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-- GHDL Run Time (GRT) - analog solver for sundials.
-- Copyright (C) 2022 Tristan Gingold
--
-- This program 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 of the License, or
-- (at your option) any later version.
--
-- This program 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 this program. If not, see <gnu.org/licenses>.
--
-- 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 Grt.Errors; use Grt.Errors;
package body Grt.Analog_Solver is
function Sundials_Init (Sz : Ghdl_I32) return Ghdl_I32;
pragma Import (C, Sundials_Init, "grt_sundials_init");
function Sundials_Start return Ghdl_I32;
pragma Import (C, Sundials_Start, "grt_sundials_start");
procedure Sundials_Solve (T0 : Ghdl_F64; Tn : in out Ghdl_F64;
Res : out Integer);
pragma Import (C, Sundials_Solve, "grt_sundials_solve");
procedure Init (Size : Ghdl_I32)
is
Res : Ghdl_I32;
begin
Res := Sundials_Init (Size);
if Res < 0 then
Internal_Error ("sundials initialization failure");
end if;
end Init;
function Sundials_Get_Yy_Vec return F64_C_Arr_Ptr;
pragma Import (C, Sundials_Get_Yy_Vec, "grt_sundials_get_yy_vec");
function Get_Init_Val_Ptr return F64_C_Arr_Ptr is
begin
return Sundials_Get_Yy_Vec;
end Get_Init_Val_Ptr;
function Sundials_Get_Yp_Vec return F64_C_Arr_Ptr;
pragma Import (C, Sundials_Get_Yp_Vec, "grt_sundials_get_yp_vec");
function Get_Init_Der_Ptr return F64_C_Arr_Ptr is
begin
return Sundials_Get_Yp_Vec;
end Get_Init_Der_Ptr;
procedure Start is
begin
if Sundials_Start /= 0 then
Internal_Error ("sundials start");
end if;
end Start;
procedure Set_Root_Size (Size : Ghdl_I32) is
begin
Internal_Error ("sundials set_root_size");
end Set_Root_Size;
procedure Solve (T : Ghdl_F64; Tn : in out Ghdl_F64; Res : out Integer) is
begin
Sundials_Solve (T, Tn, Res);
end Solve;
procedure Finish is
begin
Internal_Error ("sundials finish");
end Finish;
end Grt.Analog_Solver;
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