New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

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salass00

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/7 15:13 #21

Just can't stay away

@orgin

Yes.

orgin

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/7 15:50 #22

Supreme Council

@salass00

Thanks: http://openamiga.org/index.php?function=viewpage&pageid=20

Vacca foeda. Sum, ergo edo

Mr Bobo Cornwater

orgin

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/7 16:54 #23

Supreme Council

@salass00

Btw, how to you obtain the Library base? OpenLibrary() ?

What happens if the library doesn't exist at all in the client system?

Vacca foeda. Sum, ergo edo

Mr Bobo Cornwater

joerg

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/7 20:04 #24

Just can't stay away

@salass00

Quote:

[...] int main () { if (!CheckLibrary(MiniGLBase, MIN_VERSION, MIN_REVISION)) { printf("Newer minigl.library needed! Upgrade ASAP.\n"); return 100; } /* go on with program */ }

Don't return some random number from main() but always one of the defines from dos/dos.h
#define RETURN_OK 0 /* No problems, success */
#define RETURN_WARN 5 /* A warning only */
#define RETURN_ERROR 10 /* Something wrong */
#define RETURN_FAIL 20 /* Complete or severe failure*/

Rigo

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/7 20:33 #25

Supreme Council

@joerg

Changed it now, totally overlooked that :)

Simon

tfrieden

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/8 16:01 #26

Just popping in

@ZeroG

Quote:

And this link library only does a OpenLibrary("whatever.library", 0) call. It will open any version and the app will crash.

That still doesn't release you from the responsibility to check for the system revision when you use features added in that revision

Thom

Frieden HQ

orgin

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/8 18:04 #27

Supreme Council

@tfrieden

How about a future OpenLibrary("my.library", version, revision) function in exec?

Of course, people could just add something like this to their programs:


struct Library* OpenLibrary(STRPTR libraryName, ULONG version, ULONG revision)

 {

  struct Library *base = OpenLibrary(libraryName,0);



  if(base==NULL)

  {

   return NULL;

  }



  if (base->lib_Version > version || (base->lib_Version == version && base->lib_Revision >= revision))

  {

    return base;

  }

  return NULL;

 }

Edited by orgin on 2008/9/8 19:01:23

Vacca foeda. Sum, ergo edo

Mr Bobo Cornwater

Rigo

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/8 19:03 #28

Supreme Council

I have updated the library checking tutorial quite a bit (mainly for SpotUp :), and there is some new code sections at the bottom which may prove useful.

Simon

Chris

Re: New stuff on OS4Depot for AmigaO4.1 crashes on AmigaOS4.0

Posted on: 2008/9/8 19:29 #29

Amigans Defender

@tfrieden

People shouldn't be adding functions to libraries without bumping the version number, generally.

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