Merge riska.(none):/home/sven/bkroot/5.1-new-rpl

into  riska.(none):/home/sven/bk/b32407-5.1-new-rpl-mysqlbinlog_base64

client/client_priv.h

@@ -77,7 +77,7 @@ enum options_client
   OPT_SLAP_POST_SYSTEM,
   OPT_SLAP_COMMIT,
   OPT_SLAP_DETACH,
-  OPT_MYSQL_REPLACE_INTO, OPT_BASE64_OUTPUT, OPT_SERVER_ID,
+  OPT_MYSQL_REPLACE_INTO, OPT_BASE64_OUTPUT_MODE, OPT_SERVER_ID,
   OPT_FIX_TABLE_NAMES, OPT_FIX_DB_NAMES, OPT_SSL_VERIFY_SERVER_CERT,
   OPT_DEBUG_INFO, OPT_DEBUG_CHECK, OPT_COLUMN_TYPES, OPT_ERROR_LOG_FILE,
   OPT_WRITE_BINLOG, OPT_DUMP_DATE,

mysql-test/r/mysqlbinlog2.result

@@ -106,6 +106,7 @@ ROLLBACK /* added by mysqlbinlog */;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
+ROLLBACK/*!*/;
 SET INSERT_ID=4/*!*/;
 use test/*!*/;
 SET TIMESTAMP=1579609946/*!*/;
@@ -152,6 +153,7 @@ ROLLBACK /* added by mysqlbinlog */;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
+ROLLBACK/*!*/;
 SET INSERT_ID=4/*!*/;
 use test/*!*/;
 SET TIMESTAMP=1579609946/*!*/;
@@ -299,6 +301,7 @@ ROLLBACK /* added by mysqlbinlog */;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
+ROLLBACK/*!*/;
 SET INSERT_ID=4/*!*/;
 use test/*!*/;
 SET TIMESTAMP=1579609946/*!*/;

mysql-test/suite/binlog/r/binlog_base64_flag.result

+==== Test BUG#32407 ====
+select * from t1;
+a
+1
+1
+==== Test BINLOG statement w/o FD event ====
+BINLOG '
+SVtYRxMBAAAAKQAAADQBAAAAABAAAAAAAAAABHRlc3QAAnQxAAEDAAE=
+SVtYRxcBAAAAIgAAAFYBAAAQABAAAAAAAAEAAf/+AgAAAA==
+';
+ERROR HY000: The BINLOG statement of type `Table_map` was not preceded by a format description BINLOG statement.
+select * from t1;
+a
+1
+1
+==== Test BINLOG statement with FD event ====
+BINLOG '
+ODdYRw8BAAAAZgAAAGoAAAABAAQANS4xLjIzLXJjLWRlYnVnLWxvZwAAAAAAAAAAAAAAAAAAAAAA
+AAAAAAAAAAAAAAAAAAA4N1hHEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
+';
+BINLOG '
+TFtYRxMBAAAAKQAAAH8BAAAAABAAAAAAAAAABHRlc3QAAnQxAAEDAAE=
+TFtYRxcBAAAAIgAAAKEBAAAQABAAAAAAAAEAAf/+AwAAAA==
+';
+select * from t1;
+a
+1
+1
+3
+==== Test --base64-output=never on a binlog with row events ====
+/*!40019 SET @@session.max_insert_delayed_threads=0*/;
+/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
+DELIMITER /*!*/;
+# at 4
+#ROLLBACK/*!*/;
+# at 102
+#use test/*!*/;
+SET TIMESTAMP=1196959712/*!*/;
+SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
+SET @@session.sql_mode=0/*!*/;
+/*!\C latin1 *//*!*/;
+SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=8/*!*/;
+create table t1 (a int) engine= myisam/*!*/;
+# at 203
+==== Test non-matching FD event and Row event ====
+BINLOG '
+4CdYRw8BAAAAYgAAAGYAAAAAAAQANS4xLjE1LW5kYi02LjEuMjQtZGVidWctbG9nAAAAAAAAAAAA
+AAAAAAAAAAAAAAAAAADgJ1hHEzgNAAgAEgAEBAQEEgAATwAEGggICAg=
+';
+BINLOG '
+Dl1YRxMBAAAAKQAAADQBAAAAABAAAAAAAAAABHRlc3QAAnQxAAEDAAE=
+Dl1YRxcBAAAAIgAAAFYBAAAQABAAAAAAAAEAAf/+BQAAAA==
+';
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use
+select * from t1;
+a
+1
+1
+3
+drop table t1;

