EVIInternalLogging.m

static EVILoggingCallback s_callback = nil;

#pragma mark -

void EVILog(EVILogLevel level, NSString *fmt, ...)
{
    va_list ap;
    va_start(ap, fmt);

    if(s_callback)
    {
        s_callback(level, [[NSString alloc] initWithFormat:fmt arguments:ap]);
    }

    va_end(ap);
}

#pragma mark - Callback

void EVIRegisterLoggingCallback(EVILoggingCallback callback)
{
    s_callback = callback;
}

void EVIUnregisterLoggingCallback()
{
    s_callback = nil;
}