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pg_include/access/visibilitymap.h

@@ -0,0 +1,33 @@
+/*-------------------------------------------------------------------------
+ *
+ * visibilitymap.h
+ *		visibility map interface
+ *
+ *
+ * Portions Copyright (c) 2007-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/access/visibilitymap.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef VISIBILITYMAP_H
+#define VISIBILITYMAP_H
+
+#include "access/xlogdefs.h"
+#include "storage/block.h"
+#include "storage/buf.h"
+#include "utils/relcache.h"
+
+extern void visibilitymap_clear(Relation rel, BlockNumber heapBlk,
+					Buffer vmbuf);
+extern void visibilitymap_pin(Relation rel, BlockNumber heapBlk,
+				  Buffer *vmbuf);
+extern bool visibilitymap_pin_ok(BlockNumber heapBlk, Buffer vmbuf);
+extern void visibilitymap_set(Relation rel, BlockNumber heapBlk,
+				  XLogRecPtr recptr, Buffer vmbuf, TransactionId cutoff_xid);
+extern bool visibilitymap_test(Relation rel, BlockNumber heapBlk, Buffer *vmbuf);
+extern BlockNumber visibilitymap_count(Relation rel);
+extern void visibilitymap_truncate(Relation rel, BlockNumber nheapblocks);
+
+#endif   /* VISIBILITYMAP_H */