dbus-sysdeps-unix.h

[Havoc Pennington]

Hi,

For people working on the Windows port - I think it's important not to 
take UNIX emulation too far. For example, the unix: addresses should 
fail on Windows, i.e. don't try to emulate 
dbus_(connect,listen)_unix_socket on Windows. Instead, a 
Windows-specific appropriate mechanism should be used, whatever it is. 
Maybe Windows always uses tcp: for now.

Essentially, any emulate-unix-on-windows hacks should stay internal and 
not leak out into config files, bus addresses, or the public API.

The public functions with _unix in the name should always return an 
error on Windows, they should not do emulation stuff.

One thing I think might help with this is a dbus-sysdeps-unix.h header 
that has the stuff from dbus-sysdeps.h which is truly unix-specific, 
like the unix socket functions. Then be sure this header is not included 
on Windows - perhaps put a #error "not on windows" in there if it is.

I think in an ideal world, a fair bit of dbus-sysdeps.h is either in
dbus-sysdeps-unix.h or gets modified to be less unix-like, e.g. 
returning a DBusError instead of setting errno, etc.

To start though, a few of the major items like unix sockets might make 
sense in dbus-sysdeps-unix.h.

Havoc