/* Copyright (C) 2013-2018 Codership Oy <info@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_SST_H
#define WSREP_SST_H

#include <my_config.h>

#include "wsrep/gtid.hpp"
#include <my_global.h>
#include <string>

#define WSREP_SST_OPT_ROLE     "--role"
#define WSREP_SST_OPT_ADDR     "--address"
#define WSREP_SST_OPT_AUTH     "--auth"
#define WSREP_SST_OPT_DATA     "--datadir"
#define WSREP_SST_OPT_CONF     "--defaults-file"
#define WSREP_SST_OPT_CONF_SUFFIX "--defaults-group-suffix"
#define WSREP_SST_OPT_CONF_EXTRA  "--defaults-extra-file"
#define WSREP_SST_OPT_PARENT   "--parent"
#define WSREP_SST_OPT_BINLOG   "--binlog"
#define WSREP_SST_OPT_BINLOG_INDEX "--binlog-index"
#define WSREP_SST_OPT_PROGRESS "--progress"
#define WSREP_SST_OPT_MYSQLD   "--mysqld-args"

// mysqldump-specific options
#define WSREP_SST_OPT_USER     "--user"
#define WSREP_SST_OPT_PSWD     "--password"
#define WSREP_SST_OPT_HOST     "--host"
#define WSREP_SST_OPT_PORT     "--port"
#define WSREP_SST_OPT_LPORT    "--local-port"

// donor-specific
#define WSREP_SST_OPT_SOCKET   "--socket"
#define WSREP_SST_OPT_GTID     "--gtid"
#define WSREP_SST_OPT_BYPASS   "--bypass"
#define WSREP_SST_OPT_GTID_DOMAIN_ID "--gtid-domain-id"

#define WSREP_SST_MYSQLDUMP    "mysqldump"
#define WSREP_SST_RSYNC        "rsync"
#define WSREP_SST_SKIP         "skip"
#define WSREP_SST_MARIABACKUP  "mariabackup"
#define WSREP_SST_XTRABACKUP   "xtrabackup"
#define WSREP_SST_XTRABACKUPV2 "xtrabackupv2"
#define WSREP_SST_DEFAULT      WSREP_SST_RSYNC
#define WSREP_SST_ADDRESS_AUTO "AUTO"
#define WSREP_SST_AUTH_DEFAULT NULL

/* system variables */
extern const char* wsrep_sst_method;
extern const char* wsrep_sst_receive_address;
extern const char* wsrep_sst_donor;
extern const char* wsrep_sst_auth;
extern my_bool wsrep_sst_donor_rejects_queries;

/*! Synchronizes applier thread start with init thread */
extern void wsrep_sst_grab();
/*! Init thread waits for SST completion */
extern bool wsrep_sst_wait();
/*! Signals wsrep that initialization is complete, writesets can be applied */
extern bool wsrep_sst_continue();
extern bool wsrep_sst_auth_set(const char* value);
extern void wsrep_sst_auth_free();

extern void wsrep_SE_init_grab();   /*! grab init critical section */
extern void wsrep_SE_init_wait();   /*! wait for SE init to complete */
extern void wsrep_SE_init_done();   /*! signal that SE init is complte */
extern void wsrep_SE_initialized(); /*! mark SE initialization complete */

/**
   Return a string containing the state transfer request string.
   Note that the string may contain a '\0' in the middle.
*/
std::string wsrep_sst_prepare();

/**
   Donate a SST.

  @param request SST request string received from the joiner. Note that
                 the string may contain a '\0' in the middle.
  @param gtid    Current position of the donor
  @param bypass  If true, full SST is not needed. Joiner needs to be
                 notified that it can continue starting from gtid.
 */
int wsrep_sst_donate(const std::string& request,
                     const wsrep::gtid& gtid,
                     bool bypass);

/**
   Cleanup stale SST users from the database records
   @param thd wsp::thd object (wraps initialized THD* pointer)
  */
void wsrep_sst_cleanup_user(THD* thd);

#else
#define wsrep_SE_initialized() do { } while(0)
#define wsrep_SE_init_grab() do { } while(0)
#define wsrep_SE_init_done() do { } while(0)
#define wsrep_sst_continue() (0)

#endif /* WSREP_SST_H */
