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WL#912 (more user control on relay logs):

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FLUSH LOGS now rotates relay logs,
and a new variable max_relay_log_size.
Plus a very small bit of code cleaning.
This commit is contained in:
guilhem@mysql.com
2003-07-06 17:59:54 +02:00
parent ace8a06323
commit 9c73d91d54
15 changed files with 335 additions and 45 deletions
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18
sql/sql_class.h
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@ -84,6 +84,17 @@ class MYSQL_LOG {
bool no_rotate;
bool need_start_event;
bool no_auto_events; // for relay binlog
/*
The max size before rotation (usable only if log_type == LOG_BIN: binary
logs and relay logs).
For a binlog, max_size should be max_binlog_size.
For a relay log, it should be max_relay_log_size if this is non-zero,
max_binlog_size otherwise.
max_size is set in init(), and dynamically changed (when one does SET
GLOBAL MAX_BINLOG_SIZE|MAX_RELAY_LOG_SIZE) by fix_max_binlog_size and
fix_max_relay_log_size).
*/
ulong max_size;
friend class Log_event;
public:
@ -105,17 +116,18 @@ public:
bytes_written=0;
DBUG_VOID_RETURN;
}
void set_max_size(ulong max_size_arg);
void signal_update() { pthread_cond_broadcast(&update_cond);}
void wait_for_update(THD* thd);
void set_need_start_event() { need_start_event = 1; }
void init(enum_log_type log_type_arg,
enum cache_type io_cache_type_arg = WRITE_CACHE,
bool no_auto_events_arg = 0);
enum cache_type io_cache_type_arg,
bool no_auto_events_arg, ulong max_size);
void cleanup();
bool open(const char *log_name,enum_log_type log_type,
const char *new_name, const char *index_file_name_arg,
enum cache_type io_cache_type_arg,
bool no_auto_events_arg);
bool no_auto_events_arg, ulong max_size);
void new_file(bool need_lock= 1);
bool write(THD *thd, enum enum_server_command command,
const char *format,...);