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/***************************************************************************** |
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* |
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* $Id$ |
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* |
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* copyright (C) 2012 Richard Hacker (lerichi at gmx dot net) |
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* |
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* This file is part of the pdserv library. |
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* |
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* The pdserv library is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published |
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* by the Free Software Foundation, either version 3 of the License, or (at |
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* your option) any later version. |
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* |
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* The pdserv library is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
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* License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with the pdserv library. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*****************************************************************************/ |
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#ifndef DATATYPE_H |
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#define DATATYPE_H |
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#include "Debug.h" |
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#include <list> |
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#include <stdint.h> |
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#include <vector> |
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#include <string> |
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#include <ostream> |
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namespace PdServ { |
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class DataType { |
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public: |
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struct DimType: public std::vector<size_t> { |
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DimType(size_t ndims, const size_t *dim); |
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const size_t nelem; |
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bool isScalar() const { |
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return nelem == 1; |
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} |
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bool isVector() const { |
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return size() == 1; |
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} |
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bool isMultiDim() const { |
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return size() > 1; |
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} |
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}; |
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struct Field { |
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Field(const std::string& name, const DataType& type, |
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size_t offset, size_t ndims, const size_t *dims); |
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const std::string name; |
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const DataType& type; |
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const size_t offset; |
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const DimType dim; |
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}; |
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enum Primary { |
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compound_T = 0, |
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boolean_T, |
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uint8_T, int8_T, |
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uint16_T, int16_T, |
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uint32_T, int32_T, |
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uint64_T, int64_T, |
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double_T, single_T |
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}; |
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DataType( const std::string& name, size_t size); |
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virtual ~DataType(); |
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const std::string name; |
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const size_t size; |
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virtual Primary primary() const; |
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bool isPrimary() const; |
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static const size_t maxWidth = 8; /**< Maximum supported data type |
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size in bytes */ |
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virtual size_t align() const; |
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void addField(const std::string& name, |
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const DataType& type, |
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size_t offset, |
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size_t ndims = 1, |
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const size_t* dims = 0); |
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struct FieldList: public std::list<const Field*> { |
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friend std::ostream& operator<<(std::ostream& os, |
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const FieldList& fieldList); |
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}; |
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const FieldList& getFieldList() const; |
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bool operator==(const DataType& other) const; |
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void (* const setValue)(char *&, double); |
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static const DataType& boolean; |
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static const DataType& uint8; |
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static const DataType& int8; |
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static const DataType& uint16; |
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static const DataType& int16; |
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static const DataType& uint32; |
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static const DataType& int32; |
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static const DataType& uint64; |
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static const DataType& int64; |
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static const DataType& float64; |
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static const DataType& float32; |
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virtual void print(std::ostream& os, const char *data, |
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const char* start, const char* end) const; |
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struct Printer { |
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Printer(const DataType* dt, const char *addr, size_t nelem): |
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type(dt), addr(addr), size(nelem * dt->size) { |
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} |
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friend std::ostream& operator<<(std::ostream& os, |
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const Printer& obj) { |
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obj.type->print(os, obj.addr, obj.addr, |
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obj.addr + obj.size); |
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return os; |
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} |
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const DataType* const type; |
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const char * const addr; |
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const size_t size; |
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}; |
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Printer operator()(const void *addr, size_t n = 1) const { |
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return Printer(this, reinterpret_cast<const char*>(addr), n); |
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} |
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protected: |
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DataType(const DataType& other); |
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explicit DataType(size_t size, void (*)(char *&dst, double src)); |
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private: |
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FieldList fieldList; |
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}; |
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} |
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#endif //DATATYPE_H |
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