E60 App crashes at StringLoader::LoadLC( R_CHAT_SERVICE_NAME );

[zdenko]

Hi,
I am using portion of code from BtServices sample. Following line of code crashes application at application startup:

HBufC* textResource = StringLoader::LoadLC( R_CHAT_SERVICE_NAME );

During startup AppUi creates CChatBt.
If I add same line of code to ConstructL method of CChatBt everything works fine.

void CChatBt::ConstructL()
    {
    //OK
    HBufC* textResource = StringLoader::LoadLC( R_CHAT_SERVICE_NAME );      
    CleanupStack::PopAndDestroy( textResource );
    iAdvertiser = CChatServiceAdvertiser::NewL();
    }

void CChatServiceAdvertiser::ConstructL()
    {
    //Crashes app
    HBufC* textResource = StringLoader::LoadLC( R_CHAT_SERVICE_NAME );
    CleanupStack::PopAndDestroy( textResource );
    }

As soon as I comment code in CChatServiceAdvertiser::ConstructL() app starts.
I have surounded command with TRAPD

TRAPD(err, textResource = StringLoader::LoadL( R_CHAT_SERVICE_NAME );)

but it does not help. App stil crashes.

My first gues was stack size. I removed string loading from

void CChatBt::ConstructL()
    {
    //OK
    //HBufC* textResource = StringLoader::LoadLC(R_CHAT_SERVICE_NAME);
    //CleanupStack::PopAndDestroy( textResource );
    iAdvertiser = CChatServiceAdvertiser::NewL();
    }

Application stil craches.
stack is 20 kb
(in mmp file)
EPOCSTACKSIZE 0x5000
Increasing stack size to 0x6000 did not help.

I have added

HBufC* textResource = StringLoader::LoadLC(R_CHAT_SERVICE_NAME);

To constructL method of each class which is created during app startup. As soon as I add it to 6th class in chain, app craches.

What can cose this behaviour?

Zdenko

[Bernd42]

That seems to be a strange problem. How does the application crash? Do you get a KERN-EXEC-3 or another Panic?

Bernd

[zdenko]

Application closes without any message.
Since all this is going on at startup I do not see applications view. Only thing I see is short screen flicker. All icons from screen disapear for aproximatly half second and everything is back after it.

[Bernd42]

Ok. On the device you usually don't get the Panic code displayed. Did you try to run the program in the emulator in debug mode? It will be hard to get the BT part working, but you might be able to find the source for this problem.

Bernd

[chall3ng3r]

hello,

zdenko, did you managed to make it work? if yes how?

i'm creating some other application, but this is happening exactly same on my cell. StringLoader::LoadLC works in ConstructL, but crashs on elsewhere.

thanks,

// chall3ng3r //

[chall3ng3r]

very strange.....

on emulator, and on cell the behavior was same, as soon as StringLoader::LoadLC is called, the app was crashed without any errors.

i searched around a found another way to load resource data:
HBufC * infoText = CEikonEnv::Static()->AllocReadResourceLC(R_TEXT_MYDATA);

this code works fine in emulator and i can see the loaded data, everything is working fine... but on cellphone, the behavior is same as with StringLoader::LoadLC, crash with no errors.

can anyone help me?

// chall3ng3r //