# wiesel / src / common / wiesel / io / datasource.h

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 /** * Copyright (C) 2012 * Christian Fischer * * https://bitbucket.org/baldur/wiesel/ * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 3 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General * Public License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301 USA */ #ifndef __WIESEL_IO_DATASOURCE_H__ #define __WIESEL_IO_DATASOURCE_H__ #include #include "databuffer.h" #include "wiesel/util/shared_object.h" namespace wiesel { /** * @brief Wrapper object for any kind of data source, like files or buffers. */ class WIESEL_COMMON_EXPORT DataSource : public virtual SharedObject { protected: DataSource(); public: virtual ~DataSource(); /** * @brief Get the \ref DataBuffer of this data source. * This is the most universal method to get the data. */ virtual DataBuffer *getDataBuffer() = 0; }; /** * @brief A DataSource which provides data of a \ref DataBuffer object. */ class WIESEL_COMMON_EXPORT BufferDataSource : public DataSource { private: BufferDataSource() : buffer(NULL) {} public: /** * @brief Creates a new \ref BufferDataSource with existing data. */ BufferDataSource(DataBuffer::mutable_data_t data, size_t size); /** * @brief Creates a new \ref BufferDataSource with an existing \ref DataBuffer. */ BufferDataSource(DataBuffer *buffer); virtual ~BufferDataSource(); virtual DataBuffer *getDataBuffer(); private: DataBuffer* buffer; }; } /* namespace wiesel */ #endif /* __WIESEL_IO_DATASOURCE_H__ */