Emulate 9.6 signal behavior on older Postgres versions

PJMODOS · PJMODOS · commit 3e2109aea3ac · 2015-12-27T04:13:28.000+01:00
diff --git a/pglogical_worker.c b/pglogical_worker.c
@@ -18,6 +18,7 @@
 
 #include "storage/ipc.h"
 #include "storage/proc.h"
+#include "storage/procsignal.h"
 
 #include "pglogical_sync.h"
 #include "pglogical_worker.h"
@@ -166,6 +167,10 @@ pglogical_worker_attach(int slot)
 {
 	Assert(slot < PGLogicalCtx->total_workers);
 
+#if PG_VERSION_NUM < 90600
+	set_latch_on_sigusr1 = true;
+#endif
+
 	LWLockAcquire(PGLogicalCtx->lock, LW_EXCLUSIVE);
 
 	before_shmem_exit(pglogical_worker_on_exit, (Datum) 0);
