Merge lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.0-base

into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.0-rt-merge

include/mysql.h

@@ -550,16 +550,6 @@ unsigned long STDCALL mysql_real_escape_string(MYSQL *mysql,
 					       char *to,const char *from,
 					       unsigned long length);
 void		STDCALL mysql_debug(const char *debug);
-char *		STDCALL mysql_odbc_escape_string(MYSQL *mysql,
-						 char *to,
-						 unsigned long to_length,
-						 const char *from,
-						 unsigned long from_length,
-						 void *param,
-						 char *
-						 (*extend_buffer)
-						 (void *, char *to,
-						  unsigned long *length));
 void 		STDCALL myodbc_remove_escape(MYSQL *mysql,char *name);
 unsigned int	STDCALL mysql_thread_safe(void);
 my_bool		STDCALL mysql_embedded(void);

libmysql/libmysql.c

@@ -1617,78 +1617,6 @@ mysql_real_escape_string(MYSQL *mysql, char *to,const char *from,
   return escape_string_for_mysql(mysql->charset, to, 0, from, length);
 }
 
-
-char * STDCALL
-mysql_odbc_escape_string(MYSQL *mysql,
-			 char *to, ulong to_length,
-			 const char *from, ulong from_length,
-			 void *param,
-			 char * (*extend_buffer)
-			 (void *, char *, ulong *))
-{
-  char *to_end=to+to_length-5;
-  const char *end;
-#ifdef USE_MB
-  my_bool use_mb_flag=use_mb(mysql->charset);
-#endif
-
-  for (end=from+from_length; from != end ; from++)
-  {
-    if (to >= to_end)
-    {
-      to_length = (ulong) (end-from)+512;	/* We want this much more */
-      if (!(to=(*extend_buffer)(param, to, &to_length)))
-	return to;
-      to_end=to+to_length-5;
-    }
-#ifdef USE_MB
-    {
-      int l;
-      if (use_mb_flag && (l = my_ismbchar(mysql->charset, from, end)))
-      {
-	while (l--)
-	  *to++ = *from++;
-	from--;
-	continue;
-      }
-    }
-#endif
-    switch (*from) {
-    case 0:				/* Must be escaped for 'mysql' */
-      *to++= '\\';
-      *to++= '0';
-      break;
-    case '\n':				/* Must be escaped for logs */
-      *to++= '\\';
-      *to++= 'n';
-      break;
-    case '\r':
-      *to++= '\\';
-      *to++= 'r';
-      break;
-    case '\\':
-      *to++= '\\';
-      *to++= '\\';
-      break;
-    case '\'':
-      *to++= '\\';
-      *to++= '\'';
-      break;
-    case '"':				/* Better safe than sorry */
-      *to++= '\\';
-      *to++= '"';
-      break;
-    case '\032':			/* This gives problems on Win32 */
-      *to++= '\\';
-      *to++= 'Z';
-      break;
-    default:
-      *to++= *from;
-    }
-  }
-  return to;
-}
-
 void STDCALL
 myodbc_remove_escape(MYSQL *mysql,char *name)
 {

libmysql/libmysql.def

@@ -78,7 +78,6 @@ EXPORTS
 	mysql_next_result
 	mysql_num_fields
 	mysql_num_rows
-	mysql_odbc_escape_string
 	mysql_options
 	mysql_stmt_param_count
 	mysql_stmt_param_metadata

libmysqld/libmysqld.def

@@ -71,7 +71,6 @@ EXPORTS
 	mysql_next_result
 	mysql_num_fields
 	mysql_num_rows
-	mysql_odbc_escape_string
 	mysql_options
 	mysql_ping
 	mysql_query

mysql-test/r/flush.result

@@ -55,3 +55,20 @@ flush tables with read lock;
 insert into t2 values(1);
 unlock tables;
 drop table t1, t2;
+drop table if exists t1, t2;
+set session low_priority_updates=1;
+create table t1 (a int);
+create table t2 (b int);
+lock tables t1 write;
+flush tables with read lock;
+ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
+unlock tables;
+lock tables t1 read, t2 write;
+flush tables with read lock;
+ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
+unlock tables;
+lock tables t1 read;
+flush tables with read lock;
+unlock tables;
+drop table t1, t2;
+set session low_priority_updates=default;

mysql-test/t/flush.test

@@ -133,4 +133,35 @@ disconnect con3;
 connection default;
 drop table t1, t2;
 
