Merge ahristov@bk-internal.mysql.com:/home/bk/mysql-5.1-new

into lmy004.:/work/mysql-5.1-bug16410

dbug/Makefile.am

@@ -21,7 +21,7 @@ pkglib_LIBRARIES =      libdbug.a
 noinst_HEADERS =        dbug_long.h
 libdbug_a_SOURCES =     dbug.c sanity.c
 EXTRA_DIST =            example1.c example2.c example3.c \
-                        user.r monty.doc readme.prof dbug_add_tags.pl \
+                        user.r monty.doc dbug_add_tags.pl \
                         my_main.c main.c factorial.c dbug_analyze.c
 NROFF_INC =             example1.r example2.r example3.r main.r \
                         factorial.r output1.r output2.r output3.r \

sql/event_timed.cc

@@ -132,11 +132,11 @@ event_timed::init_body(THD *thd)
     event_timed::init_execute_at()
       expr   when (datetime)
 
- RETURNS
-   0 - OK
-   EVEX_PARSE_ERROR - fix_fields failed
-   EVEX_BAD_PARAMS  - datetime is in the past
-   ER_WRONG_VALUE   - wrong value for execute at
+  RETURN VALUE
+    0                  OK
+    EVEX_PARSE_ERROR   fix_fields failed
+    EVEX_BAD_PARAMS    datetime is in the past
+    ER_WRONG_VALUE     wrong value for execute at
 */
 
 int
@@ -152,7 +152,7 @@ event_timed::init_execute_at(THD *thd, Item *expr)
   if (expr->fix_fields(thd, &expr))
     DBUG_RETURN(EVEX_PARSE_ERROR);
 
-  // let's check whether time is in the past
+  /* Let's check whether time is in the past */
   thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
                                             (my_time_t) thd->query_start());
 
@@ -166,8 +166,8 @@ event_timed::init_execute_at(THD *thd, Item *expr)
 
 
   /*
-      This may result in a 1970-01-01 date if ltime is > 2037-xx-xx
-      CONVERT_TZ has similar problem
+    This may result in a 1970-01-01 date if ltime is > 2037-xx-xx.
+    CONVERT_TZ has similar problem.
   */
   my_tz_UTC->gmt_sec_to_TIME(&ltime, TIME_to_timestamp(thd,&ltime, &not_used));
 
@@ -186,9 +186,9 @@ event_timed::init_execute_at(THD *thd, Item *expr)
       new_interval  what is the interval
 
   RETURNS
-   0 - OK
-   EVEX_PARSE_ERROR - fix_fields failed
-   EVEX_BAD_PARAMS  - Interval is not positive
+    0                  OK
+    EVEX_PARSE_ERROR   fix_fields failed
+    EVEX_BAD_PARAMS    Interval is not positive
 */
 
 int
@@ -288,8 +288,8 @@ event_timed::init_interval(THD *thd, Item *expr, interval_type new_interval)
     same time.
 
   RETURNS
-   0 - OK
-   EVEX_PARSE_ERROR - fix_fields failed
+    0                  OK
+    EVEX_PARSE_ERROR   fix_fields failed
 */
 
 int
@@ -306,7 +306,7 @@ event_timed::init_starts(THD *thd, Item *new_starts)
   if ((not_used= new_starts->get_date(&ltime, TIME_NO_ZERO_DATE)))
     DBUG_RETURN(EVEX_BAD_PARAMS);
 
-  // let's check whether time is in the past
+  /* Let's check whether time is in the past */
   thd->variables.time_zone->gmt_sec_to_TIME(&time_tmp,
                                             (my_time_t) thd->query_start());
 
@@ -344,9 +344,9 @@ event_timed::init_starts(THD *thd, Item *new_starts)
     same time.
 
