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/exec_helpers/proc_enums.py

#    Copyright 2018 Alexey Stepanov aka penguinolog.

#    Copyright 2016 Mirantis, Inc.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

"""Process enumerators.

Linux signals, Linux & bash return codes.
"""

from __future__ import absolute_import
from __future__ import division
from __future__ import unicode_literals

import enum
import sys
import typing  # noqa  # pylint: disable=unused-import

import six

__all__ = ("SigNum", "ExitCodes", "exit_code_to_enum", "exit_codes_to_enums", "EXPECTED", "INVALID")


@enum.unique
class SigNum(int, enum.Enum):
    """Signal enumerators."""

    SIGHUP = 1  # Hangup (POSIX).
    SIGINT = 2  # Interrupt (ANSI).
    SIGQUIT = 3  # Quit (POSIX).
    SIGILL = 4  # Illegal instruction (ANSI).
    SIGTRAP = 5  # Trace trap (POSIX).
    SIGABRT = 6  # Abort (ANSI).
    SIGBUS = 7  # BUS error (4.2 BSD).
    SIGFPE = 8  # Floating-point exception (ANSI).
    SIGKILL = 9  # Kill, unblockable (POSIX).
    SIGUSR1 = 10  # User-defined signal 1 (POSIX).
    SIGSEGV = 11  # Segmentation violation (ANSI).
    SIGUSR2 = 12  # User-defined signal 2 (POSIX).
    SIGPIPE = 13  # Broken pipe (POSIX).
    SIGALRM = 14  # Alarm clock (POSIX).
    SIGTERM = 15  # Termination (ANSI).
    SIGSTKFLT = 16  # Stack fault.
    SIGCHLD = 17  # Child status has changed (POSIX).
    SIGCONT = 18  # Continue (POSIX).
    SIGSTOP = 19  # Stop, unblockable (POSIX).
    SIGTSTP = 20  # Keyboard stop (POSIX).
    SIGTTIN = 21  # Background read from tty (POSIX).
    SIGTTOU = 22  # Background write to tty (POSIX).
    SIGURG = 23  # Urgent condition on socket (4.2 BSD).
    SIGXCPU = 24  # CPU limit exceeded (4.2 BSD).
    SIGXFSZ = 25  # File size limit exceeded (4.2 BSD).
    SIGVTALRM = 26  # Virtual alarm clock (4.2 BSD).
    SIGPROF = 27  # Profiling alarm clock (4.2 BSD).
    SIGWINCH = 28  # Window size change (4.3 BSD, Sun).
    SIGPOLL = 29  # Pollable event occurred (System V)
    SIGPWR = 30  # Power failure restart (System V).
    SIGSYS = 31  # Bad system call.

    def __str__(self):  # type: () -> str  # pragma: no cover
        """Representation for logs."""
        return "{self.name}<{self.value:d}(0x{self.value:02X})>".format(  # pylint: disable=missing-format-attribute
            self=self
        )


if six.PY3:  # pragma: no cover
    digit_type = int
else:  # pragma: no cover
    # noinspection PyUnresolvedReferences
    digit_type = long  # noqa  # pylint: disable=undefined-variable, long-builtin


@enum.unique
class ExitCodes(digit_type, enum.Enum):
    """Linux & bash exit codes."""

    EX_OK = 0  # successful termination

    EX_INVALID = 0xDEADBEEF  # uint32 debug value. Impossible for POSIX

    EX_ERROR = 1  # general failure
    EX_BUILTIN = 2  # Misuse of shell builtins (according to Bash)

    EX_USAGE = 64  # command line usage error
    EX_DATAERR = 65  # data format error
    EX_NOINPUT = 66  # cannot open input
    EX_NOUSER = 67  # addressee unknown
    EX_NOHOST = 68  # host name unknown
    EX_UNAVAILABLE = 69  # service unavailable
    EX_SOFTWARE = 70  # internal software error
    EX_OSERR = 71  # system error (e.g., can't fork)
    EX_OSFILE = 72  # critical OS file missing
    EX_CANTCREAT = 73  # can't create (user) output file
    EX_IOERR = 74  # input/output error
    EX_TEMPFAIL = 75  # temp failure; user is invited to retry
    EX_PROTOCOL = 76  # remote error in protocol
    EX_NOPERM = 77  # permission denied
    EX_CONFIG = 78  # configuration error

    EX_NOEXEC = 126  # If a command is found but is not executable
    EX_NOCMD = 127  # If a command is not found

