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authoraltaf-creator <dev@altafcreator.com>2025-11-16 19:08:29 +0800
committeraltaf-creator <dev@altafcreator.com>2025-11-16 19:08:29 +0800
commit434aa8343fdcbb4d5002f934979913c099489bee (patch)
tree55bab4ec5a6151be57797d34f61faf5ea744471b /frontend-old/node_modules/@grpc/grpc-js/src/channel.ts
parent893c388d4e99442a36005e5971a87730623f946e (diff)
sdk, del
Diffstat (limited to 'frontend-old/node_modules/@grpc/grpc-js/src/channel.ts')
-rw-r--r--frontend-old/node_modules/@grpc/grpc-js/src/channel.ts174
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diff --git a/frontend-old/node_modules/@grpc/grpc-js/src/channel.ts b/frontend-old/node_modules/@grpc/grpc-js/src/channel.ts
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-/*
- * Copyright 2019 gRPC authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-import { ChannelCredentials } from './channel-credentials';
-import { ChannelOptions } from './channel-options';
-import { ServerSurfaceCall } from './server-call';
-
-import { ConnectivityState } from './connectivity-state';
-import { ChannelRef } from './channelz';
-import { Call } from './call-interface';
-import { InternalChannel } from './internal-channel';
-import { Deadline } from './deadline';
-
-/**
- * An interface that represents a communication channel to a server specified
- * by a given address.
- */
-export interface Channel {
- /**
- * Close the channel. This has the same functionality as the existing
- * grpc.Client.prototype.close
- */
- close(): void;
- /**
- * Return the target that this channel connects to
- */
- getTarget(): string;
- /**
- * Get the channel's current connectivity state. This method is here mainly
- * because it is in the existing internal Channel class, and there isn't
- * another good place to put it.
- * @param tryToConnect If true, the channel will start connecting if it is
- * idle. Otherwise, idle channels will only start connecting when a
- * call starts.
- */
- getConnectivityState(tryToConnect: boolean): ConnectivityState;
- /**
- * Watch for connectivity state changes. This is also here mainly because
- * it is in the existing external Channel class.
- * @param currentState The state to watch for transitions from. This should
- * always be populated by calling getConnectivityState immediately
- * before.
- * @param deadline A deadline for waiting for a state change
- * @param callback Called with no error when a state change, or with an
- * error if the deadline passes without a state change.
- */
- watchConnectivityState(
- currentState: ConnectivityState,
- deadline: Date | number,
- callback: (error?: Error) => void
- ): void;
- /**
- * Get the channelz reference object for this channel. A request to the
- * channelz service for the id in this object will provide information
- * about this channel.
- */
- getChannelzRef(): ChannelRef;
- /**
- * Create a call object. Call is an opaque type that is used by the Client
- * class. This function is called by the gRPC library when starting a
- * request. Implementers should return an instance of Call that is returned
- * from calling createCall on an instance of the provided Channel class.
- * @param method The full method string to request.
- * @param deadline The call deadline
- * @param host A host string override for making the request
- * @param parentCall A server call to propagate some information from
- * @param propagateFlags A bitwise combination of elements of grpc.propagate
- * that indicates what information to propagate from parentCall.
- */
- createCall(
- method: string,
- deadline: Deadline,
- host: string | null | undefined,
- parentCall: ServerSurfaceCall | null,
- propagateFlags: number | null | undefined
- ): Call;
-}
-
-export class ChannelImplementation implements Channel {
- private internalChannel: InternalChannel;
-
- constructor(
- target: string,
- credentials: ChannelCredentials,
- options: ChannelOptions
- ) {
- if (typeof target !== 'string') {
- throw new TypeError('Channel target must be a string');
- }
- if (!(credentials instanceof ChannelCredentials)) {
- throw new TypeError(
- 'Channel credentials must be a ChannelCredentials object'
- );
- }
- if (options) {
- if (typeof options !== 'object') {
- throw new TypeError('Channel options must be an object');
- }
- }
-
- this.internalChannel = new InternalChannel(target, credentials, options);
- }
-
- close() {
- this.internalChannel.close();
- }
-
- getTarget() {
- return this.internalChannel.getTarget();
- }
-
- getConnectivityState(tryToConnect: boolean) {
- return this.internalChannel.getConnectivityState(tryToConnect);
- }
-
- watchConnectivityState(
- currentState: ConnectivityState,
- deadline: Date | number,
- callback: (error?: Error) => void
- ): void {
- this.internalChannel.watchConnectivityState(
- currentState,
- deadline,
- callback
- );
- }
-
- /**
- * Get the channelz reference object for this channel. The returned value is
- * garbage if channelz is disabled for this channel.
- * @returns
- */
- getChannelzRef() {
- return this.internalChannel.getChannelzRef();
- }
-
- createCall(
- method: string,
- deadline: Deadline,
- host: string | null | undefined,
- parentCall: ServerSurfaceCall | null,
- propagateFlags: number | null | undefined
- ): Call {
- if (typeof method !== 'string') {
- throw new TypeError('Channel#createCall: method must be a string');
- }
- if (!(typeof deadline === 'number' || deadline instanceof Date)) {
- throw new TypeError(
- 'Channel#createCall: deadline must be a number or Date'
- );
- }
- return this.internalChannel.createCall(
- method,
- deadline,
- host,
- parentCall,
- propagateFlags
- );
- }
-}