本文整理汇总了Python中sys.setdlopenflags方法的典型用法代码示例。如果您正苦于以下问题：Python sys.setdlopenflags方法的具体用法？Python sys.setdlopenflags怎么用？Python sys.setdlopenflags使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sys的用法示例。
在下文中一共展示了sys.setdlopenflags方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_verify_dlopen_flags
# 需要导入模块: import sys [as 别名]
# 或者: from sys import setdlopenflags [as 别名]
def test_verify_dlopen_flags():
if not hasattr(sys, 'setdlopenflags'):
py.test.skip("requires sys.setdlopenflags()")
# Careful with RTLD_GLOBAL. If by chance the FFI is not deleted
# promptly, like on PyPy, then other tests may see the same
# exported symbols as well. So we must not export a simple name
# like 'foo'!
old = sys.getdlopenflags()
try:
ffi1 = FFI()
ffi1.cdef("int foo_verify_dlopen_flags_1;")
sys.setdlopenflags(ffi1.RTLD_GLOBAL | ffi1.RTLD_NOW)
lib1 = ffi1.verify("int foo_verify_dlopen_flags_1;")
finally:
sys.setdlopenflags(old)
ffi2 = FFI()
ffi2.cdef("int *getptr(void);")
lib2 = ffi2.verify("""
extern int foo_verify_dlopen_flags_1;
static int *getptr(void) { return &foo_verify_dlopen_flags_1; }
""")
p = lib2.getptr()
assert ffi1.addressof(lib1, 'foo_verify_dlopen_flags_1') == p 示例2: write_stub
# 需要导入模块: import sys [as 别名]
# 或者: from sys import setdlopenflags [as 别名]
def write_stub(self, output_dir, ext, compile=False):
log.info("writing stub loader for %s to %s",ext._full_name, output_dir)
stub_file = os.path.join(output_dir, *ext._full_name.split('.'))+'.py'
if compile and os.path.exists(stub_file):
raise DistutilsError(stub_file+" already exists! Please delete.")
if not self.dry_run:
f = open(stub_file,'w')
f.write(
'\n'.join([
"def __bootstrap__():",
" global __bootstrap__, __file__, __loader__",
" import sys, os, pkg_resources, imp"+if_dl(", dl"),
" __file__ = pkg_resources.resource_filename(__name__,%r)"
% os.path.basename(ext._file_name),
" del __bootstrap__",
" if '__loader__' in globals():",
" del __loader__",
if_dl(" old_flags = sys.getdlopenflags()"),
" old_dir = os.getcwd()",
" try:",
" os.chdir(os.path.dirname(__file__))",
if_dl(" sys.setdlopenflags(dl.RTLD_NOW)"),
" imp.load_dynamic(__name__,__file__)",
" finally:",
if_dl(" sys.setdlopenflags(old_flags)"),
" os.chdir(old_dir)",
"__bootstrap__()",
"" # terminal \n
])
)
f.close()
if compile:
from distutils.util import byte_compile
byte_compile([stub_file], optimize=0,
force=True, dry_run=self.dry_run)
optimize = self.get_finalized_command('install_lib').optimize
if optimize > 0:
byte_compile([stub_file], optimize=optimize,
force=True, dry_run=self.dry_run)
if os.path.exists(stub_file) and not self.dry_run:
os.unlink(stub_file) 示例3: write_stub
# 需要导入模块: import sys [as 别名]
# 或者: from sys import setdlopenflags [as 别名]
def write_stub(self, output_dir, ext, compile=False):
log.info("writing stub loader for %s to %s",ext._full_name, output_dir)
stub_file = os.path.join(output_dir, *ext._full_name.split('.'))+'.py'
if compile and os.path.exists(stub_file):
raise DistutilsError(stub_file+" already exists! Please delete.")
