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service_wsrep.h
#ifndef MYSQL_SERVICE_WSREP_INCLUDED #define MYSQL_SERVICE_WSREP_INCLUDED enum Wsrep_service_key_type { WSREP_SERVICE_KEY_SHARED, WSREP_SERVICE_KEY_REFERENCE, WSREP_SERVICE_KEY_UPDATE, WSREP_SERVICE_KEY_EXCLUSIVE }; #if (defined (MYSQL_DYNAMIC_PLUGIN) && defined(MYSQL_SERVICE_WSREP_DYNAMIC_INCLUDED)) || (!defined(MYSQL_DYNAMIC_PLUGIN) && defined(MYSQL_SERVICE_WSREP_STATIC_INCLUDED)) #else /* Copyright (c) 2015, 2020, MariaDB Corporation Ab 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 St, Fifth Floor, Boston, MA 02110-1335 USA */ /** @file wsrep service Interface to WSREP functionality in the server. For engines that want to support galera. */ #include <my_pthread.h> #ifdef __cplusplus #endif struct xid_t; struct wsrep_ws_handle; struct wsrep_buf; /* Must match to definition in sql/mysqld.h */ typedef int64 query_id_t; extern struct wsrep_service_st { my_bool (*get_wsrep_recovery_func)(); bool (*wsrep_consistency_check_func)(MYSQL_THD thd); int (*wsrep_is_wsrep_xid_func)(const void *xid); long long (*wsrep_xid_seqno_func)(const struct xid_t *xid); const unsigned char* (*wsrep_xid_uuid_func)(const struct xid_t *xid); my_bool (*wsrep_on_func)(const MYSQL_THD thd); bool (*wsrep_prepare_key_for_innodb_func)(MYSQL_THD thd, const unsigned char*, size_t, const unsigned char*, size_t, struct wsrep_buf*, size_t*); void (*wsrep_thd_LOCK_func)(const MYSQL_THD thd); int (*wsrep_thd_TRYLOCK_func)(const MYSQL_THD thd); void (*wsrep_thd_UNLOCK_func)(const MYSQL_THD thd); const char * (*wsrep_thd_query_func)(const MYSQL_THD thd); int (*wsrep_thd_retry_counter_func)(const MYSQL_THD thd); bool (*wsrep_thd_ignore_table_func)(MYSQL_THD thd); long long (*wsrep_thd_trx_seqno_func)(const MYSQL_THD thd); my_bool (*wsrep_thd_is_aborting_func)(const MYSQL_THD thd); void (*wsrep_set_data_home_dir_func)(const char *data_dir); my_bool (*wsrep_thd_is_BF_func)(const MYSQL_THD thd, my_bool sync); my_bool (*wsrep_thd_is_local_func)(const MYSQL_THD thd); void (*wsrep_thd_self_abort_func)(MYSQL_THD thd); int (*wsrep_thd_append_key_func)(MYSQL_THD thd, const struct wsrep_key* key, int n_keys, enum Wsrep_service_key_type); int (*wsrep_thd_append_table_key_func)(MYSQL_THD thd, const char* db, const char* table, enum Wsrep_service_key_type); my_bool (*wsrep_thd_is_local_transaction)(const MYSQL_THD thd); const char* (*wsrep_thd_client_state_str_func)(const MYSQL_THD thd); const char* (*wsrep_thd_client_mode_str_func)(const MYSQL_THD thd); const char* (*wsrep_thd_transaction_state_str_func)(const MYSQL_THD thd); query_id_t (*wsrep_thd_transaction_id_func)(const MYSQL_THD thd); my_bool (*wsrep_thd_bf_abort_func)(MYSQL_THD bf_thd, MYSQL_THD victim_thd, my_bool signal); my_bool (*wsrep_thd_order_before_func)(const MYSQL_THD left, const MYSQL_THD right); void (*wsrep_handle_SR_rollback_func)(MYSQL_THD BF_thd, MYSQL_THD victim_thd); my_bool (*wsrep_thd_skip_locking_func)(const MYSQL_THD thd); const