mirror of
https://github.com/sogou/workflow.git
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XieHan
94 lines
1.7 KiB
C++
94 lines
1.7 KiB
C++
/*
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Copyright (c) 2019 Sogou, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Author: Xie Han (xiehan@sogou-inc.com)
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*/
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#ifndef _SUBTASK_H_
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#define _SUBTASK_H_
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#include <stddef.h>
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class ParallelTask;
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class SubTask
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{
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public:
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virtual void dispatch() = 0;
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private:
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virtual SubTask *done() = 0;
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protected:
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void subtask_done();
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public:
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ParallelTask *get_parent_task() const { return this->parent; }
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void *get_pointer() const { return this->pointer; }
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void set_pointer(void *pointer) { this->pointer = pointer; }
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private:
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ParallelTask *parent;
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SubTask **entry;
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void *pointer;
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public:
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SubTask()
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{
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this->parent = NULL;
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this->entry = NULL;
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this->pointer = NULL;
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}
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virtual ~SubTask() { }
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friend class ParallelTask;
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};
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class ParallelTask : public SubTask
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{
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public:
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ParallelTask(SubTask **subtasks, size_t n)
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{
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this->subtasks = subtasks;
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this->subtasks_nr = n;
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}
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SubTask **get_subtasks(size_t *n) const
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{
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*n = this->subtasks_nr;
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return this->subtasks;
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}
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void set_subtasks(SubTask **subtasks, size_t n)
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{
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this->subtasks = subtasks;
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this->subtasks_nr = n;
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}
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public:
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virtual void dispatch();
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protected:
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SubTask **subtasks;
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size_t subtasks_nr;
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private:
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size_t nleft;
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friend class SubTask;
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};
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#endif
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