[pgpool-committers: 2909] pgpool: Fix for [pgpool-hackers: 1253] pgpool zombie with wathdog 3.5

[Muhammad Usama]

Fix for [pgpool-hackers: 1253] pgpool zombie with wathdog 3.5

Handle the SIGCHILD signal in the watchdog process to manage the
escalation and de-escalation child processes.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=106681f4bf6a5ecb230716c33918a0d76c4cdcfc

Modified Files
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src/watchdog/watchdog.c | 216 ++++++++++++++++++++++++++++++++++--------------
1 file changed, 154 insertions(+), 62 deletions(-)