Sensor const**)malloc(count * sizeof(Sensor*));
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for (size_t i=0 ; i<count ; i++) {
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mSensorList[i] = mSensors.array() + i;
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}
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}
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SensorManager::~SensorManager()
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{
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free(mSensorList);
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}
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ssize_t SensorManager::getSensorList(Sensor const* const** list) const
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{
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*list = mSensorList;
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return mSensors.size();
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}
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Sensor const* SensorManager::getDefaultSensor(int type)
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{
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// For now we just return the first sensor of that type we find.
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// in the future it will make sense to let the SensorService make
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// that decision.
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for (size_t i=0 ; i<mSensors.size() ; i++) {
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if (mSensorList[i]->getType() == type)
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return mSensorList[i];
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}
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return NULL;
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}
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sp<SensorEventQueue> SensorManager::createEventQueue()
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{
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sp<SensorEventQueue> queue;
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if (mSensorServer == NULL) {
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LOGE("createEventQueue: mSensorSever is NULL");
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return queue;
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}
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sp<ISensorEventConnection> connection =
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mSensorServer->createSensorEventConnection();
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if (connection == NULL) {
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LOGE("createEventQueue: connection is NULL");
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return queue;
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}
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queue = new SensorEventQueue(connection);
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return queue;
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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