Here comes a nasty patch, although I am not ready to push it yet. I will

first pull, merge,test, and get it to work.

The main change is the new replication code - now we have two slave threads
SQL thread and I/O thread. I have also re-written a lot of the code to 
prepare for multi-master implementation. 

I also documented IO_CACHE quite extensively and to some extend, THD class.


Makefile.am:
  moved tags target script into a separate file
include/my_sys.h:
  fixes in IO_CACHE for SEQ_READ_APPEND + some documentation
libmysqld/lib_sql.cc:
  updated replication locks, but now I see I did it wrong and it won't compile. Will fix
  before the push.
mysql-test/r/rpl000014.result:
  test result update
mysql-test/r/rpl000015.result:
  test result update
mysql-test/r/rpl000016.result:
  test result update
mysql-test/r/rpl_log.result:
  test result update
mysql-test/t/rpl000016-slave.sh:
  remove relay logs
mysql-test/t/rpl000017-slave.sh:
  remove relay logs
mysql-test/t/rpl_log.test:
  updated test
mysys/mf_iocache.c:
  IO_CACHE updates to make replication work
mysys/mf_iocache2.c:
  IO_CACHE update to make replication work
mysys/thr_mutex.c:
  cosmetic change
sql/item_func.cc:
  new replication code
sql/lex.h:
  new replication
sql/log.cc:
  new replication
sql/log_event.cc:
  new replication
sql/log_event.h:
  new replication
sql/mini_client.cc:
  new replication
sql/mini_client.h:
  new replication
sql/mysql_priv.h:
  new replication
sql/mysqld.cc:
  new replication
sql/repl_failsafe.cc:
  new replication
sql/slave.cc:
  new replication
sql/slave.h:
  new replication
sql/sql_class.cc:
  new replication
sql/sql_class.h:
  new replication
sql/sql_lex.h:
  new replication
sql/sql_parse.cc:
  new replication
sql/sql_repl.cc:
  new replication
sql/sql_repl.h:
  new replication
sql/sql_show.cc:
  new replication
sql/sql_yacc.yy:
  new replication
sql/stacktrace.c:
  more robust stack tracing
sql/structs.h:
  new replication code
BitKeeper/etc/ignore:
  Added mysql-test/r/rpl000002.eval mysql-test/r/rpl000014.eval mysql-test/r/rpl000015.eval mysql-test/r/rpl000016.eval mysql-test/r/slave-running.eval mysql-test/r/slave-stopped.eval to the ignore list

1 files changed, 7 insertions, 3 deletions

diff --git a/sql/mysql_priv.h b/sql/mysql_priv.h
index e0e85145c52..12a043250a5 100644
--- a/sql/mysql_priv.h
+++ b/sql/mysql_priv.h
@@ -519,6 +519,10 @@ void sql_print_error(const char *format,...)
 	        __attribute__ ((format (printf, 1, 2)));
 bool fn_format_relative_to_data_home(my_string to, const char *name,
 				     const char *dir, const char *extension);
+void open_log(MYSQL_LOG *log, const char *hostname,
+	     const char *opt_name, const char *extension,
+	      enum_log_type type, bool read_append = 0,
+	      bool no_auto_events = 0);
 
 extern uint32 server_id;
 extern char *mysql_data_home,server_version[SERVER_VERSION_LENGTH],
@@ -550,9 +554,8 @@ extern pthread_mutex_t LOCK_mysql_create_db,LOCK_Acl,LOCK_open,
        LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,
        LOCK_grant, LOCK_error_log, LOCK_delayed_insert,
        LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone,
-       LOCK_binlog_update, LOCK_slave, LOCK_server_id, LOCK_slave_list;
-extern pthread_cond_t COND_refresh,COND_thread_count, COND_binlog_update,
-                      COND_slave_stopped, COND_slave_start;
+       LOCK_server_id, LOCK_slave_list, LOCK_active_mi;
+extern pthread_cond_t COND_refresh,COND_thread_count;
 extern pthread_attr_t connection_attrib;
 extern bool opt_endinfo, using_udf_functions, locked_in_memory,
             opt_using_transactions, use_temp_pool, mysql_embedded;
@@ -588,6 +591,7 @@ extern struct show_var_st init_vars[];
 extern struct show_var_st status_vars[];
 extern enum db_type default_table_type;
 extern enum enum_tx_isolation default_tx_isolation;
+extern char glob_hostname[FN_REFLEN];
 
 #ifndef __WIN__
 extern pthread_t signal_thread;