Catching Valentina exceptions Mac OS X

[Ruslan Zasukhin]

On 5/18/04 10:13 AM, "Pascal.Brandt at swisstopo.ch"
<Pascal.Brandt at swisstopo.ch> wrote:

Hi Pascal,

> 1. Catching Valentina exceptions works fine on Windows (C++ SDK 1.10, Visual
> C++ 6.0) but I can't bring it to work correctly on Mac OS X (10.3.3, C++ SDK
> 1.10, CW 8.3).
> 
> Code snippet used on both platform:
> 
> try 
> { 
>       // Make sure we catch the exception if opening fails
>       m_pMapDB->OpenDataBase(pszMap);
> } 
> catch (xFBL_Exception e)
> { 
>       // handle exception
>       catch (xFBL_Exception e)
        ^^^^^^^^^^^^^^^^^^^^^^^^^
        what is this an why ?

>       sprintf( buf, "Map database access error: %d", e.GetErrorCode());
>       ... 
> } 
> 
> If the encryption key is wrong, the exception is caught on Windows (returns
> Valentina error number 326: kFBL_WrongEncryptionKey) like I want and I am
> happy :-). But on Mac OS X it crashes on "OpenDataBase()" -(.
> 
> Have you an idea, a tip on what's could be problematic?

You try open encrypted db with no key ?

So problem only with THIS kind of exception/error?
All rest exceptions works?

> 2. When can I release allocated memory for the encryption key?

You should not, it use smart ptr.

> m_pStructureEncryption=new FBL_EncryptionKey((uchar*)"mypassword",(ulong)10);
> 
> Trying to release it with "delete pMap->m_pStructureEncryption" brings to
> crash. What's wrong?
> 
> 
> Thank you in advance for your support, best regards

This is my code from Valentina for REALBasic

void DataBase_SetEncryption( REALobject instance, REALstring inKey )
{
    V4RB_FUNC_START( "DataBase_SetEncryption" );

    gVRB_Error = 0;

    ClassData( DataBaseClass, instance, DataBaseData, data );
    if( data->mDataBase )
    {
        try    
        {
            FBL_EncryptionKeyCPtr key1 = (inKey)
                        ? new FBL_EncryptionKey( (uchar*)inKey->CString(),
(ulong)inKey->Length())
                        : NULL;
            
            data->mDataBase->SetEncryption( key1 );
            
        }MY_END_TRY
    }
    
    V4RB_FUNC_DONE;
}


/***************************************************************************
********************
FUNCTION   : void DataBase_ChangeEncryption( REALobject instance, REALstring
inOldKey, REALstring inNewKey );

DESCRIPTION: 
****************************************************************************
*******************/
void DataBase_ChangeEncryption( REALobject instance, REALstring inOldKey,
REALstring inNewKey )
{
    V4RB_FUNC_START( "DataBase_ChangeEncryption" );

    gVRB_Error = 0;

    ClassData( DataBaseClass, instance, DataBaseData, data );
    if( data->mDataBase )
    {
        try    
        {
            FBL_EncryptionKeyCPtr key1 = (inOldKey)
                        ? new FBL_EncryptionKey(
(uchar*)inOldKey->CString(), (ulong)inOldKey->Length())
                        : NULL;
            
            FBL_EncryptionKeyCPtr key2 = (inNewKey)
                        ? new FBL_EncryptionKey(
(uchar*)inNewKey->CString(), (ulong)inNewKey->Length())
                        : NULL;
            
            data->mDataBase->ChangeEncryption( key1, key2 );
            
        }MY_END_TRY
    }
    
    V4RB_FUNC_DONE;
}



/***************************************************************************
********************
FUNCTION   : void DataBase_SetStructureEncryption( REALobject instance,
REALstring inKey );

DESCRIPTION: 
****************************************************************************
*******************/
void DataBase_SetStructureEncryption( REALobject instance, REALstring inKey
)
{
    V4RB_FUNC_START( "DataBase_SetStructureEncryption" );

    gVRB_Error = 0;

    ClassData( DataBaseClass, instance, DataBaseData, data );
    if( data->mDataBase )
    {
        try    
        {
            FBL_EncryptionKeyCPtr key1 = (inKey)
                        ? new FBL_EncryptionKey( (uchar*)inKey->CString(),
(ulong)inKey->Length())
                        : NULL;
            
            data->mDataBase->SetStructureEncryption( key1 );
            
        }MY_END_TRY
    }
    
    V4RB_FUNC_DONE;
}


/***************************************************************************
********************
FUNCTION   : void DataBase_ChangeStructureEncryption( REALobject instance,
REALstring inOldKey, REALstring inNewKey );

DESCRIPTION: 
****************************************************************************
*******************/
void DataBase_ChangeStructureEncryption( REALobject instance, REALstring
inOldKey, REALstring inNewKey )
{
    V4RB_FUNC_START( "DataBase_ChangeStructureEncryption" );

    gVRB_Error = 0;

    ClassData( DataBaseClass, instance, DataBaseData, data );
    if( data->mDataBase )
    {
        try    
        {
            FBL_EncryptionKeyCPtr key1 = (inOldKey)
                        ? new FBL_EncryptionKey(
(uchar*)inOldKey->CString(), (ulong)inOldKey->Length())
                        : NULL;
            
            FBL_EncryptionKeyCPtr key2 = (inNewKey)
                        ? new FBL_EncryptionKey(
(uchar*)inNewKey->CString(), (ulong)inNewKey->Length())
                        : NULL;
            
            data->mDataBase->ChangeStructureEncryption( key1, key2 );
            
        }MY_END_TRY
    }
    
    V4RB_FUNC_DONE;
}


-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
-------------------------------------------------------------
e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

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