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service_wsrep.h
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#ifndef MYSQL_SERVICE_WSREP_INCLUDED /* Copyright (c) 2015 MariaDB Corporation Ab 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 */ /** @file wsrep service Interface to WSREP functionality in the server. For engines that want to support galera. */ #ifdef __cplusplus extern "C" { #endif enum wsrep_conflict_state { NO_CONFLICT, MUST_ABORT, ABORTING, ABORTED, MUST_REPLAY, REPLAYING, RETRY_AUTOCOMMIT, CERT_FAILURE, }; enum wsrep_exec_mode { /* Transaction processing before replication. */ LOCAL_STATE, /* Slave thread applying write sets from other nodes or replaying thread. */ REPL_RECV, /* Total-order-isolation mode. */ TOTAL_ORDER, /* Transaction procession after it has been replicated in prepare stage and has passed certification. */ LOCAL_COMMIT }; enum wsrep_query_state { QUERY_IDLE, QUERY_EXEC, QUERY_COMMITTING, QUERY_EXITING, QUERY_ROLLINGBACK, }; enum wsrep_trx_status { WSREP_TRX_OK, WSREP_TRX_CERT_FAIL, /* certification failure, must abort */ WSREP_TRX_SIZE_EXCEEDED, /* trx size exceeded */ WSREP_TRX_ERROR, /* native mysql error */ }; struct xid_t; struct wsrep; struct wsrep_ws_handle; struct wsrep_buf; extern struct wsrep_service_st { struct wsrep * (*get_wsrep_func)(); my_bool (*get_wsrep_certify_nonPK_func)(); my_bool (*get_wsrep_debug_func)(); my_bool (*get_wsrep_drupal_282555_workaround_func)(); my_bool (*get_wsrep_recovery_func)(); my_bool (*get_wsrep_load_data_splitting_func)(); my_bool (*get_wsrep_log_conflicts_func)(); long (*get_wsrep_protocol_version_func)(); my_bool (*wsrep_aborting_thd_contains_func)(THD *thd); void (*wsrep_aborting_thd_enqueue_func)(THD *thd); bool (*wsrep_consistency_check_func)(THD *thd); int (*wsrep_is_wsrep_xid_func)(const struct xid_t *xid); void (*wsrep_lock_rollback_func)(); int (*wsrep_on_func)(MYSQL_THD); void (*wsrep_post_commit_func)(THD* thd, bool all); bool (*wsrep_prepare_key_func)(const unsigned char*, size_t, const unsigned char*, size_t, struct wsrep_buf*, size_t*); enum wsrep_trx_status (*wsrep_run_wsrep_commit_func)(THD *thd, bool all); void (*wsrep_thd_LOCK_func)(THD *thd); void (*wsrep_thd_UNLOCK_func)(THD *thd); void (*wsrep_thd_awake_func)(THD *thd, my_bool signal); enum wsrep_conflict_state (*wsrep_thd_conflict_state_func)(MYSQL_THD, my_bool); const char * (*wsrep_thd_conflict_state_str_func)(THD *thd); enum wsrep_exec_mode (*wsrep_thd_exec_mode_func)(THD *thd); const char * (*wsrep_thd_exec_mode_str_func)(THD *thd); enum wsrep_conflict_state (*wsrep_thd_get_conflict_state_func)(MYSQL_THD); my_bool (*wsrep_thd_is_BF_func)(MYSQL_THD , my_bool); my_bool (*wsrep_thd_is_wsrep_func)(MYSQL_THD thd); char * (*wsrep_thd_query_func)(THD *thd); enum wsrep_query_state (*wsrep_thd_query_state_func)(THD *thd); const char * (*wsrep_thd_query_state_str_func)(THD *thd); int (*wsrep_thd_retry_counter_func)(THD *thd); void (*wsrep_thd_set_conflict_state_func)(THD *thd, enum wsrep_conflict_state state); bool (*wsrep_thd_ignore_table_func)(THD *thd); long long (*wsrep_thd_trx_seqno_func)(THD *thd); struct wsrep_ws_handle * (*wsrep_thd_ws_handle_func)(THD *thd); int (*wsrep_trx_is_aborting_func)(MYSQL_THD thd); int (*wsrep_trx_order_before_func)(MYSQL_THD, MYSQL_THD); void (*wsrep_unlock_rollback_func)(); } *wsrep_service; #ifdef MYSQL_DYNAMIC_PLUGIN #define get_wsrep() wsrep_service->get_wsrep_func() #define get_wsrep_certify_nonPK() wsrep_service->get_wsrep_certify_nonPK_func() #define get_wsrep_debug() wsrep_service->get_wsrep_debug_func() #define get_wsrep_drupal_282555_workaround() wsrep_service->get_wsrep_drupal_282555_workaround_func() #define get_wsrep_recovery() wsrep_service->get_wsrep_recovery_func() #define get_wsrep_load_data_splitting() wsrep_service->get_wsrep_load_data_splitting_func() #define get_wsrep_log_conflicts() wsrep_service->get_wsrep_log_conflicts_func() #define get_wsrep_protocol_version() wsrep_service->get_wsrep_protocol_version_func() #define wsrep_aborting_thd_contains(T) wsrep_service->wsrep_aborting_thd_contains_func(T) #define wsrep_aborting_thd_enqueue(T) wsrep_service->wsrep_aborting_thd_enqueue_func(T) #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_lock_rollback() wsrep_service->wsrep_lock_rollback_func() #define