60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018/06/26 Bernard Fix the wait queue issue when wakeup a soon
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* to blocked thread.
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*/
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#ifndef WAITQUEUE_H__
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#define WAITQUEUE_H__
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#include <rtthread.h>
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#define RT_WQ_FLAG_CLEAN 0x00
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#define RT_WQ_FLAG_WAKEUP 0x01
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struct rt_wqueue_node;
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typedef int (*rt_wqueue_func_t)(struct rt_wqueue_node *wait, void *key);
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struct rt_wqueue_node
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{
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rt_thread_t polling_thread;
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rt_list_t list;
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rt_wqueue_func_t wakeup;
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rt_uint32_t key;
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};
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typedef struct rt_wqueue_node rt_wqueue_node_t;
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int __wqueue_default_wake(struct rt_wqueue_node *wait, void *key);
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rt_inline void rt_wqueue_init(rt_wqueue_t *queue)
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{
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RT_ASSERT(queue != RT_NULL);
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queue->flag = RT_WQ_FLAG_CLEAN;
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rt_list_init(&(queue->waiting_list));
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}
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void rt_wqueue_add(rt_wqueue_t *queue, struct rt_wqueue_node *node);
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void rt_wqueue_remove(struct rt_wqueue_node *node);
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int rt_wqueue_wait(rt_wqueue_t *queue, int condition, int timeout);
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void rt_wqueue_wakeup(rt_wqueue_t *queue, void *key);
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#define DEFINE_WAIT_FUNC(name, function) \
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struct rt_wqueue_node name = { \
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rt_current_thread, \
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RT_LIST_OBJECT_INIT(((name).list)), \
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\
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function, \
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0 \
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}
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#define DEFINE_WAIT(name) DEFINE_WAIT_FUNC(name, __wqueue_default_wake)
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#endif
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