import { SshChannel } from '@microsoft/dev-tunnels-ssh';
import { ForwardedPort } from './forwardedPort';
import { ForwardedPortChannelEventArgs, ForwardedPortEventArgs } from './forwardedPortEventArgs';
/**
 * Tracks the list of ports that are currently being forwarded between the SSH client and server,
 * along with the set of channel connections for each forwarded port.
 *
 * Ports forwarded in either direction (client->server or server->client) are tracked in separate
 * collections. Typically within a session the forwarding is done only in one direction, though
 * the protocol supports bi-directional forwarding.
 *
 * @see PortForwardingService.RemoteForwardedPorts
 * @see PortForwardingService.LocalForwardedPorts
 */
export declare class ForwardedPortsCollection implements ReadonlySet<ForwardedPort> {
    /**
     * Maintains a mapping from port keys to port objects and channels for the port.
     *
     * The ForwardedPort string representation is used as the keys.
     */
    private portChannelMap;
    /** Gets the number of ports in the collection. */
    get size(): number;
    /** Checks whether a port is in the collection. */
    has(port: ForwardedPort): boolean;
    /** Lists all the ports in the collection. */
    values(): IterableIterator<ForwardedPort>;
    /** Iterates over all the ports in the collection. */
    [Symbol.iterator](): IterableIterator<ForwardedPort>;
    /** Lists all the ports in the collection. */
    entries(): IterableIterator<[ForwardedPort, ForwardedPort]>;
    /**
     * Lists all the ports in the collection.
     * (In a set, the keys are the same as the values.)
     */
    keys(): IterableIterator<ForwardedPort>;
    /** Iterates over all the ports in the collection, invoking a callback function on each. */
    forEach(callbackfn: (value: ForwardedPort, key: ForwardedPort, set: ReadonlySet<ForwardedPort>) => void, thisArg?: any): void;
    getChannels(port: ForwardedPort): SshChannel[];
    private readonly portAddedEmitter;
    /** Event raised when a port is added to the collection. */
    readonly onPortAdded: import("vscode-jsonrpc").Event<ForwardedPortEventArgs>;
    private readonly portUpdatedEmitter;
    /**
     * Event raised when a port in the collection is updated. "Updating" a port doesn't
     * change anything at the SSH protocol level, but the application may use this event
     * as a signal to update or refresh its state for the forwarded port.
     */
    readonly onPortUpdated: import("vscode-jsonrpc").Event<ForwardedPortEventArgs>;
    private readonly portRemovedEmitter;
    /** Event raised when a port is removed from the collection. */
    readonly onPortRemoved: import("vscode-jsonrpc").Event<ForwardedPortEventArgs>;
    private readonly portChannelAddedEmitter;
    /** Event raised when a channel is added to the collection. */
    readonly onPortChannelAdded: import("vscode-jsonrpc").Event<ForwardedPortChannelEventArgs>;
    private readonly portChannelRemovedEmitter;
    /** Event raised when a channel is removed from the collection. */
    readonly onPortChannelRemoved: import("vscode-jsonrpc").Event<ForwardedPortChannelEventArgs>;
    /** Finds the first port in the collection that matches a predicate. */
    find(predicate: (port: ForwardedPort) => boolean): ForwardedPort | undefined;
    private tryRemoveChannel;
    toString(): string;
}
//# sourceMappingURL=forwardedPortsCollection.d.ts.map