IVGCVSW-2006: Move ACL memory manager source code under aclCommon
Change-Id: Ie1c74a18de5c3dd1cd5285c222bd6327489c1508
diff --git a/src/backends/aclCommon/memory/OffsetMemoryPool.cpp b/src/backends/aclCommon/memory/OffsetMemoryPool.cpp
new file mode 100644
index 0000000..48bea5e
--- /dev/null
+++ b/src/backends/aclCommon/memory/OffsetMemoryPool.cpp
@@ -0,0 +1,84 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#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
\ No newline at end of file