libs/sensor/ISensorServer.cpp - android_frameworks_native - Gitiles

 /*
  * Copyright (C) 2010 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include <sensor/ISensorServer.h>

 #include <stdint.h>
 #include <sys/types.h>

 #include <cutils/native_handle.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 #include <utils/Vector.h>
 #include <utils/Timers.h>

 #include <binder/Parcel.h>
 #include <binder/IInterface.h>
 #include <binder/IResultReceiver.h>

 #include <sensor/Sensor.h>
 #include <sensor/ISensorEventConnection.h>

 namespace android {
 // ----------------------------------------------------------------------------

 enum {
     GET_SENSOR_LIST = IBinder::FIRST_CALL_TRANSACTION,
     CREATE_SENSOR_EVENT_CONNECTION,
     ENABLE_DATA_INJECTION,
     GET_DYNAMIC_SENSOR_LIST,
     CREATE_SENSOR_DIRECT_CONNECTION,
     SET_OPERATION_PARAMETER,
 };

 class BpSensorServer : public BpInterface<ISensorServer>
 {
 public:
     explicit BpSensorServer(const sp<IBinder>& impl)
         : BpInterface<ISensorServer>(impl)
     {
     }

     virtual ~BpSensorServer();

     virtual Vector<Sensor> getSensorList(const String16& opPackageName)
     {
         Parcel data, reply;
         data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
         data.writeString16(opPackageName);
         remote()->transact(GET_SENSOR_LIST, data, &reply);
         Sensor s;
         Vector<Sensor> v;
         uint32_t n = reply.readUint32();
         v.setCapacity(n);
         while (n) {
             n--;
             reply.read(s);
             v.add(s);
         }
         return v;
     }

     virtual Vector<Sensor> getDynamicSensorList(const String16& opPackageName)
     {
         Parcel data, reply;
         data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
         data.writeString16(opPackageName);
         remote()->transact(GET_DYNAMIC_SENSOR_LIST, data, &reply);
         Sensor s;
         Vector<Sensor> v;
         uint32_t n = reply.readUint32();
         v.setCapacity(n);
         while (n) {
             n--;
             reply.read(s);
             v.add(s);
         }
         return v;
     }

     virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName,
              int mode, const String16& opPackageName)
     {
         Parcel data, reply;
         data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
         data.writeString8(packageName);
         data.writeInt32(mode);
         data.writeString16(opPackageName);
         remote()->transact(CREATE_SENSOR_EVENT_CONNECTION, data, &reply);
         return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
     }

     virtual int isDataInjectionEnabled() {
         Parcel data, reply;
         data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
         remote()->transact(ENABLE_DATA_INJECTION, data, &reply);
         return reply.readInt32();
     }

     virtual sp<ISensorEventConnection> createSensorDirectConnection(const String16& opPackageName,
             uint32_t size, int32_t type, int32_t format, const native_handle_t *resource) {
         Parcel data, reply;
         data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
         data.writeString16(opPackageName);
         data.writeUint32(size);
         data.writeInt32(type);
         data.writeInt32(format);
         data.writeNativeHandle(resource);
         remote()->transact(CREATE_SENSOR_DIRECT_CONNECTION, data, &reply);
         return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
     }

     virtual int setOperationParameter(int32_t handle, int32_t type,
                                       const Vector<float> &floats,
                                       const Vector<int32_t> &ints) {
         Parcel data, reply;
         data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
         data.writeInt32(handle);
         data.writeInt32(type);
         data.writeUint32(static_cast<uint32_t>(floats.size()));
         for (auto i : floats) {
             data.writeFloat(i);
         }
         data.writeUint32(static_cast<uint32_t>(ints.size()));
         for (auto i : ints) {
             data.writeInt32(i);
         }
         remote()->transact(SET_OPERATION_PARAMETER, data, &reply);
         return reply.readInt32();
     }
 };

 // Out-of-line virtual method definition to trigger vtable emission in this
 // translation unit (see clang warning -Wweak-vtables)
 BpSensorServer::~BpSensorServer() {}

 IMPLEMENT_META_INTERFACE(SensorServer, "android.gui.SensorServer");

