I am getting such a weird violation error by using the getAt() method.
I use the method in this order:
OdDbBlockTablePtr w_kOdBlockTablePtr ;
bool lbCreateDefaults = false;
OdDb::MeasurementValue lkMeasurement = OdDb::kEnglish;
OdDbDatabasePtr pDb;
// Datenbank initialisieren
pDb = g_ExSystemServices.createDatabase(lbCreateDefaults,
lkMeasurement);
// TABLE - Hold Ptr
w_kOdBlockTablePtr = pDb->getBlockTableId().openObject(OdDb::kForWrite);
const wchar_t AcadBlockModelSpace[] = L "*MODEL_SPACE";
wstring lsModelSpace(AcadBlockModelSpace);
w_kOdModelSpaceBlockRecPtr = GetTableRecordIdFromName(lsModelSpace, (OdDbSymbolTablePtr&)w_kOdBlockTablePtr).safeOpenObject(OdDb::kForWrite);
OdDbObjectId K_TeighaClass::GetTableRecordIdFromName(wstring& psName, OdDbSymbolTablePtr& pkTablePtr)
{
OdDbObjectId lkId;
try {
OdString lsOdName = psName.c_str();
lkId = pkTablePtr->getAt(lsOdName);
}
catch (OdError& err)
{
DoOdError(err, NULL, NULL);
}
return lkId;
}
I would really appreciate if someone could help me.
Thanks in advance
That's not weird at all. If you hover your mouse over pkTablePtr, you will almost certainly find that it is nullptr (or the debugger might report this as 0).
There's not enough information in your question to say why this might be, but since you are already running under the debugger you can walk through your code and find out.
try ... catch won't catch a hard error like this, by the way. For that, you need __try ... __except (supported on Windows only).
Related
I want to get PlaybackTime from FActiveSound class. However i always get this error:
Assertion failed: IsInAudioThread()
when i call this:
FActiveSound* ActiveSound = AudioDevice->FindActiveSound(AudioComponent->GetAudioComponentID());
My question is why is that? It may be nooby question but I cannot make it work on myself.
EDIT:1
What I'm doing atm is this:
Binding delegate : AudioComponent->OnAudioPlaybackPercent.AddDynamic(this, &UAudioController::GimmePlaybackPosition);
then there is my function which looks like this:
void UAudioController::GimmePlaybackPosition(const USoundWave* SoundWave, float PlaybackPercent)
{
FAudioDevice* AudioDevice = GEngine->GetAudioDevice();
if (AudioDevice)
{
FActiveSound* ActiveSound;
}
//GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Red, TEXT("Delegate fire"));
}
And now I'm wondering, how can I get there my AudioComponent, to get PlaybackTime ;/
You have to run the code that accesses AudioDevice in the audio thread via FAudioThread::RunCommandOnAudioThread.
Here is a snippet used in AudioComponent.cpp:
if (FAudioDevice* AudioDevice = GetAudioDevice())
{
const uint64 MyAudioComponentID = AudioComponentID;
FAudioThread::RunCommandOnAudioThread([AudioDevice, MyAudioComponentID, InName, InFloat]()
{
FActiveSound* ActiveSound = AudioDevice->FindActiveSound(MyAudioComponentID);
if (ActiveSound)
{
ActiveSound->SetFloatParameter(InName, InFloat);
}
}, GET_STATID(STAT_AudioSetFloatParameter));
}
The error usually means that you tried to access AudioDevice from a wrong thread. Perhaps, you should post your code to get better answers.
I'm using TaskDialogIndirect to display prompts to the user. Normally this works just fine, but sometimes, after the program has been running for a while, it begins returning an error code that the MSDN entry does not list as being one of the error codes this function can return.
0x80040001 OLE_E_ADVF "Invalid advise flags"
I have checked all the inputs to the function against previous successful calls in the same run. Aside from differences in the string to be displayed, they are identical. (the strings are even the same length.)
// create task dialog struct
TASKDIALOGCONFIG tdc;
ZeroMemory(&tdc, sizeof(TASKDIALOGCONFIG));
tdc.cbSize = sizeof(tdc);
tdc.dwFlags = (((dwMessageBoxFlags & MB_OKCANCEL) == MB_OKCANCEL) ? TDF_ALLOW_DIALOG_CANCELLATION : 0) | TDF_POSITION_RELATIVE_TO_WINDOW;
tdc.hwndParent = hwndOwner;
tdc.hInstance = LGetHInstance();
tdc.pszContent = usrText.wsz;
tdc.pButtons = _pButtons;
tdc.cButtons = nButtons;
tdc.pszMainIcon = pszTaskDialogIcon;
tdc.pszWindowTitle = usrCaption.wsz;
tdc.nDefaultButton = nDefaultButton;
// display it now
int iButton = 0;
BOOL b = 0;
HRESULT hResult = TaskDialogIndirect(&tdc, &iButton, NULL, &b);
NEW INFORMATION
At the same time that TaskDialogIndirect stops behaving correctly, ShellExecute also stops working, as does CreateFile.
This was actually caused by an event handle leak elsewhere. When the available handles ran out, no more API calls which needed to create a handle could succeed. They did return a rather odd set of error codes though, none of which was "out of handles".