mysql-test/suite/binlog/t/binlog_base64_flag.test

+# This test case verifies that the mysqlbinlog --base64-output=X flags
+# work as expected, and that BINLOG statements with row events fail if
+# they are not preceded by BINLOG statements with Format description
+# events.
+#
+# See also BUG#32407.
+
+
+# Test to show BUG#32407.  This reads a binlog created with the
+# mysql-5.1-telco-6.1 tree, specifically at the tag
+# mysql-5.1.15-ndb-6.1.23, and applies it to the database.  The test
+# should fail before BUG#32407 was fixed and succeed afterwards.
+--echo ==== Test BUG#32407 ====
+
+# The binlog contains row events equivalent to:
+# CREATE TABLE t1 (a int) engine = myisam
+# INSERT INTO t1 VALUES (1), (1)
+exec $MYSQL_BINLOG suite/binlog/std_data/binlog-bug32407.000001 | $MYSQL;
+# The above line should succeed and t1 should contain two ones
+select * from t1;
+
+
+# Test that a BINLOG statement encoding a row event fails unless a
+# Format_description_event as been supplied with an earlier BINLOG
+# statement.
+--echo ==== Test BINLOG statement w/o FD event ====
+
+# This is a binlog statement consisting of one Table_map_log_event and
+# one Write_rows_log_event.  Together, they correspond to the
+# following query:
+# INSERT INTO TABLE test.t1 VALUES (2)
+
+error ER_NO_FORMAT_DESCRIPTION_EVENT_BEFORE_BINLOG_STATEMENT;
+BINLOG '
+SVtYRxMBAAAAKQAAADQBAAAAABAAAAAAAAAABHRlc3QAAnQxAAEDAAE=
+SVtYRxcBAAAAIgAAAFYBAAAQABAAAAAAAAEAAf/+AgAAAA==
+';
+# The above line should fail and 2 should not be in the table
+select * from t1;
+
+
+# Test that it works to read a Format_description_log_event with a
+# BINLOG statement, followed by a row-event in base64 from the same
+# version.
+--echo ==== Test BINLOG statement with FD event ====
+
+# This is a binlog statement containing a Format_description_log_event
+# from the same version as the Table_map and Write_rows_log_event.
+BINLOG '
+ODdYRw8BAAAAZgAAAGoAAAABAAQANS4xLjIzLXJjLWRlYnVnLWxvZwAAAAAAAAAAAAAAAAAAAAAA
+AAAAAAAAAAAAAAAAAAA4N1hHEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
+';
+
+# This is a Table_map_log_event+Write_rows_log_event corresponding to:
+# INSERT INTO TABLE test.t1 VALUES (3)
+BINLOG '
+TFtYRxMBAAAAKQAAAH8BAAAAABAAAAAAAAAABHRlc3QAAnQxAAEDAAE=
+TFtYRxcBAAAAIgAAAKEBAAAQABAAAAAAAAEAAf/+AwAAAA==
+';
+# The above line should succeed and 3 should be in the table
+select * from t1;
+
+
+# Test that mysqlbinlog stops with an error message when the
+# --base64-output=never flag is used on a binlog with base64 events.
+--echo ==== Test --base64-output=never on a binlog with row events ====
+
+# mysqlbinlog should fail
+--replace_regex /#[0-9][0-9][0-9][0-9][0-9][0-9] .*/#/
+error 1;
+exec $MYSQL_BINLOG --base64-output=never suite/binlog/std_data/binlog-bug32407.000001;
+# the above line should output the query log event and then stop
+
+
+# Test that the following fails cleanly: "First, read a
+# Format_description event which has N event types. Then, read an
+# event of type M>N"
+--echo ==== Test non-matching FD event and Row event ====
+
+# This is the Format_description_log_event from
+# binlog-bug32407.000001, encoded in base64. It contains only the old
+# row events (number of event types is 22)
+BINLOG '
+4CdYRw8BAAAAYgAAAGYAAAAAAAQANS4xLjE1LW5kYi02LjEuMjQtZGVidWctbG9nAAAAAAAAAAAA
+AAAAAAAAAAAAAAAAAADgJ1hHEzgNAAgAEgAEBAQEEgAATwAEGggICAg=
+';
+
+# The following is a Write_rows_log_event with event type 23, i.e.,
+# not supported by the Format_description_log_event above.  It
+# corresponds to the following query:
+# INSERT INTO t1 VALUES (5)
+error 1149;
+BINLOG '
+Dl1YRxMBAAAAKQAAADQBAAAAABAAAAAAAAAABHRlc3QAAnQxAAEDAAE=
+Dl1YRxcBAAAAIgAAAFYBAAAQABAAAAAAAAEAAf/+BQAAAA==
+';
+# the above line should fail and 5 should not be in the binlog.
+select * from t1;
+
+
+# clean up
+drop table t1;

