merge from 5.1 repo.

client/mysqlbinlog.cc

@@ -784,8 +784,11 @@ Exit_status process_event(PRINT_EVENT_INFO *print_event_info, Log_event *ev,
           goto end;
       }
       else
+      {
         ce->print(result_file, print_event_info, TRUE);
-
+        if (head->error == -1)
+          goto err;
+      }
       // If this binlog is not 3.23 ; why this test??
       if (glob_description_event->binlog_version >= 3)
       {
@@ -836,6 +839,8 @@ Exit_status process_event(PRINT_EVENT_INFO *print_event_info, Log_event *ev,
 	ce->print(result_file, print_event_info, TRUE);
 	my_free((char*)ce->fname,MYF(MY_WME));
 	delete ce;
+        if (head->error == -1)
+          goto err;
       }
       else
         warning("Ignoring Execute_load_log_event as there is no "
@@ -890,6 +895,12 @@ Exit_status process_event(PRINT_EVENT_INFO *print_event_info, Log_event *ev,
         {
           convert_path_to_forward_slashes(fname);
           exlq->print(result_file, print_event_info, fname);
+          if (head->error == -1)
+          {
+            if (fname)
+              my_free(fname, MYF(MY_WME));
+            goto err;
+          }
         }
         else
           warning("Ignoring Execute_load_query since there is no "

mysys/mf_iocache2.c

@@ -430,7 +430,11 @@ size_t my_b_vprintf(IO_CACHE *info, const char* fmt, va_list args)
           memset(buffz, '0', minimum_width - length2);
         else
           memset(buffz, ' ', minimum_width - length2);
-        my_b_write(info, buffz, minimum_width - length2);
+        if (my_b_write(info, buffz, minimum_width - length2))
+        {
+          my_afree(buffz);
+          goto err;
+        }
         my_afree(buffz);
       }
 

sql/log.cc

@@ -2388,7 +2388,10 @@ bool MYSQL_QUERY_LOG::write(THD *thd, time_t current_time,
     {
       end= strxmov(buff, "# administrator command: ", NullS);
       buff_len= (ulong) (end - buff);
-      my_b_write(&log_file, (uchar*) buff, buff_len);
+      DBUG_EXECUTE_IF("simulate_slow_log_write_error",
+                      {DBUG_SET("+d,simulate_file_write_error");});
+      if(my_b_write(&log_file, (uchar*) buff, buff_len))
+        tmp_errno= errno;
     }
     if (my_b_write(&log_file, (uchar*) sql_text, sql_text_len) ||
         my_b_write(&log_file, (uchar*) ";\n",2) ||

sql/log_event.cc

@@ -6320,11 +6320,18 @@ void Create_file_log_event::print(FILE* file, PRINT_EVENT_INFO* print_event_info
   {
     Load_log_event::print(file, print_event_info,
 			  !check_fname_outside_temp_buf());
-    /* 
-       That one is for "file_id: etc" below: in mysqlbinlog we want the #, in
-       SHOW BINLOG EVENTS we don't.
-    */
-    my_b_printf(&cache, "#"); 
+    /**
+      reduce the size of io cache so that the write function is called
+      for every call to my_b_printf().
+     */
+    DBUG_EXECUTE_IF ("simulate_create_event_write_error",
+                     {(&cache)->write_pos= (&cache)->write_end;
+                     DBUG_SET("+d,simulate_file_write_error");});
+    /*
+      That one is for "file_id: etc" below: in mysqlbinlog we want the #, in
+      SHOW BINLOG EVENTS we don't.
+     */
+    my_b_printf(&cache, "#");
   }
 
   my_b_printf(&cache, " file_id: %d  block_len: %d\n", file_id, block_len);
@@ -7000,6 +7007,13 @@ void Execute_load_query_log_event::print(FILE* file,
   Write_on_release_cache cache(&print_event_info->head_cache, file);
 
   print_query_header(&cache, print_event_info);
+  /**
+    reduce the size of io cache so that the write function is called
+    for every call to my_b_printf().
+   */
+  DBUG_EXECUTE_IF ("simulate_execute_event_write_error",
+                   {(&cache)->write_pos= (&cache)->write_end;
+                   DBUG_SET("+d,simulate_file_write_error");});
 
   if (local_fname)
   {

sql/rpl_utility.h

@@ -300,7 +300,7 @@ class Deferred_log_events
 public:
   Deferred_log_events(Relay_log_info *rli);
   ~Deferred_log_events();
-  /* queue for exection at Query-log-event time prior the Query */;
+  /* queue for exection at Query-log-event time prior the Query */
   int add(Log_event *ev);
   bool is_empty();
   bool execute(Relay_log_info *rli);