| // |
| // Copyright © 2020 Arm Ltd. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #include "SampleTensorHandle.hpp" |
| |
| namespace armnn |
| { |
| |
| SampleTensorHandle::SampleTensorHandle(const TensorInfo &tensorInfo, |
| std::shared_ptr<SampleMemoryManager> &memoryManager) |
| : m_TensorInfo(tensorInfo), |
| m_MemoryManager(memoryManager), |
| m_Pool(nullptr), |
| m_UnmanagedMemory(nullptr), |
| m_ImportFlags(static_cast<MemorySourceFlags>(MemorySource::Undefined)), |
| m_Imported(false) |
| { |
| |
| } |
| |
| SampleTensorHandle::SampleTensorHandle(const TensorInfo& tensorInfo, |
| std::shared_ptr<SampleMemoryManager> &memoryManager, |
| MemorySourceFlags importFlags) |
| : m_TensorInfo(tensorInfo), |
| m_MemoryManager(memoryManager), |
| m_Pool(nullptr), |
| m_UnmanagedMemory(nullptr), |
| m_ImportFlags(importFlags), |
| m_Imported(false) |
| { |
| |
| } |
| |
| SampleTensorHandle::~SampleTensorHandle() |
| { |
| if (!m_Pool) |
| { |
| // unmanaged |
| if (!m_Imported) |
| { |
| ::operator delete(m_UnmanagedMemory); |
| } |
| } |
| } |
| |
| void SampleTensorHandle::Manage() |
| { |
| m_Pool = m_MemoryManager->Manage(m_TensorInfo.GetNumBytes()); |
| } |
| |
| void SampleTensorHandle::Allocate() |
| { |
| if (!m_UnmanagedMemory) |
| { |
| if (!m_Pool) |
| { |
| // unmanaged |
| m_UnmanagedMemory = ::operator new(m_TensorInfo.GetNumBytes()); |
| } |
| else |
| { |
| m_MemoryManager->Allocate(m_Pool); |
| } |
| } |
| else |
| { |
| throw InvalidArgumentException("SampleTensorHandle::Allocate Trying to allocate a SampleTensorHandle" |
| "that already has allocated memory."); |
| } |
| } |
| |
| const void* SampleTensorHandle::Map(bool /*unused*/) const |
| { |
| return GetPointer(); |
| } |
| |
| void* SampleTensorHandle::GetPointer() const |
| { |
| if (m_UnmanagedMemory) |
| { |
| return m_UnmanagedMemory; |
| } |
| else |
| { |
| return m_MemoryManager->GetPointer(m_Pool); |
| } |
| } |
| |
| bool SampleTensorHandle::Import(void* memory, MemorySource source) |
| { |
| |
| if (m_ImportFlags & static_cast<MemorySourceFlags>(source)) |
| { |
| if (source == MemorySource::Malloc) |
| { |
| // Check memory alignment |
| constexpr uintptr_t alignment = sizeof(size_t); |
| if (reinterpret_cast<uintptr_t>(memory) % alignment) |
| { |
| if (m_Imported) |
| { |
| m_Imported = false; |
| m_UnmanagedMemory = nullptr; |
| } |
| |
| return false; |
| } |
| |
| // m_UnmanagedMemory not yet allocated. |
| if (!m_Imported && !m_UnmanagedMemory) |
| { |
| m_UnmanagedMemory = memory; |
| m_Imported = true; |
| return true; |
| } |
| |
| // m_UnmanagedMemory initially allocated with Allocate(). |
| if (!m_Imported && m_UnmanagedMemory) |
| { |
| return false; |
| } |
| |
| // m_UnmanagedMemory previously imported. |
| if (m_Imported) |
| { |
| m_UnmanagedMemory = memory; |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| } |