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Removed not used lock argument from read_log_event

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This commit is contained in:
Monty
2017-10-26 12:46:45 +03:00
parent 2e53b96a0a
commit ea37c129f9
8 changed files with 78 additions and 18 deletions
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71
sql/sql_repl.cc
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@ -875,6 +875,73 @@ get_binlog_list(MEM_ROOT *memroot)
DBUG_RETURN(current_list);
}
/*
Find the Gtid_list_log_event at the start of a binlog.
NULL for ok, non-NULL error message for error.
If ok, then the event is returned in *out_gtid_list. This can be NULL if we
get back to binlogs written by old server version without GTID support. If
so, it means we have reached the point to start from, as no GTID events can
exist in earlier binlogs.
*/
static const char *
get_gtid_list_event(IO_CACHE *cache, Gtid_list_log_event **out_gtid_list)
{
Format_description_log_event init_fdle(BINLOG_VERSION);
Format_description_log_event *fdle;
Log_event *ev;
const char *errormsg = NULL;
*out_gtid_list= NULL;
if (!(ev= Log_event::read_log_event(cache, &init_fdle,
opt_master_verify_checksum)) ||
ev->get_type_code() != FORMAT_DESCRIPTION_EVENT)
{
if (ev)
delete ev;
return "Could not read format description log event while looking for "
"GTID position in binlog";
}
fdle= static_cast<Format_description_log_event *>(ev);
for (;;)
{
Log_event_type typ;
ev= Log_event::read_log_event(cache, fdle, opt_master_verify_checksum);
if (!ev)
{
errormsg= "Could not read GTID list event while looking for GTID "
"position in binlog";
break;
}
typ= ev->get_type_code();
if (typ == GTID_LIST_EVENT)
break; /* Done, found it */
if (typ == START_ENCRYPTION_EVENT)
{
if (fdle->start_decryption((Start_encryption_log_event*) ev))
errormsg= "Could not set up decryption for binlog.";
}
delete ev;
if (typ == ROTATE_EVENT || typ == STOP_EVENT ||
typ == FORMAT_DESCRIPTION_EVENT || typ == START_ENCRYPTION_EVENT)
continue; /* Continue looking */
/* We did not find any Gtid_list_log_event, must be old binlog. */
ev= NULL;
break;
}
delete fdle;
*out_gtid_list= static_cast<Gtid_list_log_event *>(ev);
return errormsg;
}
/*
Check if every GTID requested by the slave is contained in this (or a later)
@ -3930,7 +3997,7 @@ bool mysql_show_binlog_events(THD* thd)
my_off_t scan_pos = BIN_LOG_HEADER_SIZE;
while (scan_pos < pos)
{
ev= Log_event::read_log_event(&log, (mysql_mutex_t*)0, description_event,
ev= Log_event::read_log_event(&log, description_event,
opt_master_verify_checksum);
scan_pos = my_b_tell(&log);
if (ev == NULL || !ev->is_valid())
@ -3964,7 +4031,7 @@ bool mysql_show_binlog_events(THD* thd)
my_b_seek(&log, pos);
for (event_count = 0;
(ev = Log_event::read_log_event(&log, (mysql_mutex_t*) 0,
(ev = Log_event::read_log_event(&log,
description_event,
opt_master_verify_checksum)); )
{