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"""
This module defines errors that the library can return.
"""

from __future__ import absolute_import, division, print_function


class PqosError(Exception):
    """
    Generic error returned from PQoS library.
    Field 'code' is an error code.
    """

    CODE = 1  # Generic error code

    def __init__(self, message, *args, **kwargs):
        super().__init__(message, *args, **kwargs)
        code = args[0] if args else kwargs.get('code')
        self.code = code or self.CODE


class PqosErrorParam(PqosError):
    "Parameter error returned from PQoS library"


class PqosErrorResource(PqosError):
    "Resource error returned from PQoS library"


class PqosErrorInit(PqosError):
    "Initialization error returned from PQoS library"


class PqosErrorTransport(PqosError):
    "Transport error returned from PQoS library"


class PqosErrorPerfCtr(PqosError):
    "Perf error returned from PQoS library"


class PqosErrorBusy(PqosError):
    "Busy error returned from PQoS library"


class PqosErrorInter(PqosError):
    "Internal error returned from PQoS library"


ERRORS = {
    1: PqosError,
    2: PqosErrorParam,
    3: PqosErrorResource,
    4: PqosErrorInit,
    5: PqosErrorTransport,
    6: PqosErrorPerfCtr,
    7: PqosErrorBusy,
    8: PqosErrorInter
}