 // ----------------------------------------------------------------------

 status_t BnSensorServer::onTransact(
     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
 {
     switch(code) {
         case GET_SENSOR_LIST: {
             CHECK_INTERFACE(ISensorServer, data, reply);
             const String16& opPackageName = data.readString16();
             Vector<Sensor> v(getSensorList(opPackageName));
             size_t n = v.size();
             reply->writeUint32(static_cast<uint32_t>(n));
             for (size_t i = 0; i < n; i++) {
                 reply->write(v[i]);
             }
             return NO_ERROR;
         }
         case CREATE_SENSOR_EVENT_CONNECTION: {
             CHECK_INTERFACE(ISensorServer, data, reply);
             String8 packageName = data.readString8();
             int32_t mode = data.readInt32();
             const String16& opPackageName = data.readString16();
             sp<ISensorEventConnection> connection(createSensorEventConnection(packageName, mode,
                     opPackageName));
             reply->writeStrongBinder(IInterface::asBinder(connection));
             return NO_ERROR;
         }
         case ENABLE_DATA_INJECTION: {
             CHECK_INTERFACE(ISensorServer, data, reply);
             int32_t ret = isDataInjectionEnabled();
             reply->writeInt32(static_cast<int32_t>(ret));
             return NO_ERROR;
         }
         case GET_DYNAMIC_SENSOR_LIST: {
             CHECK_INTERFACE(ISensorServer, data, reply);
             const String16& opPackageName = data.readString16();
             Vector<Sensor> v(getDynamicSensorList(opPackageName));
             size_t n = v.size();
             reply->writeUint32(static_cast<uint32_t>(n));
             for (size_t i = 0; i < n; i++) {
                 reply->write(v[i]);
             }
             return NO_ERROR;
         }
         case CREATE_SENSOR_DIRECT_CONNECTION: {
             CHECK_INTERFACE(ISensorServer, data, reply);
             const String16& opPackageName = data.readString16();
             uint32_t size = data.readUint32();
             int32_t type = data.readInt32();
             int32_t format = data.readInt32();
             native_handle_t *resource = data.readNativeHandle();
             // Avoid a crash in native_handle_close if resource is nullptr
             if (resource == nullptr) {
                 return BAD_VALUE;
             }
             sp<ISensorEventConnection> ch =
                     createSensorDirectConnection(opPackageName, size, type, format, resource);
             native_handle_close(resource);
             native_handle_delete(resource);
             reply->writeStrongBinder(IInterface::asBinder(ch));
             return NO_ERROR;
         }
         case SET_OPERATION_PARAMETER: {
             CHECK_INTERFACE(ISensorServer, data, reply);
             int32_t handle;
             int32_t type;
             Vector<float> floats;
             Vector<int32_t> ints;

             handle = data.readInt32();
             type = data.readInt32();
             floats.resize(data.readUint32());
             for (auto &i : floats) {
                 i = data.readFloat();
             }
             ints.resize(data.readUint32());
             for (auto &i : ints) {
                 i = data.readInt32();
             }

             int32_t ret = setOperationParameter(handle, type, floats, ints);
             reply->writeInt32(ret);
             return NO_ERROR;
         }
         case SHELL_COMMAND_TRANSACTION: {
             int in = data.readFileDescriptor();
             int out = data.readFileDescriptor();
             int err = data.readFileDescriptor();
             int argc = data.readInt32();
             Vector<String16> args;
             for (int i = 0; i < argc && data.dataAvail() > 0; i++) {
                args.add(data.readString16());
             }
             sp<IBinder> unusedCallback;
             sp<IResultReceiver> resultReceiver;
             status_t status;
             if ((status = data.readNullableStrongBinder(&unusedCallback)) != NO_ERROR) {
                 return status;
             }
             if ((status = data.readNullableStrongBinder(&resultReceiver)) != NO_ERROR) {
                 return status;
             }
             status = shellCommand(in, out, err, args);
             if (resultReceiver != nullptr) {
                 resultReceiver->send(status);
             }
             return NO_ERROR;
         }
     }
     return BBinder::onTransact(code, data, reply, flags);
 }

