Method close

src/ws-framing.ts:58–78

(code = 1000, reason = "")

  }

  close(code = 1000, reason = ""): void {
    if (this.closed) return;
    this.closed = true;

    const reasonBuf = Buffer.from(reason, "utf-8");
    const payload = Buffer.alloc(2 + reasonBuf.length);
    payload.writeUInt16BE(code, 0);
    reasonBuf.copy(payload, 2);
    this.writeFrame(OP_CLOSE, payload);

    // Give the client a moment to receive the close frame before destroying.
    // If writeFrame failed (socket already destroyed), this is a no-op.
    setTimeout(() => {
      if (!this.socket.destroyed) {
        this.socket.destroy();
      }
      // Emit close event for server-initiated closes so listeners
      // (e.g. activeConnections.delete) always fire.
      this.emit("close", code, reason);
    }, 100);
  }

  destroy(): void {
    if (this.closed) return;