Merge work.mysql.com:/home/bk/mysql

into threads.polyesthetic.msg:/usr/local/src/my/3

BitKeeper/etc/logging_ok

 mwagner@evoq.mwagner.org
 tim@threads.polyesthetic.msg
 tim@work.mysql.com
+heikki@donna.mysql.fi
+paul@central.snake.net
+monty@donna.mysql.fi

configure.in

@@ -4,7 +4,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT(sql/mysqld.cc)
 AC_CANONICAL_SYSTEM
 # The Docs Makefile.am parses this line!
-AM_INIT_AUTOMAKE(mysql, 3.23.38)
+AM_INIT_AUTOMAKE(mysql, 3.23.39)
 AM_CONFIG_HEADER(config.h)
 
 PROTOCOL_VERSION=10
@@ -751,8 +751,8 @@ case $SYSTEM_TYPE in
     ;;
   *hpux10.20*)
     echo "Enabling snprintf workaround for hpux 10.20"
-    CFLAGS="$CFLAGS -DHAVE_BROKEN_SNPRINTF"
-    CXXFLAGS="$CXXFLAGS -DHAVE_BROKEN_SNPRINTF -D_INCLUDE_LONGLONG"
+    CFLAGS="$CFLAGS -DHAVE_BROKEN_SNPRINTF -DSIGNALS_DONT_BREAK_READ"
+    CXXFLAGS="$CXXFLAGS -DHAVE_BROKEN_SNPRINTF -D_INCLUDE_LONGLONG -DSIGNALS_DONT_BREAK_READ"
     ;;
   *hpux11.*)
     echo "Enabling pread/pwrite workaround for hpux 11"
@@ -806,8 +806,8 @@ case $SYSTEM_TYPE in
     ;;
     *aix4.3*)
       echo "Adding defines for AIX"
-      CFLAGS="$CFLAGS -Wa,-many -DUNDEF_HAVE_INITGROUPS"
-      CXXFLAGS="$CXXFLAGS -Wa,-many -DUNDEF_HAVE_INITGROUPS"
+      CFLAGS="$CFLAGS -Wa,-many -DUNDEF_HAVE_INITGROUPS -DSIGNALS_DONT_BREAK_READ"
+      CXXFLAGS="$CXXFLAGS -Wa,-many -DUNDEF_HAVE_INITGROUPS -DSIGNALS_DONT_BREAK_READ"
     ;;
 dnl Is this the right match for DEC OSF on alpha?
     *dec-osf*)

innobase/dict/dict0dict.c

@@ -235,6 +235,71 @@ dict_table_get_index_noninline(
 	return(dict_table_get_index(table, name));
 }
 	
+/************************************************************************
+Initializes the autoinc counter. It is not an error to initialize already
+initialized counter. */
+
+void
+dict_table_autoinc_initialize(
+/*==========================*/
+	dict_table_t*	table,	/* in: table */
+	ib_longlong	value)	/* in: value which was assigned to a row */
+{
+	mutex_enter(&(table->autoinc_mutex));
+
+	table->autoinc_inited = TRUE;
+	table->autoinc = value;
+
+	mutex_exit(&(table->autoinc_mutex));
+}
+
+/************************************************************************
+Gets the next autoinc value, 0 if not yet initialized. */
+
+ib_longlong
+dict_table_autoinc_get(
+/*===================*/
+				/* out: value for a new row, or 0 */
+	dict_table_t*	table)	/* in: table */
+{
+	ib_longlong	value;
+
+	mutex_enter(&(table->autoinc_mutex));
+
+	if (!table->autoinc_inited) {
+
+		value = 0;
+	} else {
+		table->autoinc = table->autoinc + 1;
+		value = table->autoinc;
+	}
+	
+	mutex_exit(&(table->autoinc_mutex));
+
+	return(value);
+}
+
+/************************************************************************
+Updates the autoinc counter if the value supplied is bigger than the
+current value. If not inited, does nothing. */
+
+void
+dict_table_autoinc_update(
+/*======================*/
+	dict_table_t*	table,	/* in: table */
+	ib_longlong	value)	/* in: value which was assigned to a row */
+{
+	mutex_enter(&(table->autoinc_mutex));
+
+	if (table->autoinc_inited) {
+		if (value > table->autoinc) {
+			table->autoinc = value;
+		}
+	}	
+
+	mutex_exit(&(table->autoinc_mutex));
+}
+
 /************************************************************************
 Looks for column n in an index. */
 