 // ----------------------------------------------------------------------------
 }; // namespace android
	/*
	* Copyright (C) 2010 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include <sensor/ISensorServer.h>

	#include <stdint.h>
	#include <sys/types.h>

	#include <cutils/native_handle.h>
	#include <utils/Errors.h>
	#include <utils/RefBase.h>
	#include <utils/Vector.h>
	#include <utils/Timers.h>

	#include <binder/Parcel.h>
	#include <binder/IInterface.h>
	#include <binder/IResultReceiver.h>

	#include <sensor/Sensor.h>
	#include <sensor/ISensorEventConnection.h>

	namespace android {
	// ----------------------------------------------------------------------------

	enum {
	GET_SENSOR_LIST = IBinder::FIRST_CALL_TRANSACTION,
	CREATE_SENSOR_EVENT_CONNECTION,
	ENABLE_DATA_INJECTION,
	GET_DYNAMIC_SENSOR_LIST,
	CREATE_SENSOR_DIRECT_CONNECTION,
	SET_OPERATION_PARAMETER,
	};

	class BpSensorServer : public BpInterface<ISensorServer>
	{
	public:
	explicit BpSensorServer(const sp<IBinder>& impl)
	: BpInterface<ISensorServer>(impl)
	{
	}

	virtual ~BpSensorServer();

	virtual Vector<Sensor> getSensorList(const String16& opPackageName)
	{
	Parcel data, reply;
	data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
	data.writeString16(opPackageName);
	remote()->transact(GET_SENSOR_LIST, data, &reply);
	Sensor s;
	Vector<Sensor> v;
	uint32_t n = reply.readUint32();
	v.setCapacity(n);
	while (n) {
	n--;
	reply.read(s);
	v.add(s);
	}
	return v;
	}

	virtual Vector<Sensor> getDynamicSensorList(const String16& opPackageName)
	{
	Parcel data, reply;
	data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
	data.writeString16(opPackageName);
	remote()->transact(GET_DYNAMIC_SENSOR_LIST, data, &reply);
	Sensor s;
	Vector<Sensor> v;
	uint32_t n = reply.readUint32();
	v.setCapacity(n);
	while (n) {
	n--;
	reply.read(s);
	v.add(s);
	}
	return v;
	}

	virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName,
	int mode, const String16& opPackageName)
	{
	Parcel data, reply;
	data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
	data.writeString8(packageName);
	data.writeInt32(mode);
	data.writeString16(opPackageName);
	remote()->transact(CREATE_SENSOR_EVENT_CONNECTION, data, &reply);
	return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
	}

	virtual int isDataInjectionEnabled() {
	Parcel data, reply;
	data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
	remote()->transact(ENABLE_DATA_INJECTION, data, &reply);
	return reply.readInt32();
	}

	virtual sp<ISensorEventConnection> createSensorDirectConnection(const String16& opPackageName,
	uint32_t size, int32_t type, int32_t format, const native_handle_t *resource) {
	Parcel data, reply;
	data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
	data.writeString16(opPackageName);
	data.writeUint32(size);
	data.writeInt32(type);
	data.writeInt32(format);
	data.writeNativeHandle(resource);
	remote()->transact(CREATE_SENSOR_DIRECT_CONNECTION, data, &reply);
	return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
	}

	virtual int setOperationParameter(int32_t handle, int32_t type,
	const Vector<float> &floats,
	const Vector<int32_t> &ints) {
	Parcel data, reply;
	data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
	data.writeInt32(handle);
	data.writeInt32(type);
	data.writeUint32(static_cast<uint32_t>(floats.size()));
	for (auto i : floats) {
	data.writeFloat(i);
	}
	data.writeUint32(static_cast<uint32_t>(ints.size()));
	for (auto i : ints) {
	data.writeInt32(i);
	}
	remote()->transact(SET_OPERATION_PARAMETER, data, &reply);
	return reply.readInt32();
	}
	};

	// Out-of-line virtual method definition to trigger vtable emission in this
	// translation unit (see clang warning -Wweak-vtables)
	BpSensorServer::~BpSensorServer() {}

	IMPLEMENT_META_INTERFACE(SensorServer, "android.gui.SensorServer");

