Directory: | ./ |
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File: | pdserv/src/DataType.h |
Date: | 2024-12-15 04:08:34 |
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1 | /***************************************************************************** | ||
2 | * | ||
3 | * $Id$ | ||
4 | * | ||
5 | * copyright (C) 2012 Richard Hacker (lerichi at gmx dot net) | ||
6 | * | ||
7 | * This file is part of the pdserv library. | ||
8 | * | ||
9 | * The pdserv library is free software: you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU Lesser General Public License as published | ||
11 | * by the Free Software Foundation, either version 3 of the License, or (at | ||
12 | * your option) any later version. | ||
13 | * | ||
14 | * The pdserv library is distributed in the hope that it will be useful, but | ||
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | ||
16 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public | ||
17 | * License for more details. | ||
18 | * | ||
19 | * You should have received a copy of the GNU Lesser General Public License | ||
20 | * along with the pdserv library. If not, see <http://www.gnu.org/licenses/>. | ||
21 | * | ||
22 | *****************************************************************************/ | ||
23 | |||
24 | #ifndef DATATYPE_H | ||
25 | #define DATATYPE_H | ||
26 | |||
27 | #include "Debug.h" | ||
28 | |||
29 | #include <list> | ||
30 | #include <stdint.h> | ||
31 | #include <vector> | ||
32 | #include <string> | ||
33 | #include <ostream> | ||
34 | |||
35 | namespace PdServ { | ||
36 | |||
37 | class DataType { | ||
38 | public: | ||
39 | 15744 | struct DimType: public std::vector<size_t> { | |
40 | DimType(size_t ndims, const size_t *dim); | ||
41 | const size_t nelem; | ||
42 | |||
43 | 4852 | bool isScalar() const { | |
44 | 4852 | return nelem == 1; | |
45 | } | ||
46 | |||
47 | 66 | bool isVector() const { | |
48 | 66 | return size() == 1; | |
49 | } | ||
50 | |||
51 | bool isMultiDim() const { | ||
52 | return size() > 1; | ||
53 | } | ||
54 | |||
55 | }; | ||
56 | |||
57 | ✗ | struct Field { | |
58 | Field(const std::string& name, const DataType& type, | ||
59 | size_t offset, size_t ndims, const size_t *dims); | ||
60 | const std::string name; | ||
61 | const DataType& type; | ||
62 | const size_t offset; | ||
63 | const DimType dim; | ||
64 | }; | ||
65 | |||
66 | enum Primary { | ||
67 | compound_T = 0, | ||
68 | boolean_T, | ||
69 | uint8_T, int8_T, | ||
70 | uint16_T, int16_T, | ||
71 | uint32_T, int32_T, | ||
72 | uint64_T, int64_T, | ||
73 | double_T, single_T | ||
74 | }; | ||
75 | |||
76 | DataType( const std::string& name, size_t size); | ||
77 | virtual ~DataType(); | ||
78 | |||
79 | const std::string name; | ||
80 | const size_t size; | ||
81 | virtual Primary primary() const; | ||
82 | bool isPrimary() const; | ||
83 | static const size_t maxWidth = 8; /**< Maximum supported data type | ||
84 | size in bytes */ | ||
85 | |||
86 | virtual size_t align() const; | ||
87 | |||
88 | void addField(const std::string& name, | ||
89 | const DataType& type, | ||
90 | size_t offset, | ||
91 | size_t ndims = 1, | ||
92 | const size_t* dims = 0); | ||
93 | |||
94 | 66 | struct FieldList: public std::list<const Field*> { | |
95 | friend std::ostream& operator<<(std::ostream& os, | ||
96 | const FieldList& fieldList); | ||
97 | }; | ||
98 | const FieldList& getFieldList() const; | ||
99 | |||
100 | bool operator==(const DataType& other) const; | ||
101 | bool operator!=(const DataType& other) const; | ||
102 | void (* const setValue)(char *&, double); | ||
103 | |||
104 | static const DataType& boolean; | ||
105 | static const DataType& uint8; | ||
106 | static const DataType& int8; | ||
107 | static const DataType& uint16; | ||
108 | static const DataType& int16; | ||
109 | static const DataType& uint32; | ||
110 | static const DataType& int32; | ||
111 | static const DataType& uint64; | ||
112 | static const DataType& int64; | ||
113 | static const DataType& float64; | ||
114 | static const DataType& float32; | ||
115 | |||
116 | virtual void print(std::ostream& os, const char *data, | ||
117 | const char* start, const char* end) const; | ||
118 | |||
119 | struct Printer { | ||
120 | ✗ | Printer(const DataType* dt, const char *addr, size_t nelem): | |
121 | ✗ | type(dt), addr(addr), size(nelem * dt->size) { | |
122 | } | ||
123 | |||
124 | ✗ | friend std::ostream& operator<<(std::ostream& os, | |
125 | const Printer& obj) { | ||
126 | ✗ | obj.type->print(os, obj.addr, obj.addr, | |
127 | ✗ | obj.addr + obj.size); | |
128 | ✗ | return os; | |
129 | } | ||
130 | |||
