93 lines
3.6 KiB
JavaScript
93 lines
3.6 KiB
JavaScript
"use strict";
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.ParentNamespace = void 0;
|
|
const namespace_1 = require("./namespace");
|
|
const socket_io_adapter_1 = require("socket.io-adapter");
|
|
const debug_1 = __importDefault(require("debug"));
|
|
const debug = (0, debug_1.default)("socket.io:parent-namespace");
|
|
/**
|
|
* A parent namespace is a special {@link Namespace} that holds a list of child namespaces which were created either
|
|
* with a regular expression or with a function.
|
|
*
|
|
* @example
|
|
* const parentNamespace = io.of(/\/dynamic-\d+/);
|
|
*
|
|
* parentNamespace.on("connection", (socket) => {
|
|
* const childNamespace = socket.nsp;
|
|
* }
|
|
*
|
|
* // will reach all the clients that are in one of the child namespaces, like "/dynamic-101"
|
|
* parentNamespace.emit("hello", "world");
|
|
*
|
|
*/
|
|
class ParentNamespace extends namespace_1.Namespace {
|
|
constructor(server) {
|
|
super(server, "/_" + ParentNamespace.count++);
|
|
this.children = new Set();
|
|
}
|
|
/**
|
|
* @private
|
|
*/
|
|
_initAdapter() {
|
|
this.adapter = new ParentBroadcastAdapter(this, this.children);
|
|
}
|
|
emit(ev, ...args) {
|
|
this.children.forEach((nsp) => {
|
|
nsp.emit(ev, ...args);
|
|
});
|
|
return true;
|
|
}
|
|
createChild(name) {
|
|
debug("creating child namespace %s", name);
|
|
const namespace = new namespace_1.Namespace(this.server, name);
|
|
namespace._fns = this._fns.slice(0);
|
|
this.listeners("connect").forEach((listener) => namespace.on("connect", listener));
|
|
this.listeners("connection").forEach((listener) => namespace.on("connection", listener));
|
|
this.children.add(namespace);
|
|
if (this.server._opts.cleanupEmptyChildNamespaces) {
|
|
const remove = namespace._remove;
|
|
namespace._remove = (socket) => {
|
|
remove.call(namespace, socket);
|
|
if (namespace.sockets.size === 0) {
|
|
debug("closing child namespace %s", name);
|
|
namespace.adapter.close();
|
|
this.server._nsps.delete(namespace.name);
|
|
this.children.delete(namespace);
|
|
}
|
|
};
|
|
}
|
|
this.server._nsps.set(name, namespace);
|
|
// @ts-ignore
|
|
this.server.sockets.emitReserved("new_namespace", namespace);
|
|
return namespace;
|
|
}
|
|
fetchSockets() {
|
|
// note: we could make the fetchSockets() method work for dynamic namespaces created with a regex (by sending the
|
|
// regex to the other Socket.IO servers, and returning the sockets of each matching namespace for example), but
|
|
// the behavior for namespaces created with a function is less clear
|
|
// note²: we cannot loop over each children namespace, because with multiple Socket.IO servers, a given namespace
|
|
// may exist on one node but not exist on another (since it is created upon client connection)
|
|
throw new Error("fetchSockets() is not supported on parent namespaces");
|
|
}
|
|
}
|
|
exports.ParentNamespace = ParentNamespace;
|
|
ParentNamespace.count = 0;
|
|
/**
|
|
* A dummy adapter that only supports broadcasting to child (concrete) namespaces.
|
|
* @private file
|
|
*/
|
|
class ParentBroadcastAdapter extends socket_io_adapter_1.Adapter {
|
|
constructor(parentNsp, children) {
|
|
super(parentNsp);
|
|
this.children = children;
|
|
}
|
|
broadcast(packet, opts) {
|
|
this.children.forEach((nsp) => {
|
|
nsp.adapter.broadcast(packet, opts);
|
|
});
|
|
}
|
|
}
|