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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
commit | a175314c3e5827eb193872241446f2f8f5c9d33c (patch) | |
tree | cd3d60ca99ae00829c52a6ca79150a5b6e62528b /sql/wsrep_binlog.h | |
parent | Initial commit. (diff) | |
download | mariadb-10.5-upstream.tar.xz mariadb-10.5-upstream.zip |
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sql/wsrep_binlog.h')
-rw-r--r-- | sql/wsrep_binlog.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/sql/wsrep_binlog.h b/sql/wsrep_binlog.h new file mode 100644 index 00000000..252fbe60 --- /dev/null +++ b/sql/wsrep_binlog.h @@ -0,0 +1,103 @@ +/* Copyright (C) 2013 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_BINLOG_H +#define WSREP_BINLOG_H + +#include "my_global.h" +#include "sql_class.h" // THD, IO_CACHE + +#define HEAP_PAGE_SIZE 65536 /* 64K */ +#define WSREP_MAX_WS_SIZE 2147483647 /* 2GB */ + +/* + Write the contents of a cache to a memory buffer. + + This function quite the same as MYSQL_BIN_LOG::write_cache(), + with the exception that here we write in buffer instead of log file. + */ +int wsrep_write_cache_buf(IO_CACHE *cache, uchar **buf, size_t *buf_len); + +/* + Write the contents of a cache to wsrep provider. + + This function quite the same as MYSQL_BIN_LOG::write_cache(), + with the exception that here we write in buffer instead of log file. + + @param len total amount of data written + @return wsrep error status + */ +int wsrep_write_cache(THD* thd, + IO_CACHE* cache, + size_t* len); + +/* Dump replication buffer to disk */ +void wsrep_dump_rbr_buf(THD *thd, const void* rbr_buf, size_t buf_len); + +/* Dump replication buffer along with header to a file */ +void wsrep_dump_rbr_buf_with_header(THD *thd, const void *rbr_buf, + size_t buf_len); + +/** + Write a skip event into binlog. + + @param thd Thread object pointer + @return Zero in case of success, non-zero on failure. +*/ +int wsrep_write_skip_event(THD* thd); + +/* + Write dummy event into binlog in place of unused GTID. + The binlog write is done in thd context. +*/ +int wsrep_write_dummy_event_low(THD *thd, const char *msg); +/* + Write dummy event to binlog in place of unused GTID and + commit. The binlog write and commit are done in temporary + thd context, the original thd state is not altered. +*/ +int wsrep_write_dummy_event(THD* thd, const char *msg); + +void wsrep_register_binlog_handler(THD *thd, bool trx); + +/** + Return true if committing THD will write to binlog during commit. + This is the case for: + - Local THD, binlog is open + - Replaying THD, binlog is open + - Applier THD, log-slave-updates is enabled +*/ +bool wsrep_commit_will_write_binlog(THD *thd); + +/** + Register THD for group commit. The wsrep_trx must be in committing state, + i.e. the call must be done after wsrep_before_commit() but before + commit order is released. + + This call will release commit order critical section if it is + determined that the commit will go through binlog group commit. + */ +void wsrep_register_for_group_commit(THD *thd); + +/** + Deregister THD from group commit. The wsrep_trx must be in committing state, + as for wsrep_register_for_group_commit() above. + + This call must be used only for THDs which will not go through + binlog group commit. +*/ +void wsrep_unregister_from_group_commit(THD *thd); + +#endif /* WSREP_BINLOG_H */ |