mirror of
https://github.com/tickstep/aliyunpan.git
synced 2025-01-23 22:42:15 +08:00
62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
// Copyright (c) 2020 tickstep.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package downloader
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import (
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"github.com/tickstep/library-go/expires"
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"sync"
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"time"
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)
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// ResetController 网络连接控制器
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type ResetController struct {
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mu sync.Mutex
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currentTime time.Time
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maxResetNum int
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resetEntity map[expires.Expires]struct{}
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}
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// NewResetController 初始化*ResetController
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func NewResetController(maxResetNum int) *ResetController {
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return &ResetController{
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currentTime: time.Now(),
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maxResetNum: maxResetNum,
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resetEntity: map[expires.Expires]struct{}{},
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}
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}
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func (rc *ResetController) update() {
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for k := range rc.resetEntity {
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if k.IsExpires() {
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delete(rc.resetEntity, k)
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}
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}
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}
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// AddResetNum 增加连接
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func (rc *ResetController) AddResetNum() {
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rc.mu.Lock()
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defer rc.mu.Unlock()
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rc.update()
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rc.resetEntity[expires.NewExpires(9*time.Second)] = struct{}{}
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}
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// CanReset 是否可以建立连接
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func (rc *ResetController) CanReset() bool {
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rc.mu.Lock()
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defer rc.mu.Unlock()
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rc.update()
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return len(rc.resetEntity) < rc.maxResetNum
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}
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