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85 lines
2.2 KiB
Python
85 lines
2.2 KiB
Python
import _signal
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from _signal import *
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from functools import wraps as _wraps
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from enum import IntEnum as _IntEnum
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_globals = globals()
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Signals = _IntEnum(
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'Signals',
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{name: value for name, value in _globals.items()
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if name.isupper()
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and (name.startswith('SIG') and not name.startswith('SIG_'))
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or name.startswith('CTRL_')})
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class Handlers(_IntEnum):
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SIG_DFL = _signal.SIG_DFL
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SIG_IGN = _signal.SIG_IGN
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_globals.update(Signals.__members__)
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_globals.update(Handlers.__members__)
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if 'pthread_sigmask' in _globals:
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class Sigmasks(_IntEnum):
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SIG_BLOCK = _signal.SIG_BLOCK
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SIG_UNBLOCK = _signal.SIG_UNBLOCK
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SIG_SETMASK = _signal.SIG_SETMASK
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_globals.update(Sigmasks.__members__)
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def _int_to_enum(value, enum_klass):
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"""Convert a numeric value to an IntEnum member.
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If it's not a known member, return the numeric value itself.
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"""
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try:
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return enum_klass(value)
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except ValueError:
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return value
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def _enum_to_int(value):
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"""Convert an IntEnum member to a numeric value.
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If it's not a IntEnum member return the value itself.
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"""
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try:
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return int(value)
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except (ValueError, TypeError):
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return value
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@_wraps(_signal.signal)
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def signal(signalnum, handler):
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handler = _signal.signal(_enum_to_int(signalnum), _enum_to_int(handler))
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return _int_to_enum(handler, Handlers)
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@_wraps(_signal.getsignal)
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def getsignal(signalnum):
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handler = _signal.getsignal(signalnum)
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return _int_to_enum(handler, Handlers)
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if 'pthread_sigmask' in _globals:
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@_wraps(_signal.pthread_sigmask)
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def pthread_sigmask(how, mask):
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sigs_set = _signal.pthread_sigmask(how, mask)
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return set(_int_to_enum(x, Signals) for x in sigs_set)
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pthread_sigmask.__doc__ = _signal.pthread_sigmask.__doc__
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if 'sigpending' in _globals:
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@_wraps(_signal.sigpending)
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def sigpending():
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sigs = _signal.sigpending()
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return set(_int_to_enum(x, Signals) for x in sigs)
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if 'sigwait' in _globals:
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@_wraps(_signal.sigwait)
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def sigwait(sigset):
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retsig = _signal.sigwait(sigset)
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return _int_to_enum(retsig, Signals)
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sigwait.__doc__ = _signal.sigwait
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del _globals, _wraps
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