docs: function onDisconnect() {
  	var rids = Object.keys( cache ),
  		len = rids.length,
  		i;
  
  	// TODO: log
  	console.log( process.pid, 'disconnected' );
  
  	// Abort any pending requests...
  	for ( i = 0; i < len; i++ ) {
  		cache[ rids[i] ].abort();
  
  		// TODO: log
  		console.log( process.pid, 'aborting request: ', rids[ i ] );
  	}
  }