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ha_innobase.cc, ha_innobase.h, handler.h, handler.cc, sql_class.h, log.cc:

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Tell table handlers where a binlog segment for a trx ends
This commit is contained in:
heikki@donna.mysql.fi
2002-01-22 22:57:56 +02:00
parent 5c1da27358
commit d927ff75dc
6 changed files with 90 additions and 3 deletions
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40
sql/handler.cc
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@@ -257,6 +257,44 @@ int ha_autocommit_or_rollback(THD *thd, int error)
DBUG_RETURN(error);
}
/* This function is called when MySQL writes the log segment of a transaction
to the binlog. It is called when the LOCK_log mutex is reserved. Here we
communicate to transactional table handlers whta binlog position corresponds
to the current transaction. The handler can store it and in recovery print
to the user, so that the user knows from what position in the binlog to
start possible roll-forward, for example, if the crashed server was a slave
in replication. This function also calls the commit of the table handler,
because the order of trasnactions in the log of the table handler must be
the same as in the binlog. */
int ha_report_binlog_offset_and_commit(
THD *thd, /* in: user thread */
char *log_file_name, /* in: latest binlog file name */
my_off_t end_offset) /* in: the offset in the binlog file
up to which we wrote */
{
THD_TRANS *trans;
int error = 0;
trans = &thd->transaction.all;
#ifdef HAVE_INNOBASE_DB
if (trans->innobase_tid)
{
if ((error=innobase_report_binlog_offset_and_commit(thd,
trans->innobase_tid,
log_file_name,
end_offset)))
{
my_error(ER_ERROR_DURING_COMMIT, MYF(0), error);
error=1;
}
trans->innodb_active_trans=0;
}
#endif
return error;
}
int ha_commit_trans(THD *thd, THD_TRANS* trans)
{
@@ -269,7 +307,7 @@ int ha_commit_trans(THD *thd, THD_TRANS* trans)
if (trans == &thd->transaction.all && mysql_bin_log.is_open() &&
my_b_tell(&thd->transaction.trans_log))
{
mysql_bin_log.write(&thd->transaction.trans_log);
mysql_bin_log.write(thd, &thd->transaction.trans_log);
reinit_io_cache(&thd->transaction.trans_log,
WRITE_CACHE, (my_off_t) 0, 0, 1);
thd->transaction.trans_log.end_of_file= max_binlog_cache_size;