Commit a29829b7 authored by unknown's avatar unknown
Browse files

Merge joreland@bk-internal.mysql.com:/home/bk/mysql-4.1 

into  mysql.com:/home/jonas/src/mysql-4.1-push
parents 46c627f3 31ebc6ef

include/thr_lock.h

+1 −1
Original line number Diff line number Diff line
@@ -111,7 +111,7 @@ void thr_unlock(THR_LOCK_DATA *data); 
int thr_multi_lock(THR_LOCK_DATA **data,uint count);

void thr_multi_unlock(THR_LOCK_DATA **data,uint count);

void thr_abort_locks(THR_LOCK *lock);

void thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread);

bool thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread);

void thr_print_locks(void);		/* For debugging */

my_bool thr_upgrade_write_delay_lock(THR_LOCK_DATA *data);

my_bool thr_reschedule_write_lock(THR_LOCK_DATA *data);

mysys/thr_lock.c

+5 −2
Original line number Diff line number Diff line
@@ -966,9 +966,10 @@ void thr_abort_locks(THR_LOCK *lock) 
  This is used to abort all locks for a specific thread

*/



void thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread)

bool thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread)

{

  THR_LOCK_DATA *data;

  bool found= FALSE;

  DBUG_ENTER("thr_abort_locks_for_thread");



  pthread_mutex_lock(&lock->mutex);
@@ -978,6 +979,7 @@ void thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread) 
    {

      DBUG_PRINT("info",("Aborting read-wait lock"));

      data->type= TL_UNLOCK;			/* Mark killed */

      found= TRUE;

      pthread_cond_signal(data->cond);

      data->cond= 0;				/* Removed from list */
@@ -993,6 +995,7 @@ void thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread) 
    {

      DBUG_PRINT("info",("Aborting write-wait lock"));

      data->type= TL_UNLOCK;

      found= TRUE;

      pthread_cond_signal(data->cond);

      data->cond= 0;
@@ -1003,7 +1006,7 @@ void thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread) 
    }

  }

  pthread_mutex_unlock(&lock->mutex);

  DBUG_VOID_RETURN;

  DBUG_RETURN(found);

}

sql/handler.cc

+2 −0
Original line number Diff line number Diff line
@@ -1514,6 +1514,8 @@ int ha_discover(THD *thd, const char *db, const char *name, 
  int error= -1; // Table does not exist in any handler

  DBUG_ENTER("ha_discover");

  DBUG_PRINT("enter", ("db: %s, name: %s", db, name));

  if (is_prefix(name,tmp_file_prefix)) /* skip temporary tables */

    DBUG_RETURN(error);

#ifdef HAVE_NDBCLUSTER_DB

  if (have_ndbcluster == SHOW_OPTION_YES)

    error= ndbcluster_discover(thd, db, name, frmblob, frmlen);

sql/lock.cc

+17 −6
Original line number Diff line number Diff line
@@ -337,20 +337,25 @@ void mysql_lock_abort(THD *thd, TABLE *table) 


/* Abort one thread / table combination */



void mysql_lock_abort_for_thread(THD *thd, TABLE *table)

bool mysql_lock_abort_for_thread(THD *thd, TABLE *table)

{

  MYSQL_LOCK *locked;

  TABLE *write_lock_used;

  bool result= FALSE;

  DBUG_ENTER("mysql_lock_abort_for_thread");



  if ((locked = get_lock_data(thd,&table,1,1,&write_lock_used)))

  {

    for (uint i=0; i < locked->lock_count; i++)

      thr_abort_locks_for_thread(locked->locks[i]->lock,

    {

      bool found;

      found= thr_abort_locks_for_thread(locked->locks[i]->lock,

	         			 table->in_use->real_id);

      result|= found;

    }

    my_free((gptr) locked,MYF(0));

  }

  DBUG_VOID_RETURN;

  DBUG_RETURN(result);

}
@@ -578,8 +583,14 @@ int lock_table_name(THD *thd, TABLE_LIST *table_list) 
    my_free((gptr) table,MYF(0));

    DBUG_RETURN(-1);

  }

  if (remove_table_from_cache(thd, db, table_list->real_name))

  

  {

    if (remove_table_from_cache(thd, db,

                                table_list->real_name, RTFC_NO_FLAG))

    {

      DBUG_RETURN(1);				// Table is in use

    }

  }

  DBUG_RETURN(0);

}

sql/mysql_priv.h

+6 −2
Original line number Diff line number Diff line
@@ -763,8 +763,12 @@ bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db, 
			    const char *table_name);

void remove_db_from_cache(const char *db);

void flush_tables();

#define RTFC_NO_FLAG                0x0000

#define RTFC_OWNED_BY_THD_FLAG      0x0001

#define RTFC_WAIT_OTHER_THREAD_FLAG 0x0002

#define RTFC_CHECK_KILLED_FLAG      0x0004

bool remove_table_from_cache(THD *thd, const char *db, const char *table,

			     bool return_if_owned_by_thd=0);

                             uint flags);

bool close_cached_tables(THD *thd, bool wait_for_refresh, TABLE_LIST *tables);

void copy_field_from_tmp_record(Field *field,int offset);

int fill_record(List<Item> &fields,List<Item> &values, bool ignore_errors);
@@ -1000,7 +1004,7 @@ void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock); 
void mysql_unlock_some_tables(THD *thd, TABLE **table,uint count);

void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table);

void mysql_lock_abort(THD *thd, TABLE *table);

void mysql_lock_abort_for_thread(THD *thd, TABLE *table);

bool mysql_lock_abort_for_thread(THD *thd, TABLE *table);

MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);

bool lock_global_read_lock(THD *thd);

void unlock_global_read_lock(THD *thd);