deleted poolvector
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/*
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* \file PoolVector.h
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*
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* \brief This file contains the PoolVector class, the header only class to handle data pool vectors.
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*
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* \date 10/23/2012
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*
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* \author Bastian Baetz
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*/
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#ifndef POOLVECTOR_H_
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#define POOLVECTOR_H_
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#include <framework/datapool/DataSetIF.h>
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#include <framework/datapool/PoolEntry.h>
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#include <framework/datapool/PoolVariableIF.h>
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#include <framework/serialize/SerializeAdapter.h>
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#include <framework/serviceinterface/ServiceInterfaceStream.h>
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/**
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* \brief This is the access class for array-type data pool entries.
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*
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* \details To ensure safe usage of the data pool, operation is not done directly on the data pool
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* entries, but on local copies. This class provides simple type- and length-safe access
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* to vector-style data pool entries (i.e. entries with length > 1).
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* The class can be instantiated as read-write and read only.
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* It provides a commit-and-roll-back semantic, which means that no array entry in
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* the data pool is changed until the commit call is executed.
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* There are two template parameters:
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* \tparam T This template parameter specifies the data type of an array entry. Currently, all
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* plain data types are supported, but in principle any type is possible.
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* \tparam vector_size This template parameter specifies the vector size of this entry.
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* Using a template parameter for this is not perfect, but avoids dynamic memory allocation.
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* \ingroup data_pool
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*/
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template<typename T, uint16_t vector_size>
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class PoolVector: public PoolVariableIF {
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private:
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/**
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* \brief To access the correct data pool entry on read and commit calls, the data pool id
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* is stored.
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*/
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uint32_t dataPoolId;
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/**
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* \brief The valid information as it was stored in the data pool is copied to this attribute.
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*/
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uint8_t valid;
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/**
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* \brief The information whether the class is read-write or read-only is stored here.
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*/
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ReadWriteMode_t readWriteMode;
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protected:
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/**
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* \brief This is a call to read the array's values from the global data pool.
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* \details When executed, this operation tries to fetch the pool entry with matching
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* data pool id from the global data pool and copies all array values and the valid
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* information to its local attributes. In case of a failure (wrong type, size or
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* pool id not found), the variable is set to zero and invalid.
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* The operation does NOT provide any mutual exclusive protection by itself.
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*/
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ReturnValue_t read() {
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PoolEntry<T>* read_out = ::dataPool.getData<T>(this->dataPoolId,
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vector_size);
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if (read_out != NULL) {
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this->valid = read_out->valid;
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memcpy(this->value, read_out->address, read_out->getByteSize());
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return HasReturnvaluesIF::RETURN_OK;
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} else {
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memset(this->value, 0, vector_size * sizeof(T));
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sif::error << "PoolVector: read of DP Variable 0x" << std::hex
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<< dataPoolId << std::dec << " failed." << std::endl;
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this->valid = INVALID;
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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}
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/**
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* \brief The commit call copies the array values back to the data pool.
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* \details It checks type and size, as well as if the variable is writable. If so,
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* the value is copied and the valid flag is automatically set to "valid".
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* The operation does NOT provide any mutual exclusive protection by itself.
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*
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*/
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ReturnValue_t commit() {
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PoolEntry<T>* write_back = ::dataPool.getData<T>(this->dataPoolId,
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vector_size);
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if ((write_back != NULL) && (this->readWriteMode != VAR_READ)) {
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write_back->valid = valid;
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memcpy(write_back->address, this->value, write_back->getByteSize());
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return HasReturnvaluesIF::RETURN_OK;
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} else {
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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}
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public:
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/**
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* \brief This is the local copy of the data pool entry.
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* \detials The user can work on this attribute
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* just like he would on a local array of this type.
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*/
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T value[vector_size];
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/**
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* \brief In the constructor, the variable can register itself in a DataSet (if not NULL is
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* passed).
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* \details It DOES NOT fetch the current value from the data pool, but sets the value
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* attribute to default (0). The value is fetched within the read() operation.
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* \param set_id This is the id in the global data pool this instance of the access class
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* corresponds to.
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* \param dataSet The data set in which the variable shall register itself. If NULL,
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* the variable is not registered.
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* \param setWritable If this flag is set to true, changes in the value attribute can be
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* written back to the data pool, otherwise not.
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*/
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PoolVector(uint32_t set_id, DataSetIF* set,
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ReadWriteMode_t setReadWriteMode) :
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dataPoolId(set_id), valid(false), readWriteMode(setReadWriteMode) {
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memset(this->value, 0, vector_size * sizeof(T));
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if (set != NULL) {
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set->registerVariable(this);
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}
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}
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/**
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* Copy ctor to copy classes containing Pool Variables.
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*/
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// PoolVector(const PoolVector& rhs) {
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// PoolVector<T, vector_size> temp(rhs.dataPoolId, rhs.)
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// memcpy(value, rhs.value, sizeof(T)*vector_size);
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// }
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/**
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* \brief The classes destructor is empty.
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* \details If commit() was not called, the local value is
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* discarded and not written back to the data pool.
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*/
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~PoolVector() {
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}
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;
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/**
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* \brief The operation returns the number of array entries in this variable.
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*/
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uint8_t getSize() {
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return vector_size;
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}
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/**
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* \brief This operation returns the data pool id of the variable.
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*/
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uint32_t getDataPoolId() const {
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return dataPoolId;
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}
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/**
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* This operation sets the data pool id of the variable.
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* The method is necessary to set id's of data pool member variables with bad initialization.
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*/
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void setDataPoolId(uint32_t poolId) {
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dataPoolId = poolId;
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}
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/**
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* This method returns if the variable is write-only, read-write or read-only.
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*/
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ReadWriteMode_t getReadWriteMode() const {
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return readWriteMode;
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}
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;
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/**
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* \brief With this call, the valid information of the variable is returned.
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*/
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bool isValid() const {
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if (valid != INVALID)
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return true;
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else
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return false;
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}
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void setValid(uint8_t valid) {
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this->valid = valid;
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}
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uint8_t getValid() {
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return valid;
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}
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T &operator [](int i) {
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return value[i];
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}
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const T &operator [](int i) const {
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return value[i];
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}
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PoolVector<T, vector_size> &operator=(
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PoolVector<T, vector_size> newPoolVector) {
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for (uint16_t i = 0; i < vector_size; i++) {
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this->value[i] = newPoolVector.value[i];
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}
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return *this;
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}
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virtual ReturnValue_t serialize(uint8_t** buffer, size_t* size,
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const size_t max_size, bool bigEndian) const {
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uint16_t i;
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ReturnValue_t result;
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for (i = 0; i < vector_size; i++) {
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result = SerializeAdapter<T>::serialize(&(value[i]), buffer, size,
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max_size, bigEndian);
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if (result != HasReturnvaluesIF::RETURN_OK) {
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return result;
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}
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}
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return result;
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}
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virtual size_t getSerializedSize() const {
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return vector_size * SerializeAdapter<T>::getSerializedSize(value);
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}
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virtual ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
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bool bigEndian) {
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uint16_t i;
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ReturnValue_t result;
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for (i = 0; i < vector_size; i++) {
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result = SerializeAdapter<T>::deSerialize(&(value[i]), buffer, size,
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bigEndian);
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if (result != HasReturnvaluesIF::RETURN_OK) {
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return result;
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}
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}
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return result;
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}
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};
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#endif /* POOLVECTOR_H_ */
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