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+/* Copyright 2008-2017 Codership Oy <http://www.codership.com>
+ Copyright (c) 2020, 2021, MariaDB
+
+ 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_MYSQLD_H
+#define WSREP_MYSQLD_H
+
+#include <wsrep.h>
+
+#ifdef WITH_WSREP
+extern bool WSREP_ON_;
+extern bool WSREP_PROVIDER_EXISTS_;
+
+#include <mysql/plugin.h>
+#include "mysql/service_wsrep.h"
+
+#include <my_global.h>
+#include <my_pthread.h>
+#include "log.h"
+#include "mysqld.h"
+
+typedef struct st_mysql_show_var SHOW_VAR;
+#include <sql_priv.h>
+#include "mdl.h"
+#include "sql_table.h"
+#include "wsrep_mysqld_c.h"
+
+#include "wsrep/provider.hpp"
+#include "wsrep/streaming_context.hpp"
+#include "wsrep_api.h"
+#include <vector>
+#include <map>
+#include "wsrep_server_state.h"
+
+#define WSREP_UNDEFINED_TRX_ID ULONGLONG_MAX
+
+class set_var;
+class THD;
+
+enum wsrep_consistency_check_mode {
+ NO_CONSISTENCY_CHECK,
+ CONSISTENCY_CHECK_DECLARED,
+ CONSISTENCY_CHECK_RUNNING,
+};
+
+// Global wsrep parameters
+
+// MySQL wsrep options
+extern const char* wsrep_provider;
+extern const char* wsrep_provider_options;
+extern const char* wsrep_cluster_name;
+extern const char* wsrep_cluster_address;
+extern const char* wsrep_node_name;
+extern const char* wsrep_node_address;
+extern const char* wsrep_node_incoming_address;
+extern const char* wsrep_data_home_dir;
+extern const char* wsrep_dbug_option;
+extern long wsrep_slave_threads;
+extern int wsrep_slave_count_change;
+extern ulong wsrep_debug;
+extern my_bool wsrep_convert_LOCK_to_trx;
+extern ulong wsrep_retry_autocommit;
+extern my_bool wsrep_auto_increment_control;
+extern my_bool wsrep_drupal_282555_workaround;
+extern my_bool wsrep_incremental_data_collection;
+extern const char* wsrep_start_position;
+extern ulong wsrep_max_ws_size;
+extern ulong wsrep_max_ws_rows;
+extern const char* wsrep_notify_cmd;
+extern my_bool wsrep_certify_nonPK;
+extern long int wsrep_protocol_version;
+extern ulong wsrep_forced_binlog_format;
+extern my_bool wsrep_desync;
+extern ulong wsrep_reject_queries;
+extern my_bool wsrep_recovery;
+extern my_bool wsrep_replicate_myisam;
+extern my_bool wsrep_log_conflicts;
+extern ulong wsrep_mysql_replication_bundle;
+extern my_bool wsrep_load_data_splitting;
+extern my_bool wsrep_restart_slave;
+extern my_bool wsrep_restart_slave_activated;
+extern my_bool wsrep_slave_FK_checks;
+extern my_bool wsrep_slave_UK_checks;
+extern ulong wsrep_trx_fragment_unit;
+extern ulong wsrep_SR_store_type;
+extern uint wsrep_ignore_apply_errors;
+extern ulong wsrep_running_threads;
+extern ulong wsrep_running_applier_threads;
+extern ulong wsrep_running_rollbacker_threads;
+extern bool wsrep_new_cluster;
+extern bool wsrep_gtid_mode;
+extern my_bool wsrep_strict_ddl;