    # Signal exits

    EX_SIGHUP = -SigNum.SIGHUP
    EX_SIGINT = -SigNum.SIGINT
    EX_SIGQUIT = -SigNum.SIGQUIT
    EX_SIGILL = -SigNum.SIGILL
    EX_SIGTRAP = -SigNum.SIGTRAP
    EX_SIGABRT = -SigNum.SIGABRT
    EX_SIGBUS = -SigNum.SIGBUS
    EX_SIGFPE = -SigNum.SIGFPE
    EX_SIGKILL = -SigNum.SIGKILL
    EX_SIGUSR1 = -SigNum.SIGUSR1
    EX_SIGSEGV = -SigNum.SIGSEGV
    EX_SIGUSR2 = -SigNum.SIGUSR2
    EX_SIGPIPE = -SigNum.SIGPIPE
    EX_SIGALRM = -SigNum.SIGALRM
    EX_SIGTERM = -SigNum.SIGTERM
    EX_SIGSTKFLT = -SigNum.SIGSTKFLT
    EX_SIGCHLD = -SigNum.SIGCHLD
    EX_SIGCONT = -SigNum.SIGCONT
    EX_SIGSTOP = -SigNum.SIGSTOP
    EX_SIGTSTP = -SigNum.SIGTSTP
    EX_SIGTTIN = -SigNum.SIGTTIN
    EX_SIGTTOU = -SigNum.SIGTTOU
    EX_SIGURG = -SigNum.SIGURG
    EX_SIGXCPU = -SigNum.SIGXCPU
    EX_SIGXFSZ = -SigNum.SIGXFSZ
    EX_SIGVTALRM = -SigNum.SIGVTALRM
    EX_SIGPROF = -SigNum.SIGPROF
    EX_SIGWINCH = -SigNum.SIGWINCH
    EX_SIGPOLL = -SigNum.SIGPOLL
    EX_SIGPWR = -SigNum.SIGPWR
    EX_SIGSYS = -SigNum.SIGSYS

    # Signal exits shell:
    SH_EX_SIGHUP = 128 + SigNum.SIGHUP
    SH_EX_SIGINT = 128 + SigNum.SIGINT
    SH_EX_SIGQUIT = 128 + SigNum.SIGQUIT
    SH_EX_SIGILL = 128 + SigNum.SIGILL
    SH_EX_SIGTRAP = 128 + SigNum.SIGTRAP
    SH_EX_SIGABRT = 128 + SigNum.SIGABRT
    SH_EX_SIGBUS = 128 + SigNum.SIGBUS
    SH_EX_SIGFPE = 128 + SigNum.SIGFPE
    SH_EX_SIGKILL = 128 + SigNum.SIGKILL
    SH_EX_SIGUSR1 = 128 + SigNum.SIGUSR1
    SH_EX_SIGSEGV = 128 + SigNum.SIGSEGV
    SH_EX_SIGUSR2 = 128 + SigNum.SIGUSR2
    SH_EX_SIGPIPE = 128 + SigNum.SIGPIPE
    SH_EX_SIGALRM = 128 + SigNum.SIGALRM
    SH_EX_SIGTERM = 128 + SigNum.SIGTERM
    SH_EX_SIGSTKFLT = 128 + SigNum.SIGSTKFLT
    SH_EX_SIGCHLD = 128 + SigNum.SIGCHLD
    SH_EX_SIGCONT = 128 + SigNum.SIGCONT
    SH_EX_SIGSTOP = 128 + SigNum.SIGSTOP
    SH_EX_SIGTSTP = 128 + SigNum.SIGTSTP
    SH_EX_SIGTTIN = 128 + SigNum.SIGTTIN
    SH_EX_SIGTTOU = 128 + SigNum.SIGTTOU
    SH_EX_SIGURG = 128 + SigNum.SIGURG
    SH_EX_SIGXCPU = 128 + SigNum.SIGXCPU
    SH_EX_SIGXFSZ = 128 + SigNum.SIGXFSZ
    SH_EX_SIGVTALRM = 128 + SigNum.SIGVTALRM
    SH_EX_SIGPROF = 128 + SigNum.SIGPROF
    SH_EX_SIGWINCH = 128 + SigNum.SIGWINCH
    SH_EX_SIGPOLL = 128 + SigNum.SIGPOLL
    SH_EX_SIGPWR = 128 + SigNum.SIGPWR
    SH_EX_SIGSYS = 128 + SigNum.SIGSYS

    def __str__(self):  # type: () -> str
        """Representation for logs."""
        return "{self.name}<{self.value:d}(0x{self.value:02X})>".format(  # pylint: disable=missing-format-attribute
            self=self
        )


