[Pgpool-committers] pgpool - pgpool-II: Check frontend connection while waiting for response

[User T-ishii]

Log Message:
-----------
Check frontend connection while waiting for response from backend for
extended protocol (Execute()). Replace synchronize() with
wait_for_query_response().
Also tweak pool.h so that it includes cancel packet's mazic proto number.

Modified Files:
--------------
    pgpool-II:
        pool.h (r1.38 -> r1.39)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool.h?r1=1.38&r2=1.39)
        pool_proto_modules.c (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_proto_modules.c?r1=1.10&r2=1.11)