mysql-test/suite/binlog/t/disabled.def

@@ -9,3 +9,4 @@
 #  Do not use any TAB characters for whitespace.
 #
 ##############################################################################
+binlog_base64_flag : BUG#33247 2007-12-14 Sven: mysqlbinlog does not clean up after itself on termination. When compiled in debug mode, this test generates lots of warnings for memory leaks.

mysql-test/suite/rpl/r/rpl_bug31076.result

@@ -40,6 +40,10 @@ KEY `data` (`data`)
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 BINLOG '
+O1ZVRw8BAAAAZgAAAGoAAAAAAAQANS4xLjIzLXJjLWRlYnVnLWxvZwAAAAAAAAAAAAAAAAAAAAAA
+AAAAAAAAAAAAAAAAAAA7VlVHEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
+'/*!*/;
+BINLOG '
 Bk3vRhO0AQAAOAAAALcLyQkAAJlXFwIAAAAABXRyYWNrAA12aXNpdHNfZXZlbnRzAAYJAwcPDwM=
 Bk3vRhe0AQAAWgAAABEMyQkQAJlXFwIAAAEABv/AIE4AvvVDAQZN70YAK0Rvd25sb2Fkcy9NeVNR
 TC00LjEvbXlzcWwtNC4xLjEyYS13aW4zMi56aXBPaAIC

mysql-test/suite/rpl/r/rpl_row_mysqlbinlog.result

@@ -155,6 +155,7 @@ c1	c3	c4	c5
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
+ROLLBACK/*!*/;
 use test/*!*/;
 SET TIMESTAMP=1000000000/*!*/;
 SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
@@ -295,6 +296,7 @@ ROLLBACK /* added by mysqlbinlog */;
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
+ROLLBACK/*!*/;
 use test/*!*/;
 SET TIMESTAMP=1000000000/*!*/;
 SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;

mysql-test/suite/rpl/t/rpl_bug31076.test

@@ -39,6 +39,24 @@ CREATE TABLE `visits_events` (
 /*!40019 SET @@session.max_insert_delayed_threads=0*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 --delimiter /*!*/;
+
+# at 4 (0x4)
+#071204 14:29:31 server id 1  end_log_pos 106 
+# Position  Timestamp   Type   Master ID        Size      Master Pos    Flags
+#        4 3b 56 55 47   0f   01 00 00 00   66 00 00 00   6a 00 00 00   00 00
+#       17 04 00 35 2e 31 2e 32 33  2d 72 63 2d 64 65 62 75 |..5.1.23.rc.debu|
+#       27 67 2d 6c 6f 67 00 00 00  00 00 00 00 00 00 00 00 |g.log...........|
+#       37 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 |................|
+#       47 00 00 00 00 3b 56 55 47  13 38 0d 00 08 00 12 00 |.....VUG.8......|
+#       57 04 04 04 04 12 00 00 53  00 04 1a 08 00 00 00 08 |.......S........|
+#       67 08 08 02                                         |...|
+#       Start: binlog v 4, server v 5.1.23-rc-debug-log created 071204 14:29:31 at startup
+
+BINLOG '
+O1ZVRw8BAAAAZgAAAGoAAAAAAAQANS4xLjIzLXJjLWRlYnVnLWxvZwAAAAAAAAAAAAAAAAAAAAAA
+AAAAAAAAAAAAAAAAAAA7VlVHEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
+'/*!*/;
+
 # at 164170623
 # at 164170679
 #7918 3:59:2 server id 436  end_log_pos 164170679 