EXPECTED = 0 if "win32" == sys.platform else ExitCodes.EX_OK
INVALID = 0xDEADBEEF if "win32" == sys.platform else ExitCodes.EX_INVALID


def exit_code_to_enum(code):  # type: (typing.Union[int, ExitCodes]) -> typing.Union[int, ExitCodes]  # pragma: no cover
    """Convert exit code to enum if possible."""
    if "win32" == sys.platform:
        return float(code)
    if isinstance(code, int) and code in ExitCodes.__members__.values():
        return ExitCodes(code)
    return code


def exit_codes_to_enums(
    codes=None  # type: typing.Optional[typing.Iterable[typing.Union[int, ExitCodes]]]
):  # type: (...) -> typing.Iterable[typing.Union[int, ExitCodes]]
    """Convert integer exit codes to enums."""
    if codes is None:
        return (EXPECTED,)
    return tuple(exit_code_to_enum(code) for code in codes)

1	# Copyright 2018 Alexey Stepanov aka penguinolog.
2
3	# Copyright 2016 Mirantis, Inc.
4	#
5	# Licensed under the Apache License, Version 2.0 (the "License"); you may
6	# not use this file except in compliance with the License. You may obtain
7	# a copy of the License at
8	#
9	# http://www.apache.org/licenses/LICENSE-2.0
10	#
11	# Unless required by applicable law or agreed to in writing, software
12	# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
13	# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14	# License for the specific language governing permissions and limitations
15	# under the License.
16
17	"""Process enumerators.	2✔
18
19	Linux signals, Linux & bash return codes.
20	"""
21
22	from __future__ import absolute_import	2✔
23	from __future__ import division	2✔
24	from __future__ import unicode_literals	2✔
25
26	import enum	2✔
27	import sys	2✔
28	import typing # noqa # pylint: disable=unused-import	2✔
29
30	import six	2✔
31
32	__all__ = ("SigNum", "ExitCodes", "exit_code_to_enum", "exit_codes_to_enums", "EXPECTED", "INVALID")	2✔
33
34
35	@enum.unique	2✔
36	class SigNum(int, enum.Enum):	2✔
37	"""Signal enumerators."""
38
39	SIGHUP = 1 # Hangup (POSIX).	2✔
40	SIGINT = 2 # Interrupt (ANSI).	2✔
41	SIGQUIT = 3 # Quit (POSIX).	2✔
42	SIGILL = 4 # Illegal instruction (ANSI).	2✔
43	SIGTRAP = 5 # Trace trap (POSIX).	2✔
44	SIGABRT = 6 # Abort (ANSI).	2✔
45	SIGBUS = 7 # BUS error (4.2 BSD).	2✔
46	SIGFPE = 8 # Floating-point exception (ANSI).	2✔
47	SIGKILL = 9 # Kill, unblockable (POSIX).	2✔
48	SIGUSR1 = 10 # User-defined signal 1 (POSIX).	2✔
49	SIGSEGV = 11 # Segmentation violation (ANSI).	2✔
50	SIGUSR2 = 12 # User-defined signal 2 (POSIX).	2✔
51	SIGPIPE = 13 # Broken pipe (POSIX).	2✔
52	SIGALRM = 14 # Alarm clock (POSIX).	2✔
53	SIGTERM = 15 # Termination (ANSI).	2✔
54	SIGSTKFLT = 16 # Stack fault.	2✔
55	SIGCHLD = 17 # Child status has changed (POSIX).	2✔
56	SIGCONT = 18 # Continue (POSIX).	2✔
57	SIGSTOP = 19 # Stop, unblockable (POSIX).	2✔
58	SIGTSTP = 20 # Keyboard stop (POSIX).	2✔
59	SIGTTIN = 21 # Background read from tty (POSIX).	2✔