   RETURNS
-   0 - OK
-   EVEX_PARSE_ERROR - fix_fields failed
-   EVEX_BAD_PARAMS  - ENDS before STARTS
+    0                  OK
+    EVEX_PARSE_ERROR   fix_fields failed
+    EVEX_BAD_PARAMS    ENDS before STARTS
 */
 
 int
@@ -361,13 +361,13 @@ event_timed::init_ends(THD *thd, Item *new_ends)
   if (new_ends->fix_fields(thd, &new_ends))
     DBUG_RETURN(EVEX_PARSE_ERROR);
 
-  // the field was already fixed in init_ends
+  /* The field was already fixed in init_ends */
   if ((not_used= new_ends->get_date(&ltime, TIME_NO_ZERO_DATE)))
     DBUG_RETURN(EVEX_BAD_PARAMS);
 
   /*
-    This may result in a 1970-01-01 date if ltime is > 2037-xx-xx
-    CONVERT_TZ has similar problem
+    This may result in a 1970-01-01 date if ltime is > 2037-xx-xx.
+    CONVERT_TZ has similar problem.
   */
   my_tz_UTC->gmt_sec_to_TIME(&ltime, TIME_to_timestamp(thd, &ltime, &not_used));
 
@@ -401,8 +401,7 @@ event_timed::init_comment(THD *thd, LEX_STRING *set_comment)
 
 
 /*
- Inits definer (definer_user and definer_host) during
- parsing.
+  Inits definer (definer_user and definer_host) during parsing.
 
   SYNOPSIS
     event_timed::init_definer()
@@ -439,7 +438,7 @@ event_timed::init_definer(THD *thd)
   SYNOPSIS
     event_timed::load_from_row(MEM_ROOT *mem_root, TABLE *table)
 
- REMARKS
+  NOTES
     This method is silent on errors and should behave like that. Callers
     should handle throwing of error messages. The reason is that the class
     should not know about how to deal with communication.
@@ -583,11 +582,10 @@ error:
 
   SYNOPSIS
     get_next_time(TIME *start, int interval_value, interval_type interval)
-   
-   next        - the sum
-   start       - add interval_value to this time
-   i_value - quantity of time type interval to add
-   i_type       - type of interval to add (SECOND, MINUTE, HOUR, WEEK ...) 
+      next          the sum
+      start         add interval_value to this time
+      i_value       quantity of time type interval to add
+      i_type        type of interval to add (SECOND, MINUTE, HOUR, WEEK ...)
 */
 
 static
@@ -653,7 +651,7 @@ bool get_next_time(TIME *next, TIME *start, int i_value, interval_type i_type)
   SYNOPSIS
     event_timed::compute_next_execution_time()
 
- REMARKS:
+  NOTES
     The time is set in execute_at, if no more executions the latter is set to
     0000-00-00.
 */
@@ -673,10 +671,10 @@ event_timed::compute_next_execution_time()
                   ("Event %s is DISABLED", name.str));
     goto ret;
   }
-  //if one-time no need to do computation
+  /* If one-time, no need to do computation */
   if (!expression)
   {
-    //let's check whether it was executed
+    /* Let's check whether it was executed */
     if (last_executed.year)
     {
       DBUG_PRINT("compute_next_execution_time",
@@ -712,10 +710,10 @@ event_timed::compute_next_execution_time()
                         last_executed.second);
 #endif
 
-  //if time_now is after ends don't execute anymore
+  /* If time_now is after ends don't execute anymore */
   if (ends.year && (tmp= my_time_compare(&ends, &time_now)) == -1)
   {
-    // time_now is after ends. don't execute anymore
+    /* time_now is after ends. don't execute anymore */
     set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
     if (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP)
       dropped= true;
@@ -728,7 +726,7 @@ event_timed::compute_next_execution_time()
   /*
     Here time_now is before or equals ends if the latter is set.
     Let's check whether time_now is before starts.
-     If so schedule for starts
+    If so schedule for starts.
   */
   if (starts.year && (tmp= my_time_compare(&time_now, &starts)) < 1)
   {
@@ -767,10 +765,10 @@ event_timed::compute_next_execution_time()
       if (get_next_time(&next_exec, &last_executed, expression, interval))
         goto err;
 