mysql-test/t/mysqlbinlog2.test

@@ -42,7 +42,7 @@ select "--- Local --" as "";
 #
 
 --replace_regex /[[:<:]][0-9]{6} [0-9 ][0-9]:[0-9]{2}:[0-9]{2}[[:>:]]/{yymmdd} {HH:MM:SS}/  /=[0-9]+	/={integer}	/  /# at [0-9]+/# at {pos}/  /(pos:?) [0-9]+/\1 {pos}/  /binlog v [0-9]+, server v [^ ]* created/binlog v #, server v ## created/
---exec $MYSQL_BINLOG $MYSQLTEST_VARDIR/log/master-bin.000001 
+--exec $MYSQL_BINLOG --base64-output=never $MYSQLTEST_VARDIR/log/master-bin.000001 
 
 --disable_query_log
 select "--- offset --" as "";

sql/log_event.cc

@@ -491,9 +491,9 @@ static void print_set_option(IO_CACHE* file, uint32 bits_changed,
   Log_event::get_type_str()
 */
 
-const char* Log_event::get_type_str()
+const char* Log_event::get_type_str(Log_event_type type)
 {
-  switch(get_type_code()) {
+  switch(type) {
   case START_EVENT_V3:  return "Start_v3";
   case STOP_EVENT:   return "Stop";
   case QUERY_EVENT:  return "Query";
@@ -524,6 +524,11 @@ const char* Log_event::get_type_str()
   }
 }
 
+const char* Log_event::get_type_str()
+{
+  return get_type_str(get_type_code());
+}
+
 
 /*
   Log_event::Log_event()
@@ -1050,7 +1055,23 @@ Log_event* Log_event::read_log_event(const char* buf, uint event_len,
     DBUG_RETURN(NULL); // general sanity check - will fail on a partial read
   }
 
-  switch(buf[EVENT_TYPE_OFFSET]) {
+  uint event_type= buf[EVENT_TYPE_OFFSET];
+  if (event_type > description_event->number_of_event_types &&
+      event_type != FORMAT_DESCRIPTION_EVENT)
+  {
+    /*
+      It is unsafe to use the description_event if its post_header_len
+      array does not include the event type.
+    */
+    DBUG_PRINT("error", ("event type %d found, but the current "
+                         "Format_description_log_event supports only %d event "
+                         "types", event_type,
+                         description_event->number_of_event_types));
+    ev= NULL;
+  }
+  else
+  {
+    switch(event_type) {
     case QUERY_EVENT:
       ev  = new Query_log_event(buf, event_len, description_event, QUERY_EVENT);
       break;
@@ -1139,6 +1160,7 @@ Log_event* Log_event::read_log_event(const char* buf, uint event_len,
       ev= NULL;
       break;
     }
+  }
 
   DBUG_PRINT("read_event", ("%s(type_code: %d; event_len: %d)",
                             ev ? ev->get_type_str() : "<unknown>",
@@ -2604,6 +2626,14 @@ void Start_log_event_v3::print(FILE* file, PRINT_EVENT_INFO* print_event_info)
     my_b_printf(&cache,"ROLLBACK%s\n", print_event_info->delimiter);
 #endif
   }
+  if (temp_buf &&
+      print_event_info->base64_output_mode != BASE64_OUTPUT_NEVER &&
+      !print_event_info->short_form)
+  {
+    my_b_printf(&cache, "BINLOG '\n");
+    print_base64(&cache, print_event_info, FALSE);
+    print_event_info->printed_fd_event= TRUE;
+  }
   DBUG_VOID_RETURN;
 }
 #endif /* MYSQL_CLIENT */
@@ -5050,7 +5080,7 @@ Create_file_log_event::Create_file_log_event(const char* buf, uint len,
                    Load_log_event::get_data_size() +
                    create_file_header_len + 1);
     if (len < block_offset)
-      return;
+      DBUG_VOID_RETURN;
     block = (char*)buf + block_offset;
     block_len = len - block_offset;
   }

sql/log_event.h

@@ -567,6 +567,15 @@ class Format_description_log_event;
 class Relay_log_info;
 
