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48 linhas
1.6 KiB
48 linhas
1.6 KiB
#ifndef __KERN_SYNC_WAIT_H__
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#define __KERN_SYNC_WAIT_H__
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#include <list.h>
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typedef struct {
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list_entry_t wait_head;
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} wait_queue_t;
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struct proc_struct;
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typedef struct {
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struct proc_struct *proc;
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uint32_t wakeup_flags;
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wait_queue_t *wait_queue;
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list_entry_t wait_link;
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} wait_t;
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#define le2wait(le, member) \
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to_struct((le), wait_t, member)
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void wait_init(wait_t *wait, struct proc_struct *proc);
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void wait_queue_init(wait_queue_t *queue);
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void wait_queue_add(wait_queue_t *queue, wait_t *wait);
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void wait_queue_del(wait_queue_t *queue, wait_t *wait);
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wait_t *wait_queue_next(wait_queue_t *queue, wait_t *wait);
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wait_t *wait_queue_prev(wait_queue_t *queue, wait_t *wait);
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wait_t *wait_queue_first(wait_queue_t *queue);
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wait_t *wait_queue_last(wait_queue_t *queue);
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bool wait_queue_empty(wait_queue_t *queue);
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bool wait_in_queue(wait_t *wait);
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void wakeup_wait(wait_queue_t *queue, wait_t *wait, uint32_t wakeup_flags, bool del);
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void wakeup_first(wait_queue_t *queue, uint32_t wakeup_flags, bool del);
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void wakeup_queue(wait_queue_t *queue, uint32_t wakeup_flags, bool del);
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void wait_current_set(wait_queue_t *queue, wait_t *wait, uint32_t wait_state);
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#define wait_current_del(queue, wait) \
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do { \
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if (wait_in_queue(wait)) { \
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wait_queue_del(queue, wait); \
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} \
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} while (0)
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#endif /* !__KERN_SYNC_WAIT_H__ */
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