APP_EXIT_IMMEDIATELY

Fex · 07-31-2020 06:18 PM

Houge, are you still looping in InitPre? Or is there some way to make this actually be able to call Update()?
I'm trying as well to do headless linux using Ubuntu 18.04. Downloaded the source, compiled it, compiling the "Project.cpp" using netbeans 8.2. This code still spawns a OpenGL window and crashes.

Code:

void InitPre()

{

   App.flag=APP_ALLOW_NO_XDISPLAY|APP_ALLOW_NO_GPU;

#ifdef DEBUG

   App.flag|=APP_MEM_LEAKS|APP_BREAKPOINT_ON_ERROR;

#endif

   DataPath("../Data");

   LogConsole(true);

   LogN("test!");

   //Paks.add("engine.pak");

}

Bool Init()

{

    LogN("Init");

   return true;

}

void Shut()

{

}

/******************************************************************************/

Bool Update()

{

    LogN("update");

   if(!App.active())Time.wait(1);

   return true;

}

/******************************************************************************/

void Draw()

{

}

Output:

Code:

test!

X Error of failed request:  GLXBadFBConfig

  Major opcode of failed request:  153 (GLX)

  Minor opcode of failed request:  34 ()

  Serial number of failed request:  112

  Current serial number in output stream:  111

I am doing this in a VMware image using their drivers. So I'm not too concerned that I can't run graphics as that is not my goal. I'm just curious if I'm missing something as to why graphics are even spawning. I'd rather rely on the Update() callback than have to loop in InitPre.[/code]

**Esenthel** · 08-01-2020 03:25 AM

You could compile engine in debug mode under NetBeans, and step by step see which line produces this error.
Or maybe it's just a warning and the app continues to work?

Fex · 08-02-2020 04:26 PM

Thanks for the idea Greg,

Line 1362 of Display.cpp

Code:

if(MainContext.context=glXCreateContextAttribsARB(XDisplay, GLConfig, null, true, attribs))break; // stop on first found

Generates segfault. Again this may be just because of VMwares gfx driver..

For my purposes, it seems like the problem is XDisplay != null/false when the APP_ALLOW_NO_XDISPLAY is set (line 821 of Application.cpp):

..which I guess makes sense since it is "ALLOW" and not "SET" or "FORCE". Basically I am trying to run esenthel as a terminal app from Desktop (w/ Xwindows) Ubuntu, not actually a real "headless" environment. I'm trying to do so for dev purposes, the real goal is a real headless environment with regards to linux.

So I changed two lines in Application::create1() in Application.cpp to:

Code:

Bool Application::create1()

{

   if(LogInit)LogN("InitPre");

   InitPre();   

#if LINUX

   if(flag&APP_ALLOW_NO_XDISPLAY)XDisplay=null; //FORCE HEADLESS

   if(!XDisplay && !(flag&APP_ALLOW_NO_XDISPLAY))Exit("Can't open XDisplay");

#endif

   if(!testInstance())return false;

       windowCreate();

       InitSound   ();

   if(!InputDevices.create())Exit(MLTC(u"Can't create DirectInput", PL,u"Nie można utworzyć DirectInput"));

   if(!(flag&APP_ALLOW_NO_XDISPLAY))if(!D.create())return false; //FORCE HEADLESS

#if ANDROID

   if(_stay_awake){AWAKE_MODE temp=_stay_awake; _stay_awake=AWAKE_OFF; stayAwake(temp);} // on Android we need to apply this after window was created

#endif

   if(LogInit)LogN("Init");

   if(!Init        ())return false;

   return true;

}

And with limited testing it seems to work as I expect now.

**Esenthel** · 08-02-2020 04:54 PM

Yes I think the crash is inside the driver.

You could try this:
https://github.com/Esenthel/EsenthelEngi....cpp#L1344
replace

Code:

if(XDisplay)

with

Code:

if(0)

Does that work?

Fex · 08-03-2020 04:47 PM

Just the change at:
https://github.com/Esenthel/EsenthelEngi....cpp#L1344

And no other changes results in:

"Can't create Constant Buffer" and crash. Which I had happening before when I would just do:

Code:

if(flag&APP_ALLOW_NO_XDISPLAY)XDisplay=null; //FORCE HEADLESS

without:

Code:

if(!(flag&APP_ALLOW_NO_XDISPLAY))if(!D.create())return false; //FORCE HEADLESS

If I remember creating the shaders in D.create()->Sh.create(); wasn't happy so I just killed it all when APP_ALLOW_NO_XDISPLAY flag is set.

For my purposes I just want networking (FastConnection) and physics simulation on linux, and that seems to be working. I could just use PhysX directly without EE on the server side but its just easier using EE on the server and client as it lets them share the same code syntax, I have a working windows server I want to run on headless linux. I use the EE Editor (EE script) currently and not being able to use the EE Editor in a vmware linux vm (maybe I should try virtualbox) is somewhat of a bummer, but not a showstopper as I can port the Visual Studio project output to netbeans.

**Esenthel** · 08-05-2020 07:53 AM

I've just applied some commits to GitHub source which will allow the engine to work ok if GL / context didn't initialize.
I've tested only on Windows.

I think VirtualBox worked for me in the past, however it was very slow. In the end I've used an old laptop for Linux.

Fex · 08-06-2020 07:08 PM

In virtualbox (3D acceleration checked in settings), pulled latest source, get this crash when trying to compile/run the "Esenthel Builder.cpp" and "Project.cpp" (Project.cpp also has "TURQ" which is outdated).

Code:

X Error of failed request:  GLXBadFBConfig

  Major opcode of failed request:  152 (GLX)

  Minor opcode of failed request:  34 ()

  Serial number of failed request:  127

  Current serial number in output stream:  126

RUN FINISHED; Segmentation fault; core dumped; real time: 490ms; user: 40ms; system: 80ms

Also tried to change Project.cpp flags to:

Code:

App.flag=APP_ALLOW_NO_XDISPLAY|APP_ALLOW_NO_GPU;

Same crash.

**Esenthel** · 08-07-2020 06:40 AM

Thank you, I've fixed "Project.cpp".

But I still recommend to try this code change:
https://esenthel.com/forum/showthread.ph...1#pid57501

I haven't applied it to the source.

The config used is found here:
https://github.com/Esenthel/EsenthelEngi....cpp#L1822

APP_EXIT_IMMEDIATELY
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