264 lines
8.2 KiB
Python
264 lines
8.2 KiB
Python
# Copyright (c) 2018 gevent community
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
# THE SOFTWARE.
|
|
import errno
|
|
import os
|
|
import sys
|
|
|
|
import gevent.core
|
|
from gevent import _compat as gsysinfo
|
|
|
|
VERBOSE = sys.argv.count('-v') > 1
|
|
|
|
# Python implementations
|
|
PYPY = gsysinfo.PYPY
|
|
CPYTHON = not PYPY
|
|
|
|
# Platform/operating system
|
|
WIN = gsysinfo.WIN
|
|
LINUX = gsysinfo.LINUX
|
|
OSX = gsysinfo.OSX
|
|
|
|
PURE_PYTHON = gsysinfo.PURE_PYTHON
|
|
|
|
get_this_psutil_process = gsysinfo.get_this_psutil_process
|
|
|
|
# XXX: Formalize this better
|
|
LIBUV = 'libuv' in gevent.core.loop.__module__ # pylint:disable=no-member
|
|
CFFI_BACKEND = PYPY or LIBUV or 'cffi' in os.getenv('GEVENT_LOOP', '')
|
|
|
|
if '--debug-greentest' in sys.argv:
|
|
sys.argv.remove('--debug-greentest')
|
|
DEBUG = True
|
|
else:
|
|
DEBUG = False
|
|
|
|
RUN_LEAKCHECKS = os.getenv('GEVENTTEST_LEAKCHECK')
|
|
RUN_COVERAGE = os.getenv("COVERAGE_PROCESS_START") or os.getenv("GEVENTTEST_COVERAGE")
|
|
|
|
# Generally, ignore the portions that are only implemented
|
|
# on particular platforms; they generally contain partial
|
|
# implementations completed in different modules.
|
|
PLATFORM_SPECIFIC_SUFFIXES = ('2', '279', '3')
|
|
if WIN:
|
|
PLATFORM_SPECIFIC_SUFFIXES += ('posix',)
|
|
|
|
PY2 = False # Never again
|
|
PY3 = True
|
|
PY35 = None
|
|
PY36 = None
|
|
PY37 = None
|
|
PY38 = None
|
|
PY39 = None
|
|
PY39_EXACTLY = None
|
|
PY310 = None
|
|
PY310_EXACTLY = None
|
|
PY311 = None
|
|
PY312 = None
|
|
PY313 = None
|
|
PY314 = None
|
|
|
|
NON_APPLICABLE_SUFFIXES = ()
|
|
if sys.version_info[0] == 3:
|
|
# Python 3
|
|
NON_APPLICABLE_SUFFIXES += ('2', '279')
|
|
PY2 = False
|
|
PY3 = True
|
|
if sys.version_info[1] >= 5:
|
|
PY35 = True
|
|
if sys.version_info[1] >= 6:
|
|
PY36 = True
|
|
if sys.version_info[1] >= 7:
|
|
PY37 = True
|
|
if sys.version_info[1] >= 8:
|
|
PY38 = True
|
|
if sys.version_info[1] >= 9:
|
|
PY39 = True
|
|
if sys.version_info[:2] == (3, 9):
|
|
PY39_EXACTLY = True
|
|
if sys.version_info[1] >= 10:
|
|
PY310 = True
|
|
if sys.version_info[:2] == (3, 10):
|
|
PY310_EXACTLY = True
|
|
if sys.version_info[1] >= 11:
|
|
PY311 = True
|
|
if sys.version_info[1] >= 12:
|
|
PY312 = True
|
|
if sys.version_info[1] >= 13:
|
|
PY313 = True
|
|
if sys.version_info[1] >= 14:
|
|
PY314 = True
|
|
|
|
else: # pragma: no cover
|
|
# Python 4?
|
|
raise ImportError('Unsupported major python version')
|
|
|
|
PYPY3 = PYPY and PY3
|
|
|
|
if WIN:
|
|
NON_APPLICABLE_SUFFIXES += ("posix",)
|
|
# This is intimately tied to FileObjectPosix
|
|
NON_APPLICABLE_SUFFIXES += ("fileobject2",)
|
|
SHARED_OBJECT_EXTENSION = ".pyd"
|
|
else:
|
|
SHARED_OBJECT_EXTENSION = ".so"
|
|
|
|
# We define GitHub actions to be similar to travis
|
|
RUNNING_ON_GITHUB_ACTIONS = os.environ.get('GITHUB_ACTIONS')
|
|
RUNNING_ON_TRAVIS = os.environ.get('TRAVIS') or RUNNING_ON_GITHUB_ACTIONS
|
|
RUNNING_ON_APPVEYOR = os.environ.get('APPVEYOR')
|
|
RUNNING_ON_CI = RUNNING_ON_TRAVIS or RUNNING_ON_APPVEYOR
|
|
RUNNING_ON_MANYLINUX = os.environ.get('GEVENT_MANYLINUX')
