///////////////////////////////////////////////////////////////////////
#if !PLATFORM_COMPACTFRAMEWORK
/// <summary>
/// Handles the AppDomain being unloaded.
/// </summary>
/// <param name="sender">Should be null.</param>
/// <param name="e">The data associated with this event.</param>
private static void DomainUnload(
object sender,
EventArgs e
)
{
lock (syncRoot)
{
//
// NOTE: Remove the default log event handler.
//
RemoveDefaultHandler();
//
// NOTE: Disable logging. If necessary, it can be re-enabled
// later by the Initialize method.
//
_enabled = false;
#if !USE_INTEROP_DLL || !INTEROP_LOG
//
// BUGBUG: This will cause serious problems if other AppDomains
// have any open SQLite connections; however, there is
// currently no way around this limitation.
//
if (_sql != null)
{
SQLiteErrorCode rc = _sql.Shutdown();
if (rc != SQLiteErrorCode.Ok)
{
throw new SQLiteException(rc,
"Failed to shutdown interface.");
}
rc = _sql.SetLogCallback(null);
if (rc != SQLiteErrorCode.Ok)
{
throw new SQLiteException(rc,
"Failed to shutdown logging.");
}
}
//
// BUGFIX: Make sure to reset the callback for next time. This
// must be done after it has been succesfully removed
// as logging callback by the SQLite core library as we
// cannot allow native code to refer to a delegate that
// has been garbage collected.
//
if (_callback != null)
{
_callback = null;
}
#endif
//
// NOTE: Remove the event handler for the DomainUnload event
// that we added earlier.
//
if (_domainUnload != null)
{
AppDomain.CurrentDomain.DomainUnload -= _domainUnload;
_domainUnload = null;
}
}
}