60	SIGTTOU = 22 # Background write to tty (POSIX).	2✔
61	SIGURG = 23 # Urgent condition on socket (4.2 BSD).	2✔
62	SIGXCPU = 24 # CPU limit exceeded (4.2 BSD).	2✔
63	SIGXFSZ = 25 # File size limit exceeded (4.2 BSD).	2✔
64	SIGVTALRM = 26 # Virtual alarm clock (4.2 BSD).	2✔
65	SIGPROF = 27 # Profiling alarm clock (4.2 BSD).	2✔
66	SIGWINCH = 28 # Window size change (4.3 BSD, Sun).	2✔
67	SIGPOLL = 29 # Pollable event occurred (System V)	2✔
68	SIGPWR = 30 # Power failure restart (System V).	2✔
69	SIGSYS = 31 # Bad system call.	2✔
70
71	def __str__(self): # type: () -> str # pragma: no cover
72	"""Representation for logs."""
73	return "{self.name}<{self.value:d}(0x{self.value:02X})>".format( # pylint: disable=missing-format-attribute
74	self=self
75	)
76
77
78	if six.PY3: # pragma: no cover
79	digit_type = int
80	else: # pragma: no cover
81	# noinspection PyUnresolvedReferences
82	digit_type = long # noqa # pylint: disable=undefined-variable, long-builtin
83
84
85	@enum.unique	2✔
86	class ExitCodes(digit_type, enum.Enum):	2✔
87	"""Linux & bash exit codes."""
88
89	EX_OK = 0 # successful termination	2✔
90
91	EX_INVALID = 0xDEADBEEF # uint32 debug value. Impossible for POSIX	2✔
92
93	EX_ERROR = 1 # general failure	2✔
94	EX_BUILTIN = 2 # Misuse of shell builtins (according to Bash)	2✔
95
96	EX_USAGE = 64 # command line usage error	2✔
97	EX_DATAERR = 65 # data format error	2✔
98	EX_NOINPUT = 66 # cannot open input	2✔
99	EX_NOUSER = 67 # addressee unknown	2✔
100	EX_NOHOST = 68 # host name unknown	2✔
101	EX_UNAVAILABLE = 69 # service unavailable	2✔
102	EX_SOFTWARE = 70 # internal software error	2✔
103	EX_OSERR = 71 # system error (e.g., can't fork)	2✔
104	EX_OSFILE = 72 # critical OS file missing	2✔
105	EX_CANTCREAT = 73 # can't create (user) output file	2✔
106	EX_IOERR = 74 # input/output error	2✔
107	EX_TEMPFAIL = 75 # temp failure; user is invited to retry	2✔
108	EX_PROTOCOL = 76 # remote error in protocol	2✔
109	EX_NOPERM = 77 # permission denied	2✔
110	EX_CONFIG = 78 # configuration error	2✔
111
112	EX_NOEXEC = 126 # If a command is found but is not executable	2✔
113	EX_NOCMD = 127 # If a command is not found	2✔
114
115	# Signal exits
116
117	EX_SIGHUP = -SigNum.SIGHUP	2✔
118	EX_SIGINT = -SigNum.SIGINT	2✔
119	EX_SIGQUIT = -SigNum.SIGQUIT	2✔
120	EX_SIGILL = -SigNum.SIGILL	2✔
121	EX_SIGTRAP = -SigNum.SIGTRAP	2✔
122	EX_SIGABRT = -SigNum.SIGABRT	2✔
123	EX_SIGBUS = -SigNum.SIGBUS	2✔
124	EX_SIGFPE = -SigNum.SIGFPE	2✔
125	EX_SIGKILL = -SigNum.SIGKILL	2✔
126	EX_SIGUSR1 = -SigNum.SIGUSR1	2✔
127	EX_SIGSEGV = -SigNum.SIGSEGV	2✔
128	EX_SIGUSR2 = -SigNum.SIGUSR2	2✔
129	EX_SIGPIPE = -SigNum.SIGPIPE	2✔
130	EX_SIGALRM = -SigNum.SIGALRM	2✔
131	EX_SIGTERM = -SigNum.SIGTERM	2✔
132	EX_SIGSTKFLT = -SigNum.SIGSTKFLT	2✔
133	EX_SIGCHLD = -SigNum.SIGCHLD	2✔
134	EX_SIGCONT = -SigNum.SIGCONT	2✔
135	EX_SIGSTOP = -SigNum.SIGSTOP	2✔
136	EX_SIGTSTP = -SigNum.SIGTSTP	2✔