+#
+# Bug#32528 Global read lock with a low priority write lock causes a server crash
+#
+
+--disable_warnings
+drop table if exists t1, t2;
+--enable_warnings
+
+set session low_priority_updates=1;
+
+create table t1 (a int);
+create table t2 (b int);
+
+lock tables t1 write;
+--error ER_LOCK_OR_ACTIVE_TRANSACTION
+flush tables with read lock;
+unlock tables;
+
+lock tables t1 read, t2 write;
+--error ER_LOCK_OR_ACTIVE_TRANSACTION
+flush tables with read lock;
+unlock tables;
+
+lock tables t1 read;
+flush tables with read lock;
+unlock tables;
+
+drop table t1, t2;
+
+set session low_priority_updates=default;
+
 # End of 5.0 tests

sql-common/client.c

@@ -1085,11 +1085,16 @@ void mysql_read_default_options(struct st_mysql_options *options,
 	  my_free(options->ssl_capath, MYF(MY_ALLOW_ZERO_PTR));
           options->ssl_capath = my_strdup(opt_arg, MYF(MY_WME));
           break;
+        case 26:			/* ssl_cipher */
+          my_free(options->ssl_cipher, MYF(MY_ALLOW_ZERO_PTR));
+          options->ssl_cipher= my_strdup(opt_arg, MYF(MY_WME));
+          break;
 #else
 	case 13:				/* Ignore SSL options */
 	case 14:
 	case 15:
 	case 16:
+        case 26:
 	  break;
 #endif /* HAVE_OPENSSL */
 	case 17:			/* charset-lib */

sql/item_func.cc

@@ -3739,13 +3739,12 @@ longlong Item_func_sleep::val_int()
       break;
     error= 0;
   }
-
+  pthread_mutex_unlock(&LOCK_user_locks);
   pthread_mutex_lock(&thd->mysys_var->mutex);
   thd->mysys_var->current_mutex= 0;
   thd->mysys_var->current_cond=  0;
   pthread_mutex_unlock(&thd->mysys_var->mutex);
 
-  pthread_mutex_unlock(&LOCK_user_locks);
   pthread_cond_destroy(&cond);
 
   return test(!error); 		// Return 1 killed

sql/mysqld.cc

@@ -2502,7 +2502,12 @@ static int my_message_sql(uint error, const char *str, myf MyFlags)
     thd->query_error=  1; // needed to catch query errors during replication
 
     if (!thd->no_warnings_for_error)
+    {
+      thd->no_warnings_for_error= TRUE;
       push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR, error, str);
+      thd->no_warnings_for_error= FALSE;
+    }
+
     /*
       thd->lex->current_select == 0 if lex structure is not inited
       (not query command (COM_QUERY))
@@ -4307,8 +4312,13 @@ pthread_handler_t handle_connections_sockets(void *arg __attribute__((unused)))
 			  sock == unix_sock ? VIO_LOCALHOST: 0)) ||
 	my_net_init(&thd->net,vio_tmp))
     {
-      if (vio_tmp)
-	vio_delete(vio_tmp);
+      /*
+        Only delete the temporary vio if we didn't already attach it to the
+        NET object. The destructor in THD will delete any initialized net
+        structure.
+      */
+      if (vio_tmp && thd->net.vio != vio_tmp)
+        vio_delete(vio_tmp);
       else
       {
 	(void) shutdown(new_sock, SHUT_RDWR);

sql/sp_head.cc

@@ -437,14 +437,16 @@ check_routine_name(LEX_STRING ident)
  */
 
 void *
-sp_head::operator new(size_t size)
+sp_head::operator new(size_t size) throw()
 {
   DBUG_ENTER("sp_head::operator new");
   MEM_ROOT own_root;
   sp_head *sp;
 
-  init_alloc_root(&own_root, MEM_ROOT_BLOCK_SIZE, MEM_ROOT_PREALLOC);
+  init_sql_alloc(&own_root, MEM_ROOT_BLOCK_SIZE, MEM_ROOT_PREALLOC);
   sp= (sp_head *) alloc_root(&own_root, size);
+  if (sp == NULL)
+    return NULL;
   sp->main_mem_root= own_root;
   DBUG_PRINT("info", ("mem_root 0x%lx", (ulong) &sp->mem_root));
   DBUG_RETURN(sp);
@@ -455,6 +457,10 @@ sp_head::operator delete(void *ptr, size_t size)
 {
   DBUG_ENTER("sp_head::operator delete");
   MEM_ROOT own_root;
+
+  if (ptr == NULL)
+    DBUG_VOID_RETURN;
+
   sp_head *sp= (sp_head *) ptr;
 
   /* Make a copy of main_mem_root as free_root will free the sp */
@@ -498,6 +504,9 @@ sp_head::init(LEX *lex)
 
   lex->spcont= m_pcont= new sp_pcontext();
 
+  if (!lex->spcont)
+    DBUG_VOID_RETURN;
+
   /*
     Altough trg_table_fields list is used only in triggers we init for all
     types of stored procedures to simplify reset_lex()/restore_lex() code.
@@ -999,7 +1008,7 @@ sp_head::execute(THD *thd)
     DBUG_RETURN(TRUE);
 
   /* init per-instruction memroot */
-  init_alloc_root(&execute_mem_root, MEM_ROOT_BLOCK_SIZE, 0);
+  init_sql_alloc(&execute_mem_root, MEM_ROOT_BLOCK_SIZE, 0);
 
