chore: import upstream snapshot with attribution

2026-07-13 12:47:05 +08:00
commit 4f3b7da785
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+/* ******************************************************************************
+ *
+ *
+ * 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 12.09.17.
+//
+
+#ifndef LIBND4J_MEMORYREGISTRATOR_H
+#define LIBND4J_MEMORYREGISTRATOR_H
+
+#include <system/common.h>
+#include <system/op_boilerplate.h>
+
+#include <map>
+#include <mutex>
+#include <unordered_map>
+
+#include "Workspace.h"
+
+namespace sd {
+namespace memory {
+class SD_LIB_EXPORT MemoryRegistrator {
+ protected:
+  Workspace* _workspace;
+  SD_MAP_IMPL<LongType, LongType> _footprint;
+  std::mutex _lock;
+
+  MemoryRegistrator();
+  ~MemoryRegistrator() = default;
+
+ public:
+  static MemoryRegistrator& getInstance();
+  bool hasWorkspaceAttached();
+  Workspace* getWorkspace();
+  void attachWorkspace(Workspace* workspace);
+  void forgetWorkspace();
+
+  /**
+   * This method allows you to set memory requirements for given graph
+   */
+  void setGraphMemoryFootprint(LongType hash, LongType bytes);
+
+  /**
+   * This method allows you to set memory requirements for given graph, ONLY if
+   * new amount of bytes is greater then current one
+   */
+  void setGraphMemoryFootprintIfGreater(LongType hash, LongType bytes);
+
+  /**
+   * This method returns memory requirements for given graph
+   */
+  LongType getGraphMemoryFootprint(LongType hash);
+};
+}  // namespace memory
+}  // namespace sd
+
+#endif  // LIBND4J_MEMORYREGISTRATOR_H