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reconnecter add destroy.

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This commit is contained in:
Miroslav Šedivý
2021-07-26 22:15:34 +02:00
parent b403993fce
commit 963929a7d1
3 changed files with 61 additions and 23 deletions
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41
src/component/utils/reconnecter.ts
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@ -15,17 +15,11 @@ export abstract class ReconnecterAbstract extends EventEmitter<ReconnecterAbstra
}
}
public get connected(): boolean {
throw new Error("Getter'connected()' must be implemented.")
}
public abstract get connected(): boolean
public connect() {
throw new Error("Method 'connect()' must be implemented.")
}
public disconnect() {
throw new Error("Method 'disconnect()' must be implemented.")
}
public abstract connect(): void
public abstract disconnect(): void
public abstract destroy(): void
}
export interface ReconnecterEvents {
@ -44,6 +38,9 @@ export class Reconnecter extends EventEmitter<ReconnecterEvents> {
private _total_reconnects = 0
private _last_connected?: Date
private _onConnectHandle: () => void
private _onDisconnectHandle: (error?: Error) => void
constructor(conn: ReconnecterAbstract, config?: ReconnecterConfig) {
super()
@ -55,8 +52,11 @@ export class Reconnecter extends EventEmitter<ReconnecterEvents> {
...config,
}
this._conn.on('connect', this.onConnect.bind(this))
this._conn.on('disconnect', this.onDisconnect.bind(this))
this._onConnectHandle = this.onConnect.bind(this)
this._conn.on('connect', this._onConnectHandle)
this._onDisconnectHandle = this.onDisconnect.bind(this)
this._conn.on('disconnect', this._onDisconnectHandle)
}
private onConnect() {
@ -160,17 +160,28 @@ export class Reconnecter extends EventEmitter<ReconnecterEvents> {
throw new Error('connection is already connected')
}
if (this._timeout) {
window.clearTimeout(this._timeout)
this._timeout = undefined
}
this._total_reconnects++
if (this._config.maxReconnects > this._total_reconnects || this._total_reconnects < 0) {
setTimeout(this.connect.bind(this), this._config.backoffMs)
this._timeout = window.setTimeout(this.connect.bind(this), this._config.backoffMs)
} else {
this.close(new Error('reconnection failed'))
}
}
public destroy() {
this._conn.off('connect', this.onConnect.bind(this))
this._conn.off('disconnect', this.onDisconnect.bind(this))
if (this._timeout) {
window.clearTimeout(this._timeout)
this._timeout = undefined
}
this._conn.off('connect', this._onConnectHandle)
this._conn.off('disconnect', this._onDisconnectHandle)
this._conn.destroy()
}
}