 #ifdef MYSQL_CLIENT
+enum enum_base64_output_mode {
+  BASE64_OUTPUT_NEVER= 0,
+  BASE64_OUTPUT_AUTO= 1,
+  BASE64_OUTPUT_ALWAYS= 2,
+  BASE64_OUTPUT_UNSPEC= 3,
+  /* insert new output modes here */
+  BASE64_OUTPUT_MODE_COUNT
+};
+
 /*
   A structure for mysqlbinlog to know how to print events
 
@@ -600,7 +609,8 @@ typedef struct st_print_event_info
   st_print_event_info()
     :flags2_inited(0), sql_mode_inited(0),
      auto_increment_increment(1),auto_increment_offset(1), charset_inited(0),
-     lc_time_names_number(0), charset_database_number(0)
+     lc_time_names_number(0), charset_database_number(0),
+     base64_output_mode(BASE64_OUTPUT_UNSPEC), printed_fd_event(FALSE)
     {
       /*
         Currently we only use static PRINT_EVENT_INFO objects, so zeroed at
@@ -627,7 +637,14 @@ typedef struct st_print_event_info
 
   /* Settings on how to print the events */
   bool short_form;
-  bool base64_output;
+  enum_base64_output_mode base64_output_mode;
+  /*
+    This is set whenever a Format_description_event is printed.
+    Later, when an event is printed in base64, this flag is tested: if
+    no Format_description_event has been seen, it is unsafe to print
+    the base64 event, so an error message is generated.
+  */
+  bool printed_fd_event;
   my_off_t hexdump_from;
   uint8 common_header_len;
   char delimiter[16];
@@ -936,7 +953,13 @@ class Log_event
 				   const char **error,
                                    const Format_description_log_event
                                    *description_event);
-  /* returns the human readable name of the event's type */
+  /**
+    Returns the human readable name of the given event type.
+  */
+  static const char* get_type_str(Log_event_type type);
+  /**
+    Returns the human readable name of this event's type.
+  */
   const char* get_type_str();
 
   /* Return start of query time or current time */

sql/share/errmsg.txt

@@ -6116,3 +6116,6 @@ ER_CANT_CREATE_SROUTINE
   eng "Cannot create stored routine `%-.64s`. Check warnings"
 ER_SLAVE_AMBIGOUS_EXEC_MODE
   eng "Ambiguous slave modes combination. %s"
+
+ER_NO_FORMAT_DESCRIPTION_EVENT_BEFORE_BINLOG_STATEMENT
+  eng "The BINLOG statement of type `%s` was not preceded by a format description BINLOG statement."

sql/slave.cc

@@ -13,6 +13,17 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
+
+/**
+  @addtogroup Replication
+  @{
+
+  @file
+
+  @brief Code to run the io thread and the sql thread on the
+  replication slave.
+*/
+
 #include "mysql_priv.h"
 
 #include <mysql.h>
@@ -33,10 +44,6 @@
 
 #include "rpl_tblmap.h"
 
-int queue_event(Master_info* mi,const char* buf,ulong event_len);
-static Log_event* next_event(Relay_log_info* rli);
-
-
 #define FLAGSTR(V,F) ((V)&(F)?#F" ":"")
 
 #define MAX_SLAVE_RETRY_PAUSE 5
@@ -132,6 +139,7 @@ static int create_table_from_dump(THD* thd, MYSQL *mysql, const char* db,
                                   const char* table_name, bool overwrite);
 static int get_master_version_and_clock(MYSQL* mysql, Master_info* mi);
 static Log_event* next_event(Relay_log_info* rli);
+static int queue_event(Master_info* mi,const char* buf,ulong event_len);
 static int terminate_slave_thread(THD *thd,
                                   pthread_mutex_t* term_lock,
                                   pthread_cond_t* term_cond,
@@ -1757,62 +1765,48 @@ static int has_temporary_error(THD *thd)
   DBUG_RETURN(0);
 }
 
-static int exec_relay_log_event(THD* thd, Relay_log_info* rli)
-{
-  DBUG_ENTER("exec_relay_log_event");
 
