FreeTDS Development Group

[Frediano Ziglio <freddyz77 AT tin.it>]

Some time ago I proposed to add a net.c file to separate low-level
network handling. This to isolate relate low-level stuff from
read.c/write.c in a single file and to support in easier way named-pipe.
Named-pipe are still a TODO however there are many reason to isolate
this code:
- avoid strange macro such WRITESOCKET/READSOCKET, just some functions.
- use some platform-dependent optimizations (MSG_NOSIGNAL, MSG_DONTWAIT,
TCP_CORK and whatever)

I noted a difference in write.c and read.c. In write.c we disable
SIGPIPE while in read.c not... This problem can be the cause of strange
Roland Bole problem?? It seem a bug to me... I fixed the problem for
Linux but I think should be fixed for all platforms...

Another issue related to sockets is no-blocking. We always call a select
and then send/write/recv/read however IMHO is better to use no-blocking
sockets and call select only to wait data, just to reduce syscalls...

freddy77