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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_SENSOR_REGISTRATION_INFO_H
     18 #define ANDROID_SENSOR_REGISTRATION_INFO_H
     19 
     20 #include "SensorServiceUtils.h"
     21 #include <utils/Thread.h>
     22 #include <iomanip>
     23 #include <sstream>
     24 
     25 namespace android {
     26 
     27 class SensorService;
     28 
     29 class SensorService::SensorRegistrationInfo : public SensorServiceUtil::Dumpable {
     30 public:
     31     SensorRegistrationInfo() : mPackageName() {
     32         mSensorHandle = mSamplingRateUs = mMaxReportLatencyUs = INT32_MIN;
     33         mHour = mMin = mSec = INT8_MIN;
     34         mActivated = false;
     35     }
     36 
     37     SensorRegistrationInfo(int32_t handle, const String8 &packageName,
     38                            int32_t samplingRateNs, int32_t maxReportLatencyNs, bool activate) {
     39         mSensorHandle = handle;
     40         mPackageName = packageName;
     41 
     42         mSamplingRateUs = static_cast<int32_t>(samplingRateNs/1000);
     43         mMaxReportLatencyUs = static_cast<int32_t>(maxReportLatencyNs/1000);
     44         mActivated = activate;
     45 
     46         IPCThreadState *thread = IPCThreadState::self();
     47         mPid = (thread != nullptr) ? thread->getCallingPid() : -1;
     48         mUid = (thread != nullptr) ? thread->getCallingUid() : -1;
     49 
     50         time_t rawtime = time(NULL);
     51         struct tm * timeinfo = localtime(&rawtime);
     52         mHour = static_cast<int8_t>(timeinfo->tm_hour);
     53         mMin = static_cast<int8_t>(timeinfo->tm_min);
     54         mSec = static_cast<int8_t>(timeinfo->tm_sec);
     55     }
     56 
     57     static bool isSentinel(const SensorRegistrationInfo& info) {
     58        return (info.mHour == INT8_MIN &&
     59                info.mMin == INT8_MIN &&
     60                info.mSec == INT8_MIN);
     61     }
     62 
     63     // Dumpable interface
     64     virtual std::string dump() const override {
     65         std::ostringstream ss;
     66         ss << std::setfill('0') << std::setw(2) << static_cast<int>(mHour) << ":"
     67            << std::setw(2) << static_cast<int>(mMin) << ":"
     68            << std::setw(2) << static_cast<int>(mSec)
     69            << (mActivated ? " +" : " -")
     70            << " 0x" << std::hex << std::setw(8) << mSensorHandle << std::dec
     71            << std::setfill(' ') << " pid=" << std::setw(5) << mPid
     72            << " uid=" << std::setw(5) << mUid << " package=" << mPackageName;
     73         if (mActivated) {
     74            ss  << " samplingPeriod=" << mSamplingRateUs << "us"
     75                << " batchingPeriod=" << mMaxReportLatencyUs << "us";
     76         };
     77         return ss.str();
     78     }
     79 
     80 private:
     81     int32_t mSensorHandle;
     82     String8 mPackageName;
     83     pid_t   mPid;
     84     uid_t   mUid;
     85     int32_t mSamplingRateUs;
     86     int32_t mMaxReportLatencyUs;
     87     bool mActivated;
     88     int8_t mHour, mMin, mSec;
     89 
     90 };
     91 
     92 } // namespace android;
     93 
     94 #endif // ANDROID_SENSOR_REGISTRATION_INFO_H
     95 
     96 
     97