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/******************************************************
Purge old versions
(c) 1996 Innobase Oy
Created 3/26/1996 Heikki Tuuri
*******************************************************/
#include "trx0undo.h"
/************************************************************************
Calculates the file address of an undo log header when we have the file
address of its history list node. */
UNIV_INLINE
fil_addr_t
trx_purge_get_log_from_hist(
/*========================*/
/* out: file address of the log */
fil_addr_t node_addr) /* in: file address of the history
list node of the log */
{
node_addr.boffset -= TRX_UNDO_HISTORY_NODE;
return(node_addr);
}
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