init

db_include/storage/checksum.h

@@ -0,0 +1,24 @@
+/*-------------------------------------------------------------------------
+ *
+ * checksum.h
+ *	  Checksum implementation for data pages.
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/storage/checksum.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef CHECKSUM_H
+#define CHECKSUM_H
+
+#include "storage/block.h"
+
+/*
+ * Compute the checksum for a Postgres page.  The page must be aligned on a
+ * 4-byte boundary.
+ */
+extern uint16 pg_checksum_page(char *page, BlockNumber blkno);
+
+#endif							/* CHECKSUM_H */