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49 lines
833 B
Go
49 lines
833 B
Go
package fzf
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import "sync"
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type EventType int
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type Events map[EventType]interface{}
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type EventBox struct {
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events Events
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cond *sync.Cond
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}
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func NewEventBox() *EventBox {
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return &EventBox{make(Events), sync.NewCond(&sync.Mutex{})}
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}
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func (b *EventBox) Wait(callback func(*Events)) {
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b.cond.L.Lock()
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defer b.cond.L.Unlock()
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if len(b.events) == 0 {
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b.cond.Wait()
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}
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callback(&b.events)
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}
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func (b *EventBox) Set(event EventType, value interface{}) {
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b.cond.L.Lock()
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defer b.cond.L.Unlock()
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b.events[event] = value
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b.cond.Broadcast()
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}
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// Unsynchronized; should be called within Wait routine
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func (events *Events) Clear() {
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for event := range *events {
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delete(*events, event)
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}
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}
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func (b *EventBox) Peak(event EventType) bool {
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b.cond.L.Lock()
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defer b.cond.L.Unlock()
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_, ok := b.events[event]
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return ok
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}
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