50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#ifndef OCEANBASE_SQL_EXECUTOR_OB_LOCAL_JOB_EXECUTOR_
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#define OCEANBASE_SQL_EXECUTOR_OB_LOCAL_JOB_EXECUTOR_
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namespace oceanbase
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{
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namespace sql
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{
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class ObTaskInfo;
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class ObJob;
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class ObTaskExecutor;
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class ObExecContext;
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class ObLocalJobExecutor
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{
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public:
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ObLocalJobExecutor();
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virtual ~ObLocalJobExecutor();
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// 设置待调度Job
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void set_job(ObJob &job) { job_ = &job; }
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void set_task_executor(ObTaskExecutor &executor) { executor_ = &executor; }
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// 调度Job，将Job中的Task分发出去执行
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// Job暴露出足够的状态接口，Execute就可以获得正确的待执行Task
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int execute(ObExecContext &ctx);
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inline void reset () { job_ = NULL; executor_ = NULL; }
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private:
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// disallow copy
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ObLocalJobExecutor(const ObLocalJobExecutor &other);
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ObLocalJobExecutor &operator=(const ObLocalJobExecutor &ohter);
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int get_executable_task(ObExecContext &ctx, ObTaskInfo *&task);
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private:
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ObJob *job_;
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ObTaskExecutor *executor_;
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};
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}
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}
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#endif /* OCEANBASE_SQL_EXECUTOR_OB_LOCAL_JOB_EXECUTOR_ */
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//// end of header file
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