Added last_errno and last_error to show slave status

slave will skip the first SQL_SLAVE_SKIP_COUNTER events on start - 
this is needed to recover from broken replication when the next log
event(s) should just be skipped.
Rotate binlogs when max_binlog_size is reached


include/my_sys.h:
  added my_snprintf()
include/mysqld_error.h:
  more error messages
mysql-test/r/rpl000014.result:
  updated results for new SHOW SLAVE STATUS format
mysql-test/r/rpl000015.result:
  update for SHOW SLAVE STATUS
mysql-test/r/rpl000016.result:
  update for additions to the test
mysql-test/t/rpl000016.test:
  test max_binlog_size and slave_skip_counter
mysys/my_vsnprintf.c:
  added my_snprintf()
sql/gen_lex_hash.cc:
  old values could not do it
sql/lex.h:
  updates for SQL_SLAVE_SKIP_COUNTER
sql/log.cc:
  rotate binlogs when max_binlog_size is reached
sql/mysqld.cc:
  added max_binlog_size
sql/share/czech/errmsg.txt:
  new errors
sql/share/danish/errmsg.txt:
  new errors
sql/share/dutch/errmsg.txt:
  new errors
sql/share/english/errmsg.txt:
  new errors
sql/share/estonian/errmsg.txt:
  new errors
sql/share/french/errmsg.txt:
  new errors
sql/share/german/errmsg.txt:
  new errors
sql/share/greek/errmsg.txt:
  new errors
sql/share/hungarian/errmsg.txt:
  new errors
sql/share/italian/errmsg.txt:
  new errors
sql/share/japanese/errmsg.txt:
  new errors
sql/share/korean/errmsg.txt:
  new errors
sql/share/norwegian-ny/errmsg.txt:
  new errors
sql/share/norwegian/errmsg.txt:
  new errors
sql/share/polish/errmsg.txt:
  new errors
sql/share/portuguese/errmsg.txt:
  new errors
sql/share/romanian/errmsg.txt:
  new errors
sql/share/russian/errmsg.txt:
  new errors, translated untranslated messages
sql/share/slovak/errmsg.txt:
  new errors
sql/share/spanish/errmsg.txt:
  new errors
sql/share/swedish/errmsg.txt:
  new errors
sql/slave.cc:
  updates for slave_skip_counter and extension to show slave status
sql/slave.h:
  slave_skip_counter
sql/sql_repl.cc:
  use error messages from errmsg.txt
sql/sql_yacc.yy:
  skip_slave_counter

1 files changed, 12 insertions, 12 deletions

diff --git a/sql/sql_repl.cc b/sql/sql_repl.cc
index f4564c025e0..edf4727c2f1 100644
--- a/sql/sql_repl.cc
+++ b/sql/sql_repl.cc
@@ -519,34 +519,34 @@ int start_slave(THD* thd , bool net_report)
 {
   if(!thd) thd = current_thd;
   NET* net = &thd->net;
-  const char* err = 0;
+  int slave_errno = 0;
   if (check_access(thd, PROCESS_ACL, any_db))
     return 1;
   pthread_mutex_lock(&LOCK_slave);
   if(!slave_running)
     {
       if(init_master_info(&glob_mi))
-	err = "Could not initialize master info";
+	slave_errno = ER_MASTER_INFO;
       else if(server_id_supplied && *glob_mi.host)
 	{
 	  pthread_t hThread;
 	  if(pthread_create(&hThread, &connection_attrib, handle_slave, 0))
 	    {
-	      err = "cannot create slave thread";
+	      slave_errno = ER_SLAVE_THREAD;
 	    }
 	  while(!slave_running) // slave might already be running by now
 	   pthread_cond_wait(&COND_slave_start, &LOCK_slave);
 	}
       else
-	err = "Master host not set, or server id not configured";
+	slave_errno = ER_BAD_SLAVE;
     }
   else
-    err =  "Slave already running";
+    slave_errno = ER_SLAVE_MUST_STOP;
 
   pthread_mutex_unlock(&LOCK_slave);
-  if(err)
+  if(slave_errno)
     {
-      if(net_report) send_error(net, 0, err);
+      if(net_report) send_error(net, slave_errno);
       return 1;
     }
   else if(net_report)
@@ -559,8 +559,8 @@ int stop_slave(THD* thd, bool net_report )
 {
   if(!thd) thd = current_thd;
   NET* net = &thd->net;
-  const char* err = 0;
-
+  int slave_errno = 0;
+  
   if (check_access(thd, PROCESS_ACL, any_db))
     return 1;
 
@@ -576,14 +576,14 @@ int stop_slave(THD* thd, bool net_report )
       pthread_cond_wait(&COND_slave_stopped, &LOCK_slave);
   }
   else
-    err = "Slave is not running";
+    slave_errno = ER_SLAVE_NOT_RUNNING;
 
   pthread_mutex_unlock(&LOCK_slave);
   thd->proc_info = 0;
 
-  if(err)
+  if(slave_errno)
     {
-     if(net_report) send_error(net, 0, err);
+     if(net_report) send_error(net, slave_errno);
      return 1;
     }
   else if(net_report)