Function readLineNative

src/platforms/arm/lpc/io_lpc.cpp.hpp:57–87

LPC's HardwareSerial lacks readStringUntil(), so read the line manually.

// LPC's HardwareSerial lacks readStringUntil(), so read the line manually.
int readLineNative(char delimiter, char* out, int outLen) FL_NOEXCEPT {
    if (outLen <= 0) {
        return 0;
    }
    const unsigned long timeoutMs = 1000UL;
    unsigned long start = fl::millis();
    int len = 0;
    while (true) {
        if (!Serial.available()) {
            if (fl::millis() - start >= timeoutMs) {
                break;
            }
            fl::yield();
            continue;
        }
        const int value = Serial.read();
        if (value < 0) {
            break;
        }
        const char c = static_cast<char>(value);
        if (c == delimiter) {
            break;
        }
        if (len < outLen - 1) {
            out[len++] = c;
        }
        start = fl::millis();
    }
    out[len] = '\0';
    return len;
}

bool flush(u32 timeoutMs) FL_NOEXCEPT {
    (void)timeoutMs;