(SOLVED) Linux + multithreaded application

[xinyiman]

Hello guys, I have written multithreaded code that works on windows but on linux no. returns 'RunError(211)'. Why?


Project Statistiche raised exception class 'RunError(211)'.

[KpjComp]

Does your project source have this at that start of your uses clause?

Code: [Select]

program MyProgram;

{$mode objfpc}{$H+}

uses
  {$IFDEF UNIX}{$IFDEF UseCThreads}
  cthreads,
  {$ENDIF}{$ENDIF}
..
..
..


[cdbc]

Hi

This works for me on linux:

Code: [Select]

program devsync;

{$mode objfpc}{$H+}

uses
  {$IFDEF UNIX}cthreads,{$ENDIF}
  Interfaces, // this includes the LCL widgetset
  Forms, lfm_main;

{$R *.res}

begin
  {$ifdef unix} RequireDerivedFormResource := True; {$endif}
  Application.Initialize;
  Application.CreateForm(TForm1, Form1);
  Application.Run;
end.
Regards Benny

[xinyiman]

Does your project source have this at that start of your uses clause?

Code: [Select]

program MyProgram;

{$mode objfpc}{$H+}

uses
  {$IFDEF UNIX}{$IFDEF UseCThreads}
  cthreads,
  {$ENDIF}{$ENDIF}
..
..
..


Yes

{$ifdef unix}
  cthreads,
  cmem, // the c memory manager is on some systems much faster for multi-threading
{$endif}

[xinyiman]

My example for replicate error:

[xinyiman]

Help please!

[Blestan]

Hi!
First enclose the critical section enter / leave in a try finally block!!!

try
 enter cs

finally

 leave cs

second ...

create the treads in SUSPENDED state!!!! this is crucial!!!

the create (init of the thread object data ) code is executed in   main thread and the thread start to execute BEFORE the init is done ...

so you must first do a
thread.create(true)
then thread.start

[Leledumbo]

So simple: you don't have -dUseCThreads in the compiler options (Other->Custom Options).

[xinyiman]

So simple: you don't have -dUseCThreads in the compiler options (Other->Custom Options).

Thank you

Now it only works when I close the application I get:

Project projectMT raised exception class 'External: SIGABRT'.

Why?

[xinyiman]

Solved! I change

  {$IFDEF UNIX}{$IFDEF UseCThreads}
  cthreads,
  {$ENDIF}{$ENDIF}         

with

  {$ifdef unix}
    cthreads,
    cmem, // the c memory manager is on some systems much faster for multi-threading
  {$endif}

into *.lpr file