137	EX_SIGTTIN = -SigNum.SIGTTIN	2✔
138	EX_SIGTTOU = -SigNum.SIGTTOU	2✔
139	EX_SIGURG = -SigNum.SIGURG	2✔
140	EX_SIGXCPU = -SigNum.SIGXCPU	2✔
141	EX_SIGXFSZ = -SigNum.SIGXFSZ	2✔
142	EX_SIGVTALRM = -SigNum.SIGVTALRM	2✔
143	EX_SIGPROF = -SigNum.SIGPROF	2✔
144	EX_SIGWINCH = -SigNum.SIGWINCH	2✔
145	EX_SIGPOLL = -SigNum.SIGPOLL	2✔
146	EX_SIGPWR = -SigNum.SIGPWR	2✔
147	EX_SIGSYS = -SigNum.SIGSYS	2✔
148
149	# Signal exits shell:
150	SH_EX_SIGHUP = 128 + SigNum.SIGHUP	2✔
151	SH_EX_SIGINT = 128 + SigNum.SIGINT	2✔
152	SH_EX_SIGQUIT = 128 + SigNum.SIGQUIT	2✔
153	SH_EX_SIGILL = 128 + SigNum.SIGILL	2✔
154	SH_EX_SIGTRAP = 128 + SigNum.SIGTRAP	2✔
155	SH_EX_SIGABRT = 128 + SigNum.SIGABRT	2✔
156	SH_EX_SIGBUS = 128 + SigNum.SIGBUS	2✔
157	SH_EX_SIGFPE = 128 + SigNum.SIGFPE	2✔
158	SH_EX_SIGKILL = 128 + SigNum.SIGKILL	2✔
159	SH_EX_SIGUSR1 = 128 + SigNum.SIGUSR1	2✔
160	SH_EX_SIGSEGV = 128 + SigNum.SIGSEGV	2✔
161	SH_EX_SIGUSR2 = 128 + SigNum.SIGUSR2	2✔
162	SH_EX_SIGPIPE = 128 + SigNum.SIGPIPE	2✔
163	SH_EX_SIGALRM = 128 + SigNum.SIGALRM	2✔
164	SH_EX_SIGTERM = 128 + SigNum.SIGTERM	2✔
165	SH_EX_SIGSTKFLT = 128 + SigNum.SIGSTKFLT	2✔
166	SH_EX_SIGCHLD = 128 + SigNum.SIGCHLD	2✔
167	SH_EX_SIGCONT = 128 + SigNum.SIGCONT	2✔
168	SH_EX_SIGSTOP = 128 + SigNum.SIGSTOP	2✔
169	SH_EX_SIGTSTP = 128 + SigNum.SIGTSTP	2✔
170	SH_EX_SIGTTIN = 128 + SigNum.SIGTTIN	2✔
171	SH_EX_SIGTTOU = 128 + SigNum.SIGTTOU	2✔
172	SH_EX_SIGURG = 128 + SigNum.SIGURG	2✔
173	SH_EX_SIGXCPU = 128 + SigNum.SIGXCPU	2✔
174	SH_EX_SIGXFSZ = 128 + SigNum.SIGXFSZ	2✔
175	SH_EX_SIGVTALRM = 128 + SigNum.SIGVTALRM	2✔
176	SH_EX_SIGPROF = 128 + SigNum.SIGPROF	2✔
177	SH_EX_SIGWINCH = 128 + SigNum.SIGWINCH	2✔
178	SH_EX_SIGPOLL = 128 + SigNum.SIGPOLL	2✔
179	SH_EX_SIGPWR = 128 + SigNum.SIGPWR	2✔
180	SH_EX_SIGSYS = 128 + SigNum.SIGSYS	2✔
181
182	def __str__(self): # type: () -> str	2✔
183	"""Representation for logs."""
184	return "{self.name}<{self.value:d}(0x{self.value:02X})>".format( # pylint: disable=missing-format-attribute	2✔
185	self=self
186	)
187
188
189	EXPECTED = 0 if "win32" == sys.platform else ExitCodes.EX_OK	2✔
190	INVALID = 0xDEADBEEF if "win32" == sys.platform else ExitCodes.EX_INVALID	2✔
191
192
193	def exit_code_to_enum(code): # type: (typing.Union[int, ExitCodes]) -> typing.Union[int, ExitCodes] # pragma: no cover
194	"""Convert exit code to enum if possible."""
195	if "win32" == sys.platform:
196	return float(code)
197	if isinstance(code, int) and code in ExitCodes.__members__.values():
198	return ExitCodes(code)
199	return code
200
201
202	def exit_codes_to_enums(	2✔
203	codes=None # type: typing.Optional[typing.Iterable[typing.Union[int, ExitCodes]]]
204	): # type: (...) -> typing.Iterable[typing.Union[int, ExitCodes]]
205	"""Convert integer exit codes to enums."""
206	if codes is None:	2✔
207	return (EXPECTED,)	×
208	return tuple(exit_code_to_enum(code) for code in codes)	2✔

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