Msgio: module{	PATH:	con "/dis/lib/msgio.dis"; 	init:	fn(); 	Maxmsg: con 4096; 	# message io on a delimited connection (ssl for example)	#  messages >= Maxmsg bytes are truncated	#  errors > 64 bytes are truncated	# getstring and getbytearray return (result, error).	getstring: fn(fd: ref Sys->FD): (string, string);	putstring: fn(fd: ref Sys->FD, s: string): int;	getbytearray: fn(fd: ref Sys->FD): (array of byte, string);	putbytearray: fn(fd: ref Sys->FD, a: array of byte, n: int): int;	puterror: fn(fd: ref Sys->FD, s: string): int; 	# to send and receive messages when ssl isn't pushed	getmsg: fn(fd: ref Sys->FD): array of byte;	sendmsg: fn(fd: ref Sys->FD, buf: array of byte, n: int): int;	senderrmsg: fn(fd: ref Sys->FD, s: string): int;};