-  /*
-     We acquire this mutex since we need it for all operations except
-     event execution. But we will release it in places where we will
-     wait for something for example inside of next_event().
-   */
-  pthread_mutex_lock(&rli->data_lock);
-  /*
-    This tests if the position of the end of the last previous executed event
-    hits the UNTIL barrier.
-    We would prefer to test if the position of the start (or possibly) end of
-    the to-be-read event hits the UNTIL barrier, this is different if there
-    was an event ignored by the I/O thread just before (BUG#13861 to be
-    fixed).
-  */
-  if (rli->until_condition!=Relay_log_info::UNTIL_NONE &&
-      rli->is_until_satisfied())
-  {
-    char buf[22];
-    sql_print_information("Slave SQL thread stopped because it reached its"
-                    " UNTIL position %s", llstr(rli->until_pos(), buf));
-    /*
-      Setting abort_slave flag because we do not want additional message about
-      error in query execution to be printed.
-    */
-    rli->abort_slave= 1;
-    pthread_mutex_unlock(&rli->data_lock);
-    DBUG_RETURN(1);
-  }
+/**
+  Applies the given event and advances the relay log position.
 
-  Log_event * ev = next_event(rli);
+  In essence, this function does:
 
-  DBUG_ASSERT(rli->sql_thd==thd);
+  @code
+    ev->apply_event(rli);
+    ev->update_pos(rli);
+  @endcode
 
-  if (sql_slave_killed(thd,rli))
-  {
-    pthread_mutex_unlock(&rli->data_lock);
-    delete ev;
-    DBUG_RETURN(1);
-  }
-  if (ev)
-  {
-    int const type_code= ev->get_type_code();
+  But it also does some maintainance, such as skipping events if
+  needed and reporting errors.
+
+  If the @c skip flag is set, then it is tested whether the event
+  should be skipped, by looking at the slave_skip_counter and the
+  server id.  The skip flag should be set when calling this from a
+  replication thread but not set when executing an explicit BINLOG
+  statement.
+
+  @retval 0 OK.
+
+  @retval 1 Error calling ev->apply_event().
+
+  @retval 2 No error calling ev->apply_event(), but error calling
+  ev->update_pos().
+*/
+int apply_event_and_update_pos(Log_event* ev, THD* thd, Relay_log_info* rli,
+                               bool skip)
+{
   int exec_res= 0;
 
+  DBUG_ENTER("apply_event_and_update_pos");
+
   DBUG_PRINT("exec_event",("%s(type_code: %d; server_id: %d)",
-                       ev->get_type_str(), type_code, ev->server_id));
+                           ev->get_type_str(), ev->get_type_code(),
+                           ev->server_id));
   DBUG_PRINT("info", ("thd->options: %s%s; rli->last_event_start_time: %lu",
                       FLAGSTR(thd->options, OPTION_NOT_AUTOCOMMIT),
                       FLAGSTR(thd->options, OPTION_BEGIN),
                       rli->last_event_start_time));
 
-
   /*
     Execute the event to change the database and update the binary
     log coordinates, but first we set some data that is needed for
@@ -1844,6 +1838,8 @@ static int exec_relay_log_event(THD* thd, Relay_log_info* rli)
     ev->when= my_time(0);
   ev->thd = thd; // because up to this point, ev->thd == 0
 
+  if (skip)
+  {
     int reason= ev->shall_skip(rli);
     if (reason == Log_event::EVENT_SKIP_COUNT)
       --rli->slave_skip_counter;
@@ -1870,6 +1866,9 @@ static int exec_relay_log_event(THD* thd, Relay_log_info* rli)
     DBUG_PRINT("skip_event", ("%s event was %s",
                               ev->get_type_str(), explain[reason]));
 #endif
+  }
+  else
+    exec_res= ev->apply_event(rli);
 
