133 lines
4.5 KiB
C++
133 lines
4.5 KiB
C++
/*
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* Copyright (c) 2017-2020 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ARM_COMPUTE_MEMORYGROUP_H
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#define ARM_COMPUTE_MEMORYGROUP_H
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#include "arm_compute/runtime/IMemoryGroup.h"
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#include "arm_compute/core/Error.h"
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#include "arm_compute/core/utils/misc/Macros.h"
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#include "arm_compute/runtime/IMemoryManager.h"
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#include "arm_compute/runtime/IMemoryPool.h"
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#include <cstddef>
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#include <memory>
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namespace arm_compute
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{
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// Forward declarations
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class IMemory;
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/** Memory group */
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class MemoryGroup final : public IMemoryGroup
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{
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public:
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/** Default Constructor */
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MemoryGroup(std::shared_ptr<IMemoryManager> = nullptr) noexcept;
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/** Default destructor */
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~MemoryGroup() = default;
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/** Prevent instances of this class from being copied (As this class contains pointers) */
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MemoryGroup(const MemoryGroup &) = delete;
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/** Prevent instances of this class from being copy assigned (As this class contains pointers) */
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MemoryGroup &operator=(const MemoryGroup &) = delete;
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/** Allow instances of this class to be moved */
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MemoryGroup(MemoryGroup &&) = default;
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/** Allow instances of this class to be moved */
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MemoryGroup &operator=(MemoryGroup &&) = default;
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// Inherited methods overridden:
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void manage(IMemoryManageable *obj) override;
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void finalize_memory(IMemoryManageable *obj, IMemory &obj_memory, size_t size, size_t alignment) override;
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void acquire() override;
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void release() override;
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MemoryMappings &mappings() override;
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private:
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std::shared_ptr<IMemoryManager> _memory_manager; /**< Memory manager to be used by the group */
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IMemoryPool *_pool; /**< Memory pool that the group is scheduled with */
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MemoryMappings _mappings; /**< Memory mappings of the group */
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};
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inline MemoryGroup::MemoryGroup(std::shared_ptr<IMemoryManager> memory_manager) noexcept
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: _memory_manager(memory_manager),
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_pool(nullptr),
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_mappings()
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{
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}
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inline void MemoryGroup::manage(IMemoryManageable *obj)
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{
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if(_memory_manager && (obj != nullptr))
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{
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ARM_COMPUTE_ERROR_ON(!_memory_manager->lifetime_manager());
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// Defer registration to the first managed object
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_memory_manager->lifetime_manager()->register_group(this);
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// Associate this memory group with the tensor
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obj->associate_memory_group(this);
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// Start object lifetime
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_memory_manager->lifetime_manager()->start_lifetime(obj);
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}
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}
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inline void MemoryGroup::finalize_memory(IMemoryManageable *obj, IMemory &obj_memory, size_t size, size_t alignment)
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{
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if(_memory_manager)
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{
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ARM_COMPUTE_ERROR_ON(!_memory_manager->lifetime_manager());
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_memory_manager->lifetime_manager()->end_lifetime(obj, obj_memory, size, alignment);
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}
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}
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inline void MemoryGroup::acquire()
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{
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if(!_mappings.empty())
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{
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ARM_COMPUTE_ERROR_ON(!_memory_manager->pool_manager());
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_pool = _memory_manager->pool_manager()->lock_pool();
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_pool->acquire(_mappings);
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}
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}
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inline void MemoryGroup::release()
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{
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if(_pool != nullptr)
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{
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ARM_COMPUTE_ERROR_ON(!_memory_manager->pool_manager());
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ARM_COMPUTE_ERROR_ON(_mappings.empty());
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_pool->release(_mappings);
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_memory_manager->pool_manager()->unlock_pool(_pool);
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_pool = nullptr;
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}
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}
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inline MemoryMappings &MemoryGroup::mappings()
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{
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return _mappings;
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}
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} // arm_compute
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#endif /*ARM_COMPUTE_MEMORYGROUP_H */
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