|
|
# I'm not sure how to reliably auto-detect this, without
|
|
# importing platform, something we don't want to do.
|
|
RUNNING_ON_MUSLLINUX = 'musllinux' in os.environ.get('GEVENT_MANYLINUX_NAME', '')
|
|
|
|
if RUNNING_ON_APPVEYOR:
|
|
# We can't exec corecext on appveyor if we haven't run setup.py in
|
|
# 'develop' mode (i.e., we install)
|
|
NON_APPLICABLE_SUFFIXES += ('corecext',)
|
|
|
|
EXPECT_POOR_TIMER_RESOLUTION = (
|
|
PYPY3
|
|
# Really, this is probably only in VMs. But that's all I test
|
|
# Windows with.
|
|
or WIN
|
|
or (LIBUV and PYPY)
|
|
or RUN_COVERAGE
|
|
or (OSX and RUNNING_ON_CI)
|
|
)
|
|
|
|
|
|
CONN_ABORTED_ERRORS = []
|
|
def _make_socket_errnos(*names):
|
|
result = []
|
|
for name in names:
|
|
try:
|
|
x = getattr(errno, name)
|
|
except AttributeError:
|
|
pass
|
|
else:
|
|
result.append(x)
|
|
return frozenset(result)
|
|
|
|
CONN_ABORTED_ERRORS = _make_socket_errnos('WSAECONNABORTED', 'ECONNRESET')
|
|
CONN_REFUSED_ERRORS = _make_socket_errnos('WSAECONNREFUSED', 'ECONNREFUSED')
|
|
|
|
RESOLVER_ARES = os.getenv('GEVENT_RESOLVER') == 'ares'
|
|
RESOLVER_DNSPYTHON = os.getenv('GEVENT_RESOLVER') == 'dnspython'
|
|
|
|
RESOLVER_NOT_SYSTEM = RESOLVER_ARES or RESOLVER_DNSPYTHON
|
|
|
|
def get_python_version():
|
|
"""
|
|
Return a string of the simple python version,
|
|
such as '3.8.0b4'. Handles alpha, beta, release candidate, and final releases.
|
|
"""
|
|
version = '%s.%s.%s' % sys.version_info[:3]
|
|
if sys.version_info[3] == 'alpha':
|
|
version += 'a%s' % sys.version_info[4]
|
|
elif sys.version_info[3] == 'beta':
|
|
version += 'b%s' % sys.version_info[4]
|
|
elif sys.version_info[3] == 'candidate':
|
|
version += 'rc%s' % sys.version_info[4]
|
|
|
|
return version
|
|
|
|
def _parse_version(ver_str):
|
|
try:
|
|
from packaging.version import Version
|
|
# InvalidVersion is a type of ValueError
|
|
except ImportError:
|
|
import warnings
|
|
warnings.warn('packaging.version not available; assuming no advanced Linux backends')
|
|
raise ValueError
|
|
|
|
try:
|
|
return Version(ver_str)
|
|
except ValueError:
|
|
import warnings
|
|
warnings.warn('Unable to parse version %s' % (ver_str,))
|
|
raise
|
|
|
|
def _check_linux_version_at_least(major, minor, error_kind):
|
|
# pylint:disable=too-many-return-statements
|
|
# ^ Yeah, but this is the most linear and simple way to
|
|
# write this.
|
|
from platform import system
|
|
if system() != 'Linux':
|
|
return False
|
|
|
|
from platform import release as _release
|
|
release = _release()
|
|
try:
|
|
# Linux versions like '6.8.0-1014-azure' cannot be parsed
|
|
# by packaging.version.Version, and distutils.LooseVersion, which
|
|
# did handle that, is deprecated. Neither module is guaranteed to be available
|
|
# anyway, so do the best we can manually.
|
|
ver_strings = (release or '0').split('.', 2)
|
|
|
|
if not ver_strings or int(ver_strings[0]) < major: # no way.
|
|
return False
|
|
|
|
if int(ver_strings[0]) > major: # Way newer!
|
|
return True
|
|
|
|
assert major == int(ver_strings[0]) # Exactly the major
|
|
|
|
if len(ver_strings) < 2: # no minor version, assume no
|
|
return False
|
|
|
|
if int(ver_strings[1]) < minor:
|
|
return False
|
|
|
|
assert int(ver_strings[1]) >= minor, (ver_strings[1], minor)
|
|
return True
|
|
except AssertionError:
|
|
raise
|
|
except Exception: # pylint:disable=broad-exception-caught
|
|
import warnings
|
|
warnings.warn('Unable to parse version %r; assuming no %s support' % (
|
|
release, error_kind
|
|
))
|
|
return False
|
|
|
|
def libev_supports_linux_aio():
|
|
# libev requires kernel 4.19 or above to be able to support
|
|
# linux AIO. It can still be compiled in, but will fail to create
|
|
# the loop at runtime.
|
|
return _check_linux_version_at_least(4, 19, 'aio')
|
|
|
|
|
|
def libev_supports_linux_iouring():
|
|
# libev requires kernel XXX to be able to support linux io_uring.
|
|
# It fails with the kernel in fedora rawhide (4.19.76) but
|
|
# works (doesn't fail catastrophically when asked to create one)
|
|
# with kernel 5.3.0 (Ubuntu Bionic)
|
|
return _check_linux_version_at_least(5, 3, 'iouring')
|
|
|
|
|
|
def resolver_dnspython_available():
|
|
# Try hard not to leave around junk we don't have to.
|
|
from importlib import metadata
|
|
try:
|
|
metadata.distribution('dnspython')
|
|
except metadata.PackageNotFoundError:
|
|
return False
|
|
return True
|