| 1 | #!/usr/bin/env python2
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| 2 | """Signal_def.py."""
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| 3 | from __future__ import print_function
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| 4 |
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| 5 | import signal
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| 6 |
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| 7 | from typing import Dict
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| 8 |
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| 9 |
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| 10 | def _MakeSignalsOld():
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| 11 | # type: () -> Dict[str, int]
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| 12 | """Piggy-back on CPython signal module.
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| 13 |
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| 14 | This causes portability problems
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| 15 | """
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| 16 | names = {} # type: Dict[str, int]
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| 17 | for name in dir(signal):
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| 18 | # don't want SIG_DFL or SIG_IGN
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| 19 | if name.startswith('SIG') and not name.startswith('SIG_'):
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| 20 | int_val = getattr(signal, name)
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| 21 | abbrev = name[3:]
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| 22 | names[abbrev] = int_val
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| 23 | return names
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| 24 |
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| 25 |
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| 26 | # POSIX 2018
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| 27 | # https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/signal.h.html
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| 28 |
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| 29 | _PORTABLE_SIGNALS = [
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| 30 | 'SIGABRT',
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| 31 | 'SIGALRM',
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| 32 | 'SIGBUS',
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| 33 | 'SIGCHLD',
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| 34 | 'SIGCONT',
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| 35 | 'SIGFPE',
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| 36 | 'SIGHUP',
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| 37 | 'SIGILL',
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| 38 | 'SIGINT',
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| 39 | #SIGKILL
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| 40 | 'SIGPIPE',
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| 41 | 'SIGQUIT',
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| 42 | 'SIGSEGV',
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| 43 | 'SIGSTOP',
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| 44 | 'SIGTERM',
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| 45 | 'SIGTSTP',
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| 46 | 'SIGTTIN',
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| 47 | 'SIGTTOU',
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| 48 | 'SIGUSR1',
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| 49 | 'SIGUSR2',
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| 50 | 'SIGSYS',
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| 51 | 'SIGTRAP',
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| 52 | 'SIGURG',
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| 53 | 'SIGVTALRM',
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| 54 | 'SIGXCPU',
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| 55 | 'SIGXFSZ',
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| 56 |
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| 57 | # Not part of POSIX, but essential for Oils to work
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| 58 | 'SIGWINCH',
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| 59 | ]
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| 60 |
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| 61 |
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| 62 | def _MakeSignals():
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| 63 | # type: () -> Dict[str, int]
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| 64 | """Piggy-back on CPython signal module.
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| 65 |
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| 66 | This causes portability problems
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| 67 | """
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| 68 | names = {} # type: Dict[str, int]
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| 69 | for name in _PORTABLE_SIGNALS:
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| 70 | int_val = getattr(signal, name)
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| 71 | assert name.startswith('SIG'), name
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| 72 | abbrev = name[3:]
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| 73 | names[abbrev] = int_val
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| 74 | return names
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| 75 |
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| 76 |
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| 77 | NO_SIGNAL = -1
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| 78 |
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| 79 |
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| 80 | def GetNumber(sig_spec):
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| 81 | # type: (str) -> int
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| 82 | return _SIGNAL_NAMES.get(sig_spec, NO_SIGNAL)
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| 83 |
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| 84 |
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| 85 | _SIGNAL_NAMES = _MakeSignals()
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| 86 |
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| 87 | _BY_NUMBER = _SIGNAL_NAMES.items()
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| 88 | _BY_NUMBER.sort(key=lambda x: x[1])
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| 89 |
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| 90 |
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| 91 | def PrintSignals():
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| 92 | # type: () -> None
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| 93 | for name, int_val in _BY_NUMBER:
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| 94 | print('%2d SIG%s' % (int_val, name))
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