char* (*wsrep_get_sr_table_name_func)(); my_bool (*wsrep_get_debug_func)(); void (*wsrep_commit_ordered_func)(MYSQL_THD thd); my_bool (*wsrep_thd_is_applying_func)(const MYSQL_THD thd); ulong (*wsrep_OSU_method_get_func)(const MYSQL_THD thd); my_bool (*wsrep_thd_has_ignored_error_func)(const MYSQL_THD thd); void (*wsrep_thd_set_ignored_error_func)(MYSQL_THD thd, my_bool val); void (*wsrep_report_bf_lock_wait_func)(const MYSQL_THD thd, unsigned long long trx_id); void (*wsrep_thd_kill_LOCK_func)(const MYSQL_THD thd); void (*wsrep_thd_kill_UNLOCK_func)(const MYSQL_THD thd); void (*wsrep_thd_set_wsrep_PA_unsafe_func)(MYSQL_THD thd); uint32 (*wsrep_get_domain_id_func)(); } *wsrep_service; #define MYSQL_SERVICE_WSREP_INCLUDED #endif #ifdef MYSQL_DYNAMIC_PLUGIN #define MYSQL_SERVICE_WSREP_DYNAMIC_INCLUDED #define get_wsrep_recovery() wsrep_service->get_wsrep_recovery_func() #define wsrep_consistency_check(T) wsrep_service->wsrep_consistency_check_func(T) #define wsrep_is_wsrep_xid(X) wsrep_service->wsrep_is_wsrep_xid_func(X) #define wsrep_xid_seqno(X) wsrep_service->wsrep_xid_seqno_func(X) #define wsrep_xid_uuid(X) wsrep_service->wsrep_xid_uuid_func(X) #define wsrep_on(thd) (thd) && WSREP_ON && wsrep_service->wsrep_on_func(thd) #define wsrep_prepare_key_for_innodb(A,B,C,D,E,F,G) wsrep_service->wsrep_prepare_key_for_innodb_func(A,B,C,D,E,F,G) #define wsrep_thd_LOCK(T) wsrep_service->wsrep_thd_LOCK_func(T) #define wsrep_thd_TRYLOCK(T) wsrep_service->wsrep_thd_TRYLOCK_func(T) #define wsrep_thd_UNLOCK(T) wsrep_service->wsrep_thd_UNLOCK_func(T) #define wsrep_thd_kill_LOCK(T) wsrep_service->wsrep_thd_kill_LOCK_func(T) #define wsrep_thd_kill_UNLOCK(T) wsrep_service->wsrep_thd_kill_UNLOCK_func(T) #define wsrep_thd_query(T) wsrep_service->wsrep_thd_query_func(T) #define wsrep_thd_retry_counter(T) wsrep_service->wsrep_thd_retry_counter_func(T) #define wsrep_thd_ignore_table(T) wsrep_service->wsrep_thd_ignore_table_func(T) #define wsrep_thd_trx_seqno(T) wsrep_service->wsrep_thd_trx_seqno_func(T) #define wsrep_set_data_home_dir(A) wsrep_service->wsrep_set_data_home_dir_func(A) #define wsrep_thd_is_BF(T,S) wsrep_service->wsrep_thd_is_BF_func(T,S) #define wsrep_thd_is_aborting(T) wsrep_service->wsrep_thd_is_aborting_func(T) #define wsrep_thd_is_local(T) wsrep_service->wsrep_thd_is_local_func(T) #define wsrep_thd_self_abort(T) wsrep_service->wsrep_thd_self_abort_func(T) #define wsrep_thd_append_key(T,W,N,K) wsrep_service->wsrep_thd_append_key_func(T,W,N,K) #define wsrep_thd_append_table_key(T,D,B,K) wsrep_service->wsrep_thd_append_table_key_func(T,D,B,K) #define wsrep_thd_is_local_transaction(T) wsrep_service->wsrep_thd_is_local_transaction_func(T) #define wsrep_thd_client_state_str(T) wsrep_service->wsrep_thd_client_state_str_func(T) #define wsrep_thd_client_mode_str(T) wsrep_service->wsrep_thd_client_mode_str_func(T) #define wsrep_thd_transaction_state_str(T) wsrep_service->wsrep_thd_transaction_state_str_func(T) #define wsrep_thd_transaction_id(T) wsrep_service->wsrep_thd_transaction_id_func(T) #define