diff options
Diffstat (limited to 'sql/log_event.h')
| -rw-r--r-- | sql/log_event.h | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/sql/log_event.h b/sql/log_event.h index 43bc6ed4437..eb286492a40 100644 --- a/sql/log_event.h +++ b/sql/log_event.h @@ -1,5 +1,5 @@ /* - Copyright (c) 2000, 2010, Oracle and/or its affiliates. + Copyright (c) 2000, 2013, Oracle and/or its affiliates. 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 @@ -952,8 +952,34 @@ public: pthread_mutex_t* log_lock, const Format_description_log_event *description_event); + + /** + Reads an event from a binlog or relay log. Used by the dump thread + this method reads the event into a raw buffer without parsing it. + + @Note If mutex is 0, the read will proceed without mutex. + + @Note If a log name is given than the method will check if the + given binlog is still active. + + @param[in] file log file to be read + @param[out] packet packet to hold the event + @param[in] lock the lock to be used upon read + @param[in] log_file_name_arg the log's file name + @param[out] is_binlog_active is the current log still active + + @retval 0 success + @retval LOG_READ_EOF end of file, nothing was read + @retval LOG_READ_BOGUS malformed event + @retval LOG_READ_IO io error while reading + @retval LOG_READ_MEM packet memory allocation failed + @retval LOG_READ_TRUNC only a partial event could be read + @retval LOG_READ_TOO_LARGE event too large + */ static int read_log_event(IO_CACHE* file, String* packet, - pthread_mutex_t* log_lock); + pthread_mutex_t* log_lock, + const char *log_file_name_arg= NULL, + bool* is_binlog_active= NULL); /* init_show_field_list() prepares the column names and types for the output of SHOW BINLOG EVENTS; it is used only by SHOW BINLOG @@ -2513,6 +2539,7 @@ public: bool is_null; #ifndef MYSQL_CLIENT bool deferred; + query_id_t query_id; User_var_log_event(THD* thd_arg, char *name_arg, uint name_len_arg, char *val_arg, ulong val_len_arg, Item_result type_arg, uint charset_number_arg) @@ -2537,7 +2564,11 @@ public: and which case the applier adjusts execution path. */ bool is_deferred() { return deferred; } - void set_deferred() { deferred= true; } + /* + In case of the deffered applying the variable instance is flagged + and the parsing time query id is stored to be used at applying time. + */ + void set_deferred(query_id_t qid) { deferred= true; query_id= qid; } #endif bool is_valid() const { return name != 0; } |