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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "RefTensorHandle.hpp"
namespace armnn
{
RefTensorHandle::RefTensorHandle(const TensorInfo &tensorInfo, std::shared_ptr<RefMemoryManager> &memoryManager):
m_TensorInfo(tensorInfo),
m_MemoryManager(memoryManager),
m_Pool(nullptr),
m_UnmanagedMemory(nullptr),
m_ImportedMemory(nullptr)
{
}
RefTensorHandle::RefTensorHandle(const TensorInfo& tensorInfo)
: m_TensorInfo(tensorInfo),
m_Pool(nullptr),
m_UnmanagedMemory(nullptr),
m_ImportedMemory(nullptr)
{
}
RefTensorHandle::~RefTensorHandle()
{
::operator delete(m_UnmanagedMemory);
}
void RefTensorHandle::Manage()
{
ARMNN_ASSERT_MSG(!m_Pool, "RefTensorHandle::Manage() called twice");
ARMNN_ASSERT_MSG(!m_UnmanagedMemory, "RefTensorHandle::Manage() called after Allocate()");
if (m_MemoryManager)
{
m_Pool = m_MemoryManager->Manage(m_TensorInfo.GetNumBytes());
}
}
void RefTensorHandle::Allocate()
{
if (!m_UnmanagedMemory)
{
if (!m_Pool)
{
// unmanaged
m_UnmanagedMemory = ::operator new(m_TensorInfo.GetNumBytes());
}
else
{
m_MemoryManager->Allocate(m_Pool);
}
}
else
{
throw InvalidArgumentException("RefTensorHandle::Allocate Trying to allocate a RefTensorHandle"
"that already has allocated memory.");
}
}
const void* RefTensorHandle::Map(bool /*unused*/) const
{
return GetPointer();
}
void* RefTensorHandle::GetPointer() const
{
if (m_ImportedMemory)
{
return m_ImportedMemory;
}
else if (m_UnmanagedMemory)
{
return m_UnmanagedMemory;
}
else if (m_Pool)
{
return m_MemoryManager->GetPointer(m_Pool);
}
else
{
throw NullPointerException("RefTensorHandle::GetPointer called on unmanaged, unallocated tensor handle");
}
}
void RefTensorHandle::CopyOutTo(void* dest) const
{
const void *src = GetPointer();
ARMNN_ASSERT(src);
memcpy(dest, src, m_TensorInfo.GetNumBytes());
}
void RefTensorHandle::CopyInFrom(const void* src)
{
void *dest = GetPointer();
ARMNN_ASSERT(dest);
memcpy(dest, src, m_TensorInfo.GetNumBytes());
}
MemorySourceFlags RefTensorHandle::GetImportFlags() const
{
return static_cast<MemorySourceFlags>(MemorySource::Malloc);
}
bool RefTensorHandle::Import(void* memory, MemorySource source)
{
if (source == MemorySource::Malloc)
{
// Check memory alignment
if(!CanBeImported(memory, source))
{
m_ImportedMemory = nullptr;
return false;
}
m_ImportedMemory = memory;
return true;
}
return false;
}
bool RefTensorHandle::CanBeImported(void *memory, MemorySource source)
{
if (source == MemorySource::Malloc)
{
uintptr_t alignment = GetDataTypeSize(m_TensorInfo.GetDataType());
if (reinterpret_cast<uintptr_t>(memory) % alignment)
{
return false;
}
return true;
}
return false;
}
}
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