-      // There was previous execution
+      /* There was previous execution */
       if (my_time_compare(&ends, &next_exec) == -1)
       {
-        // Next execution after ends. No more executions
+        /* Next execution after ends. No more executions */
         set_zero_time(&execute_at, MYSQL_TIMESTAMP_DATETIME);
         if (on_completion == MYSQL_EVENT_ON_COMPLETION_DROP)
           dropped= true;
@@ -782,20 +780,24 @@ event_timed::compute_next_execution_time()
   }
   else if (!starts.year && !ends.year)
   {
-    // both starts and m_ends are not set, se we schedule for the next
-    // based on last_executed
+    /*
+      Both starts and m_ends are not set, so we schedule for the next
+      based on last_executed.
+    */
     if (last_executed.year)
     {
       if (get_next_time(&execute_at, &last_executed, expression, interval))
         goto err;
     }
     else
-       //last_executed not set. Schedule the event for now
+    {
+      /* last_executed not set. Schedule the event for now */
       execute_at= time_now;
     }
+  }
   else
   {
-    //either starts or m_ends is set
+    /* Either starts or m_ends is set */
     if (starts.year)
     {
       /*
@@ -854,9 +856,9 @@ err:
   Set the internal last_executed TIME struct to now. NOW is the
   time according to thd->query_start(), so the THD's clock.
 
-  Synopsis
+  SYNOPSIS
     event_timed::drop()
-      thd - thread context
+      thd   thread context
 */
 
 void
@@ -878,16 +880,16 @@ event_timed::mark_last_executed(THD *thd)
 /*
   Drops the event
 
-  Synopsis
+  SYNOPSIS
     event_timed::drop()
-      thd - thread context
+      thd   thread context
 
-  RETURNS :
-    0 - OK
-   -1 - Cannot open mysql.event
-   -2 - Cannot find the event in mysql.event (already deleted?)
+  RETURN VALUE
+    0       OK
+   -1       Cannot open mysql.event
+   -2       Cannot find the event in mysql.event (already deleted?)
 
-   others - return code from SE in case deletion of the event row
+   others   return code from SE in case deletion of the event row
             failed.
 */
 
@@ -905,17 +907,17 @@ event_timed::drop(THD *thd)
 /*
   Saves status and last_executed_at to the disk if changed.
 
-  Synopsis
+  SYNOPSIS
     event_timed::drop()
       thd - thread context
 
-  Returns :
-    0 - OK
-    SP_OPEN_TABLE_FAILED - Error while opening mysql.event for writing
-    EVEX_WRITE_ROW_FAILED - On error to write to disk
+  RETURN VALUE
+    0   OK
+    SP_OPEN_TABLE_FAILED    Error while opening mysql.event for writing
+    EVEX_WRITE_ROW_FAILED   On error to write to disk
 
-   others - return code from SE in case deletion of the event row
-            failed.
+   others                   return code from SE in case deletion of the event
+                            row failed.
 */
 
 bool
@@ -930,7 +932,7 @@ event_timed::update_fields(THD *thd)
 
   DBUG_PRINT("enter", ("name: %*s", name.length, name.str));
 
-  //no need to update if nothing has changed
+  /* No need to update if nothing has changed */
   if (!(status_changed || last_executed_changed))
     goto done;
 
@@ -947,7 +949,7 @@ event_timed::update_fields(THD *thd)
     goto done;
 
   store_record(table,record[1]);
-  // Don't update create on row update.
+  /* Don't update create on row update. */
   table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET;
 
   if (last_executed_changed)
@@ -978,12 +980,14 @@ done:
 /*
   Get SHOW CREATE EVENT as string
 
-  thd  - Thread
-  buf  - String*, should be already allocated. CREATE EVENT goes inside.
+  SYNOPSIS
+    event_timed::get_create_event(THD *thd, String *buf)
+      thd    Thread
+      buf    String*, should be already allocated. CREATE EVENT goes inside.
 