+extern uint wsrep_gtid_domain_id;
+
+enum enum_wsrep_reject_types {
+ WSREP_REJECT_NONE, /* nothing rejected */
+ WSREP_REJECT_ALL, /* reject all queries, with UNKNOWN_COMMAND error */
+ WSREP_REJECT_ALL_KILL /* kill existing connections and reject all queries*/
+};
+
+enum enum_wsrep_OSU_method {
+ WSREP_OSU_TOI,
+ WSREP_OSU_RSU,
+ WSREP_OSU_NONE
+};
+
+enum enum_wsrep_sync_wait {
+ WSREP_SYNC_WAIT_NONE= 0x0,
+ // select, begin
+ WSREP_SYNC_WAIT_BEFORE_READ= 0x1,
+ WSREP_SYNC_WAIT_BEFORE_UPDATE_DELETE= 0x2,
+ WSREP_SYNC_WAIT_BEFORE_INSERT_REPLACE= 0x4,
+ WSREP_SYNC_WAIT_BEFORE_SHOW= 0x8,
+ WSREP_SYNC_WAIT_MAX= 0xF
+};
+
+enum enum_wsrep_ignore_apply_error {
+ WSREP_IGNORE_ERRORS_NONE= 0x0,
+ WSREP_IGNORE_ERRORS_ON_RECONCILING_DDL= 0x1,
+ WSREP_IGNORE_ERRORS_ON_RECONCILING_DML= 0x2,
+ WSREP_IGNORE_ERRORS_ON_DDL= 0x4,
+ WSREP_IGNORE_ERRORS_MAX= 0x7
+};
+
+// Streaming Replication
+#define WSREP_FRAG_BYTES 0
+#define WSREP_FRAG_ROWS 1
+#define WSREP_FRAG_STATEMENTS 2
+
+#define WSREP_SR_STORE_NONE 0
+#define WSREP_SR_STORE_TABLE 1
+
+extern const char *wsrep_fragment_units[];
+extern const char *wsrep_SR_store_types[];
+
+// MySQL status variables
+extern my_bool wsrep_connected;
+extern my_bool wsrep_ready;
+extern const char* wsrep_cluster_state_uuid;
+extern long long wsrep_cluster_conf_id;
+extern const char* wsrep_cluster_status;
+extern long wsrep_cluster_size;
+extern long wsrep_local_index;
+extern long long wsrep_local_bf_aborts;
+extern const char* wsrep_provider_name;
+extern const char* wsrep_provider_version;
+extern const char* wsrep_provider_vendor;
+extern char* wsrep_provider_capabilities;
+extern char* wsrep_cluster_capabilities;
+
+int wsrep_show_status(THD *thd, SHOW_VAR *var, void *buff,
+ system_status_var *status_var, enum_var_type scope);
+int wsrep_show_ready(THD *thd, SHOW_VAR *var, char *buff);
+void wsrep_free_status(THD *thd);
+void wsrep_update_cluster_state_uuid(const char* str);
+
+/* Filters out --wsrep-new-cluster oprtion from argv[]
+ * should be called in the very beginning of main() */
+void wsrep_filter_new_cluster (int* argc, char* argv[]);
+
+int wsrep_init();
+void wsrep_deinit(bool free_options);
+
+/* Initialize wsrep thread LOCKs and CONDs */
+void wsrep_thr_init();
+/* Destroy wsrep thread LOCKs and CONDs */
+void wsrep_thr_deinit();
+
+void wsrep_recover();
+bool wsrep_before_SE(); // initialize wsrep before storage
+ // engines (true) or after (false)
+/* wsrep initialization sequence at startup
+ * @param before wsrep_before_SE() value */
+void wsrep_init_startup(bool before);
+
+/* Recover streaming transactions from fragment storage */
+void wsrep_recover_sr_from_storage(THD *);
+
+// Other wsrep global variables
+extern my_bool wsrep_inited; // whether wsrep is initialized ?