	// ----------------------------------------------------------------------

	status_t BnSensorServer::onTransact(
	uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
	{
	switch(code) {
	case GET_SENSOR_LIST: {
	CHECK_INTERFACE(ISensorServer, data, reply);
	const String16& opPackageName = data.readString16();
	Vector<Sensor> v(getSensorList(opPackageName));
	size_t n = v.size();
	reply->writeUint32(static_cast<uint32_t>(n));
	for (size_t i = 0; i < n; i++) {
	reply->write(v[i]);
	}
	return NO_ERROR;
	}
	case CREATE_SENSOR_EVENT_CONNECTION: {
	CHECK_INTERFACE(ISensorServer, data, reply);
	String8 packageName = data.readString8();
	int32_t mode = data.readInt32();
	const String16& opPackageName = data.readString16();
	sp<ISensorEventConnection> connection(createSensorEventConnection(packageName, mode,
	opPackageName));
	reply->writeStrongBinder(IInterface::asBinder(connection));
	return NO_ERROR;
	}
	case ENABLE_DATA_INJECTION: {
	CHECK_INTERFACE(ISensorServer, data, reply);
	int32_t ret = isDataInjectionEnabled();
	reply->writeInt32(static_cast<int32_t>(ret));
	return NO_ERROR;
	}
	case GET_DYNAMIC_SENSOR_LIST: {
	CHECK_INTERFACE(ISensorServer, data, reply);
	const String16& opPackageName = data.readString16();
	Vector<Sensor> v(getDynamicSensorList(opPackageName));
	size_t n = v.size();
	reply->writeUint32(static_cast<uint32_t>(n));
	for (size_t i = 0; i < n; i++) {
	reply->write(v[i]);
	}
	return NO_ERROR;
	}
	case CREATE_SENSOR_DIRECT_CONNECTION: {
	CHECK_INTERFACE(ISensorServer, data, reply);
	const String16& opPackageName = data.readString16();
	uint32_t size = data.readUint32();
	int32_t type = data.readInt32();
	int32_t format = data.readInt32();
	native_handle_t *resource = data.readNativeHandle();
	// Avoid a crash in native_handle_close if resource is nullptr
	if (resource == nullptr) {
	return BAD_VALUE;
	}
	sp<ISensorEventConnection> ch =
	createSensorDirectConnection(opPackageName, size, type, format, resource);
	native_handle_close(resource);
	native_handle_delete(resource);
	reply->writeStrongBinder(IInterface::asBinder(ch));
	return NO_ERROR;
	}
	case SET_OPERATION_PARAMETER: {
	CHECK_INTERFACE(ISensorServer, data, reply);
	int32_t handle;
	int32_t type;
	Vector<float> floats;
	Vector<int32_t> ints;

	handle = data.readInt32();
	type = data.readInt32();
	floats.resize(data.readUint32());
	for (auto &i : floats) {
	i = data.readFloat();
	}
	ints.resize(data.readUint32());
	for (auto &i : ints) {
	i = data.readInt32();
	}

	int32_t ret = setOperationParameter(handle, type, floats, ints);
	reply->writeInt32(ret);
	return NO_ERROR;
	}
	case SHELL_COMMAND_TRANSACTION: {
	int in = data.readFileDescriptor();
	int out = data.readFileDescriptor();
	int err = data.readFileDescriptor();
	int argc = data.readInt32();
	Vector<String16> args;
	for (int i = 0; i < argc && data.dataAvail() > 0; i++) {
	args.add(data.readString16());
	}
	sp<IBinder> unusedCallback;
	sp<IResultReceiver> resultReceiver;
	status_t status;
	if ((status = data.readNullableStrongBinder(&unusedCallback)) != NO_ERROR) {
	return status;
	}
	if ((status = data.readNullableStrongBinder(&resultReceiver)) != NO_ERROR) {
	return status;
	}
	status = shellCommand(in, out, err, args);
	if (resultReceiver != nullptr) {
	resultReceiver->send(status);
	}
	return NO_ERROR;
	}
	}
	return BBinder::onTransact(code, data, reply, flags);
	}

	// ----------------------------------------------------------------------------
	}; // namespace android