-  Returns:
-  0 - OK
-  1 - Error (for now if mysql.event has been tampered and MICROSECONDS
+  RETURN VALUE
+    0   OK
+    1   Error (for now if mysql.event has been tampered and MICROSECONDS
         interval or derivative has been put there.
 */
 
@@ -1018,8 +1022,8 @@ event_timed::get_create_event(THD *thd, String *buf)
     char dtime_buff[20*2+32];// +32 to make my_snprintf_{8bit|ucs2} happy
     buf->append(STRING_WITH_LEN("AT '"));
     /*
-      pass the buffer and the second param tells fills the buffer and returns
-      the number of chars to copy
+      Pass the buffer and the second param tells fills the buffer and
+      returns the number of chars to copy.
     */
     buf->append(dtime_buff, my_datetime_to_str(&execute_at, dtime_buff));
     buf->append(STRING_WITH_LEN("'"));
@@ -1055,11 +1059,10 @@ event_timed::get_create_event(THD *thd, String *buf)
       thd       THD
       mem_root  If != NULL use it to compile the event on it
 
-   Returns 
-          0  - success
-       -100  - event in execution (parallel execution is impossible)
-      others - retcodes of sp_head::execute_procedure()
-      
+  RETURNS
+    0        success
+    -100     event in execution (parallel execution is impossible)
+    others   retcodes of sp_head::execute_procedure()
 */
 
 int
@@ -1107,16 +1110,15 @@ done:
   Compiles an event before it's execution. Compiles the anonymous
   sp_head object held by the event
 
-  Synopsis
+  SYNOPSIS
     event_timed::compile()
-      thd      - thread context, used for memory allocation mostly
-      mem_root - if != NULL then this memory root is used for allocs
+      thd        thread context, used for memory allocation mostly
+      mem_root   if != NULL then this memory root is used for allocs
                  instead of thd->mem_root
 
-  Returns
-                     0 - Success
-    EVEX_COMPILE_ERROR - Error during compilation
-
+  RETURN VALUE
+    0                    success
+    EVEX_COMPILE_ERROR   error during compilation
 */
 
 int
@@ -1150,7 +1152,7 @@ event_timed::compile(THD *thd, MEM_ROOT *mem_root)
   thd->update_charset();
 
   DBUG_ENTER("event_timed::compile");
-  // change the memory root for the execution time
+  /* Change the memory root for the execution time */
   if (mem_root)
   {
     tmp_mem_root= thd->mem_root;
@@ -1174,8 +1176,10 @@ event_timed::compile(THD *thd, MEM_ROOT *mem_root)
   {
     DBUG_PRINT("error", ("error during compile or thd->is_fatal_error=%d",
                           thd->is_fatal_error));
-    //  Free lex associated resources
-    //  QQ: Do we really need all this stuff here ?
+    /*
+      Free lex associated resources
+      QQ: Do we really need all this stuff here?
+    */
     sql_print_error("error during compile of %s.%s or thd->is_fatal_error=%d",
                     dbname.str, name.str, thd->is_fatal_error);
     if (lex.sphead)
@@ -1192,8 +1196,10 @@ event_timed::compile(THD *thd, MEM_ROOT *mem_root)
 
   sphead= lex.et->sphead;
   sphead->m_db= dbname;
-  //copy also chistics since they will vanish otherwise we get 0x0 pointer
-  // Todo : Handle sql_mode !!
+  /*
+    Ccopy also chistics since they will vanish otherwise we get 0x0 pointer
+    TODO: Handle sql_mode!!
+  */
   sphead->set_definer(definer.str, definer.length);
   sphead->set_info(0, 0, &lex.sp_chistics, 0/*sql_mode*/);
   sphead->optimize();
@@ -1214,9 +1220,7 @@ done:
   thd->variables.collation_connection= old_collation_connection;
   thd->update_charset();
 
-  /*
-    Change the memory root for the execution time.
-  */
+  /* Change the memory root for the execution time. */
   if (mem_root)
     thd->mem_root= tmp_mem_root;