returns a string like "v4" ("" is an unparseable version).

returns (shell, version, error).

we're going to allow different versions (as long as shelltype is the same) before we required version numbers to match exactly which was too restrictive.

rpc.

command.

command, pushed at the "end" of a command (fail-safe for no cmddone).

rpc-response.

rpc.

command.

command.

rpc.

logging packet (sent from waveshell back to server).

other.

rpc.

rpc-response.

rpc-followup.

rpc.

command.

rpc.

rpc-response.

rpc.

rpc-response.

rpc.

rpc-response.

these packets can travel either direction so it is both a RpcResponsePacketType and an RpcFollowUpPacketType.

todo: clean hanging entries in RunMap when in server mode.

SigNum gets sent to process via a signal WinSize, if set, will run TIOCSWINSZ to set size, and then send SIGWINCH.

RpcPackets initiate an Rpc.