   DBUG_PRINT("info", ("apply_event error = %d", exec_res));
   if (exec_res == 0)
@@ -1899,20 +1898,107 @@ static int exec_relay_log_event(THD* thd, Relay_log_info* rli)
                   " Stopped in %s position %s",
                   rli->group_relay_log_name,
                   llstr(rli->group_relay_log_pos, buf));
+      DBUG_RETURN(2);
+    }
+  }
+
+  DBUG_RETURN(exec_res ? 1 : 0);
+}
+
+
+/**
+  Top-level function for executing the next event from the relay log.
+
+  This function reads the event from the relay log, executes it, and
+  advances the relay log position.  It also handles errors, etc.
+
+  This function may fail to apply the event for the following reasons:
+
+   - The position specfied by the UNTIL condition of the START SLAVE
+     command is reached.
+
+   - It was not possible to read the event from the log.
+
+   - The slave is killed.
+
+   - An error occurred when applying the event, and the event has been
+     tried slave_trans_retries times.  If the event has been retried
+     fewer times, 0 is returned.
+
+   - init_master_info or init_relay_log_pos failed. (These are called
+     if a failure occurs when applying the event.)</li>
+
+   - An error occurred when updating the binlog position.
+
+  @retval 0 The event was applied.
+
+  @retval 1 The event was not applied.
+*/
+static int exec_relay_log_event(THD* thd, Relay_log_info* rli)
+{
+  DBUG_ENTER("exec_relay_log_event");
+
+  /*
+     We acquire this mutex since we need it for all operations except
+     event execution. But we will release it in places where we will
+     wait for something for example inside of next_event().
+   */
+  pthread_mutex_lock(&rli->data_lock);
+  /*
+    This tests if the position of the end of the last previous executed event
+    hits the UNTIL barrier.
+    We would prefer to test if the position of the start (or possibly) end of
+    the to-be-read event hits the UNTIL barrier, this is different if there
+    was an event ignored by the I/O thread just before (BUG#13861 to be
+    fixed).
+  */
+  if (rli->until_condition!=Relay_log_info::UNTIL_NONE &&
+      rli->is_until_satisfied())
+  {
+    char buf[22];
+    sql_print_information("Slave SQL thread stopped because it reached its"
+                    " UNTIL position %s", llstr(rli->until_pos(), buf));
+    /*
+      Setting abort_slave flag because we do not want additional message about
+      error in query execution to be printed.
+    */
+    rli->abort_slave= 1;
+    pthread_mutex_unlock(&rli->data_lock);
     DBUG_RETURN(1);
   }
+
+  Log_event * ev = next_event(rli);
+
+  DBUG_ASSERT(rli->sql_thd==thd);
+
+  if (sql_slave_killed(thd,rli))
+  {
+    pthread_mutex_unlock(&rli->data_lock);
+    delete ev;
+    DBUG_RETURN(1);
   }
+  if (ev)
+  {
+    int exec_res= apply_event_and_update_pos(ev, thd, rli, TRUE);
 
     /*
       Format_description_log_event should not be deleted because it will be
       used to read info about the relay log's format; it will be deleted when
       the SQL thread does not need it, i.e. when this thread terminates.
     */
-    if (type_code != FORMAT_DESCRIPTION_EVENT)
+    if (ev->get_type_code() != FORMAT_DESCRIPTION_EVENT)
     {
       DBUG_PRINT("info", ("Deleting the event after it has been executed"));
       delete ev;
     }
+
+    /*
+      update_log_pos failed: this should not happen, so we don't
+      retry.
+    */
+    if (exec_res == 2)
+      DBUG_RETURN(1);
+
     if (slave_trans_retries)
     {
       int temp_err;
@@ -3051,7 +3137,7 @@ static int queue_old_event(Master_info *mi, const char *buf,
   any >=5.0.0 format.
 */
 
-int queue_event(Master_info* mi,const char* buf, ulong event_len)
+static int queue_event(Master_info* mi,const char* buf, ulong event_len)
 {
   int error= 0;
   ulong inc_pos;
@@ -3937,4 +4023,8 @@ template class I_List_iterator<i_string>;
 template class I_List_iterator<i_string_pair>;
 #endif
 
+/**
+  @} (end of group Replication)
+*/
+
 #endif /* HAVE_REPLICATION */

sql/slave.h

@@ -187,6 +187,8 @@ int purge_relay_logs(Relay_log_info* rli, THD *thd, bool just_reset,
 void set_slave_thread_options(THD* thd);
 void set_slave_thread_default_charset(THD *thd, Relay_log_info const *rli);
 void rotate_relay_log(Master_info* mi);
+int apply_event_and_update_pos(Log_event* ev, THD* thd, Relay_log_info* rli,
+                               bool skip);
 
 pthread_handler_t handle_slave_io(void *arg);
 pthread_handler_t handle_slave_sql(void *arg);

sql/sql_binlog.cc

@@ -17,15 +17,14 @@
 #include "rpl_rli.h"
 #include "base64.h"
 
