1 files changed, 46 insertions, 0 deletions
diff --git a/runtimes/neurun/frontend/nnapi/wrapper/ANeuralNetworksMemory.cc b/runtimes/neurun/frontend/nnapi/wrapper/ANeuralNetworksMemory.cc
new file mode 100644
index 000000000..9cc100585
--- /dev/null
+++ b/runtimes/neurun/frontend/nnapi/wrapper/ANeuralNetworksMemory.cc
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <NeuralNetworks.h>
+#include <sys/mman.h>
+
+#include "ANeuralNetworksMemory.h"
+
+//
+// ANeuralNetworksMemory
+//
+ANeuralNetworksMemory::ANeuralNetworksMemory(size_t size, int protect, int fd, size_t offset)
+{
+  _base = reinterpret_cast<uint8_t *>(mmap(nullptr, size, protect, MAP_PRIVATE, fd, offset));
+  _size = size;
+}
+
+ANeuralNetworksMemory::~ANeuralNetworksMemory() { munmap(reinterpret_cast<void *>(_base), _size); }
+
+bool ANeuralNetworksMemory::vaildAccess(size_t offset, size_t length) const
+{
+  if ((offset >= _size) || (length > _size))
+  {
+    return false;
+  }
+
+  if ((offset + length) >= _size)
+  {
+    return false;
+  }
+
+  return true;
+}