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Implement WL#5502 Remove dead 5.0 class Sensitive_cursor.

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Remove dead and unused code.
Update to reflect the code review requests.

include/thr_lock.h:
  Remove declarations for THR_LOCK_OWNER,
  added along with the patch for sensitive cursors.
mysys/thr_lock.c:
  Remove support for multiple thr_lock requestors
  per THD.
sql/lock.cc:
  Revert the patch that added support for sensitive cursors.
sql/sp_rcontext.cc:
  Updated the use of mysql_open_cursor().
sql/sql_class.cc:
  Move the instance of Server_side_cursor
  from class Prepared_statement to class Statement.
sql/sql_class.h:
  Move the isntance of Server_side_cursor
  from class Prepared_statement to class
  Statement.
  Remove multiple lock_ids of thr_lock.
sql/sql_cursor.cc:
  Remove Sensitive_cursor implementation.
sql/sql_cursor.h:
  Remove declarations for sensitive cursors.
sql/sql_prepare.cc:
  Move the declaration of instance of Server_side_cursor
  from class Statement to class Prepared_statement, 
  where it's used.
sql/sql_select.cc:
  Remove sensitive cursor support.
sql/sql_select.h:
  Remove sensitive cursor support.
sql/sql_union.cc:
  Remove sensitive cursor support.
This commit is contained in:
Konstantin Osipov
2010-07-27 16:42:36 +04:00
parent 36290c0923
commit 740c0d3a87
12 changed files with 64 additions and 522 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
include/thr_lock.h
View File

@@ -89,23 +89,11 @@ typedef struct st_thr_lock_info
{
pthread_t thread;
my_thread_id thread_id;
ulong n_cursors;
} THR_LOCK_INFO;
/*
Lock owner identifier. Globally identifies the lock owner within the
thread and among all the threads. The address of an instance of this
structure is used as id.
*/
typedef struct st_thr_lock_owner
{
THR_LOCK_INFO *info;
} THR_LOCK_OWNER;
typedef struct st_thr_lock_data {
THR_LOCK_OWNER *owner;
THR_LOCK_INFO *owner;
struct st_thr_lock_data *next,**prev;
struct st_thr_lock *lock;
mysql_cond_t *cond;
@@ -141,19 +129,18 @@ extern LIST *thr_lock_thread_list;
extern mysql_mutex_t THR_LOCK_lock;
my_bool init_thr_lock(void); /* Must be called once/thread */
#define thr_lock_owner_init(owner, info_arg) (owner)->info= (info_arg)
void thr_lock_info_init(THR_LOCK_INFO *info);
void thr_lock_init(THR_LOCK *lock);
void thr_lock_delete(THR_LOCK *lock);
void thr_lock_data_init(THR_LOCK *lock,THR_LOCK_DATA *data,
void *status_param);
enum enum_thr_lock_result thr_lock(THR_LOCK_DATA *data,
THR_LOCK_OWNER *owner,
THR_LOCK_INFO *owner,
enum thr_lock_type lock_type,
ulong lock_wait_timeout);
void thr_unlock(THR_LOCK_DATA *data);
enum enum_thr_lock_result thr_multi_lock(THR_LOCK_DATA **data,
uint count, THR_LOCK_OWNER *owner,
uint count, THR_LOCK_INFO *owner,
ulong lock_wait_timeout);
void thr_multi_unlock(THR_LOCK_DATA **data,uint count);
void