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common.go
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common.go
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package shared
import (
"container/list"
"sync"
)
type ScriptEngine interface {
Stop()
}
type Queue struct {
l *list.List
m sync.Mutex
}
func NewQueue() *Queue {
return &Queue{l: list.New()}
}
func (q *Queue) PushBack(v interface{}) {
if v == nil {
return
}
q.m.Lock()
defer q.m.Unlock()
q.l.PushBack(v)
}
func (q *Queue) PushBackQueue(other *Queue) {
if other == nil {
return
}
q.m.Lock()
defer q.m.Unlock()
q.l.PushBackList(other.l)
}
func (q *Queue) PushFront(v interface{}) {
if v == nil {
return
}
q.m.Lock()
defer q.m.Unlock()
q.l.PushFront(v)
}
func (q *Queue) PushFrontQueue(other *Queue) {
if other == nil {
return
}
q.m.Lock()
defer q.m.Unlock()
q.l.PushFrontList(other.l)
}
func (q *Queue) Front() *list.Element {
q.m.Lock()
defer q.m.Unlock()
return q.l.Front()
}
func (q *Queue) Back() *list.Element {
q.m.Lock()
defer q.m.Unlock()
return q.l.Back()
}
func (q *Queue) Remove(e *list.Element) {
if e == nil {
return
}
q.m.Lock()
defer q.m.Unlock()
q.l.Remove(e)
}
func (q *Queue) Len() int {
q.m.Lock()
defer q.m.Unlock()
return q.l.Len()
}