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IDebugComPlusSymbolProvider::IsFunctionDeleted

  • Article

Determines that the function at the specified debug address is deleted.

Syntax

int IsFunctionDeleted(
    IDebugAddress pAddress
);

Parameters

pAddress
[in] The debug address represented by an IDebugAddress interface. This address must be a METHOD_ADDRESS.

Return Value

If the function is deleted, returns S_OK. If the function is exists, returns S_FALSE.

Example

The following example shows how to implement this method for a CDebugSymbolProvider object that exposes the IDebugComPlusSymbolProvider interface.

HRESULT CDebugSymbolProvider::IsFunctionDeleted(
    IDebugAddress* pAddress
)
{
    HRESULT hr = S_OK;
    CDEBUG_ADDRESS address;
    CComPtr<CModule> pModule;

    ASSERT(IsValidObjectPtr(this, CDebugSymbolProvider));
    ASSERT(IsValidInterfacePtr(pAddress, IDebugAddress));

    METHOD_ENTRY( CDebugSymbolProvider::IsFunctionDeleted );

    IfFalseGo( pAddress, S_FALSE );
    IfFailGo( pAddress->GetAddress( &address ) );

    ASSERT(address.addr.dwKind == ADDRESS_KIND_METADATA_METHOD);
    IfFalseGo( address.addr.dwKind == ADDRESS_KIND_METADATA_METHOD, S_FALSE );

    IfFailGo( GetModule( address.GetModule(), &pModule) );

    if (!pModule->IsFunctionDeleted( address.addr.addr.addrMethod.tokMethod,
                                     address.addr.addr.addrMethod.dwVersion,
                                     address.addr.addr.addrMethod.dwOffset ))
    {

        // S_FALSE indicates the function is not deleted

        hr = S_FALSE;
    }

Error:

    METHOD_EXIT( CDebugSymbolProvider::IsFunctionDeleted, hr );

    if (!SUCCEEDED(hr))
    {
        hr = S_FALSE;
    }

    return hr;
}

See also