Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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 */