database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-12-24 11:21:21 +03:00
Code Activity

MDEV-4422 SHOW PROCESSLIST reference to THD::db not protected against simultaneous updates

Browse Source 
protect THD::db with THD::LOCK_thd_data
This commit is contained in:
Sergei Golubchik
2013-06-12 20:29:19 +02:00
parent f722b15dc2
commit dacb3809a2
2 changed files with 12 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
sql/sql_show.cc
View File

@@ -2212,10 +2212,10 @@ void mysqld_list_processes(THD *thd,const char *user, bool verbose)
thd_info->host= thd->strdup(tmp_sctx->host_or_ip[0] ?
tmp_sctx->host_or_ip :
tmp_sctx->host ? tmp_sctx->host : "");
if ((thd_info->db=tmp->db)) // Safe test
thd_info->db=thd->strdup(thd_info->db);
thd_info->command=(int) tmp->command;
mysql_mutex_lock(&tmp->LOCK_thd_data);
if ((thd_info->db= tmp->db)) // Safe test
thd_info->db= thd->strdup(thd_info->db);
if ((mysys_var= tmp->mysys_var))
mysql_mutex_lock(&mysys_var->mutex);
thd_info->proc_info= (char*) (tmp->killed >= KILL_QUERY ?