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bug#5723: 23.1.94; make-network-process and emacs hangs


From: YAMAMOTO Mitsuharu
Subject: bug#5723: 23.1.94; make-network-process and emacs hangs
Date: Fri, 19 Mar 2010 19:21:43 +0900
User-agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shij┼Ź) APEL/10.6 Emacs/22.3 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI)

>>>>> On Fri, 19 Mar 2010 07:41:54 +0100, Helmut Eller <address@hidden> said:

>> The current code closes the socket and call `connect' again if
>> (blocking) `connect' is interrupted by a signal.
>> 
>> 2004-11-09  Kim F. Storm  <address@hidden>
>> 
>> * process.c (Fmake_network_process): Remove kludge for interrupted
>> connects on BSD.  If connect is interrupted, just close socket and
>> start over rather than sleeping and retry with same socket.
>> 
>> (http://cvs.savannah.gnu.org/viewvc/emacs/src/process.c?root=emacs&r1=1.443&r2=1.444)
>> 
>> UNIX Network Programming (Richard Stevens et al.) says "What we must
>> do in this scenario is call /select/" (Section 16,5, Volume 1 third
>> edition).
(snip)
>> Perhaps we should try this, not just removing `turn_on_atimers' calls.

> I had reported that already in 
> http://debbugs.gnu.org/cgi/bugreport.cgi?bug=5173
> but was silently ignored.

Oh, I didn't notice that.

I think the essential part of the suggested code, as well as the
removal of turn_on_atimers calls, should go to the trunk for further
testing on various platforms.  Maintainers, what do you think?

                                     YAMAMOTO Mitsuharu
                                address@hidden






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