/*---
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THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
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GOVERNMENT USE: If you are acquiring this software on behalf of the
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the software and related documentation as defined in the Federal
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---*/
/**
 * @file
 *
 * Methods that change the contents of a record.  An entire record can
 * be updated at once, or portions of the record can be updated.
 *
 * @ingroup OPERATIONS
 *
 * $Id$
 * 
 **********************************************/

#ifndef __SET_H__
#define __SET_H__

/**
  Changes the value of a record.
  @param xid the transaction id
  @param rid the recordid of the record to be changed.
  @param dat the new value of the record.
*/
int Tset(int xid, recordid rid, const void * dat);
Page * TsetWithPage(int xid, recordid rid, Page *p, const void * dat);

int TsetRaw(int xid, recordid rid, const void * dat);

stasis_operation_impl stasis_op_impl_set();
stasis_operation_impl stasis_op_impl_set_inverse();

stasis_operation_impl stasis_op_impl_set_range();
stasis_operation_impl stasis_op_impl_set_range_inverse();

/**

  Change an interval of bytes within a record.

  @todo TsetRange could be faster.  Although it uses log space
  efficiently, it performs a number of extra memcpy() calls over the
  entire record.
*/
void TsetRange(int xid, recordid rid, int offset, int length, const void * dat);

#endif