I am using a sample callback function which is indicated in OpenHaptics programming guide. But, I get SystemAccessViolationException and can't get rid of it. This is the function:
HDCallbackCode HDCALLBACK queryButtonStateCB(void *userdata) {
HDboolean *pButtonDown = (HDboolean *) userdata;
*pButtonDown = gButtonDownOccurred;
/* We sampled the button down, so clear the flag */
gButtonDownOccurred = FALSE;
return HD_CALLBACK_DONE;
}
exception occurs in the line: *pButtonDown = gButtonDownOccurred;
Would someone help me please?
Using ColdFusion 9.01, occasionally, we have observed an issue where an error may be occurring within a CFC function and when we attempt to add writeDump(foo); and abort; calls to debug the error ColdFusion does not honor those calls.
Example:
private void function index(Event)
{
var rc = Event.getCollection();
var prc = Event.getCollection(private=true);
/** NOT HONORED! **/
writeDump(var=rc);
abort;
prc.JSON = {};
prc.JSON.show = variables.APIProxy.call(
handler = 'shows'
,action = 'read'
,event = arguments.Event
/** THE ERROR IS OCCURING HERE **/
,params = { language=lcase(rc.language.getLanguage_Medium()), show=rc.show_name }
);
prc.JSON.showEpisodes = variables.APIProxy.call(
handler = 'episodes'
,action = 'index'
,event = arguments.Event
,params = { language=lcase(rc.language.getLanguage_Medium()), show=rc.show_name, detail=true }
);
prc.JSON.products = variables.APIProxy.call(
handler = 'products'
,action = 'index'
,event = arguments.Event
,params = { language=lcase(rc.language.getLanguage_Medium()), detail=true }
);
Event.addAssets(
'model/product.js
,model/show.js
,collection/product_mobile.js
,collection/show_mobile.js
,view/product_mobile.js
,view/productList.js
,view/show_mobile.js
,view/showList.js
,model/episode.js
,view/episode_mobile.js
,view/episodeList.js
,collection/episode_mobile.js
,collection/product_mobile.js
,mobile/episodeObject.css
,mobile/show.js
,mobile/show.css
,mobile/category.css
');
Event.setLayout('layout.mobile');
Event.setView("show/index_mobile");
return;
}
I believe we have successfully eliminated caching. I am curious if anyone else has encountered this.
Thank you.
Aaron
I'm guessing that the error is a parse error, not a true runtime error, so it gets thrown before the function actually executes. It's not actually skipping over your abort, it just fails to parse (or execute) the entire thing.
I'm not sure why you're getting a parse error there, but I do know the CF code that handles struct literals is somewhat flaky.
The issue was with the struct literals declared within the argument calls to a function.
i'm going to go out on a limb here and say that your issue might have something to do with this bug:
http://cfbugs.adobe.com/cfbugreport/flexbugui/cfbugtracker/main.html#bugId=86960
is there anything in your app that executes in the onRequestEnd() method?
it would be helpful to tell us what exactly is happening and/or the output you're getting when the issue happens.
My application crashes on reading / writing data from the database. I have one database on c: and I copy-pasted and rename with different name. The following process is what I have used for copy...Please guide me if you have any suggestion or solution.
RFs fs;
fs.Connect();
CFileMan* fileMan=CFileMan::NewL(fs);
CleanupStack::PushL(fileMan);
TInt err=fileMan->Copy(anOld,aNew);
CleanupStack::PopAndDestroy(fileMan);
fs.Close();
if(err==KErrNone)
return ETrue;
else
return EFalse;
It crashes on following line when I am trying to insert or get any data from the database.
User::LeaveIfError( iDatabase.Execute( strSQL ) );
db creation:
TBool Open = OpenL();
if (!Open)
{
User::LeaveIfError(iDbSession.Connect());
CleanupClosePushL(iDbSession);
CleanupClosePushL(iDatabase);
User::LeaveIfError(iDatabase.Replace(iDbSession, iDBPath ));
// create table
_LIT(KSQLtest,"CREATE TABLE testtable(id INTEGER,test1 VARCHAR(50),test2 VARCHAR(50))"); User::LeaveIfError(iDatabase.Execute(KSQLtest));
iDatabase.Compact();
iDatabase.Close();
iDbSession.Close();
CleanupStack::PopAndDestroy();
CleanupStack::PopAndDestroy();
Open database:
User::LeaveIfError( iDbSession.Connect() );
CleanupClosePushL( iDbSession );
if ( KErrNone != iDatabase.Open(iDbSession, iDBPath))
{
iDbSession.Close();
CleanupStack::PopAndDestroy();
return EFalse;
}
else
{
CleanupClosePushL( iDatabase );
iIsDatabaseOpened = ETrue;
return ETrue;
}
User:: LeaveIfError() throws an exception when iDatabase.Execute() returns an error code.
You can find the most common Symbian error codes at NewLC
If the crash happens before RDbDatabase::Execute() is actually run, we'll need to see more code to figure out why iDatabase is in a bad state.
You need to explain what "crashes" means - an exception/leave? a panic? If so, what leave code, or what panic category and number?
If it "crashes" here
User::LeaveIfError( iDatabase.Execute( strSQL ) );
you might want to check the return value, i.e.
TInt error = iDatabase.Execute( strSQL );
//Now log/display the error
User::LeaveIfError(error);
A few other points of note:
If you use CleanupClosePushL() on an object, you don't need to call both Close() and CleanupStack::PopAndDestroy(). The latter will call Close() for you.
Your OpenL() function uses a mix of leaving and return code which is considered bad style generally. In addition, functions which leave something on the cleanup stack are generally named xxxxLC(), the trailing 'C' denoting a cleanup item.