readBytesUntil()

size_t fl::SerialPort::readBytesUntil	(	char	delimiter,
		u8 *	buffer,
		size_t	length )

Read bytes until delimiter is found.

Parameters

buffer	Pointer to destination buffer
length	Maximum number of bytes to read
delimiter	Character to stop reading at (not included in result)

Returns

Number of bytes actually read (not including delimiter)

Reads bytes from serial until delimiter is found, timeout occurs, or buffer is full. The delimiter character is discarded (not included in the buffer).

Definition at line 197 of file serial.cpp.hpp.

                                                                                        {
    if (!buffer || length == 0) {
        return 0;
    }
 
    size_t count = 0;
    u32 startTime = fl::millis();
 
    while (count < length && (fl::millis() - startTime < mTimeoutMs)) {
        if (available() > 0) {
            int c = read();
            if (c == -1) {
                continue;  // No data
            }
            if (c == delimiter) {
                break;  // Found delimiter, stop reading
            }
            buffer[count++] = static_cast<u8>(c);
            startTime = fl::millis();  // Reset timeout on successful read
        }
    }
 
    return count;
}

References fl::available(), fl::FL_NO_EXCEPT, length(), fl::millis(), mTimeoutMs, and fl::read().

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