@@ -568,6 +633,8 @@ dict_table_remove_from_cache(
 	/* Remove table from LRU list of tables */
 	UT_LIST_REMOVE(table_LRU, dict_sys->table_LRU, table);
 
+	mutex_free(&(table->autoinc_mutex));
+
 	size = mem_heap_get_size(table->heap);
 
 	ut_ad(dict_sys->size >= size);

innobase/dict/dict0mem.c

@@ -71,6 +71,11 @@ dict_mem_table_create(
 
 	table->stat_modif_counter = 0;
 	
+	mutex_create(&(table->autoinc_mutex));
+	mutex_set_level(&(table->autoinc_mutex), SYNC_DICT_AUTOINC_MUTEX);
+
+	table->autoinc_inited = FALSE;
+
 	table->magic_n = DICT_TABLE_MAGIC_N;
 	
 	return(table);

innobase/ibuf/ibuf0ibuf.c

@@ -1002,24 +1002,40 @@ ibuf_rec_get_volume(
 /*================*/
 			/* out: size of index record in bytes + an upper
 			limit of the space taken in the page directory */
-	rec_t*	rec)	/* in: ibuf record */
+	rec_t*	ibuf_rec)/* in: ibuf record */
 {
+	dtype_t	dtype;
+	ulint	data_size	= 0;
 	ulint	n_fields;
-	byte*	field;
+	byte*	types;
+	byte*	data;
 	ulint	len;
-	ulint	data_size;
+	ulint	i;
 
 	ut_ad(ibuf_inside());
 	ut_ad(rec_get_n_fields(rec) > 2);
+	
+	n_fields = rec_get_n_fields(ibuf_rec) - 2;
 
-	n_fields = rec_get_n_fields(rec) - 2;
+	types = rec_get_nth_field(ibuf_rec, 1, &len);
 
-	field = rec_get_nth_field(rec, 2, &len);
+	ut_ad(len == n_fields * DATA_ORDER_NULL_TYPE_BUF_SIZE);
 
-	data_size = rec_get_data_size(rec) - (field - rec);
+	for (i = 0; i < n_fields; i++) {
+		data = rec_get_nth_field(ibuf_rec, i + 2, &len);
+
+		dtype_read_for_order_and_null_size(&dtype,
+				   types + i * DATA_ORDER_NULL_TYPE_BUF_SIZE);
+
+		if (len == UNIV_SQL_NULL) {
+			data_size += dtype_get_sql_null_size(&dtype);
+		} else {
+			data_size += len;
+		}
+	}
 
 	return(data_size + rec_get_converted_extra_size(data_size, n_fields)
-					+ page_dir_calc_reserved_space(1));
+			+ page_dir_calc_reserved_space(1));
 }
 
 /*************************************************************************

innobase/include/dict0dict.h

@@ -88,6 +88,32 @@ ulint
 dict_col_get_clust_pos(
 /*===================*/
 	dict_col_t*	col);
+/************************************************************************
+Initializes the autoinc counter. It is not an error to initialize already
+initialized counter. */
+
+void
+dict_table_autoinc_initialize(
+/*==========================*/
+	dict_table_t*	table,	/* in: table */
+	ib_longlong	value);	/* in: value which was assigned to a row */
+/************************************************************************
+Gets the next autoinc value, 0 if not yet initialized. */
+
+ib_longlong
+dict_table_autoinc_get(
+/*===================*/
+				/* out: value for a new row, or 0 */
+	dict_table_t*	table);	/* in: table */
+/************************************************************************
+Updates the autoinc counter if the value supplied is bigger than the
+current value. If not inited, does nothing. */
+
+void
+dict_table_autoinc_update(
+/*======================*/
+	dict_table_t*	table,	/* in: table */
+	ib_longlong	value);	/* in: value which was assigned to a row */
 /**************************************************************************
 Adds a table object to the dictionary cache. */
 

