DBUS protocol on unix pipes?

[nf2]

Hi,

Could DBUS be used on unix stdin/stdout pipes?

I was thinking about a simple out-of-process "component system", which 
uses the DBUS protocol to talk to child processes directly via their 
stdin/stdout pipes (without sockets/daemons).

The basic idea would be to add an optional interface based on the DBUS 
protocol to command-line utilities (a "--dbus-component" or 
"--talk-dbus" switch).

(The purpose of such components could be providing a generic 
(cross-desktop) interface to file-dialogs, vfs-libraries, printing for 
3rd party applications)

The second question is about "streaming" large amounts of file-data with 
DBUS-one-way messages (signals). There might be a problem with flooding 
the outgoing message queue in an async system, when the receiving side 
is not picking up messages fast enough. Is there an easy way to check 
the length of this queue?

Thanks,
Norbert