[pgpool-committers: 10308] pgpool: Fix pool_signal.

[Tatsuo Ishii]

Fix pool_signal.

Previously pool_signal did not set SA_RESTART flag.  Thus any system
calls interrupted by a signal does not restart. Some of our code are
prepared so that they restart if a system call is interrupted by a
signal. But not sure all places are prepared too. So add the
flag. Note, PostgreSQL always uses the flag.

Branch
------
V4_2_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=d3adcacc5259a2002f65bcaa3c931ba14eb95f6a

Modified Files
--------------
src/utils/pool_signal.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)