fprintf(stderr, "%u.%03u [%s] (%s:%d:%s): %s\n",

static_cast<unsigned int>(message->time_ms / 1000),

static_cast<unsigned int>(message->time_ms % 1000),

cass_log_level_string(message->severity),

message->file, message->line, message->function,

message->message);

const char* file, int line, const char* function,

const char* format, va_list args) {

CassLogMessage message = {

get_time_since_epoch_ms(), severity,

file, line, function,

""

};

vsnprintf(message.message, sizeof(message.message), format, args);

Logger::cb_(&message, Logger::data_);