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IDebugComPlusSymbolProvider::IsFunctionStale

  • Article

Applies to: yesVisual Studio noVisual Studio for Mac

Note

This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

Determines if the function at the specified debug address is considered stale.

Syntax

HRESULT IsFunctionStale(
    IDebugAddress* pAddress
);

int IsFunctionStale(
    IDebugAddress pAddress
);

Parameters

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

Return Value

If the function is considered stale, returns S_OK. If the function is not stale, returns S_FALSE.

Example

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

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

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

    METHOD_ENTRY( CDebugSymbolProvider::IsFunctionStale );

    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->IsFunctionStale( address.addr.addr.addrMethod.tokMethod,
                                   address.addr.addr.addrMethod.dwVersion ))
    {

        // S_FALSE indicates the function is not stale

        hr = S_FALSE;
    }

Error:

    METHOD_EXIT( CDebugSymbolProvider::IsFunctionStale, hr );

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

    return hr;
}

See also