Function ser_read

bitcoin/core/serialize.py:58–70

Read from a stream safely Raises SerializationError and SerializationTruncationError appropriately. Use this instead of f.read() in your classes stream_(de)serialization() functions.

(f, n)

        self.padding = padding

def ser_read(f, n):
    """Read from a stream safely

    Raises SerializationError and SerializationTruncationError appropriately.
    Use this instead of f.read() in your classes stream_(de)serialization()
    functions.
    """
    if n > MAX_SIZE:
        raise SerializationError('Asked to read 0x%x bytes; MAX_SIZE exceeded' % n)
    r = f.read(n)
    if len(r) < n:
        raise SerializationTruncationError('Asked to read %i bytes, but only got %i' % (n, len(r)))
    return r


class Serializable(object):