637 lines
No EOL
23 KiB
JavaScript
637 lines
No EOL
23 KiB
JavaScript
"use strict";
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/*
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* Copyright 2021 gRPC authors.
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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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*
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.setup = exports.getChannelzServiceDefinition = exports.getChannelzHandlers = exports.unregisterChannelzRef = exports.registerChannelzSocket = exports.registerChannelzServer = exports.registerChannelzSubchannel = exports.registerChannelzChannel = exports.ChannelzCallTracker = exports.ChannelzChildrenTracker = exports.ChannelzTrace = void 0;
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const net_1 = require("net");
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const connectivity_state_1 = require("./connectivity-state");
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const constants_1 = require("./constants");
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const subchannel_address_1 = require("./subchannel-address");
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const admin_1 = require("./admin");
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const make_client_1 = require("./make-client");
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function channelRefToMessage(ref) {
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return {
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channel_id: ref.id,
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name: ref.name,
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};
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}
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function subchannelRefToMessage(ref) {
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return {
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subchannel_id: ref.id,
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name: ref.name,
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};
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}
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function serverRefToMessage(ref) {
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return {
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server_id: ref.id,
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};
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}
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function socketRefToMessage(ref) {
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return {
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socket_id: ref.id,
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name: ref.name,
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};
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}
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/**
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* The loose upper bound on the number of events that should be retained in a
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* trace. This may be exceeded by up to a factor of 2. Arbitrarily chosen as a
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* number that should be large enough to contain the recent relevant
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* information, but small enough to not use excessive memory.
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*/
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const TARGET_RETAINED_TRACES = 32;
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class ChannelzTrace {
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constructor() {
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this.events = [];
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this.eventsLogged = 0;
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this.creationTimestamp = new Date();
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}
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addTrace(severity, description, child) {
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const timestamp = new Date();
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this.events.push({
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description: description,
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severity: severity,
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timestamp: timestamp,
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childChannel: (child === null || child === void 0 ? void 0 : child.kind) === 'channel' ? child : undefined,
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childSubchannel: (child === null || child === void 0 ? void 0 : child.kind) === 'subchannel' ? child : undefined,
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});
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// Whenever the trace array gets too large, discard the first half
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if (this.events.length >= TARGET_RETAINED_TRACES * 2) {
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this.events = this.events.slice(TARGET_RETAINED_TRACES);
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}
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this.eventsLogged += 1;
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}
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getTraceMessage() {
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return {
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creation_timestamp: dateToProtoTimestamp(this.creationTimestamp),
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num_events_logged: this.eventsLogged,
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events: this.events.map(event => {
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return {
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description: event.description,
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severity: event.severity,
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timestamp: dateToProtoTimestamp(event.timestamp),
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channel_ref: event.childChannel
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? channelRefToMessage(event.childChannel)
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: null,
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subchannel_ref: event.childSubchannel
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? subchannelRefToMessage(event.childSubchannel)
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: null,
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};
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}),
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};
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}
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}
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exports.ChannelzTrace = ChannelzTrace;
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class ChannelzChildrenTracker {
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constructor() {
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this.channelChildren = new Map();
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this.subchannelChildren = new Map();
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this.socketChildren = new Map();
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}
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refChild(child) {
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var _a, _b, _c;
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switch (child.kind) {
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case 'channel': {
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const trackedChild = (_a = this.channelChildren.get(child.id)) !== null && _a !== void 0 ? _a : {
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ref: child,
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count: 0,
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};
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trackedChild.count += 1;
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this.channelChildren.set(child.id, trackedChild);
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break;
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}
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case 'subchannel': {
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const trackedChild = (_b = this.subchannelChildren.get(child.id)) !== null && _b !== void 0 ? _b : {
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ref: child,
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count: 0,
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};
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trackedChild.count += 1;
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this.subchannelChildren.set(child.id, trackedChild);
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break;
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}
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case 'socket': {
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const trackedChild = (_c = this.socketChildren.get(child.id)) !== null && _c !== void 0 ? _c : {
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ref: child,
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count: 0,
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};
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trackedChild.count += 1;
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this.socketChildren.set(child.id, trackedChild);
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break;
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}
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}
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}
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unrefChild(child) {
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switch (child.kind) {
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case 'channel': {
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const trackedChild = this.channelChildren.get(child.id);
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if (trackedChild !== undefined) {
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trackedChild.count -= 1;
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if (trackedChild.count === 0) {
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this.channelChildren.delete(child.id);
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}
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else {
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this.channelChildren.set(child.id, trackedChild);
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}
