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diff --git a/src/cloud_trace_processor/orchestrator_impl.h b/src/cloud_trace_processor/orchestrator_impl.h
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+++ b/src/cloud_trace_processor/orchestrator_impl.h
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+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef SRC_CLOUD_TRACE_PROCESSOR_ORCHESTRATOR_IMPL_H_
+#define SRC_CLOUD_TRACE_PROCESSOR_ORCHESTRATOR_IMPL_H_
+
+#include <memory>
+#include <vector>
+
+#include "perfetto/ext/base/flat_hash_map.h"
+#include "perfetto/ext/base/threading/future.h"
+#include "perfetto/ext/cloud_trace_processor/orchestrator.h"
+
+namespace perfetto {
+namespace protos {
+class TracePoolShardCreateArgs;
+}
+
+namespace cloud_trace_processor {
+
+class OrchestratorImpl : public Orchestrator {
+ public:
+  explicit OrchestratorImpl(std::vector<std::unique_ptr<Worker>> workers);
+
+  base::StatusOrStream<protos::TracePoolQueryResponse> TracePoolQuery(
+      const protos::TracePoolQueryArgs&) override;
+
+  base::StatusOrFuture<protos::TracePoolCreateResponse> TracePoolCreate(
+      const protos::TracePoolCreateArgs&) override;
+
+  base::StatusOrFuture<protos::TracePoolSetTracesResponse> TracePoolSetTraces(
+      const protos::TracePoolSetTracesArgs&) override;
+
+  base::StatusOrFuture<protos::TracePoolDestroyResponse> TracePoolDestroy(
+      const protos::TracePoolDestroyArgs&) override;
+
+ private:
+  struct TracePool {
+    std::vector<std::string> loaded_traces;
+  };
+  std::vector<std::unique_ptr<Worker>> workers_;
+  base::FlatHashMap<std::string, TracePool> pools_;
+};
+
+}  // namespace cloud_trace_processor
+}  // namespace perfetto
+
+#endif  // SRC_CLOUD_TRACE_PROCESSOR_ORCHESTRATOR_IMPL_H_