ha_ndb_index_stat.h

/*
   Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

/* provides declarations only to index_stat.cc */

extern struct st_ndb_status g_ndb_status;

extern pthread_mutex_t ndbcluster_mutex;

extern pthread_t ndb_index_stat_thread;
extern pthread_cond_t COND_ndb_index_stat_thread;
extern pthread_mutex_t LOCK_ndb_index_stat_thread;

/* protect entry lists where needed */
extern pthread_mutex_t ndb_index_stat_list_mutex;

/* protect and signal changes in stats entries */
extern pthread_mutex_t ndb_index_stat_stat_mutex;
extern pthread_cond_t ndb_index_stat_stat_cond;

/* these have to live in ha_ndbcluster.cc */
extern bool ndb_index_stat_get_enable(THD *thd);
extern long g_ndb_status_index_stat_cache_query;
extern long g_ndb_status_index_stat_cache_clean;

void
compute_index_bounds(NdbIndexScanOperation::IndexBound &bound,
                     const KEY *key_info,
                     const key_range *start_key, const key_range *end_key,
                     int from);

/* error codes local to ha_ndb */

/* stats thread is not open for requests (should not happen) */
#define Ndb_index_stat_error_NOT_ALLOW          9001

/* stats entry for existing index not found (should not happen) */
#define Ndb_index_stat_error_NOT_FOUND          9002

/* request on stats entry with recent error was ignored */
#define Ndb_index_stat_error_HAS_ERROR          9003