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}
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break;
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}
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case 'subchannel': {
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const trackedChild = this.subchannelChildren.get(child.id);
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if (trackedChild !== undefined) {
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trackedChild.count -= 1;
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if (trackedChild.count === 0) {
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this.subchannelChildren.delete(child.id);
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}
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else {
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this.subchannelChildren.set(child.id, trackedChild);
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}
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}
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break;
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}
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case 'socket': {
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const trackedChild = this.socketChildren.get(child.id);
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if (trackedChild !== undefined) {
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trackedChild.count -= 1;
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if (trackedChild.count === 0) {
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this.socketChildren.delete(child.id);
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}
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else {
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this.socketChildren.set(child.id, trackedChild);
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}
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}
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break;
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}
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}
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}
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getChildLists() {
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const channels = [];
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for (const { ref } of this.channelChildren.values()) {
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channels.push(ref);
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}
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const subchannels = [];
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for (const { ref } of this.subchannelChildren.values()) {
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subchannels.push(ref);
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}
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const sockets = [];
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for (const { ref } of this.socketChildren.values()) {
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sockets.push(ref);
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}
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return { channels, subchannels, sockets };
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}
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}
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exports.ChannelzChildrenTracker = ChannelzChildrenTracker;
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class ChannelzCallTracker {
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constructor() {
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this.callsStarted = 0;
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this.callsSucceeded = 0;
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this.callsFailed = 0;
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this.lastCallStartedTimestamp = null;
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}
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addCallStarted() {
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this.callsStarted += 1;
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this.lastCallStartedTimestamp = new Date();
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}
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addCallSucceeded() {
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this.callsSucceeded += 1;
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}
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addCallFailed() {
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this.callsFailed += 1;
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}
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}
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exports.ChannelzCallTracker = ChannelzCallTracker;
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let nextId = 1;
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function getNextId() {
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return nextId++;
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}
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const channels = [];
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const subchannels = [];
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const servers = [];
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const sockets = [];
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function registerChannelzChannel(name, getInfo, channelzEnabled) {
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const id = getNextId();
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const ref = { id, name, kind: 'channel' };
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if (channelzEnabled) {
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channels[id] = { ref, getInfo };
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}
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return ref;
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}
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exports.registerChannelzChannel = registerChannelzChannel;
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function registerChannelzSubchannel(name, getInfo, channelzEnabled) {
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const id = getNextId();
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const ref = { id, name, kind: 'subchannel' };
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if (channelzEnabled) {
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subchannels[id] = { ref, getInfo };
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}
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return ref;
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}
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exports.registerChannelzSubchannel = registerChannelzSubchannel;
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function registerChannelzServer(getInfo, channelzEnabled) {
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const id = getNextId();
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const ref = { id, kind: 'server' };
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if (channelzEnabled) {
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servers[id] = { ref, getInfo };
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}
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return ref;
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}
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exports.registerChannelzServer = registerChannelzServer;
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function registerChannelzSocket(name, getInfo, channelzEnabled) {
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const id = getNextId();
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const ref = { id, name, kind: 'socket' };
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if (channelzEnabled) {
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sockets[id] = { ref, getInfo };
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}
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return ref;
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}
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exports.registerChannelzSocket = registerChannelzSocket;
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function unregisterChannelzRef(ref) {
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switch (ref.kind) {
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case 'channel':
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delete channels[ref.id];
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return;
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case 'subchannel':
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delete subchannels[ref.id];
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return;
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case 'server':
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delete servers[ref.id];
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return;
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case 'socket':
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delete sockets[ref.id];
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return;
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}
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}
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exports.unregisterChannelzRef = unregisterChannelzRef;
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/**
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* Parse a single section of an IPv6 address as two bytes
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* @param addressSection A hexadecimal string of length up to 4
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* @returns The pair of bytes representing this address section
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*/
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function parseIPv6Section(addressSection) {
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const numberValue = Number.parseInt(addressSection, 16);
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return [(numberValue / 256) | 0, numberValue % 256];
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}
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/**
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* Parse a chunk of an IPv6 address string to some number of bytes
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* @param addressChunk Some number of segments of up to 4 hexadecimal
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* characters each, joined by colons.
