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-- GHDL Run Time (GRT) - mono-thread version.
-- Copyright (C) 2005 - 2014 Tristan Gingold
--
-- GHDL is free software; you can redistribute it and/or modify it under
-- the terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 2, or (at your option) any later
-- version.
--
-- GHDL is distributed in the hope that it will be useful, but WITHOUT 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
-- along with GCC; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
--
-- 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.
with System.Storage_Elements; -- Work around GNAT bug.
pragma Unreferenced (System.Storage_Elements);
with Grt.Signals; use Grt.Signals;
with Grt.Stack2; use Grt.Stack2;
with Grt.Stacks; use Grt.Stacks;
package Grt.Unithread is
procedure Init;
procedure Finish;
type Parallel_Subprg_Acc is access procedure;
procedure Run_Parallel (Subprg : Parallel_Subprg_Acc);
-- Return the old value of LIST.all and store EL into LIST.all.
function Atomic_Insert (List : access Ghdl_Signal_Ptr; El : Ghdl_Signal_Ptr)
return Ghdl_Signal_Ptr;
-- Return the old value.
function Atomic_Inc (Val : access Natural) return Natural;
-- Set and get the current process being executed by the thread.
procedure Set_Current_Process (Proc : Process_Acc);
function Get_Current_Process return Process_Acc;
-- The secondary stack for the thread. In this implementation, there is
-- only one secondary stack, shared by all processes. This is allowed,
-- because a wait statement cannot appear within a function. So at a wait
-- statement, the secondary stack must be empty.
function Get_Stack2 return Stack2_Ptr;
procedure Set_Stack2 (St : Stack2_Ptr);
-- The main stack. This is initialized by STACK_INIT.
-- The return point.
function Get_Main_Stack return Stack_Type;
procedure Set_Main_Stack (St : Stack_Type);
private
pragma Inline (Run_Parallel);
pragma Inline (Atomic_Insert);
pragma Inline (Atomic_Inc);
pragma Inline (Get_Stack2);
pragma Inline (Set_Stack2);
pragma Inline (Get_Main_Stack);
pragma Export (C, Set_Main_Stack, "grt_set_main_stack");
pragma Inline (Set_Current_Process);
pragma Inline (Get_Current_Process);
end Grt.Unithread;
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