-/*
+/**
   Execute a BINLOG statement
 
-  TODO: This currently assumes a MySQL 5.x binlog.
-  When we'll have binlog with a different format, to execute the
-  BINLOG command properly the server will need to know which format
-  the BINLOG command's event is in.  mysqlbinlog should then send
-  the Format_description_log_event of the binlog it reads and the
-  server thread should cache this format into
+  To execute the BINLOG command properly the server needs to know
+  which format the BINLOG command's event is in.  Therefore, the first
+  BINLOG statement seen must be a base64 encoding of the
+  Format_description_log_event, as outputted by mysqlbinlog.  This
+  Format_description_log_event is cached in
   rli->description_event_for_exec.
 */
 
@@ -54,11 +53,24 @@ void mysql_client_binlog_statement(THD* thd)
   /*
     Allocation
   */
+
+  /*
+    If we do not have a Format_description_event, we create a dummy
+    one here.  In this case, the first event we read must be a
+    Format_description_event.
+  */
+  my_bool have_fd_event= TRUE;
   if (!thd->rli_fake)
+  {
     thd->rli_fake= new Relay_log_info;
-
-  const Format_description_log_event *desc=
+    have_fd_event= FALSE;
+  }
+  if (thd->rli_fake && !thd->rli_fake->relay_log.description_event_for_exec)
+  {
+    thd->rli_fake->relay_log.description_event_for_exec=
       new Format_description_log_event(4);
+    have_fd_event= FALSE;
+  }
 
   const char *error= 0;
   char *buf= (char *) my_malloc(decoded_len, MYF(MY_WME));
@@ -67,7 +79,9 @@ void mysql_client_binlog_statement(THD* thd)
   /*
     Out of memory check
   */
-  if (!(thd->rli_fake && desc && buf))
+  if (!(thd->rli_fake &&
+        thd->rli_fake->relay_log.description_event_for_exec &&
+        buf))
   {
     my_error(ER_OUTOFMEMORY, MYF(0), 1);  /* needed 1 bytes */
     goto end;
@@ -138,7 +152,28 @@ void mysql_client_binlog_statement(THD* thd)
         goto end;
       }
 
-      ev= Log_event::read_log_event(bufptr, event_len, &error, desc);
+      /*
+        If we have not seen any Format_description_event, then we must
+        see one; it is the only statement that can be read in base64
+        without a prior Format_description_event.
+      */
+      if (!have_fd_event)
+      {
+        if (bufptr[EVENT_TYPE_OFFSET] == FORMAT_DESCRIPTION_EVENT)
+          have_fd_event= TRUE;
+        else
+        {
+          my_error(ER_NO_FORMAT_DESCRIPTION_EVENT_BEFORE_BINLOG_STATEMENT,
+                   MYF(0),
+                   Log_event::get_type_str(
+                     (Log_event_type)bufptr[EVENT_TYPE_OFFSET]));
+          goto end;
+        }
+      }
+
+      ev= Log_event::read_log_event(bufptr, event_len, &error,
+                                    thd->rli_fake->relay_log.
+                                      description_event_for_exec);
 
       DBUG_PRINT("info",("binlog base64 err=%s", error));
       if (!ev)
@@ -176,9 +211,8 @@ void mysql_client_binlog_statement(THD* thd)
         reporting.
       */
 #if !defined(MYSQL_CLIENT) && defined(HAVE_REPLICATION)
-      if (IF_DBUG(int err= ) ev->apply_event(thd->rli_fake))
+      if (apply_event_and_update_pos(ev, thd, thd->rli_fake, FALSE))
       {
-        DBUG_PRINT("info", ("apply_event() returned: %d", err));
         /*
           TODO: Maybe a better error message since the BINLOG statement
           now contains several events.
@@ -188,6 +222,13 @@ void mysql_client_binlog_statement(THD* thd)
       }
 #endif
 
+      /*
+        Format_description_log_event should not be deleted because it
+        will be used to read info about the relay log's format; it
+        will be deleted when the SQL thread does not need it,
+        i.e. when this thread terminates.
+      */
+      if (ev->get_type_code() != FORMAT_DESCRIPTION_EVENT)
         delete ev;
       ev= 0;
     }
@@ -207,7 +248,6 @@ void mysql_client_binlog_statement(THD* thd)
   */
   thd->net.no_send_ok= nsok;
 
-  delete desc;
   my_free(buf, MYF(MY_ALLOW_ZERO_PTR));
   DBUG_VOID_RETURN;
 }