1 files changed, 56 insertions, 0 deletions
diff --git a/src/backend/utils/inval.h b/src/backend/utils/inval.h
new file mode 100644
index 00000000000..72a664395ae
--- /dev/null
+++ b/src/backend/utils/inval.h
@@ -0,0 +1,56 @@
+/*-------------------------------------------------------------------------
+ *
+ * inval.h--
+ *    POSTGRES cache invalidation dispatcher definitions.
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: inval.h,v 1.1.1.1 1996/07/09 06:22:02 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef	INVAL_H
+#define INVAL_H
+
+#include "postgres.h"
+#include "access/htup.h"
+#include "utils/rel.h"
+
+extern void DiscardInvalid(void);
+
+extern void RegisterInvalid(bool send);
+
+extern void SetRefreshWhenInvalidate(bool on);
+
+extern void RelationInvalidateHeapTuple(Relation relation, HeapTuple tuple);
+
+/*
+ * POSTGRES local cache invalidation definitions. (originates from linval.h)
+ */
+typedef struct InvalidationUserData {
+	struct InvalidationUserData	*dataP[1];	/* VARIABLE LENGTH */
+} InvalidationUserData;	/* VARIABLE LENGTH STRUCTURE */
+
+typedef struct InvalidationEntryData {
+	InvalidationUserData	*nextP;
+	InvalidationUserData	userData;	/* VARIABLE LENGTH ARRAY */
+} InvalidationEntryData;	/* VARIABLE LENGTH STRUCTURE */
+
+typedef Pointer InvalidationEntry;
+
+typedef InvalidationEntry	LocalInvalid;
+
+#define EmptyLocalInvalid	NULL
+
+extern InvalidationEntry InvalidationEntryAllocate(uint16 size);
+
+extern LocalInvalid LocalInvalidRegister(LocalInvalid invalid,
+					 InvalidationEntry entry);
+
+extern void LocalInvalidInvalidate(LocalInvalid invalid, void (*function)());
+
+extern void getmyrelids(void);
+
+#endif	/* INVAL_H */
+