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Use asynchronous connect API in libpqwalreceiver

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This makes the connection attempt from CREATE SUBSCRIPTION and from
WalReceiver interruptable by the user in case the libpq connection is
hanging.  The previous coding required immediate shutdown (SIGQUIT) of
PostgreSQL in that situation.

From: Petr Jelinek <petr.jelinek@2ndquadrant.com>
Tested-by: Thom Brown <thom@linux.com>
This commit is contained in:
Peter Eisentraut
2017-03-03 09:07:22 -05:00
parent 9eb344faf5
commit 1e8a850094
3 changed files with 50 additions and 5 deletions
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4
src/backend/postmaster/pgstat.c
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@@ -3340,8 +3340,8 @@ pgstat_get_wait_client(WaitEventClient w)
case WAIT_EVENT_WAL_RECEIVER_WAIT_START:
event_name = "WalReceiverWaitStart";
break;
case WAIT_EVENT_LIBPQWALRECEIVER_READ:
event_name = "LibPQWalReceiverRead";
case WAIT_EVENT_LIBPQWALRECEIVER:
event_name = "LibPQWalReceiver";
break;
case WAIT_EVENT_WAL_SENDER_WAIT_WAL:
event_name = "WalSenderWaitForWAL";