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* @returns The list of bytes representing this address chunk
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*/
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function parseIPv6Chunk(addressChunk) {
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if (addressChunk === '') {
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return [];
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}
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const bytePairs = addressChunk
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.split(':')
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.map(section => parseIPv6Section(section));
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const result = [];
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return result.concat(...bytePairs);
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}
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/**
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* Converts an IPv4 or IPv6 address from string representation to binary
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* representation
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* @param ipAddress an IP address in standard IPv4 or IPv6 text format
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* @returns
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*/
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function ipAddressStringToBuffer(ipAddress) {
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if ((0, net_1.isIPv4)(ipAddress)) {
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return Buffer.from(Uint8Array.from(ipAddress.split('.').map(segment => Number.parseInt(segment))));
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}
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else if ((0, net_1.isIPv6)(ipAddress)) {
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let leftSection;
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let rightSection;
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const doubleColonIndex = ipAddress.indexOf('::');
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if (doubleColonIndex === -1) {
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leftSection = ipAddress;
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rightSection = '';
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}
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else {
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leftSection = ipAddress.substring(0, doubleColonIndex);
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rightSection = ipAddress.substring(doubleColonIndex + 2);
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}
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const leftBuffer = Buffer.from(parseIPv6Chunk(leftSection));
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const rightBuffer = Buffer.from(parseIPv6Chunk(rightSection));
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const middleBuffer = Buffer.alloc(16 - leftBuffer.length - rightBuffer.length, 0);
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return Buffer.concat([leftBuffer, middleBuffer, rightBuffer]);
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}
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else {
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return null;
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}
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}
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function connectivityStateToMessage(state) {
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switch (state) {
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case connectivity_state_1.ConnectivityState.CONNECTING:
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return {
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state: 'CONNECTING',
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};
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case connectivity_state_1.ConnectivityState.IDLE:
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return {
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state: 'IDLE',
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};
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case connectivity_state_1.ConnectivityState.READY:
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return {
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state: 'READY',
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};
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case connectivity_state_1.ConnectivityState.SHUTDOWN:
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return {
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state: 'SHUTDOWN',
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};
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case connectivity_state_1.ConnectivityState.TRANSIENT_FAILURE:
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return {
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state: 'TRANSIENT_FAILURE',
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};
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default:
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return {
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state: 'UNKNOWN',
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};
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}
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}
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function dateToProtoTimestamp(date) {
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if (!date) {
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return null;
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}
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const millisSinceEpoch = date.getTime();
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return {
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seconds: (millisSinceEpoch / 1000) | 0,
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nanos: (millisSinceEpoch % 1000) * 1000000,
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};
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}
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function getChannelMessage(channelEntry) {
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const resolvedInfo = channelEntry.getInfo();
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return {
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ref: channelRefToMessage(channelEntry.ref),
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data: {
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target: resolvedInfo.target,
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state: connectivityStateToMessage(resolvedInfo.state),
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calls_started: resolvedInfo.callTracker.callsStarted,
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calls_succeeded: resolvedInfo.callTracker.callsSucceeded,
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calls_failed: resolvedInfo.callTracker.callsFailed,
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last_call_started_timestamp: dateToProtoTimestamp(resolvedInfo.callTracker.lastCallStartedTimestamp),
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trace: resolvedInfo.trace.getTraceMessage(),
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},
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channel_ref: resolvedInfo.children.channels.map(ref => channelRefToMessage(ref)),
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subchannel_ref: resolvedInfo.children.subchannels.map(ref => subchannelRefToMessage(ref)),
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};
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}