+extern bool wsrep_service_started;
+
+extern "C" void wsrep_fire_rollbacker(THD *thd);
+extern "C" uint32 wsrep_thd_wsrep_rand(THD *thd);
+extern "C" time_t wsrep_thd_query_start(THD *thd);
+extern void wsrep_close_client_connections(my_bool wait_to_end,
+ THD *except_caller_thd= NULL);
+extern "C" query_id_t wsrep_thd_wsrep_last_query_id(THD *thd);
+extern "C" void wsrep_thd_set_wsrep_last_query_id(THD *thd, query_id_t id);
+
+extern int wsrep_wait_committing_connections_close(int wait_time);
+extern void wsrep_close_applier(THD *thd);
+extern void wsrep_wait_appliers_close(THD *thd);
+extern void wsrep_close_applier_threads(int count);
+
+
+/* new defines */
+extern void wsrep_stop_replication(THD *thd);
+extern bool wsrep_start_replication(const char *wsrep_cluster_address);
+extern void wsrep_shutdown_replication();
+extern bool wsrep_must_sync_wait (THD* thd, uint mask= WSREP_SYNC_WAIT_BEFORE_READ);
+extern bool wsrep_sync_wait (THD* thd, uint mask= WSREP_SYNC_WAIT_BEFORE_READ);
+extern enum wsrep::provider::status
+wsrep_sync_wait_upto (THD* thd, wsrep_gtid_t* upto, int timeout);
+extern void wsrep_last_committed_id (wsrep_gtid_t* gtid);
+extern int wsrep_check_opts();
+extern void wsrep_prepend_PATH (const char* path);
+extern bool wsrep_append_fk_parent_table(THD* thd, TABLE_LIST* table, wsrep::key_array* keys);
+extern bool wsrep_reload_ssl();
+
+/* Other global variables */
+extern wsrep_seqno_t wsrep_locked_seqno;
+#define WSREP_ON unlikely(WSREP_ON_)
+
+/* use xxxxxx_NNULL macros when thd pointer is guaranteed to be non-null to
+ * avoid compiler warnings (GCC 6 and later) */
+
+#define WSREP_NNULL(thd) \
+ (WSREP_PROVIDER_EXISTS_ && thd->variables.wsrep_on)
+
+#define WSREP(thd) \
+ (thd && WSREP_NNULL(thd))
+
+#define WSREP_CLIENT_NNULL(thd) \
+ (WSREP_NNULL(thd) && thd->wsrep_client_thread)
+
+#define WSREP_CLIENT(thd) \
+ (WSREP(thd) && thd->wsrep_client_thread)
+
+#define WSREP_EMULATE_BINLOG_NNULL(thd) \
+ (WSREP_NNULL(thd) && wsrep_emulate_bin_log)
+
+#define WSREP_EMULATE_BINLOG(thd) \
+ (WSREP(thd) && wsrep_emulate_bin_log)
+
+#define WSREP_BINLOG_FORMAT(my_format) \
+ ((wsrep_forced_binlog_format != BINLOG_FORMAT_UNSPEC) ? \
+ wsrep_forced_binlog_format : my_format)
+
+/* A wrapper function for MySQL log functions. The call will prefix
+ the log message with WSREP and forward the result buffer to fun. */
+void WSREP_LOG(void (*fun)(const char* fmt, ...), const char* fmt, ...);
+
+#define WSREP_DEBUG(...) \
+ if (wsrep_debug) sql_print_information( "WSREP: " __VA_ARGS__)
+#define WSREP_INFO(...) sql_print_information( "WSREP: " __VA_ARGS__)
+#define WSREP_WARN(...) sql_print_warning( "WSREP: " __VA_ARGS__)
+#define WSREP_ERROR(...) sql_print_error( "WSREP: " __VA_ARGS__)
+#define WSREP_UNKNOWN(fmt, ...) WSREP_ERROR("UNKNOWN: " fmt, ##__VA_ARGS__)
