1 files changed, 35 insertions, 0 deletions
diff --git a/src/include/fe_utils/parallel_slot.h b/src/include/fe_utils/parallel_slot.h
new file mode 100644
index 00000000000..99eeb3328d6
--- /dev/null
+++ b/src/include/fe_utils/parallel_slot.h
@@ -0,0 +1,35 @@
+/*-------------------------------------------------------------------------
+ *
+ *	parallel_slot.h
+ *		Parallel support for bin/scripts/
+ *
+ *	Copyright (c) 2003-2021, PostgreSQL Global Development Group
+ *
+ *	src/include/fe_utils/parallel_slot.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PARALLEL_SLOT_H
+#define PARALLEL_SLOT_H
+
+#include "fe_utils/connect_utils.h"
+#include "libpq-fe.h"
+
+typedef struct ParallelSlot
+{
+	PGconn	   *connection;		/* One connection */
+	bool		isFree;			/* Is it known to be idle? */
+} ParallelSlot;
+
+extern ParallelSlot *ParallelSlotsGetIdle(ParallelSlot *slots, int numslots);
+
+extern ParallelSlot *ParallelSlotsSetup(const ConnParams *cparams,
+										const char *progname, bool echo,
+										PGconn *conn, int numslots);
+
+extern void ParallelSlotsTerminate(ParallelSlot *slots, int numslots);
+
+extern bool ParallelSlotsWaitCompletion(ParallelSlot *slots, int numslots);
+
+
+#endif							/* PARALLEL_SLOT_H */