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------------------------------------------------------------------------------

--                                                                          --

--                  GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                --

--                                                                          --

--                     S Y S T E M . V X W O R K S . E X T                  --

--                                                                          --

--                                   S p e c                                --

--                                                                          --

--            Copyright (C) 2008-2011, 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/>.                                          --

--                                                                          --

------------------------------------------------------------------------------

--  This package provides vxworks specific support functions needed

--  by System.OS_Interface.

--  This is the VxWorks 5 and VxWorks MILS version of this package

with Interfaces.C;

package System.VxWorks.Ext is

   pragma Preelaborate;

   subtype SEM_ID is Long_Integer;

   --  typedef struct semaphore *SEM_ID;

   type sigset_t is mod 2 ** Interfaces.C.long'Size;

   type t_id is new Long_Integer;

   subtype int is Interfaces.C.int;

   subtype unsigned is Interfaces.C.unsigned;

   type Interrupt_Handler is access procedure (parameter : System.Address);

   pragma Convention (C, Interrupt_Handler);

   type Interrupt_Vector is new System.Address;

   function Int_Lock return int;

   pragma Import (C, Int_Lock, "intLock");

   function Int_Unlock return int;

   pragma Import (C, Int_Unlock, "intUnlock");

   function Interrupt_Connect

     (Vector    : Interrupt_Vector;

      Handler   : Interrupt_Handler;

      Parameter : System.Address := System.Null_Address) return int;

   pragma Import (C, Interrupt_Connect, "intConnect");

   function Interrupt_Context return int;

   pragma Import (C, Interrupt_Context, "intContext");

   function Interrupt_Number_To_Vector

     (intNum : int) return Interrupt_Vector;

   pragma Import (C, Interrupt_Number_To_Vector, "__gnat_inum_to_ivec");

   function semDelete (Sem : SEM_ID) return int;

   pragma Import (C, semDelete, "semDelete");

   function Task_Cont (tid : t_id) return int;

   pragma Import (C, Task_Cont, "taskResume");

   function Task_Stop (tid : t_id) return int;

   pragma Import (C, Task_Stop, "taskSuspend");

   function kill (pid : t_id; sig : int) return int;

   pragma Import (C, kill, "kill");

   function getpid return t_id;

   pragma Import (C, getpid, "taskIdSelf");

   function Set_Time_Slice (ticks : int) return int;

   pragma Import (C, Set_Time_Slice, "kernelTimeSlice");

   --------------------------------

   -- Processor Affinity for SMP --

   --------------------------------

   function taskCpuAffinitySet (tid : t_id; CPU : int) return int;

   pragma Convention (C, taskCpuAffinitySet);

   --  For SMP run-times set the CPU affinity.

   --  For uniprocessor systems return ERROR status.

   function taskMaskAffinitySet (tid : t_id; CPU_Set : unsigned) return int;

   pragma Convention (C, taskMaskAffinitySet);

   --  For SMP run-times set the CPU mask affinity.

   --  For uniprocessor systems return ERROR status.

end System.VxWorks.Ext;