innobase/include/dict0mem.h

@@ -302,6 +302,16 @@ struct dict_table_struct{
 				for MySQL SHOW TABLE STATUS; this counter
 				is not protected by any latch, because this
 				is only used for heuristics */
+	/*----------------------*/
+	mutex_t		autoinc_mutex;
+				/* mutex protecting the autoincrement
+				counter */
+	ibool		autoinc_inited;
+				/* TRUE if the autoinc counter has been
+				inited; MySQL gets the init value by executing
+				SELECT MAX(auto inc column) */
+	ib_longlong	autoinc;/* autoinc counter value already given to
+				a row */	
 	ulint		magic_n;/* magic number */
 };
 #define	DICT_TABLE_MAGIC_N	76333786

innobase/include/os0file.h

@@ -13,12 +13,10 @@ Created 10/21/1995 Heikki Tuuri
 
 #ifdef __WIN__
 
-#if (defined(__NT__) || defined(__WIN2000__))
-
+/* We define always WIN_ASYNC_IO, and check at run-time whether
+   the OS actually supports it: Win 95 does not, NT does. */
 #define WIN_ASYNC_IO
 
-#endif
-
 #define UNIV_NON_BUFFERED_IO
 
 #else
@@ -100,7 +98,17 @@ log. */
 				requests in a batch, and only after that
  				wake the i/o-handler thread; this has
 				effect only in simulated aio */ 
-				
+#define OS_WIN31     1
+#define OS_WIN95     2	
+#define OS_WINNT     3
+
+/***************************************************************************
+Gets the operating system version. Currently works only on Windows. */
+
+ulint
+os_get_os_version(void);
+/*===================*/
+                  /* out: OS_WIN95, OS_WIN31, OS_WINNT (2000 == NT) */
 /********************************************************************
 Opens an existing file or creates a new. */
 

innobase/include/sync0sync.h

@@ -372,6 +372,7 @@ Memory pool mutex */
 					latching order checking */
 #define	SYNC_LEVEL_NONE		2000	/* default: level not defined */
 #define SYNC_DICT		1000
+#define SYNC_DICT_AUTOINC_MUTEX	999
 #define	SYNC_PURGE_IS_RUNNING	997
 #define SYNC_DICT_HEADER	995
 #define SYNC_IBUF_HEADER	914

innobase/include/univ.i

@@ -155,6 +155,12 @@ typedef unsigned long int	ulint;
 
 typedef long int		lint;
 
+#ifdef __WIN__
+typedef __int64       ib_longlong;
+#else
+typedef longlong ib_longlong;
+#endif
+
 /* The following type should be at least a 64-bit floating point number */
 typedef double		utfloat;
 

innobase/log/log0log.c

@@ -327,7 +327,8 @@ log_pad_current_log_block(void)
 	ulint	i;
 	dulint	lsn;
 	
-	log_reserve_and_open(OS_FILE_LOG_BLOCK_SIZE);
+	/* We retrieve lsn only because otherwise gcc crashed on HP-UX */
+	lsn = log_reserve_and_open(OS_FILE_LOG_BLOCK_SIZE);
 
 	pad_length = OS_FILE_LOG_BLOCK_SIZE
 			- (log_sys->buf_free % OS_FILE_LOG_BLOCK_SIZE)

innobase/os/os0file.c

@@ -103,6 +103,38 @@ os_aio_array_t*	os_aio_sync_array	= NULL;
 
 ulint	os_aio_n_segments	= ULINT_UNDEFINED;
 
+/***************************************************************************
+Gets the operating system version. Currently works only on Windows. */
+
+ulint
+os_get_os_version(void)
+/*===================*/
+                  /* out: OS_WIN95, OS_WIN31, OS_WINNT (2000 == NT) */
+{
+#ifdef __WIN__
+  OSVERSIONINFO     os_info;
+
+  os_info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+
+  ut_a(GetVersionEx(&os_info));
+
+  if (os_info.dwPlatformId == VER_PLATFORM_WIN32s) {
+    return(OS_WIN31);
+  } else if (os_info.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) {
+    return(OS_WIN95);
+  } else if (os_info.dwPlatformId == VER_PLATFORM_WIN32_NT) {
+    return(OS_WINNT);
+  } else {
+    ut_error;
+    return(0);
+  }
+#else
+  ut_error;
+
+  return(0);
+#endif
+}
+
 /***************************************************************************
 Retrieves the last error number if an error occurs in a file io function.
 The number should be retrieved before any other OS calls (because they may
@@ -438,13 +470,13 @@ os_file_set_size(
 	byte*   buf;
 
 try_again:
-	/* We use a very big 16 MB buffer in writing because Linux is
+	/* We use a very big 8 MB buffer in writing because Linux may be
 	extremely slow in fdatasync on 1 MB writes */
 
