"""
General PyAFS utilities, such as error handling
"""

import sys

cdef int _init = 0

class AFSException(Exception):
    def __init__(self, errno, message):
        self.errno = errno
        self.strerror = afs_error_message(errno)
        self.message = message

    def __repr__(self):
        return "AFSException(%s, %s)" % (self.errno, self.message)

    def __str__(self):
        return "[%s] (%s) while %s" % (self.errno, self.strerror, self.message)

def pyafs_error(code, msg):
    if not _init:
        initialize_ACFG_error_table()
        initialize_KTC_error_table()
        initialize_PT_error_table()
        initialize_RXK_error_table()
        initialize_U_error_table()

        _init = 1

    if code != 0:
        raise AFSException(code, msg)