chore: import upstream snapshot with attribution

libnd4j/include/memory/impl/MemoryRegistrator.cpp

@@ -0,0 +1,74 @@
+/* ******************************************************************************
+ *
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ *  See the NOTICE file distributed with this work for additional
+ *  information regarding copyright ownership.
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+//
+// Created by raver119 on 07.10.2017.
+//
+#include <memory/MemoryRegistrator.h>
+
+namespace sd {
+namespace memory {
+
+MemoryRegistrator::MemoryRegistrator() { _workspace = nullptr; };
+
+MemoryRegistrator& MemoryRegistrator::getInstance() {
+  static MemoryRegistrator instance;
+  return instance;
+}
+
+bool MemoryRegistrator::hasWorkspaceAttached() { return _workspace != nullptr; }
+
+Workspace* MemoryRegistrator::getWorkspace() { return _workspace; }
+
+void MemoryRegistrator::attachWorkspace(Workspace* workspace) { _workspace = workspace; }
+
+void MemoryRegistrator::forgetWorkspace() { _workspace = nullptr; }
+
+void MemoryRegistrator::setGraphMemoryFootprint(LongType hash, LongType bytes) {
+  _lock.lock();
+
+  _footprint[hash] = bytes;
+
+  _lock.unlock();
+}
+
+void MemoryRegistrator::setGraphMemoryFootprintIfGreater(LongType hash, LongType bytes) {
+  _lock.lock();
+
+  if (_footprint.count(hash) == 0)
+    _footprint[hash] = bytes;
+  else {
+    LongType cv = _footprint[hash];
+    if (bytes > cv) _footprint[hash] = bytes;
+  }
+
+  _lock.unlock();
+}
+
+LongType MemoryRegistrator::getGraphMemoryFootprint(LongType hash) {
+  _lock.lock();
+
+  LongType result = 0L;
+  if (_footprint.count(hash) > 0) result = _footprint[hash];
+
+  _lock.unlock();
+
+  return result;
+}
+}  // namespace memory
+}  // namespace sd