39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
/***
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* @Author: shenghao.xu
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* @Date: 2023-04-17 10:51:38
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* @LastEditors: shenghao.xu
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* @LastEditTime: 2023-04-17 22:20:58
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* @Description:
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* @email:545403892@qq.com
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* @Copyright (c) 2023 by shenghao.xu, All Rights Reserved.
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*/
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#ifndef __FLOW_SEM_H__
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#define __FLOW_SEM_H__
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#include "flow_def.h"
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#include "flow_core.h"
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#define FLOW_SEM_INIT(s, c) ((s)->count = c)
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#define FLOW_LOCK_WAIT_SEM(f, s) \
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do \
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{ \
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FLOW_LOCK_WAIT(f, (s)->count > 0); \
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--(s)->count; \
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} while (0)
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#define FLOW_LOCK_WAIT_SEM_OR_TIMEOUT(f, s, t) \
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do \
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{ \
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(f)->time = flow_tick; \
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(s)->time = (t); \
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FLOW_LOCK_WAIT(f, (((s)->count > 0) || ((flow_tick - (f)->time) >= ((s)->time)))); \
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if (((s)->count > 0) && ((flow_tick - (f)->time) < ((s)->time))) \
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--(s)->count; \
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} while (0)
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#define FLOW_SEM_RELEASE(s) (++(s)->count)
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#endif /* __FLOW_SEM_H__ */
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