wsrep_thd_bf_abort(T,T2,S) wsrep_service->wsrep_thd_bf_abort_func(T,T2,S) #define wsrep_thd_order_before(L,R) wsrep_service->wsrep_thd_order_before_func(L,R) #define wsrep_handle_SR_rollback(B,V) wsrep_service->wsrep_handle_SR_rollback_func(B,V) #define wsrep_thd_skip_locking(T) wsrep_service->wsrep_thd_skip_locking_func(T) #define wsrep_get_sr_table_name() wsrep_service->wsrep_get_sr_table_name_func() #define wsrep_get_debug() wsrep_service->wsrep_get_debug_func() #define wsrep_commit_ordered(T) wsrep_service->wsrep_commit_ordered_func(T) #define wsrep_thd_is_applying(T) wsrep_service->wsrep_thd_is_applying_func(T) #define wsrep_OSU_method_get(T) wsrep_service->wsrep_OSU_method_get_func(T) #define wsrep_thd_has_ignored_error(T) wsrep_service->wsrep_thd_has_ignored_error_func(T) #define wsrep_thd_set_ignored_error(T,V) wsrep_service->wsrep_thd_set_ignored_error_func(T,V) #define wsrep_report_bf_lock_wait(T,I) wsrep_service->wsrep_report_bf_lock_wait(T,I) #define wsrep_thd_set_PA_unsafe(T) wsrep_service->wsrep_thd_set_PA_unsafe_func(T) #define wsrep_get_domain_id(T) wsrep_service->wsrep_get_domain_id_func(T) #else #define MYSQL_SERVICE_WSREP_STATIC_INCLUDED extern ulong wsrep_debug; extern my_bool wsrep_log_conflicts; extern my_bool wsrep_certify_nonPK; extern my_bool wsrep_load_data_splitting; extern my_bool wsrep_drupal_282555_workaround; extern my_bool wsrep_recovery; extern long wsrep_protocol_version; extern "C" bool wsrep_consistency_check(MYSQL_THD thd); bool wsrep_prepare_key_for_innodb(MYSQL_THD thd, const unsigned char* cache_key, size_t cache_key_len, const unsigned char* row_id, size_t row_id_len, struct wsrep_buf* key, size_t* key_len); extern "C" const char *wsrep_thd_query(const MYSQL_THD thd); extern "C" int wsrep_is_wsrep_xid(const void* xid); extern "C" long long wsrep_xid_seqno(const struct xid_t* xid); const unsigned char* wsrep_xid_uuid(const struct xid_t* xid); extern "C" long long wsrep_thd_trx_seqno(const MYSQL_THD thd); my_bool get_wsrep_recovery(); bool wsrep_thd_ignore_table(MYSQL_THD thd); void wsrep_set_data_home_dir(const char *data_dir); /* from mysql wsrep-lib */ #include "my_global.h" #include "my_pthread.h" /* Return true if wsrep is enabled for a thd. This means that wsrep is enabled globally and the thd has wsrep on */ extern "C" my_bool wsrep_on(const MYSQL_THD thd); /* Lock thd wsrep lock */ extern "C" void wsrep_thd_LOCK(const MYSQL_THD thd); /* Try thd wsrep lock. Return non-zero if lock could not be taken. */ extern "C" int wsrep_thd_TRYLOCK(const MYSQL_THD thd); /* Unlock thd wsrep lock */ extern "C" void wsrep_thd_UNLOCK(const MYSQL_THD thd); extern "C" void wsrep_thd_kill_LOCK(const MYSQL_THD thd); extern "C" void wsrep_thd_kill_UNLOCK(const MYSQL_THD thd); /* Return thd client state string */ extern "C" const char* wsrep_thd_client_state_str(const MYSQL_THD thd); /* Return thd client mode string */ extern "C" const char* wsrep_thd_client_mode_str(const MYSQL_THD thd); /* Return thd transaction