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Diffstat (limited to 'src/armnn/memory/OffsetMemoryPool.cpp')
-rw-r--r-- | src/armnn/memory/OffsetMemoryPool.cpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/armnn/memory/OffsetMemoryPool.cpp b/src/armnn/memory/OffsetMemoryPool.cpp new file mode 100644 index 0000000000..cae79c0a86 --- /dev/null +++ b/src/armnn/memory/OffsetMemoryPool.cpp @@ -0,0 +1,84 @@ +// +// Copyright © 2017 Arm Ltd. All rights reserved. +// See LICENSE file in the project root for full license information. +// +#include "OffsetMemoryPool.hpp" + +#include "boost/assert.hpp" + +#include <algorithm> + +namespace armnn +{ + +OffsetMemoryPool::OffsetMemoryPool(arm_compute::IAllocator* allocator, size_t blobSize) + : m_Allocator(allocator) + , m_Blob() + , m_BlobSize(blobSize) + , m_MemoryAllocated(false) +{ + AllocatePool(); +} + +OffsetMemoryPool::~OffsetMemoryPool() +{ + ReleasePool(); +} + +void OffsetMemoryPool::acquire(arm_compute::MemoryMappings& handles) +{ + BOOST_ASSERT(m_Blob); + + // Set memory to handlers + for(auto& handle : handles) + { + BOOST_ASSERT(handle.first); + *handle.first = reinterpret_cast<uint8_t*>(m_Blob) + handle.second; + } +} + +void OffsetMemoryPool::release(arm_compute::MemoryMappings &handles) +{ + for(auto& handle : handles) + { + BOOST_ASSERT(handle.first); + *handle.first = nullptr; + } +} + +arm_compute::MappingType OffsetMemoryPool::mapping_type() const +{ + return arm_compute::MappingType::OFFSETS; +} + +std::unique_ptr<arm_compute::IMemoryPool> OffsetMemoryPool::duplicate() +{ + BOOST_ASSERT(m_Allocator); + return std::make_unique<OffsetMemoryPool>(m_Allocator, m_BlobSize); +} + +void OffsetMemoryPool::AllocatePool() +{ + if (!m_MemoryAllocated) + { + BOOST_ASSERT(m_Allocator); + m_Blob = m_Allocator->allocate(m_BlobSize, 0); + + m_MemoryAllocated = true; + } +} + +void OffsetMemoryPool::ReleasePool() +{ + if (m_MemoryAllocated) + { + BOOST_ASSERT(m_Allocator); + + m_Allocator->free(m_Blob); + m_Blob = nullptr; + + m_MemoryAllocated = false; + } +} + +} // namespace armnn
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