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MDEV-7728 - Improve xid cache scalability by using lock-free hash

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Spider support for new xid cache implementation.
This commit is contained in:
Sergey Vojtovich
2015-03-16 18:54:45 +04:00
parent 6bd24deab4
commit 4cb86b79dd
2 changed files with 19 additions and 2 deletions
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6
storage/spider/spd_table.cc
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@@ -41,11 +41,13 @@
#include "spd_malloc.h"
ulong *spd_db_att_thread_id;
#if MYSQL_VERSION_ID < 100103
#ifdef XID_CACHE_IS_SPLITTED
uint *spd_db_att_xid_cache_split_num;
#endif
pthread_mutex_t *spd_db_att_LOCK_xid_cache;
HASH *spd_db_att_xid_cache;
#endif
struct charset_info_st *spd_charset_utf8_bin;
const char **spd_defaults_extra_file;
const char **spd_defaults_file;
@@ -6263,7 +6265,7 @@ int spider_db_init(
"?LOCK_xid_cache@@3PAUst_mysql_mutex@@A"));
spd_db_att_xid_cache = *((HASH **)
GetProcAddress(current_module, "?xid_cache@@3PAUst_hash@@A"));
#else
#elif MYSQL_VERSION_ID < 100103
spd_db_att_LOCK_xid_cache = (pthread_mutex_t *)
#if MYSQL_VERSION_ID < 50500
GetProcAddress(current_module,
@@ -6289,7 +6291,7 @@ int spider_db_init(
spd_db_att_xid_cache_split_num = &opt_xid_cache_split_num;
spd_db_att_LOCK_xid_cache = LOCK_xid_cache;
spd_db_att_xid_cache = xid_cache;
#else
#elif MYSQL_VERSION_ID < 100103
spd_db_att_LOCK_xid_cache = &LOCK_xid_cache;
spd_db_att_xid_cache = &xid_cache;
#endif