131 | const DataType* const type; | ||
132 | const char * const addr; | ||
133 | const size_t size; | ||
134 | }; | ||
135 | |||
136 | ✗ | Printer operator()(const void *addr, size_t n = 1) const { | |
137 | ✗ | return Printer(this, reinterpret_cast<const char*>(addr), n); | |
138 | } | ||
139 | |||
140 | ////////////// Iterator to walk through the DataType | ||
141 | // Requires a class with the following members: | ||
142 | // bool newVariable( | ||
143 | // const PdServ::DataType& dtype, | ||
144 | // const PdServ::DataType::DimType& dim, | ||
145 | // size_t dimIdx, size_t elemIdx, size_t offset) const; | ||
146 | // void newDimension( | ||
147 | // const PdServ::DataType& dtype, | ||
148 | // const PdServ::DataType::DimType& dim, | ||
149 | // size_t dimIdx, size_t elemIdx, | ||
150 | // CreateChannels& c, size_t offset); | ||
151 | // void newField(const PdServ::DataType::Field *field, | ||
152 | // CreateChannels& c, size_t offset); | ||
153 | |||
154 | template <class C> | ||
155 | struct Iterator { | ||
156 | Iterator(const DataType& dtype, | ||
157 | const DimType& dim, const C& c); | ||
158 | |||
159 | void dispatch( | ||
160 | const DataType& dtype, size_t dtypeSize, | ||
161 | const DimType& dim, size_t dimIdx, | ||
162 | size_t elemIdx, C c, size_t offset); | ||
163 | |||
164 | void iterateDims( | ||
165 | const DataType& dtype, size_t dtypeSize, | ||
166 | const DimType& dim, | ||
167 | size_t dimIdx, size_t elemIdx, C& c, size_t offset); | ||
168 | |||
169 | void iterateFields(const FieldList& fieldList, | ||
170 | C& c, size_t offset); | ||
171 | }; | ||
172 | |||
173 | |||
174 | protected: | ||
175 | DataType(const DataType& other); | ||
176 | explicit DataType(size_t size, void (*)(char *&dst, double src)); | ||
177 | |||
178 | private: | ||
179 | |||
180 | FieldList fieldList; | ||
181 | }; | ||
182 | |||
183 | ///////////////////////////////////////////////////////////////////////////// | ||
184 | template <class C> | ||
185 | 1848 | DataType::Iterator<C>::Iterator(const DataType& dtype, | |
186 | const DataType::DimType& dim, const C& c) | ||
187 | { | ||
188 |
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1848 | dispatch(dtype, dtype.size * dim.nelem, dim, 0, 0, c, 0); |
189 | 1848 | } | |
190 | |||
191 | |||
192 | ///////////////////////////////////////////////////////////////////////////// | ||
193 | template <class C> | ||
194 | 4312 | void DataType::Iterator<C>::dispatch( | |
195 | const DataType& dtype, size_t dtypeSize, const DimType& dim, | ||
196 | size_t dimIdx, size_t elemIdx, C c, size_t offset) | ||
197 | { | ||
198 |
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4312 | if (c.newVariable(dtype,dim,dimIdx,elemIdx,offset)) |
199 | ✗ | return; | |
200 | |||
201 |
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4312 | if (!dim.isScalar() and dimIdx != dim.size()) |
202 | 770 | iterateDims(dtype, dtypeSize, dim, dimIdx, elemIdx, c, offset); | |
203 |
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3542 | else if (!dtype.isPrimary()) |
204 | ✗ | iterateFields(dtype.getFieldList(), c, offset); | |
205 | } | ||
206 | |||
207 | ///////////////////////////////////////////////////////////////////////////// | ||
208 | template <class C> | ||
209 | 770 | void DataType::Iterator<C>::iterateDims( | |
210 | const DataType& dtype, size_t dtypeSize, const DimType& dim, | ||
211 | size_t dimIdx, size_t /*elemIdx*/, C& c, size_t offset) | ||
212 | { | ||
213 | 770 | size_t end = dim[dimIdx]; | |
214 |
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770 | dtypeSize /= dim[dimIdx]; |
215 | 770 | ++dimIdx; | |
216 |
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3234 | for (size_t i = 0; i < end; ++i) { |
217 | 2464 | c.newDimension(dtype, dim, dimIdx, i, c, offset); | |
218 |
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2464 | dispatch(dtype, dtypeSize, dim, dimIdx, i, c, offset); |
219 | 2464 | offset += dtypeSize; | |
220 | } | ||
221 | 770 | } | |
222 | |||
223 | ///////////////////////////////////////////////////////////////////////////// | ||
224 | template <class C> | ||
225 | ✗ | void DataType::Iterator<C>::iterateFields( | |
226 | const FieldList& fieldList, C& c, size_t offset) | ||
227 | { | ||
228 | ✗ | for (FieldList::const_iterator it = fieldList.begin(); | |
229 | ✗ | it != fieldList.end(); ++it) { | |
230 | ✗ | const Field *field = *it; | |
231 | ✗ | c.newField(field, c, offset + field->offset); | |
232 | ✗ | dispatch(field->type, field->type.size, field->dim, | |
233 | ✗ | 0, 0, c, offset + field->offset); | |
234 | } | ||
235 | } | ||
236 | |||
237 | }; | ||
238 | |||
239 | #endif //DATATYPE_H | ||
240 |