Postgres Pro
Downloads
Home   >   mailing lists

pgsql: Avoid extra system calls to block SIGPIPE if the platform - Mailing list pgsql-committers

From tgl@postgresql.org (Tom Lane)
Subject pgsql: Avoid extra system calls to block SIGPIPE if the platform
Date
Msg-id 20090724175832.00C9C75331E@cvs.postgresql.org
Whole thread Raw
List pgsql-committers
Tree view 
Log Message:
-----------
Avoid extra system calls to block SIGPIPE if the platform provides either
sockopt(SO_NOSIGPIPE) or the MSG_NOSIGNAL flag to send().

We assume these features are available if (1) the symbol is defined at
compile time and (2) the kernel doesn't reject the call at runtime.
It might turn out that there are some platforms where (1) and (2) are
true and yet the signal isn't really blocked, in which case applications
would die on server crash.  If that sort of thing gets reported, then
we'll have to add additional defenses of some kind.

Jeremy Kerr

Modified Files:
--------------
    pgsql/src/interfaces/libpq:
        fe-connect.c (r1.375 -> r1.376)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-connect.c?r1=1.375&r2=1.376)
        fe-secure.c (r1.127 -> r1.128)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-secure.c?r1=1.127&r2=1.128)
        libpq-int.h (r1.143 -> r1.144)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/libpq-int.h?r1=1.143&r2=1.144)

pgsql-committers by date:

Previous
From: tgl@postgresql.org (Tom Lane)
Date:
Subject: pgsql: Add commentary about Cygwin's broken erand48, per report from
Next
From: petere@postgresql.org (Peter Eisentraut)
Date:
Subject: pgsql: Document \dg+ and \du+ The fact that \dg and \du take the +