Hi,
I've seen mention both recently and in 11/1999 on this list
regarding Apache 2.0 and support for UDP.
I too am interested in UDP support within Apache 2.0. Ideally, I'd like a
server that supported both UDP and TCP simultaneously, but if UDP support
were a configurable option (either UDP or TCP), that would be okay.
I've looked through the code, and from what I can figure
out, it looks like the you would have to alter the following
code (assuming worker mpm on Linux):
1. in alloc_listener (server/listen.c), there needs to be
support added for SOCK_DGRAM in the call to apr_socket_create.
2. in make_sock (server/listen.c), for UDP sockets, you'd
have to skip doing the apr_listen() call.
3. you've have to compile Apache with TCP_NODELAY undef'ed.
4. in server/core.c, there needs to be a parallel UDP'ized
writev_it_all() that does apr_sendto's instead of apr_sendv.
There would also need to be an abstraction above these functions
that one of these functions depending upon TCP or UDP socket.
5. instead of going to apr_accept() (in
srclib/apr/network_io/unix/sockets.c)
from within server/mpm/worker.c, you'd have to go to a UDP version
that just does a recvfrom(), instead of an accept.
This seems like touching code in a lot of disparate places.
Does anyone have an implementation that supports UDP that's cleaner than
this?
Or can anyone offer any tips/pointers for adding UDP support?
Thanks,
Tony
[EMAIL PROTECTED]