state string */ extern "C" const char* wsrep_thd_transaction_state_str(const MYSQL_THD thd); /* Return current transaction id */ extern "C" query_id_t wsrep_thd_transaction_id(const MYSQL_THD thd); /* Mark thd own transaction as aborted */ extern "C" void wsrep_thd_self_abort(MYSQL_THD thd); /* Return true if thd is in replicating mode */ extern "C" my_bool wsrep_thd_is_local(const MYSQL_THD thd); /* Return true if thd is in high priority mode */ /* todo: rename to is_high_priority() */ extern "C" my_bool wsrep_thd_is_applying(const MYSQL_THD thd); /* Return true if thd is in TOI mode */ extern "C" my_bool wsrep_thd_is_toi(const MYSQL_THD thd); /* Return true if thd is in replicating TOI mode */ extern "C" my_bool wsrep_thd_is_local_toi(const MYSQL_THD thd); /* Return true if thd is in RSU mode */ extern "C" my_bool wsrep_thd_is_in_rsu(const MYSQL_THD thd); /* Return true if thd is in BF mode, either high_priority or TOI */ extern "C" my_bool wsrep_thd_is_BF(const MYSQL_THD thd, my_bool sync); /* Return true if thd is streaming in progress */ extern "C" my_bool wsrep_thd_is_SR(const MYSQL_THD thd); extern "C" void wsrep_handle_SR_rollback(MYSQL_THD BF_thd, MYSQL_THD victim_thd); /* Return thd retry counter */ extern "C" int wsrep_thd_retry_counter(const MYSQL_THD thd); /* BF abort victim_thd */ extern "C" my_bool wsrep_thd_bf_abort(MYSQL_THD bf_thd, MYSQL_THD victim_thd, my_bool signal); /* Return true if left thd is ordered before right thd */ extern "C" my_bool wsrep_thd_order_before(const MYSQL_THD left, const MYSQL_THD right); /* Return true if thd should skip locking. This means that the thd is operating on shared resource inside commit order critical section. */ extern "C" my_bool wsrep_thd_skip_locking(const MYSQL_THD thd); /* Return true if thd is aborting */ extern "C" my_bool wsrep_thd_is_aborting(const MYSQL_THD thd); struct wsrep_key; struct wsrep_key_array; extern "C" int wsrep_thd_append_key(MYSQL_THD thd, const struct wsrep_key* key, int n_keys, enum Wsrep_service_key_type); extern "C" int wsrep_thd_append_table_key(MYSQL_THD thd, const char* db, const char* table, enum Wsrep_service_key_type); extern "C" my_bool wsrep_thd_is_local_transaction(const MYSQL_THD thd); extern const char* wsrep_sr_table_name_full; extern "C" const char* wsrep_get_sr_table_name(); extern "C" my_bool wsrep_get_debug(); extern "C" void wsrep_commit_ordered(MYSQL_THD thd); extern "C" my_bool wsrep_thd_is_applying(const MYSQL_THD thd); extern "C" ulong wsrep_OSU_method_get(const MYSQL_THD thd); extern "C" my_bool wsrep_thd_has_ignored_error(const MYSQL_THD thd); extern "C" void wsrep_thd_set_ignored_error(MYSQL_THD thd, my_bool val); extern "C" void wsrep_report_bf_lock_wait(const THD *thd, unsigned long long trx_id); /* declare parallel applying unsafety for the THD */ extern "C" void wsrep_thd_set_PA_unsafe(MYSQL_THD thd); extern "C" uint32 wsrep_get_domain_id(); #endif #endif /* MYSQL_SERVICE_WSREP_INCLUDED */
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