granicus.if.org Git - postgresql/blob - src/include/storage/checksum.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * checksum.h
   4  *        Checksum implementation for data pages.
   5  *
   6  * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * src/include/storage/checksum.h
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13 #ifndef CHECKSUM_H
  14 #define CHECKSUM_H
  15
  16 #include "storage/block.h"
  17
  18 /*
  19  * Compute the checksum for a Postgres page.  The page must be aligned on a
  20  * 4-byte boundary.
  21  */
  22 extern uint16 pg_checksum_page(char *page, BlockNumber blkno);
  23
  24 #endif   /* CHECKSUM_H */