| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
| -- -- |
| -- S Y S T E M . T A S K _ P R I M I T I V E S -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1991-2011, Free Software Foundation, Inc. -- |
| -- -- |
| -- GNARL 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 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. -- |
| -- -- |
| -- 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. -- |
| -- -- |
| -- 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/>. -- |
| -- -- |
| -- GNARL was developed by the GNARL team at Florida State University. -- |
| -- Extensive contributions were provided by Ada Core Technologies, Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This is a no tasking version of this package |
| |
| pragma Polling (Off); |
| -- Turn off polling, we do not want ATC polling to take place during tasking |
| -- operations. It causes infinite loops and other problems. |
| |
| package System.Task_Primitives is |
| pragma Preelaborate; |
| |
| type Lock is new Integer; |
| |
| type RTS_Lock is new Integer; |
| |
| type Suspension_Object is new Integer; |
| |
| type Task_Body_Access is access procedure; |
| |
| type Private_Data is record |
| Thread : aliased Integer; |
| CV : aliased Integer; |
| L : aliased RTS_Lock; |
| end record; |
| |
| subtype Task_Address is System.Address; |
| -- In some versions of Task_Primitives, notably for VMS, Task_Address is |
| -- the short version of address defined in System.Aux_DEC. To avoid |
| -- dragging Aux_DEC into tasking packages a tasking specific subtype is |
| -- defined here. |
| |
| Task_Address_Size : constant := Standard'Address_Size; |
| -- The size of Task_Address |
| |
| Alternate_Stack_Size : constant := 0; |
| -- No alternate signal stack is used on this platform |
| |
| end System.Task_Primitives; |