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Filename : wsrep_applier.h
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/* Copyright 2013-2019 Codership Oy <http://www.codership.com>

   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 Street, Fifth Floor, Boston, MA 02110-1335 USA */

#ifndef WSREP_APPLIER_H
#define WSREP_APPLIER_H

#include "sql_class.h" // THD class
#include "rpl_rli.h"   // Relay_log_info
#include "log_event.h" // Format_description_log_event

int wsrep_apply_events(THD*        thd,
                       Relay_log_info* rli,
                       const void* events_buf,
                       size_t      buf_len);

/* Applier error codes, when nothing better is available. */
#define WSREP_RET_SUCCESS      0 // Success
#define WSREP_ERR_GENERIC      1 // When in doubt (MySQL default error code)
#define WSREP_ERR_BAD_EVENT    2 // Can't parse event
#define WSREP_ERR_NOT_FOUND    3 // Key. table, schema not found
#define WSREP_ERR_EXISTS       4 // Key, table, schema already exists
#define WSREP_ERR_WRONG_TYPE   5 // Incompatible data type
#define WSREP_ERR_FAILED       6 // Operation failed for some internal reason
#define WSREP_ERR_ABORTED      7 // Operation was aborted externally

/* Loops over THD diagnostic area and concatenates all error messages
 * and error codes to a single continuous buffer to create a unique
 * but consistent failure signature which provider can use for voting
 * between the nodes in the cluster.
 *
 * @param thd         THD context
 * @param dst         buffer to store the signature
 * @param include_msg whether to use MySQL error message in addition to
 *                    MySQL error code. Note that in the case of a TOI
 *                    operation the message may be not consistent between
 *                    the nodes e.g. due to a different client locale setting
 *                    and should be omitted */
void wsrep_store_error(const THD*             thd,
                       wsrep::mutable_buffer& buf,
                       bool                   include_msg);

class Format_description_log_event;
void wsrep_set_apply_format(THD*, Format_description_log_event*);
Format_description_log_event* wsrep_get_apply_format(THD* thd);

#endif /* WSREP_APPLIER_H */