IVGCVSW-5636 'Implement NNAPI caching functions'
* Cached serialized ArmNN model.
!armnn:6384
Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Signed-off-by: Kevin May <kevin.may@arm.com>
Change-Id: I78120a7f8ea892a28c0ff25f1b54e67a4f912574
diff --git a/CacheDataHandler.cpp b/CacheDataHandler.cpp
new file mode 100644
index 0000000..3688162
--- /dev/null
+++ b/CacheDataHandler.cpp
@@ -0,0 +1,63 @@
+//
+// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "CacheDataHandler.hpp"
+
+#include <log/log.h>
+
+namespace armnn_driver
+{
+
+CacheDataHandler& CacheDataHandlerInstance()
+{
+ static CacheDataHandler instance;
+ return instance;
+}
+
+void CacheDataHandler::Register(const HidlToken token, const size_t hashValue, const size_t cacheSize)
+{
+ if (m_CacheDataMap.find(hashValue) != m_CacheDataMap.end())
+ {
+ ALOGV("CacheHandler::Register() Token has been already registered.");
+ return;
+ }
+ CacheHandle cacheHandle(token, cacheSize);
+ m_CacheDataMap.insert({hashValue, cacheHandle});
+}
+
+bool CacheDataHandler::Validate(const HidlToken token, const size_t hashValue) const
+{
+ return (m_CacheDataMap.find(hashValue) != m_CacheDataMap.end()
+ && m_CacheDataMap.at(hashValue).GetToken() == token);
+}
+
+size_t CacheDataHandler::Hash(std::vector<uint8_t>& cacheData)
+{
+ std::size_t hash = cacheData.size();
+ for (auto& i : cacheData)
+ {
+ hash ^= std::hash<unsigned int>{}(i);
+ }
+ return hash;
+}
+
+size_t CacheDataHandler::GetCacheSize(HidlToken token)
+{
+ for (auto i = m_CacheDataMap.begin(); i != m_CacheDataMap.end(); ++i)
+ {
+ if (i->second.GetToken() == token)
+ {
+ return i->second.GetCacheSize();
+ }
+ }
+ return 0;
+}
+
+void CacheDataHandler::Clear()
+{
+ m_CacheDataMap.clear();
+}
+
+} // armnn_driver