+
+#define WSREP_LOG_CONFLICT_THD(thd, role) \
+ WSREP_INFO( \
+ "%s: \n " \
+ " THD: %lu, mode: %s, state: %s, conflict: %s, seqno: %lld\n " \
+ " SQL: %s", \
+ role, \
+ thd_get_thread_id(thd), \
+ wsrep_thd_client_mode_str(thd), \
+ wsrep_thd_client_state_str(thd), \
+ wsrep_thd_transaction_state_str(thd), \
+ wsrep_thd_trx_seqno(thd), \
+ wsrep_thd_query(thd) \
+ );
+
+#define WSREP_LOG_CONFLICT(bf_thd, victim_thd, bf_abort) \
+ if (wsrep_debug || wsrep_log_conflicts) \
+ { \
+ WSREP_INFO("cluster conflict due to %s for threads:", \
+ (bf_abort) ? "high priority abort" : "certification failure" \
+ ); \
+ if (bf_thd) WSREP_LOG_CONFLICT_THD(bf_thd, "Winning thread"); \
+ if (victim_thd) WSREP_LOG_CONFLICT_THD(victim_thd, "Victim thread"); \
+ WSREP_INFO("context: %s:%d", __FILE__, __LINE__); \
+ }
+
+#define WSREP_PROVIDER_EXISTS (WSREP_PROVIDER_EXISTS_)
+
+static inline bool wsrep_cluster_address_exists()
+{
+ if (mysqld_server_started)
+ mysql_mutex_assert_owner(&LOCK_global_system_variables);
+ return wsrep_cluster_address && wsrep_cluster_address[0];
+}
+
+#define WSREP_QUERY(thd) (thd->query())
+
+extern my_bool wsrep_ready_get();
+extern void wsrep_ready_wait();
+
+class Ha_trx_info;
+struct THD_TRANS;
+
+extern mysql_mutex_t LOCK_wsrep_ready;
+extern mysql_cond_t COND_wsrep_ready;
+extern mysql_mutex_t LOCK_wsrep_sst;
+extern mysql_cond_t COND_wsrep_sst;
+extern mysql_mutex_t LOCK_wsrep_sst_init;
+extern mysql_cond_t COND_wsrep_sst_init;
+extern int wsrep_replaying;
+extern mysql_mutex_t LOCK_wsrep_replaying;
+extern mysql_cond_t COND_wsrep_replaying;
+extern mysql_mutex_t LOCK_wsrep_slave_threads;
+extern mysql_cond_t COND_wsrep_slave_threads;
+extern mysql_mutex_t LOCK_wsrep_gtid_wait_upto;
+extern mysql_mutex_t LOCK_wsrep_cluster_config;
+extern mysql_mutex_t LOCK_wsrep_desync;
+extern mysql_mutex_t LOCK_wsrep_SR_pool;
+extern mysql_mutex_t LOCK_wsrep_SR_store;
+extern mysql_mutex_t LOCK_wsrep_config_state;
+extern mysql_mutex_t LOCK_wsrep_group_commit;
+extern mysql_mutex_t LOCK_wsrep_joiner_monitor;
+extern mysql_mutex_t LOCK_wsrep_donor_monitor;
+extern mysql_cond_t COND_wsrep_joiner_monitor;
+extern mysql_cond_t COND_wsrep_donor_monitor;
+
+extern my_bool wsrep_emulate_bin_log;
+extern int wsrep_to_isolation;
+extern my_bool wsrep_preordered_opt;
+
+#ifdef HAVE_PSI_INTERFACE
+
+extern PSI_cond_key key_COND_wsrep_thd;
+
+extern PSI_mutex_key key_LOCK_wsrep_ready;
+extern PSI_mutex_key key_COND_wsrep_ready;
+extern PSI_mutex_key key_LOCK_wsrep_sst;
+extern PSI_cond_key key_COND_wsrep_sst;
+extern PSI_mutex_key key_LOCK_wsrep_sst_init;
+extern PSI_cond_key key_COND_wsrep_sst_init;
+extern PSI_mutex_key key_LOCK_wsrep_sst_thread;
+extern PSI_cond_key key_COND_wsrep_sst_thread;
+extern PSI_mutex_key key_LOCK_wsrep_replaying;