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function GetChannel(call, callback) {
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const channelId = Number.parseInt(call.request.channel_id);
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const channelEntry = channels[channelId];
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if (channelEntry === undefined) {
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callback({
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code: constants_1.Status.NOT_FOUND,
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details: 'No channel data found for id ' + channelId,
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});
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return;
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}
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callback(null, { channel: getChannelMessage(channelEntry) });
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}
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function GetTopChannels(call, callback) {
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const maxResults = Number.parseInt(call.request.max_results);
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const resultList = [];
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let i = Number.parseInt(call.request.start_channel_id);
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for (; i < channels.length; i++) {
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const channelEntry = channels[i];
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if (channelEntry === undefined) {
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continue;
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}
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resultList.push(getChannelMessage(channelEntry));
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if (resultList.length >= maxResults) {
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break;
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}
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}
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callback(null, {
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channel: resultList,
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end: i >= servers.length,
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});
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}
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function getServerMessage(serverEntry) {
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const resolvedInfo = serverEntry.getInfo();
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return {
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ref: serverRefToMessage(serverEntry.ref),
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data: {
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calls_started: resolvedInfo.callTracker.callsStarted,
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calls_succeeded: resolvedInfo.callTracker.callsSucceeded,
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calls_failed: resolvedInfo.callTracker.callsFailed,
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last_call_started_timestamp: dateToProtoTimestamp(resolvedInfo.callTracker.lastCallStartedTimestamp),
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trace: resolvedInfo.trace.getTraceMessage(),
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},
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listen_socket: resolvedInfo.listenerChildren.sockets.map(ref => socketRefToMessage(ref)),
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};
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}
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function GetServer(call, callback) {
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const serverId = Number.parseInt(call.request.server_id);
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const serverEntry = servers[serverId];
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if (serverEntry === undefined) {
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callback({
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code: constants_1.Status.NOT_FOUND,
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details: 'No server data found for id ' + serverId,
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});
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return;
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}
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callback(null, { server: getServerMessage(serverEntry) });
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}
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function GetServers(call, callback) {
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const maxResults = Number.parseInt(call.request.max_results);
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const resultList = [];
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let i = Number.parseInt(call.request.start_server_id);
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for (; i < servers.length; i++) {
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const serverEntry = servers[i];
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if (serverEntry === undefined) {
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continue;
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}
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resultList.push(getServerMessage(serverEntry));
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if (resultList.length >= maxResults) {
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break;
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}
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}
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callback(null, {
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server: resultList,
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end: i >= servers.length,
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});
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}
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function GetSubchannel(call, callback) {
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const subchannelId = Number.parseInt(call.request.subchannel_id);
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const subchannelEntry = subchannels[subchannelId];
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if (subchannelEntry === undefined) {
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callback({
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code: constants_1.Status.NOT_FOUND,
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details: 'No subchannel data found for id ' + subchannelId,
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});
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return;
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}
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const resolvedInfo = subchannelEntry.getInfo();
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const subchannelMessage = {
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ref: subchannelRefToMessage(subchannelEntry.ref),
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data: {
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target: resolvedInfo.target,
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state: connectivityStateToMessage(resolvedInfo.state),
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calls_started: resolvedInfo.callTracker.callsStarted,
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calls_succeeded: resolvedInfo.callTracker.callsSucceeded,
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calls_failed: resolvedInfo.callTracker.callsFailed,
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last_call_started_timestamp: dateToProtoTimestamp(resolvedInfo.callTracker.lastCallStartedTimestamp),
