`tsocketpipes`
pl	ro	optionsreader
pl	ro	overloadsleepus
pl	ro	oninputavailable
pl	ro	oncommbroken

`tcustomsocketpipes`

`tcustomcommpipes`
		handle
	ro	rx
	ro	tx
		rxtimeoutms
		txtimeoutms
		overloadsleepus
		optionsreader
		onbeforeconnect
		onafterconnect
		onbeforedisconnect
		onafterdisconnect
		oninputavailable

`tlinkedpersistent`

`tnullinterfacedpersistent`

`tvirtualpersistent`

`tpersistent`