-	buf = ut_malloc(UNIV_PAGE_SIZE * 1024);
+	buf = ut_malloc(UNIV_PAGE_SIZE * 512);
 
 	/* Write buffer full of zeros */
-	for (i = 0; i < UNIV_PAGE_SIZE * 1024; i++) {
+	for (i = 0; i < UNIV_PAGE_SIZE * 512; i++) {
 	        buf[i] = '\0';
 	}
 
@@ -456,10 +488,10 @@ try_again:
 	UT_NOT_USED(size_high);
 #endif
 	while (offset < low) {
-	        if (low - offset < UNIV_PAGE_SIZE * 1024) {
+	        if (low - offset < UNIV_PAGE_SIZE * 512) {
 	                 n_bytes = low - offset;
 	        } else {
-	                 n_bytes = UNIV_PAGE_SIZE * 1024;
+	                 n_bytes = UNIV_PAGE_SIZE * 512;
 	        }
 	  
 	        ret = os_file_write(name, file, buf, offset, 0, n_bytes);
@@ -475,8 +507,6 @@ try_again:
 
 	ret = os_file_flush(file);
 
-	fsync(file);
-
 	if (ret) {
 	        return(TRUE);
 	}

innobase/srv/srv0start.c

@@ -549,11 +549,19 @@ innobase_start_or_create_for_mysql(void)
 	srv_n_file_io_threads = 4;
 #endif
 
-#ifdef WIN_ASYNC_IO
-	/* On NT always use aio */
-	os_aio_use_native_aio = TRUE;
-#endif
+#ifdef __WIN__
+	if (os_get_os_version() == OS_WIN95
+	    || os_get_os_version() == OS_WIN31) {
+	  /* On Win 95, 98, ME, and Win32 subsystem for Windows 3.1 use
+	     simulated aio */
 
+	  os_aio_use_native_aio = FALSE;
+	  srv_n_file_io_threads = 4;
+	} else {
+	  /* On NT and Win 2000 always use aio */
+	  os_aio_use_native_aio = TRUE;
+	}
+#endif
 	if (!os_aio_use_native_aio) {
 		os_aio_init(4 * SRV_N_PENDING_IOS_PER_THREAD
 						* srv_n_file_io_threads,
@@ -600,6 +608,19 @@ innobase_start_or_create_for_mysql(void)
 		return(DB_ERROR);
 	}
 
+	sum_of_new_sizes = 0;
+
+	for (i = 0; i < srv_n_data_files; i++) {
+	  sum_of_new_sizes += srv_data_file_sizes[i];
+	}
+
+	if (sum_of_new_sizes < 640) {
+	  fprintf(stderr,
+		  "InnoDB: Error: tablespace size must be at least 10 MB\n");
+
+	  return(DB_ERROR);
+	}
+
 	err = open_or_create_data_files(&create_new_db,
 					&min_flushed_lsn, &min_arch_log_no,
 					&max_flushed_lsn, &max_arch_log_no,

innobase/sync/sync0sync.c

@@ -1001,6 +1001,8 @@ sync_thread_add_level(
 		     && !sync_thread_levels_contain(array, SYNC_IBUF_MUTEX)
 		     && !sync_thread_levels_contain(array,
 						SYNC_IBUF_PESS_INSERT_MUTEX));
+	} else if (level == SYNC_DICT_AUTOINC_MUTEX) {
+		ut_a(sync_thread_levels_g(array, SYNC_DICT_AUTOINC_MUTEX));
 	} else if (level == SYNC_DICT_HEADER) {
 		ut_a(sync_thread_levels_g(array, SYNC_DICT_HEADER));
 	} else if (level == SYNC_PURGE_IS_RUNNING) {

mysql-test/t/merge.test

@@ -109,3 +109,4 @@ insert into t1 values (1,2),(2,1),(0,0),(4,4),(5,5),(6,6);
 insert into t2 values (1,1),(2,2),(0,0),(4,4),(5,5),(6,6);
 flush tables;
 select * from t3 where a=1 order by b limit 2;
+drop table t1,t2,t3;

