-- --
-- B o d y --
-- --
--- --
--- Copyright (C) 1999-2001 Free Software Foundation, Inc. --
+-- Copyright (C) 1999-2009, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
-- --
--- GNAT is maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-with GNAT.Task_Lock;
+with System.Soft_Links;
package body System.Global_Locks is
type String_Access is access String;
- package TSL renames GNAT.Task_Lock;
-
Dir_Separator : Character;
pragma Import (C, Dir_Separator, "__gnat_dir_separator");
-- Acquire_Lock --
------------------
- procedure Acquire_Lock
- (Lock : in out Lock_Type) is
+ procedure Acquire_Lock (Lock : in out Lock_Type) is
begin
Lock_File
(Lock_Table (Lock).Dir.all,
-- Create_Lock --
-----------------
- procedure Create_Lock
- (Lock : out Lock_Type;
- Name : in String)
- is
+ procedure Create_Lock (Lock : out Lock_Type; Name : String) is
L : Lock_Type;
begin
- TSL.Lock;
+ System.Soft_Links.Lock_Task.all;
Last_Lock := Last_Lock + 1;
L := Last_Lock;
- TSL.Unlock;
+ System.Soft_Links.Unlock_Task.all;
if L > Lock_Table'Last then
raise Lock_Error;
for J in reverse Name'Range loop
if Name (J) = Dir_Separator then
- Lock_Table (L).Dir
- := new String'(Name (Name'First .. J - 1));
- Lock_Table (L).File
- := new String'(Name (J + 1 .. Name'Last));
+ Lock_Table (L).Dir := new String'(Name (Name'First .. J - 1));
+ Lock_Table (L).File := new String'(Name (J + 1 .. Name'Last));
exit;
end if;
end loop;
if Try_Lock (C_Dir'Address, C_File'Address) = 1 then
return;
end if;
+
exit when I = Retries;
delay Wait;
end loop;
+
raise Lock_Error;
end Lock_File;
-- Release_Lock --
------------------
- procedure Release_Lock
- (Lock : in out Lock_Type)
- is
+ procedure Release_Lock (Lock : in out Lock_Type) is
S : aliased String :=
- Lock_Table (Lock).Dir.all & Dir_Separator &
- Lock_Table (Lock).File.all & ASCII.NUL;
+ Lock_Table (Lock).Dir.all & Dir_Separator &
+ Lock_Table (Lock).File.all & ASCII.NUL;
procedure unlink (A : System.Address);
pragma Import (C, unlink, "unlink");
OSDN Git Service
