Function getAck

Tactility/Source/hal/gps/Probe.cpp:46–81

* From: https://github.com/meshtastic/firmware/blob/f81d3b045dd1b7e3ca7870af3da915ff4399ea98/src/gps/GPS.cpp */

 * From: https://github.com/meshtastic/firmware/blob/f81d3b045dd1b7e3ca7870af3da915ff4399ea98/src/gps/GPS.cpp
 */
GpsResponse getAck(::Device* uart, const char* message, uint32_t waitMillis) {
    uint8_t buffer[768] = {0};
    uint8_t b;
    int bytesRead = 0;
    uint32_t startTimeout = kernel::getMillis() + waitMillis;
#ifdef GPS_DEBUG
    std::string debugmsg = "";
#endif
    while (kernel::getMillis() < startTimeout) {
        size_t available = 0;
        uart_controller_get_available(uart, &available);
        if (available > 0) {
            uart_controller_read_byte(uart, &b, 1);

#ifdef GPS_DEBUG
            debugmsg += vformat("%c", (b >= 32 && b <= 126) ? b : '.');
#endif
            buffer[bytesRead] = b;
            bytesRead++;
            if ((bytesRead == 767) || (b == '\r')) {
                if (strnstr((char*)buffer, message, bytesRead) != nullptr) {
#ifdef GPS_DEBUG
                    LOGGER.debug("Found: {}", message); // Log the found message
#endif
                    return GpsResponse::Ok;
                } else {
                    bytesRead = 0;
#ifdef GPS_DEBUG
                    LOGGER.debug("{}", debugmsg);
#endif
                }
            }
        }
    }
    return GpsResponse::None;
}

/**
 * From: https://github.com/meshtastic/firmware/blob/f81d3b045dd1b7e3ca7870af3da915ff4399ea98/src/gps/GPS.cpp