   DBUG_ASSERT(!(m_flags & IS_INVOKED));
   m_flags|= IS_INVOKED;
@@ -1821,16 +1830,29 @@ sp_head::execute_procedure(THD *thd, List<Item> *args)
 }
 
 
-// Reset lex during parsing, before we parse a sub statement.
-void
+/**
+  @brief Reset lex during parsing, before we parse a sub statement.
+
+  @param thd Thread handler.
+
+  @return Error state
+    @retval true An error occurred.
+    @retval false Success.
+*/
+
+bool
 sp_head::reset_lex(THD *thd)
 {
   DBUG_ENTER("sp_head::reset_lex");
   LEX *sublex;
   LEX *oldlex= thd->lex;
 
+  sublex= new (thd->mem_root)st_lex_local;
+  if (sublex == 0)
+    DBUG_RETURN(TRUE);
+
+  thd->lex= sublex;
   (void)m_lex.push_front(oldlex);
-  thd->lex= sublex= new st_lex;
 
   /* Reset most stuff. */
   lex_start(thd);
@@ -1853,7 +1875,7 @@ sp_head::reset_lex(THD *thd)
   sublex->interval_list.empty();
   sublex->type= 0;
 
-  DBUG_VOID_RETURN;
+  DBUG_RETURN(FALSE);
 }
 
 // Restore lex during parsing, after we have parsed a sub statement.
@@ -3729,7 +3751,7 @@ sp_add_to_query_tables(THD *thd, LEX *lex,
 
   if (!(table= (TABLE_LIST *)thd->calloc(sizeof(TABLE_LIST))))
   {
-    my_error(ER_OUTOFMEMORY, MYF(0), sizeof(TABLE_LIST));
+    thd->fatal_error();
     return NULL;
   }
   table->db_length= strlen(db);

sql/sp_head.h

@@ -182,10 +182,10 @@ class sp_head :private Query_arena
   Security_context m_security_ctx;
 
   static void *
-  operator new(size_t size);
+  operator new(size_t size) throw ();
 
   static void
-  operator delete(void *ptr, size_t size);
+  operator delete(void *ptr, size_t size) throw ();
 
   sp_head();
 
@@ -245,7 +245,7 @@ class sp_head :private Query_arena
   }
 
   // Resets lex in 'thd' and keeps a copy of the old one.
-  void
+  bool
   reset_lex(THD *thd);
 
   // Restores lex in 'thd' from our copy, but keeps some status from the

sql/sql_base.cc

@@ -80,7 +80,6 @@ bool Prelock_error_handler::safely_trapped_errors()
   return ((m_handled_errors > 0) && (m_unhandled_errors == 0));
 }
 
-
 TABLE *unused_tables;				/* Used by mysql_test */
 HASH open_cache;				/* Used by mysql_test */
 
@@ -2653,7 +2652,7 @@ int open_tables(THD *thd, TABLE_LIST **start, uint *counter, uint flags)
     temporary mem_root for new .frm parsing.
     TODO: variables for size
   */
-  init_alloc_root(&new_frm_mem, 8024, 8024);
+  init_sql_alloc(&new_frm_mem, 8024, 8024);
 
   thd->current_tablenr= 0;
  restart:

sql/sql_lex.h

@@ -1283,11 +1283,11 @@ typedef struct st_lex : public Query_tables_list
 
 struct st_lex_local: public st_lex
 {
-  static void *operator new(size_t size)
+  static void *operator new(size_t size) throw()
   {
     return (void*) sql_alloc((uint) size);
   }
-  static void *operator new(size_t size, MEM_ROOT *mem_root)
+  static void *operator new(size_t size, MEM_ROOT *mem_root) throw()
   {
     return (void*) alloc_root(mem_root, (uint) size);
   }
@@ -1303,3 +1303,4 @@ extern void lex_start(THD *thd);
 extern void lex_end(LEX *lex);
 extern int MYSQLlex(void *arg, void *yythd);
 extern char *skip_rear_comments(CHARSET_INFO *cs, char *begin, char *end);
+

sql/sql_parse.cc

@@ -7070,7 +7070,7 @@ bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables,
 
         for (; lock_p < end_p; lock_p++)
         {
-          if ((*lock_p)->type == TL_WRITE)
+          if ((*lock_p)->type >= TL_WRITE_ALLOW_WRITE)
           {
             my_error(ER_LOCK_OR_ACTIVE_TRANSACTION, MYF(0));
             return 1;

sql/sql_prepare.cc

@@ -2659,7 +2659,7 @@ Prepared_statement::Prepared_statement(THD *thd_arg, Protocol *protocol_arg)
   last_errno(0),
   flags((uint) IS_IN_USE)
 {
-  init_alloc_root(&main_mem_root, thd_arg->variables.query_alloc_block_size,
+  init_sql_alloc(&main_mem_root, thd_arg->variables.query_alloc_block_size,
                   thd_arg->variables.query_prealloc_size);
   *last_error= '\0';
 }