1 files changed, 31 insertions, 0 deletions
diff --git a/src/include/executor/tqueue.h b/src/include/executor/tqueue.h
new file mode 100644
index 00000000000..6f8eb73c9ae
--- /dev/null
+++ b/src/include/executor/tqueue.h
@@ -0,0 +1,31 @@
+/*-------------------------------------------------------------------------
+ *
+ * tqueue.h
+ *	  Use shm_mq to send & receive tuples between parallel backends
+ *
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/executor/tqueue.h
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#ifndef TQUEUE_H
+#define TQUEUE_H
+
+#include "storage/shm_mq.h"
+#include "tcop/dest.h"
+
+/* Use this to send tuples to a shm_mq. */
+extern DestReceiver *CreateTupleQueueDestReceiver(shm_mq_handle *handle);
+
+/* Use these to receive tuples from a shm_mq. */
+typedef struct TupleQueueFunnel TupleQueueFunnel;
+extern TupleQueueFunnel *CreateTupleQueueFunnel(void);
+extern void DestroyTupleQueueFunnel(TupleQueueFunnel *funnel);
+extern void RegisterTupleQueueOnFunnel(TupleQueueFunnel *, shm_mq_handle *);
+extern HeapTuple TupleQueueFunnelNext(TupleQueueFunnel *, bool nowait,
+					 bool *done);
+
+#endif   /* TQUEUE_H */