Пример #1
0
def do_packetiser(ser, state, out, info):
    while ser.inWaiting():
        chr = ser.read(1)
        state, info = do_packetise_byte(ord(chr), state, info)
        if (is_packet_ready(state)):
            state = store_packet(out, state)
        elif (is_packet_damaged(state)):
            state = drop_packet(state)
        if (is_packet_at_finish(state)):
            break
    return state, info
Пример #2
0
def do_read_packets(ser, state, info):
    out = ListFormatter()
    num_bytes = ser.in_waiting
    while (num_bytes > 0):
        # The read() function in Python is ridiculously slow; instead of using it
        # many times to read one byte, let's call it once for considerable buffer
        btarr = ser.read(min(num_bytes, 4096))
        for bt in btarr:
            state, info = do_packetise_byte(bt, state, info)
            if (is_packet_ready(state)):
                state = store_packet(out, state)
            elif (is_packet_damaged(state)):
                state = drop_packet(state)
        if (is_packet_at_finish(state)):
            break
        num_bytes = ser.in_waiting
    return state, out.pktlist, info
def do_read_packets(ser, state, info):
    out = ListFormatter()
    num_bytes = ser.in_waiting
    while (num_bytes > 0):
        # The read() function in Python is ridiculously slow; instead of using it
        # many times to read one byte, let's call it once for considerable buffer
        btarr = ser.read(min(num_bytes,4096))
        for bt in btarr:
            state, info = do_packetise_byte(bt, state, info)
            if (is_packet_ready(state)):
                state = store_packet(out, state)
            elif (is_packet_damaged(state)):
                state = drop_packet(state)
        if (is_packet_at_finish(state)):
            break;
        num_bytes = ser.in_waiting
    return state, out.pktlist, info
Пример #4
0
def do_packetiser(ser, state, out, info):
    num_bytes = ser.inWaiting()
    while (num_bytes > 0):
        # The read() function in Python is ridiculously slow; instead of using it
        # many times to read one byte, let's call it once for considerable buffer
        btarr = ser.read(min(num_bytes,4096))
        for bt in btarr:
            state, info = do_packetise_byte(bt, state, info)
            if (is_packet_ready(state)):
                state = store_packet(out, state)
            elif (is_packet_damaged(state)):
                if (out.storebad):
                    state = store_packet(out, state)
                else:
                    state = drop_packet(state)
        if (is_packet_at_finish(state)):
            break;
        num_bytes = ser.inWaiting()
    return state, info