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authorunknown <serg@janus.mylan>2007-07-04 22:27:58 +0200
committerunknown <serg@janus.mylan>2007-07-04 22:27:58 +0200
commitfcdc76c28952608524d6e5a388bc7b04ad8de09f (patch)
treee561d554668cb480f1eb87c4430151f7cce55469 /storage/csv
parent329ba0d46237d606664a0df8eb94c8d12621d237 (diff)
downloadmariadb-git-fcdc76c28952608524d6e5a388bc7b04ad8de09f.tar.gz
in mysql_unlock_tables(), do thr_unlock() AFTER external_unlock().
it means, {update,restore}_status() should be called in external_lock, not in thr_unlock. Only affects storage engines that support TL_WRITE_CONCURRENT.
Diffstat (limited to 'storage/csv')
-rw-r--r--storage/csv/ha_tina.cc12
-rw-r--r--storage/csv/ha_tina.h4
2 files changed, 14 insertions, 2 deletions
diff --git a/storage/csv/ha_tina.cc b/storage/csv/ha_tina.cc
index afe8e5f1b27..6dacc8f2663 100644
--- a/storage/csv/ha_tina.cc
+++ b/storage/csv/ha_tina.cc
@@ -441,7 +441,7 @@ ha_tina::ha_tina(handlerton *hton, TABLE_SHARE *table_arg)
*/
current_position(0), next_position(0), local_saved_data_file_length(0),
file_buff(0), chain_alloced(0), chain_size(DEFAULT_CHAIN_LENGTH),
- records_is_known(0)
+ records_is_known(0), curr_lock_type(F_UNLCK)
{
/* Set our original buffers from pre-allocated memory */
buffer.set((char*)byte_buffer, IO_SIZE, system_charset_info);
@@ -1394,6 +1394,14 @@ int ha_tina::delete_all_rows()
DBUG_RETURN(rc);
}
+int ha_tina::external_lock(THD *thd __attribute__((unused)), int lock_type)
+{
+ if (lock_type==F_UNLCK && curr_lock_type == F_WRLCK)
+ update_status();
+ curr_lock_type= lock_type;
+ return 0;
+}
+
/*
Called by the database to lock the table. Keep in mind that this
is an internal lock.
@@ -1408,7 +1416,7 @@ THR_LOCK_DATA **ha_tina::store_lock(THD *thd,
return to;
}
-/*
+/*
Create a table. You do not want to leave the table open after a call to
this (the database will call ::open() if it needs to).
*/
diff --git a/storage/csv/ha_tina.h b/storage/csv/ha_tina.h
index 0c667237c0f..e52e9cd28e5 100644
--- a/storage/csv/ha_tina.h
+++ b/storage/csv/ha_tina.h
@@ -81,6 +81,8 @@ class ha_tina: public handler
bool records_is_known;
private:
+ int curr_lock_type;
+
bool get_write_pos(off_t *end_pos, tina_set *closest_hole);
int open_update_temp_file_if_needed();
int init_tina_writer();
@@ -153,6 +155,8 @@ public:
bool check_if_incompatible_data(HA_CREATE_INFO *info,
uint table_changes);
+ int external_lock(THD *thd, int lock_type);
+
THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
enum thr_lock_type lock_type);