+extern PSI_cond_key key_COND_wsrep_replaying;
+extern PSI_mutex_key key_LOCK_wsrep_slave_threads;
+extern PSI_cond_key key_COND_wsrep_slave_threads;
+extern PSI_mutex_key key_LOCK_wsrep_gtid_wait_upto;
+extern PSI_cond_key key_COND_wsrep_gtid_wait_upto;
+extern PSI_mutex_key key_LOCK_wsrep_cluster_config;
+extern PSI_mutex_key key_LOCK_wsrep_desync;
+extern PSI_mutex_key key_LOCK_wsrep_SR_pool;
+extern PSI_mutex_key key_LOCK_wsrep_SR_store;
+extern PSI_mutex_key key_LOCK_wsrep_global_seqno;
+extern PSI_mutex_key key_LOCK_wsrep_thd_queue;
+extern PSI_cond_key key_COND_wsrep_thd_queue;
+extern PSI_mutex_key key_LOCK_wsrep_joiner_monitor;
+extern PSI_mutex_key key_LOCK_wsrep_donor_monitor;
+
+extern PSI_file_key key_file_wsrep_gra_log;
+
+extern PSI_thread_key key_wsrep_sst_joiner;
+extern PSI_thread_key key_wsrep_sst_donor;
+extern PSI_thread_key key_wsrep_rollbacker;
+extern PSI_thread_key key_wsrep_applier;
+extern PSI_thread_key key_wsrep_sst_joiner_monitor;
+extern PSI_thread_key key_wsrep_sst_donor_monitor;
+#endif /* HAVE_PSI_INTERFACE */
+
+
+struct TABLE_LIST;
+class Alter_info;
+struct HA_CREATE_INFO;
+
+int wsrep_to_isolation_begin(THD *thd, const char *db_, const char *table_,
+ const TABLE_LIST* table_list,
+ const Alter_info* alter_info= nullptr,
+ const wsrep::key_array *fk_tables= nullptr,
+ const HA_CREATE_INFO* create_info= nullptr);
+
+bool wsrep_should_replicate_ddl(THD* thd, const enum legacy_db_type db_type);
+bool wsrep_should_replicate_ddl_iterate(THD* thd, const TABLE_LIST* table_list);
+
+void wsrep_to_isolation_end(THD *thd);
+
+bool wsrep_append_SR_keys(THD *thd);
+int wsrep_to_buf_helper(
+ THD* thd, const char *query, uint query_len, uchar** buf, size_t* buf_len);
+int wsrep_create_trigger_query(THD *thd, uchar** buf, size_t* buf_len);
+int wsrep_create_event_query(THD *thd, uchar** buf, size_t* buf_len);
+
+void wsrep_init_sidno(const wsrep_uuid_t&);
+bool wsrep_node_is_donor();
+bool wsrep_node_is_synced();
+
+void wsrep_init_SR();
+void wsrep_verify_SE_checkpoint(const wsrep_uuid_t& uuid, wsrep_seqno_t seqno);
+int wsrep_replay_from_SR_store(THD*, const wsrep_trx_meta_t&);
+void wsrep_node_uuid(wsrep_uuid_t&);
+
+class Log_event;
+int wsrep_ignored_error_code(Log_event* ev, int error);
+int wsrep_must_ignore_error(THD* thd);
+
+struct wsrep_server_gtid_t
+{
+ uint32 domain_id;
+ uint32 server_id;
+ uint64 seqno;
+};
+class Wsrep_gtid_server
+{
+public:
+ uint32 domain_id;
+ uint32 server_id;
+ Wsrep_gtid_server()
+ : m_force_signal(false)
+ , m_seqno(0)
+ , m_committed_seqno(0)
+ { }
+ void gtid(const wsrep_server_gtid_t& gtid)
+ {
+ domain_id= gtid.domain_id;
+ server_id= gtid.server_id;
+ m_seqno= gtid.seqno;
+ }
+ wsrep_server_gtid_t gtid()
+ {
+ wsrep_server_gtid_t gtid;
+ gtid.domain_id= domain_id;
+ gtid.server_id= server_id;
+ gtid.seqno= m_seqno;