mysys/default.c

@@ -222,7 +222,7 @@ static my_bool search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
 				   const char *dir, const char *config_file,
 				   const char *ext, TYPELIB *group)
 {
-  char name[FN_REFLEN+10],buff[257],*ptr,*end,*value,*tmp;
+  char name[FN_REFLEN+10],buff[FN_REFLEN+1],*ptr,*end,*value,*tmp;
   FILE *fp;
   uint line=0;
   my_bool read_values=0,found_group=0;

mysys/mf_keycache.c

@@ -381,7 +381,7 @@ static SEC_LINK *find_key_block(int file, my_off_t filepos, int *error)
   reg1 SEC_LINK *next,**start;
 
 #if !defined(DBUG_OFF) && defined(EXTRA_DEBUG)
-  DBUG_EXECUTE("check_keycache",test_key_cache("start of find_key_block",0););
+  DBUG_EXECUTE("check_keycache2",test_key_cache("start of find_key_block",0););
 #endif
 
   *error=0;
@@ -459,7 +459,7 @@ static SEC_LINK *find_key_block(int file, my_off_t filepos, int *error)
   }
   _my_used_last=next;
 #if !defined(DBUG_OFF) && defined(EXTRA_DEBUG)
-  DBUG_EXECUTE("check_keycache",test_key_cache("end of find_key_block",0););
+  DBUG_EXECUTE("check_keycache2",test_key_cache("end of find_key_block",0););
 #endif
   return next;
 } /* find_key_block */

sql/ha_innobase.cc

@@ -1242,7 +1242,8 @@ ha_innobase::write_row(
 {
 	row_prebuilt_t* prebuilt = (row_prebuilt_t*)innobase_prebuilt;
   	int 		error;
-
+	longlong	auto_inc;
+	
   	DBUG_ENTER("ha_innobase::write_row");
 
   	statistic_increment(ha_write_count, &LOCK_status);
@@ -1261,10 +1262,43 @@ ha_innobase::write_row(
 	        make sure all columns are fetched in the select done by
 	        update_auto_increment */
 
-	        prebuilt->in_update_remember_pos = FALSE;
+	        /* Fetch the value the user possibly has set in the
+	        autoincrement field */
+	        
+	        auto_inc = table->next_number_field->val_int();
+
+		if (auto_inc != 0) {
+			/* This call will calculate the max of the
+			current value and the value supplied by the user, if
+			the auto_inc counter is already initialized
+			for the table */
+			dict_table_autoinc_update(prebuilt->table, auto_inc);
+		} else {
+			auto_inc = dict_table_autoinc_get(prebuilt->table);
 
+			/* If auto_inc is now != 0 the autoinc counter
+			was already initialized for the table: we can give
+			the new value for MySQL to place in the field */
+
+			if (auto_inc != 0) {
+				user_thd->next_insert_id = auto_inc;
+			}
+		}
+	        
+	        prebuilt->in_update_remember_pos = FALSE;
+	        
     		update_auto_increment();
 
+		if (auto_inc == 0) {
+			/* The autoinc counter for our table was not yet
+			initialized, initialize it now */
+
+	        	auto_inc = table->next_number_field->val_int();
+
+			dict_table_autoinc_initialize(prebuilt->table,
+								auto_inc);
+		}
+    		
 		/* We have to set sql_stat_start to TRUE because
 		update_auto_increment has called a select, and
 		has reset that flag; row_insert_for_mysql has to

sql/mysqld.cc

@@ -429,7 +429,7 @@ static void close_connections(void)
     if (error != 0 && !count++)
       sql_print_error("Got error %d from pthread_cond_timedwait",error);
 #endif
-#if defined(AIX_3_2) || defined(HAVE_DEC_3_2_THREADS)
+#if defined(HAVE_DEC_3_2_THREADS) || defined(SIGNALS_DONT_BREAK_READ)
     if (ip_sock != INVALID_SOCKET)
     {
       DBUG_PRINT("error",("closing TCP/IP and socket files"));
@@ -544,9 +544,9 @@ static void close_connections(void)
   (void) pthread_mutex_unlock(&LOCK_thread_count);
 