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trace: resolvedInfo.trace.getTraceMessage(),
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},
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socket_ref: resolvedInfo.children.sockets.map(ref => socketRefToMessage(ref)),
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};
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callback(null, { subchannel: subchannelMessage });
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}
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function subchannelAddressToAddressMessage(subchannelAddress) {
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var _a;
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if ((0, subchannel_address_1.isTcpSubchannelAddress)(subchannelAddress)) {
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return {
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address: 'tcpip_address',
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tcpip_address: {
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ip_address: (_a = ipAddressStringToBuffer(subchannelAddress.host)) !== null && _a !== void 0 ? _a : undefined,
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port: subchannelAddress.port,
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},
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};
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}
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else {
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return {
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address: 'uds_address',
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uds_address: {
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filename: subchannelAddress.path,
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},
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};
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}
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}
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function GetSocket(call, callback) {
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var _a, _b, _c, _d, _e;
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const socketId = Number.parseInt(call.request.socket_id);
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const socketEntry = sockets[socketId];
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if (socketEntry === undefined) {
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callback({
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code: constants_1.Status.NOT_FOUND,
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details: 'No socket data found for id ' + socketId,
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});
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return;
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}
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const resolvedInfo = socketEntry.getInfo();
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const securityMessage = resolvedInfo.security
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? {
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model: 'tls',
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tls: {
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|
cipher_suite: resolvedInfo.security.cipherSuiteStandardName
|
|
? 'standard_name'
|
|
: 'other_name',
|
|
standard_name: (_a = resolvedInfo.security.cipherSuiteStandardName) !== null && _a !== void 0 ? _a : undefined,
|
|
other_name: (_b = resolvedInfo.security.cipherSuiteOtherName) !== null && _b !== void 0 ? _b : undefined,
|
|
local_certificate: (_c = resolvedInfo.security.localCertificate) !== null && _c !== void 0 ? _c : undefined,
|
|
remote_certificate: (_d = resolvedInfo.security.remoteCertificate) !== null && _d !== void 0 ? _d : undefined,
|
|
},
|
|
}
|
|
: null;
|
|
const socketMessage = {
|
|
ref: socketRefToMessage(socketEntry.ref),
|
|
local: resolvedInfo.localAddress
|
|
? subchannelAddressToAddressMessage(resolvedInfo.localAddress)
|
|
: null,
|
|
remote: resolvedInfo.remoteAddress
|
|
? subchannelAddressToAddressMessage(resolvedInfo.remoteAddress)
|
|
: null,
|
|
remote_name: (_e = resolvedInfo.remoteName) !== null && _e !== void 0 ? _e : undefined,
|
|
security: securityMessage,
|
|
data: {
|
|
keep_alives_sent: resolvedInfo.keepAlivesSent,
|
|
streams_started: resolvedInfo.streamsStarted,
|
|
streams_succeeded: resolvedInfo.streamsSucceeded,
|
|
streams_failed: resolvedInfo.streamsFailed,
|
|
last_local_stream_created_timestamp: dateToProtoTimestamp(resolvedInfo.lastLocalStreamCreatedTimestamp),
|
|
last_remote_stream_created_timestamp: dateToProtoTimestamp(resolvedInfo.lastRemoteStreamCreatedTimestamp),
|
|
messages_received: resolvedInfo.messagesReceived,
|
|
messages_sent: resolvedInfo.messagesSent,
|
|
last_message_received_timestamp: dateToProtoTimestamp(resolvedInfo.lastMessageReceivedTimestamp),
|
|
last_message_sent_timestamp: dateToProtoTimestamp(resolvedInfo.lastMessageSentTimestamp),
|
|
local_flow_control_window: resolvedInfo.localFlowControlWindow
|
|
? { value: resolvedInfo.localFlowControlWindow }
|
|
: null,
|
|
remote_flow_control_window: resolvedInfo.remoteFlowControlWindow
|
|
? { value: resolvedInfo.remoteFlowControlWindow }
|
|
: null,
|
|
},
|
|
};
|
|
callback(null, { socket: socketMessage });
|
|
}
|
|
function GetServerSockets(call, callback) {
|
|
const serverId = Number.parseInt(call.request.server_id);
|
|
const serverEntry = servers[serverId];
|
|
if (serverEntry === undefined) {
|
|
callback({
|
|
code: constants_1.Status.NOT_FOUND,
|
|
details: 'No server data found for id ' + serverId,
|
|
});
|
|
return;
|
|
}
|
|
const startId = Number.parseInt(call.request.start_socket_id);
|
|
const maxResults = Number.parseInt(call.request.max_results);
|
|
const resolvedInfo = serverEntry.getInfo();
|
|
// If we wanted to include listener sockets in the result, this line would
|
|
// instead say
|
|
// const allSockets = resolvedInfo.listenerChildren.sockets.concat(resolvedInfo.sessionChildren.sockets).sort((ref1, ref2) => ref1.id - ref2.id);
|
|
const allSockets = resolvedInfo.sessionChildren.sockets.sort((ref1, ref2) => ref1.id - ref2.id);
|
|
const resultList = [];
|
|
let i = 0;
|
|
for (; i < allSockets.length; i++) {
|
|
if (allSockets[i].id >= startId) {
|
|
resultList.push(socketRefToMessage(allSockets[i]));
|
|
if (resultList.length >= maxResults) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
callback(null, {
|
|
socket_ref: resultList,
|
|
end: i >= allSockets.length,
|
|
});
|
|
}
|
|
function getChannelzHandlers() {
|
|
return {
|
|
GetChannel,
|
|
GetTopChannels,
|
|
GetServer,
|
|
GetServers,
|
|
GetSubchannel,
|
|
GetSocket,
|
|
GetServerSockets,
|
|
};
|
|
}
|
|
exports.getChannelzHandlers = getChannelzHandlers;
|
|
let loadedChannelzDefinition = null;
|
|
function getChannelzServiceDefinition() {
|
|
if (loadedChannelzDefinition) {
|
|
return loadedChannelzDefinition;
|
|
}
|
|
/* The purpose of this complexity is to avoid loading @grpc/proto-loader at
|
|
* runtime for users who will not use/enable channelz. */
|
|
const loaderLoadSync = require('@grpc/proto-loader')
|
|
.loadSync;
|
|
const loadedProto = loaderLoadSync('channelz.proto', {
|
|
keepCase: true,
|
|
longs: String,
|
|
enums: String,
|
|
defaults: true,
|
|
oneofs: true,
|
|
includeDirs: [`${__dirname}/../../proto`],
|
|
});
|
|
const channelzGrpcObject = (0, make_client_1.loadPackageDefinition)(loadedProto);
|
|
loadedChannelzDefinition =
|
|
channelzGrpcObject.grpc.channelz.v1.Channelz.service;
|
|
return loadedChannelzDefinition;
|
|
}
|
|
exports.getChannelzServiceDefinition = getChannelzServiceDefinition;
|
|
function setup() {
|
|
(0, admin_1.registerAdminService)(getChannelzServiceDefinition, getChannelzHandlers);
|
|
}
|
|
exports.setup = setup;
|
|
//# sourceMappingURL=channelz.js.map
|