+ return gtid;
+ }
+ void seqno(const uint64 seqno) { m_seqno= seqno; }
+ uint64 seqno() const { return m_seqno; }
+ uint64 seqno_committed() const { return m_committed_seqno; }
+ uint64 seqno_inc()
+ {
+ m_seqno++;
+ return m_seqno;
+ }
+ const wsrep_server_gtid_t& undefined()
+ {
+ return m_undefined;
+ }
+ int wait_gtid_upto(const uint64_t seqno, uint timeout)
+ {
+ int wait_result= 0;
+ struct timespec wait_time;
+ int ret= 0;
+ mysql_cond_t wait_cond;
+ mysql_cond_init(key_COND_wsrep_gtid_wait_upto, &wait_cond, NULL);
+ set_timespec(wait_time, timeout);
+ mysql_mutex_lock(&LOCK_wsrep_gtid_wait_upto);
+ std::multimap<uint64, mysql_cond_t*>::iterator it;
+ if (seqno > m_seqno)
+ {
+ try
+ {
+ it= m_wait_map.insert(std::make_pair(seqno, &wait_cond));
+ }
+ catch (std::bad_alloc& e)
+ {
+ ret= ENOMEM;
+ }
+ while (!ret && (m_committed_seqno < seqno) && !m_force_signal)
+ {
+ wait_result= mysql_cond_timedwait(&wait_cond,
+ &LOCK_wsrep_gtid_wait_upto,
+ &wait_time);
+ if (wait_result == ETIMEDOUT || wait_result == ETIME)
+ {
+ ret= wait_result;
+ break;
+ }
+ }
+ if (ret != ENOMEM)
+ {
+ m_wait_map.erase(it);
+ }
+ }
+ mysql_mutex_unlock(&LOCK_wsrep_gtid_wait_upto);
+ mysql_cond_destroy(&wait_cond);
+ return ret;
+ }
+ void signal_waiters(uint64 seqno, bool signal_all)
+ {
+ mysql_mutex_lock(&LOCK_wsrep_gtid_wait_upto);
+ if (!signal_all && (m_committed_seqno >= seqno))
+ {
+ mysql_mutex_unlock(&LOCK_wsrep_gtid_wait_upto);
+ return;
+ }
+ m_force_signal= true;
+ std::multimap<uint64, mysql_cond_t*>::iterator it_end;
+ std::multimap<uint64, mysql_cond_t*>::iterator it_begin;
+ if (signal_all)
+ {
+ it_end= m_wait_map.end();
+ }
+ else
+ {
+ it_end= m_wait_map.upper_bound(seqno);
+ }
+ if (m_committed_seqno < seqno)
+ {
+ m_committed_seqno= seqno;
+ }
+ for (it_begin = m_wait_map.begin(); it_begin != it_end; ++it_begin)
+ {
+ mysql_cond_signal(it_begin->second);
+ }
+ m_force_signal= false;
+ mysql_mutex_unlock(&LOCK_wsrep_gtid_wait_upto);
+ }
+private:
+ const wsrep_server_gtid_t m_undefined= {0,0,0};
+ std::multimap<uint64, mysql_cond_t*> m_wait_map;
+ bool m_force_signal;
+ Atomic_counter<uint64_t> m_seqno;
+ Atomic_counter<uint64_t> m_committed_seqno;
+};
+extern Wsrep_gtid_server wsrep_gtid_server;
+void wsrep_init_gtid();
+bool wsrep_check_gtid_seqno(const uint32&, const uint32&, uint64&);
+bool wsrep_get_binlog_gtid_seqno(wsrep_server_gtid_t&);
+
+typedef struct wsrep_key_arr
+{
+ wsrep_key_t* keys;
+ size_t keys_len;
+} wsrep_key_arr_t;
+bool wsrep_prepare_keys_for_isolation(THD* thd,
+ const char* db,
+ const char* table,
+ const TABLE_LIST* table_list,
+ wsrep_key_arr_t* ka);
+void wsrep_keys_free(wsrep_key_arr_t* key_arr);
+
+extern void
+wsrep_handle_mdl_conflict(MDL_context *requestor_ctx,
+ const MDL_ticket *ticket,
+ const MDL_key *key);
+
+enum wsrep_thread_type {