   mysql_log.close(1);
+  mysql_slow_log.close(1);
   mysql_update_log.close(1);
   mysql_bin_log.close(1);
-  my_free(charsets_list, MYF(0));
   DBUG_PRINT("quit",("close_connections thread"));
   DBUG_VOID_RETURN;
 }
@@ -680,6 +680,7 @@ void clean_up(bool print_message)
   end_raid();
 #endif
   free_defaults(defaults_argv);
+  my_free(charsets_list, MYF(MY_ALLOW_ZERO_PTR));
   my_free(mysql_tmpdir,MYF(0));
   x_free(opt_bin_logname);
   bitmap_free(&temp_pool);
@@ -2487,9 +2488,7 @@ static struct option long_options[] = {
   {"chroot",                required_argument, 0, 'r'},
   {"character-sets-dir",    required_argument, 0, (int) OPT_CHARSETS_DIR},
   {"datadir",               required_argument, 0, 'h'},
-#ifndef DBUG_OFF
   {"debug",                 optional_argument, 0, '#'},
-#endif
   {"default-character-set", required_argument, 0, 'C'},
   {"default-table-type",    required_argument, 0, (int) OPT_TABLE_TYPE},
   {"delay-key-write-for-all-tables",
@@ -2544,10 +2543,8 @@ static struct option long_options[] = {
      (int) OPT_DISCONNECT_SLAVE_EVENT_COUNT},
   {"abort-slave-event-count",      required_argument, 0,
      (int) OPT_ABORT_SLAVE_EVENT_COUNT},
-#if !defined(DBUG_OFF) && defined(SAFEMALLOC)
   {"safemalloc-mem-limit",  required_argument, 0, (int)
      OPT_SAFEMALLOC_MEM_LIMIT},
-#endif    
   {"new",                   no_argument,       0, 'n'},
   {"old-protocol",          no_argument,       0, 'o'},
 #ifdef ONE_THREAD
@@ -3165,12 +3162,12 @@ static void get_options(int argc,char **argv)
 			long_options, &option_index)) != EOF)
   {
     switch(c) {
-#ifndef DBUG_OFF
     case '#':
+#ifndef DBUG_OFF
       DBUG_PUSH(optarg ? optarg : default_dbug_option);
+#endif
       opt_endinfo=1;				/* unireg: memory allocation */
       break;
-#endif
     case 'a':
       opt_ansi_mode=1;
       thd_startup_options|=OPTION_ANSI_MODE;
@@ -3205,11 +3202,11 @@ static void get_options(int argc,char **argv)
     case 'P':
       mysql_port= (unsigned int) atoi(optarg);
       break;
-#if !defined(DBUG_OFF) && defined(SAFEMALLOC)      
     case OPT_SAFEMALLOC_MEM_LIMIT:
+#if !defined(DBUG_OFF) && defined(SAFEMALLOC)      
       safemalloc_mem_limit = atoi(optarg);
-      break;
 #endif      
+      break;
     case OPT_SOCKET:
       mysql_unix_port= optarg;
       break;

sql/violite.c

@@ -179,7 +179,7 @@ int vio_read(Vio * vio, gptr buf, int size)
 #ifndef DBUG_OFF
   if (r < 0)
   {
-    DBUG_PRINT("error", ("Got error %d during read",errno));
+    DBUG_PRINT("vio_error", ("Got error %d during read",errno));
   }
 #endif /* DBUG_OFF */
   DBUG_PRINT("exit", ("%d", r));
@@ -207,7 +207,7 @@ int vio_write(Vio * vio, const gptr buf, int size)
 #ifndef DBUG_OFF
   if (r < 0)
   {
-    DBUG_PRINT("error", ("Got error on write: %d",errno));
+    DBUG_PRINT("vio_error", ("Got error on write: %d",errno));
   }
 #endif /* DBUG_OFF */
   DBUG_PRINT("exit", ("%d", r));
@@ -346,7 +346,7 @@ int vio_close(Vio * vio)
   }
   if (r)
   {
-    DBUG_PRINT("error", ("close() failed, error: %d",errno));
+    DBUG_PRINT("vio_error", ("close() failed, error: %d",errno));
     /* FIXME: error handling (not critical for MySQL) */
   }
   vio->type= VIO_CLOSED;