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

into work.mysql.com:/home/bk/mysql-4.0


Docs/manual.texi:
  Auto merged
sql/sql_parse.cc:
  Auto merged

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/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/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) {

mysys/getvar.c

@@ -87,7 +87,7 @@ my_bool set_changeable_var(my_string str,CHANGEABLE_VAR *vars)
 	DBUG_RETURN(1);
       }
 
-      num=atoll(end); endchar=strend(end)[-1];
+      num=strtoll(end, (char **)NULL, 10); endchar=strend(end)[-1];
       if (endchar == 'k' || endchar == 'K')
 	num*=1024;
       else if (endchar == 'm' || endchar == 'M')

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/sql_parse.cc

@@ -1864,6 +1864,15 @@ mysql_execute_command(void)
     }
     if (check_db_used(thd,tables) || end_active_trans(thd))
       goto error;
+    for (TABLE_LIST *tmp = tables; tmp; tmp = tmp->next)
+    {
+      if (!(tmp->lock_type == TL_READ_NO_INSERT ?
+            !check_table_access(thd, SELECT_ACL, tmp) :
+            (!check_table_access(thd, INSERT_ACL, tmp) ||
+             !check_table_access(thd, UPDATE_ACL, tmp) ||
+             !check_table_access(thd, DELETE_ACL, tmp))))
+         goto error;
+    }
     thd->in_lock_tables=1;
     if (!(res=open_and_lock_tables(thd,tables)))
     {