| /* |
| * Copyright (c) 2018 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef __ARM_COMPUTE_RUNTIME_IMEMORY_REGION_H__ |
| #define __ARM_COMPUTE_RUNTIME_IMEMORY_REGION_H__ |
| |
| #include <cstddef> |
| #include <memory> |
| |
| namespace arm_compute |
| { |
| /** Memory region interface */ |
| class IMemoryRegion |
| { |
| public: |
| /** Default constructor |
| * |
| * @param[in] size Region size |
| */ |
| explicit IMemoryRegion(size_t size) |
| : _size(size) |
| { |
| } |
| /** Virtual Destructor */ |
| virtual ~IMemoryRegion() = default; |
| /** Extract a sub-region from the memory |
| * |
| * @warning Ownership is maintained by the parent memory, |
| * while a wrapped raw memory region is returned by this function. |
| * Thus parent memory should not be released before this. |
| * |
| * |
| * @param[in] offset Offset to the region |
| * @param[in] size Size of the region |
| * |
| * @return A wrapped memory sub-region with no ownership of the underlying memory |
| */ |
| virtual std::unique_ptr<IMemoryRegion> extract_subregion(size_t offset, size_t size) = 0; |
| /** Returns the pointer to the allocated data. |
| * |
| * @return Pointer to the allocated data |
| */ |
| virtual void *buffer() = 0; |
| /** Returns the pointer to the allocated data. |
| * |
| * @return Pointer to the allocated data |
| */ |
| virtual void *buffer() const = 0; |
| /** Memory region size accessor |
| * |
| * @return Memory region size |
| */ |
| size_t size() const |
| { |
| return _size; |
| } |
| /** Sets size of region |
| * |
| * @warning This should only be used in correlation with handle |
| * |
| * @param[in] size Size to set |
| */ |
| void set_size(size_t size) |
| { |
| _size = size; |
| } |
| |
| protected: |
| size_t _size; |
| }; |
| } // namespace arm_compute |
| #endif /* __ARM_COMPUTE_RUNTIME_IMEMORY_REGION_H__ */ |