wsrep_on(X) wsrep_service->wsrep_on_func(X) #define wsrep_post_commit(T,A) wsrep_service->wsrep_post_commit_func(T,A) #define wsrep_prepare_key(A,B,C,D,E,F) wsrep_service->wsrep_prepare_key_func(A,B,C,D,E,F) #define wsrep_run_wsrep_commit(T,A) wsrep_service->wsrep_run_wsrep_commit_func(T,A) #define wsrep_thd_LOCK(T) wsrep_service->wsrep_thd_LOCK_func(T) #define wsrep_thd_UNLOCK(T) wsrep_service->wsrep_thd_UNLOCK_func(T) #define wsrep_thd_awake(T,S) wsrep_service->wsrep_thd_awake_func(T,S) #define wsrep_thd_conflict_state(T,S) wsrep_service->wsrep_thd_conflict_state_func(T,S) #define wsrep_thd_conflict_state_str(T) wsrep_service->wsrep_thd_conflict_state_str_func(T) #define wsrep_thd_exec_mode(T) wsrep_service->wsrep_thd_exec_mode_func(T) #define wsrep_thd_exec_mode_str(T) wsrep_service->wsrep_thd_exec_mode_str_func(T) #define wsrep_thd_get_conflict_state(T) wsrep_service->wsrep_thd_get_conflict_state_func(T) #define wsrep_thd_is_BF(T,S) wsrep_service->wsrep_thd_is_BF_func(T,S) #define wsrep_thd_is_wsrep(T) wsrep_service->wsrep_thd_is_wsrep_func(T) #define wsrep_thd_query(T) wsrep_service->wsrep_thd_query_func(T) #define wsrep_thd_query_state(T) wsrep_service->wsrep_thd_query_state_func(T) #define wsrep_thd_query_state_str(T) wsrep_service->wsrep_thd_query_state_str_func(T) #define wsrep_thd_retry_counter(T) wsrep_service->wsrep_thd_retry_counter_func(T) #define wsrep_thd_set_conflict_state(T,S) wsrep_service->wsrep_thd_set_conflict_state_func(T,S) #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_thd_ws_handle(T) wsrep_service->wsrep_thd_ws_handle_func(T) #define wsrep_trx_is_aborting(T) wsrep_service->wsrep_trx_is_aborting_func(T) #define wsrep_trx_order_before(T1,T2) wsrep_service->wsrep_trx_order_before_func(T1,T2) #define wsrep_unlock_rollback() wsrep_service->wsrep_unlock_rollback_func() #define wsrep_debug get_wsrep_debug() #define wsrep_log_conflicts get_wsrep_log_conflicts() #define wsrep_certify_nonPK get_wsrep_certify_nonPK() #define wsrep_load_data_splitting get_wsrep_load_data_splitting() #define wsrep_drupal_282555_workaround get_wsrep_drupal_282555_workaround() #define wsrep_recovery get_wsrep_recovery() #define wsrep_protocol_version get_wsrep_protocol_version() #else extern my_bool 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; bool wsrep_consistency_check(THD *thd); bool wsrep_prepare_key(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); char *wsrep_thd_query(THD *thd); const char *wsrep_thd_conflict_state_str(THD *thd); const char *wsrep_thd_exec_mode_str(THD *thd); const char *wsrep_thd_query_state_str(THD *thd); enum wsrep_conflict_state wsrep_thd_conflict_state(MYSQL_THD thd, my_bool sync); enum wsrep_conflict_state wsrep_thd_get_conflict_state(MYSQL_THD thd); enum wsrep_exec_mode wsrep_thd_exec_mode(THD *thd); enum wsrep_query_state wsrep_thd_query_state(THD *thd); enum wsrep_trx_status wsrep_run_wsrep_commit(THD *thd, bool all); int wsrep_is_wsrep_xid(const struct xid_t* xid); int wsrep_on(MYSQL_THD thd); int wsrep_thd_retry_counter(THD *thd); int wsrep_trx_is_aborting(MYSQL_THD thd); int wsrep_trx_order_before(MYSQL_THD thd1, MYSQL_THD thd2); long get_wsrep_protocol_version(); long long wsrep_thd_trx_seqno(THD *thd); my_bool get_wsrep_certify_nonPK(); my_bool get_wsrep_debug(); my_bool get_wsrep_drupal_282555_workaround(); my_bool get_wsrep_recovery(); my_bool get_wsrep_load_data_splitting(); my_bool get_wsrep_log_conflicts(); my_bool wsrep_aborting_thd_contains(THD *thd); my_bool wsrep_thd_is_BF(MYSQL_THD thd, my_bool sync); my_bool wsrep_thd_is_wsrep(MYSQL_THD thd); struct wsrep *get_wsrep(); struct wsrep_ws_handle *wsrep_thd_ws_handle(THD *thd); void wsrep_aborting_thd_enqueue(THD *thd); void wsrep_lock_rollback(); void wsrep_post_commit(THD* thd, bool all); void wsrep_thd_LOCK(THD *thd); void wsrep_thd_UNLOCK(THD *thd); void wsrep_thd_awake(THD *thd, my_bool signal); void wsrep_thd_set_conflict_state(THD *thd, enum wsrep_conflict_state state); bool wsrep_thd_ignore_table(THD *thd); void wsrep_unlock_rollback(); #endif #ifdef __cplusplus } #endif #define MYSQL_SERVICE_WSREP_INCLUDED #endif