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src/sql/executor/ob_distributed_task_executor.h

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OCEANBASE_SQL_EXECUTOR_OB_DISTRIBUTED_TASK_EXECUTOR_
+#define OCEANBASE_SQL_EXECUTOR_OB_DISTRIBUTED_TASK_EXECUTOR_
+
+#include "sql/executor/ob_task_executor.h"
+
+namespace oceanbase {
+namespace sql {
+class ObExecContext;
+class ObJob;
+class ObTask;
+class ObExecutorRpcImpl;
+class ObExecutorRpcCtx;
+class ObTransResultCollector;
+class ObDistributedTaskExecutor : public ObTaskExecutor {
+  public:
+  explicit ObDistributedTaskExecutor(const uint64_t scheduler_id);
+  virtual ~ObDistributedTaskExecutor();
+
+  virtual int execute(ObExecContext& query_ctx, ObJob* job, ObTaskInfo* task_info);
+  virtual int kill(ObExecContext& ctx, ObJob* job, ObTaskInfo* task_info);
+  virtual void reset()
+  {
+    ObTaskExecutor::reset();
+  }
+  int close_result(ObExecContext& ctx, const ObTaskInfo* task_info);
+  void set_trans_result(ObTransResultCollector* trans_result)
+  {
+    trans_result_ = trans_result;
+  }
+
+  private:
+  int send_close_result_rpc(ObExecContext& ctx, const ObTaskInfo* task_info);
+  int build_task(ObExecContext& query_ctx, ObJob& job, ObTaskInfo& task_info, ObTask& task);
+  int task_dispatch(
+      ObExecContext& exec_ctx, ObExecutorRpcImpl& rpc, ObExecutorRpcCtx& rpc_ctx, ObTask& task, ObTaskInfo& task_info);
+
+  private:
+  uint64_t scheduler_id_;
+  ObTransResultCollector* trans_result_;
+  DISALLOW_COPY_AND_ASSIGN(ObDistributedTaskExecutor);
+};
+
+}  // namespace sql
+}  // namespace oceanbase
+#endif /* OCEANBASE_SQL_EXECUTOR_OB_DISTRIBUTED_TASK_EXECUTOR_ */