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|---|---|---|---|
| 1 | // SPDX-FileCopyrightText: 2023 Carl Zeiss Microscopy GmbH | ||
| 2 | // | ||
| 3 | // SPDX-License-Identifier: MIT | ||
| 4 | |||
| 5 | #pragma once | ||
| 6 | |||
| 7 | #include <cstring> | ||
| 8 | #include "../IDataObj.h" | ||
| 9 | |||
| 10 | namespace imgdoc2 | ||
| 11 | { | ||
| 12 | /// An implementation of the IDataObjBase interface. This class allocates and owns memory on the heap. | ||
| 13 | class DataObjectOnHeap : public imgdoc2::IDataObjBase | ||
| 14 | { | ||
| 15 | private: | ||
| 16 | std::uint8_t* buffer_{ nullptr }; | ||
| 17 | size_t buffer_size_{ 0 }; | ||
| 18 | public: | ||
| 19 | /// Constructor which allocates the specified amount of data on the heap. | ||
| 20 | /// \param size The size of the buffer to allocate (in bytes). | ||
| 21 | 8 | explicit DataObjectOnHeap(size_t size) | |
| 22 | 8 | { | |
| 23 | 8 | this->buffer_ = static_cast<std::uint8_t*>(malloc(size)); | |
| 24 | 8 | this->buffer_size_ = size; | |
| 25 | 8 | } | |
| 26 | |||
| 27 | //! @copydoc imgdoc2::IDataObjBase::GetData(const void**, size_t*) const | ||
| 28 | 8 | void GetData(const void** p, size_t* s) const override | |
| 29 | { | ||
| 30 |
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8 | if (p != nullptr) |
| 31 | { | ||
| 32 | 8 | *p = this->buffer_; | |
| 33 | } | ||
| 34 | |||
| 35 |
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8 | if (s != nullptr) |
| 36 | { | ||
| 37 | 8 | *s = this->buffer_size_; | |
| 38 | } | ||
| 39 | 8 | } | |
| 40 | |||
| 41 | 16 | ~DataObjectOnHeap() override | |
| 42 | 16 | { | |
| 43 | 16 | free(this->buffer_); | |
| 44 | 16 | } | |
| 45 | |||
| 46 | public: | ||
| 47 | /// Gets a const pointer to the data. The size of this buffer is given by "GetSizeOfData". | ||
| 48 | 4 | [[nodiscard]] const std::uint8_t* GetDataC() const { return this->buffer_; } | |
| 49 | |||
| 50 | /// Gets a pointer to the data. The size of this buffer is given by "GetSizeOfData". | ||
| 51 | 800 | [[nodiscard]] std::uint8_t* GetData() { return this->buffer_; } | |
| 52 | |||
| 53 | /// Gets size of data in bytes. | ||
| 54 | /// \returns The size of the data in bytes. | ||
| 55 | 808 | [[nodiscard]] size_t GetSizeOfData() const { return this->buffer_size_; } | |
| 56 | public: | ||
| 57 | // no copy and no move | ||
| 58 | DataObjectOnHeap() = delete; | ||
| 59 | DataObjectOnHeap(const DataObjectOnHeap&) = delete; // copy constructor | ||
| 60 | DataObjectOnHeap& operator=(const DataObjectOnHeap&) = delete; // copy assignment | ||
| 61 | DataObjectOnHeap(DataObjectOnHeap&&) = delete; // move constructor | ||
| 62 | DataObjectOnHeap& operator=(DataObjectOnHeap&&) = delete; // move assignment | ||
| 63 | }; | ||
| 64 | } | ||
| 65 |