start the path to rust

dist_ts/mail/delivery/smtpclient/connection-manager.d.ts

@@ -0,0 +1,48 @@
+/**
+ * SMTP Client Connection Manager
+ * Connection pooling and lifecycle management
+ */
+import { EventEmitter } from 'node:events';
+import type { ISmtpClientOptions, ISmtpConnection, IConnectionPoolStatus } from './interfaces.js';
+export declare class ConnectionManager extends EventEmitter {
+    private options;
+    private connections;
+    private pendingConnections;
+    private idleTimeout;
+    constructor(options: ISmtpClientOptions);
+    /**
+     * Get or create a connection
+     */
+    getConnection(): Promise<ISmtpConnection>;
+    /**
+     * Create a new connection
+     */
+    createConnection(): Promise<ISmtpConnection>;
+    /**
+     * Release a connection back to the pool or close it
+     */
+    releaseConnection(connection: ISmtpConnection): void;
+    /**
+     * Close a specific connection
+     */
+    closeConnection(connection: ISmtpConnection): void;
+    /**
+     * Close all connections
+     */
+    closeAllConnections(): void;
+    /**
+     * Get connection pool status
+     */
+    getPoolStatus(): IConnectionPoolStatus;
+    /**
+     * Update connection activity timestamp
+     */
+    updateActivity(connection: ISmtpConnection): void;
+    private establishSocket;
+    private setupSocketHandlers;
+    private findIdleConnection;
+    private shouldReuseConnection;
+    private getActiveConnectionCount;
+    private getConnectionId;
+    private setupIdleCleanup;
+}