+ WSREP_APPLIER_THREAD=1,
+ WSREP_ROLLBACKER_THREAD=2
+};
+
+typedef void (*wsrep_thd_processor_fun)(THD*, void *);
+class Wsrep_thd_args
+{
+ public:
+ Wsrep_thd_args(wsrep_thd_processor_fun fun,
+ wsrep_thread_type thread_type,
+ pthread_t thread_id)
+ :
+ fun_ (fun),
+ thread_type_ (thread_type),
+ thread_id_ (thread_id)
+ { }
+
+ wsrep_thd_processor_fun fun() { return fun_; }
+ pthread_t* thread_id() {return &thread_id_; }
+ enum wsrep_thread_type thread_type() {return thread_type_;}
+
+ private:
+
+ Wsrep_thd_args(const Wsrep_thd_args&);
+ Wsrep_thd_args& operator=(const Wsrep_thd_args&);
+
+ wsrep_thd_processor_fun fun_;
+ enum wsrep_thread_type thread_type_;
+ pthread_t thread_id_;
+};
+
+void* start_wsrep_THD(void*);
+
+void wsrep_close_threads(THD *thd);
+bool wsrep_is_show_query(enum enum_sql_command command);
+void wsrep_replay_transaction(THD *thd);
+bool wsrep_create_like_table(THD* thd, TABLE_LIST* table,
+ TABLE_LIST* src_table,
+ HA_CREATE_INFO *create_info);
+bool wsrep_node_is_donor();
+bool wsrep_node_is_synced();
+
+/**
+ * Check if the wsrep provider (ie the Galera library) is capable of
+ * doing streaming replication.
+ * @return true if SR capable
+ */
+bool wsrep_provider_is_SR_capable();
+
+/**
+ * Initialize WSREP server instance.
+ *
+ * @return Zero on success, non-zero on error.
+ */
+int wsrep_init_server();
+
+/**
+ * Initialize WSREP globals. This should be done after server initialization
+ * is complete and the server has joined to the cluster.
+ *
+ */
+void wsrep_init_globals();
+
+/**
+ * Deinit and release WSREP resources.
+ */
+void wsrep_deinit_server();
+
+/**
+ * Convert streaming fragment unit (WSREP_FRAG_BYTES, WSREP_FRAG_ROWS...)
+ * to corresponding wsrep-lib fragment_unit
+ */
+enum wsrep::streaming_context::fragment_unit wsrep_fragment_unit(ulong unit);
+
+wsrep::key wsrep_prepare_key_for_toi(const char* db, const char* table,
+ enum wsrep::key::type type);
+
+#else /* !WITH_WSREP */
+
+/* These macros are needed to compile MariaDB without WSREP support
+ * (e.g. embedded) */
+
+#define WSREP_ON false
+#define WSREP(T) (0)
+#define WSREP_NNULL(T) (0)
+#define WSREP_EMULATE_BINLOG(thd) (0)
+#define WSREP_EMULATE_BINLOG_NNULL(thd) (0)
+#define WSREP_BINLOG_FORMAT(my_format) ((ulong)my_format)
+#define WSREP_PROVIDER_EXISTS (0)
+#define wsrep_emulate_bin_log (0)
+#define wsrep_to_isolation (0)
+#define wsrep_before_SE() (0)
+#define wsrep_init_startup(X)
+#define wsrep_check_opts() (0)
+#define wsrep_thr_init() do {} while(0)
+#define wsrep_thr_deinit() do {} while(0)
+#define wsrep_init_globals() do {} while(0)
+#define wsrep_create_appliers(X) do {} while(0)
+#define wsrep_should_replicate_ddl(X,Y) (1)
+#define wsrep_cluster_address_exists() (false)
+
+#endif /* WITH_WSREP */
+
+#endif /* WSREP_MYSQLD_H */