65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2019, Parallax Software, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#ifndef STA_THREAD_WORKER_H
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#define STA_THREAD_WORKER_H
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#include "Pthread.hh"
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#include "DisallowCopyAssign.hh"
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#include "Mutex.hh"
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#include "Condition.hh"
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namespace sta {
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typedef void (*ThreadFunc)(void*);
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class ThreadWorker
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{
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public:
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ThreadWorker();
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~ThreadWorker();
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// beginTask() caller must call wait(), or deadlock will happen.
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void beginTask(ThreadFunc func,
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void *arg);
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void wait();
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private:
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DISALLOW_COPY_AND_ASSIGN(ThreadWorker);
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static pthread_attr_t *defaultAttr();
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static void *threadBegin(void *arg);
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typedef enum {
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state_ready = 0,
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state_run,
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state_done,
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state_stop
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} TaskState;
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pthread_t thread_;
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Mutex lock_;
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Condition condition_;
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TaskState state_;
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ThreadFunc func_;
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void *arg_;
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static bool default_attr_inited_;
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static pthread_attr_t default_attr_;
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};
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} // namespace
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#endif
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