@libp2p/tcp
Version:
A TCP transport for libp2p
2 lines • 53.2 kB
JavaScript
(function (root, factory) {(typeof module === 'object' && module.exports) ? module.exports = factory() : root.Libp2PTcp = factory()}(typeof self !== 'undefined' ? self : this, function () {
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listenBelow");e.metrics?.registerMetricGroup("libp2p_tcp_inbound_connections_total",{label:"address",help:"Current active connections in TCP listener",calculate:()=>({[this.addr]:this.sockets.size})}),this.metrics={status:e.metrics?.registerMetricGroup("libp2p_tcp_listener_status_info",{label:"address",help:"Current status of the TCP listener socket"}),errors:e.metrics?.registerMetricGroup("libp2p_tcp_listener_errors_total",{label:"address",help:"Total count of TCP listener errors by type"}),events:e.metrics?.registerMetricGroup("libp2p_tcp_listener_events_total",{label:"address",help:"Total count of TCP listener events by type"})},this.server.on("listening",()=>{let r=this.server.address();r==null?this.addr="unknown":typeof r=="string"?this.addr=r:this.addr=`${r.address}:${r.port}`,this.metrics.status?.update({[this.addr]:T.ACTIVE}),this.safeDispatchEvent("listening")}).on("error",r=>{this.metrics.errors?.increment({[`${this.addr} listen_error`]:!0}),this.safeDispatchEvent("error",{detail:r})}).on("close",()=>{this.metrics.status?.update({[this.addr]:this.status.code}),this.status.code!==T.PAUSED&&this.safeDispatchEvent("close")}).on("drop",()=>{this.metrics.events?.increment({[`${this.addr} drop`]:!0})})}onSocket(e){if(this.metrics.events?.increment({[`${this.addr} connection`]:!0}),this.status.code!==T.ACTIVE)throw e.destroy(),new Pe("Server is not listening yet");let r;try{r=Qe(e,{listeningAddr:this.status.listeningAddr,socketInactivityTimeout:this.context.socketInactivityTimeout,socketCloseTimeout:this.context.socketCloseTimeout,metrics:this.metrics?.events,metricPrefix:`${this.addr} `,logger:this.context.logger,direction:"inbound"})}catch(n){this.log.error("inbound connection failed",n),this.metrics.errors?.increment({[`${this.addr} inbound_to_connection`]:!0}),e.destroy();return}this.log("new inbound connection %s",r.remoteAddr),this.sockets.add(e),this.context.upgrader.upgradeInbound(r,{signal:this.shutdownController.signal}).then(()=>{this.log("inbound connection upgraded %s",r.remoteAddr),e.once("close",()=>{this.sockets.delete(e),this.context.closeServerOnMaxConnections!=null&&this.sockets.size<this.context.closeServerOnMaxConnections.listenBelow&&this.resume().catch(n=>{this.log.error("error attempting to listen server once connection count under limit",n),this.context.closeServerOnMaxConnections?.onListenError?.(n)})}),this.context.closeServerOnMaxConnections!=null&&this.sockets.size>=this.context.closeServerOnMaxConnections.closeAbove&&this.pause()}).catch(async n=>{this.log.error("inbound connection upgrade failed",n),this.metrics.errors?.increment({[`${this.addr} inbound_upgrade`]:!0}),this.sockets.delete(e),r.abort(n)})}getAddrs(){if(this.status.code===T.INACTIVE)return[];let e=this.server.address();return e==null?[]:typeof e=="string"?[F(`/unix/${encodeURIComponent(e)}`)]:en(this.status.listeningAddr,e.port)}updateAnnounceAddrs(){}async listen(e){if(this.status.code===T.ACTIVE||this.status.code===T.PAUSED)throw new Oe("server is already listening");try{this.status={code:T.ACTIVE,listeningAddr:e,netConfig:pe(e,this.context)},await this.resume()}catch(r){throw this.status={code:T.INACTIVE},r}}async close(){let e=[];this.server.listening&&e.push(Qt(this.server,"close")),this.pause(!0),this.shutdownController.abort(),this.sockets.forEach(r=>{r.readable&&(e.push(Qt(r,"close")),r.destroy())}),await Promise.all(e)}async resume(){if(this.server.listening||this.status.code===T.INACTIVE)return;let e=this.status.netConfig;await new Promise((r,n)=>{this.server.once("error",n),this.server.listen(e,r)}),this.status={...this.status,code:T.ACTIVE},this.log("listenin