---------------------------------------------------------------- -- ZLib for Ada thick binding. -- -- -- -- Copyright (C) 2002-2003 Dmitriy Anisimkov -- -- -- -- Open source license information is in the zlib.ads file. -- ---------------------------------------------------------------- -- Continuous test for ZLib multithreading. If the test would fail -- we should provide thread safe allocation routines for the Z_Stream. -- -- $Id: mtest.adb,v 1.1.1.2 2017/01/10 00:25:30 christos Exp $ with ZLib; with Ada.Streams; with Ada.Numerics.Discrete_Random; with Ada.Text_IO; with Ada.Exceptions; with Ada.Task_Identification; procedure MTest is use Ada.Streams; use ZLib; Stop : Boolean := False; pragma Atomic (Stop); subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#; package Random_Elements is new Ada.Numerics.Discrete_Random (Visible_Symbols); task type Test_Task; task body Test_Task is Buffer : Stream_Element_Array (1 .. 100_000); Gen : Random_Elements.Generator; Buffer_First : Stream_Element_Offset; Compare_First : Stream_Element_Offset; Deflate : Filter_Type; Inflate : Filter_Type; procedure Further (Item : in Stream_Element_Array); procedure Read_Buffer (Item : out Ada.Streams.Stream_Element_Array; Last : out Ada.Streams.Stream_Element_Offset); ------------- -- Further -- ------------- procedure Further (Item : in Stream_Element_Array) is procedure Compare (Item : in Stream_Element_Array); ------------- -- Compare -- ------------- procedure Compare (Item : in Stream_Element_Array) is Next_First : Stream_Element_Offset := Compare_First + Item'Length; begin if Buffer (Compare_First .. Next_First - 1) /= Item then raise Program_Error; end if; Compare_First := Next_First; end Compare; procedure Compare_Write is new ZLib.Write (Write => Compare); begin Compare_Write (Inflate, Item, No_Flush); end Further; ----------------- -- Read_Buffer -- ----------------- procedure Read_Buffer (Item : out Ada.Streams.Stream_Element_Array; Last : out Ada.Streams.Stream_Element_Offset) is Buff_Diff : Stream_Element_Offset := Buffer'Last - Buffer_First; Next_First : Stream_Element_Offset; begin if Item'Length <= Buff_Diff then Last := Item'Last; Next_First := Buffer_First + Item'Length; Item := Buffer (Buffer_First .. Next_First - 1); Buffer_First := Next_First; else Last := Item'First + Buff_Diff; Item (Item'First .. Last) := Buffer (Buffer_First .. Buffer'Last); Buffer_First := Buffer'Last + 1; end if; end Read_Buffer; procedure Translate is new Generic_Translate (Data_In => Read_Buffer, Data_Out => Further); begin Random_Elements.Reset (Gen); Buffer := (others => 20); Main : loop for J in Buffer'Range loop Buffer (J) := Random_Elements.Random (Gen); Deflate_Init (Deflate); Inflate_Init (Inflate); Buffer_First := Buffer'First; Compare_First := Buffer'First; Translate (Deflate); if Compare_First /= Buffer'Last + 1 then raise Program_Error; end if; Ada.Text_IO.Put_Line (Ada.Task_Identification.Image (Ada.Task_Identification.Current_Task) & Stream_Element_Offset'Image (J) & ZLib.Count'Image (Total_Out (Deflate))); Close (Deflate); Close (Inflate); exit Main when Stop; end loop; end loop Main; exception when E : others => Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (E)); Stop := True; end Test_Task; Test : array (1 .. 4) of Test_Task; pragma Unreferenced (Test); Dummy : Character; begin Ada.Text_IO.Get_Immediate (Dummy); Stop := True; end MTest;