if not self.dry_run:
f = open(stub_file,'w')
f.write('\n'.join([
"def __bootstrap__():",
" global __bootstrap__, __file__, __loader__",
" import sys, os, pkg_resources, imp"+if_dl(", dl"),
" __file__ = pkg_resources.resource_filename(__name__,%r)"
% os.path.basename(ext._file_name),
" del __bootstrap__",
" if '__loader__' in globals():",
" del __loader__",
if_dl(" old_flags = sys.getdlopenflags()"),
" old_dir = os.getcwd()",
" try:",
" os.chdir(os.path.dirname(__file__))",
if_dl(" sys.setdlopenflags(dl.RTLD_NOW)"),
" imp.load_dynamic(__name__,__file__)",
" finally:",
if_dl(" sys.setdlopenflags(old_flags)"),
" os.chdir(old_dir)",
"__bootstrap__()",
"" # terminal \n
]))
f.close()
if compile:
from distutils.util import byte_compile
byte_compile([stub_file], optimize=0,
force=True, dry_run=self.dry_run)
optimize = self.get_finalized_command('install_lib').optimize
if optimize > 0:
byte_compile([stub_file], optimize=optimize,
force=True, dry_run=self.dry_run)
if os.path.exists(stub_file) and not self.dry_run:
os.unlink(stub_file) 示例4: test_dlopenflags
# 需要导入模块: import sys [as 别名]
# 或者: from sys import setdlopenflags [as 别名]
def test_dlopenflags(self):
self.assertTrue(hasattr(sys, "getdlopenflags"))
self.assertRaises(TypeError, sys.getdlopenflags, 42)
oldflags = sys.getdlopenflags()
self.assertRaises(TypeError, sys.setdlopenflags)
sys.setdlopenflags(oldflags+1)
self.assertEqual(sys.getdlopenflags(), oldflags+1)
sys.setdlopenflags(oldflags) 示例5: _load_libzmq
# 需要导入模块: import sys [as 别名]
# 或者: from sys import setdlopenflags [as 别名]
def _load_libzmq():
"""load bundled libzmq if there is one"""
import sys, ctypes, platform, os
dlopen = hasattr(sys, 'getdlopenflags') # unix-only
# RTLD flags are added to os in Python 3
# get values from os because ctypes values are WRONG on pypy
PYPY = platform.python_implementation().lower() == 'pypy'
if dlopen:
dlflags = sys.getdlopenflags()
# set RTLD_GLOBAL, unset RTLD_LOCAL
flags = ctypes.RTLD_GLOBAL | dlflags
# ctypes.RTLD_LOCAL is 0 on pypy, which is *wrong*
flags &= ~ getattr(os, 'RTLD_LOCAL', 4)
# pypy on darwin needs RTLD_LAZY for some reason
if PYPY and sys.platform == 'darwin':
flags |= getattr(os, 'RTLD_LAZY', 1)
flags &= ~ getattr(os, 'RTLD_NOW', 2)
sys.setdlopenflags(flags)
try:
from . import libzmq
except ImportError:
pass
else:
# store libzmq as zmq._libzmq for backward-compat
globals()['_libzmq'] = libzmq
if PYPY:
# some versions of pypy (5.3 < ? < 5.8) needs explicit CDLL load for some reason,
# otherwise symbols won't be globally available
# do this unconditionally because it should be harmless (?)
ctypes.CDLL(libzmq.__file__, ctypes.RTLD_GLOBAL)
finally:
if dlopen:
sys.setdlopenflags(dlflags) 示例6: test_dlopenflags
# 需要导入模块: import sys [as 别名]
# 或者: from sys import setdlopenflags [as 别名]
def test_dlopenflags(self):
if hasattr(sys, "setdlopenflags"):
self.assertTrue(hasattr(sys, "getdlopenflags"))
self.assertRaises(TypeError, sys.getdlopenflags, 42)
oldflags = sys.getdlopenflags()
self.assertRaises(TypeError, sys.setdlopenflags)
sys.setdlopenflags(oldflags+1)
self.assertEqual(sys.getdlopenflags(), oldflags+1)
sys.setdlopenflags(oldflags) 示例7: test_dlopenflags
# 需要导入模块: import sys [as 别名]
# 或者: from sys import setdlopenflags [as 别名]
def test_dlopenflags(self):
if hasattr(sys, "setdlopenflags"):
self.assert_(hasattr(sys, "getdlopenflags"))
self.assertRaises(TypeError, sys.getdlopenflags, 42)
oldflags = sys.getdlopenflags()
self.assertRaises(TypeError, sys.setdlopenflags)
sys.setdlopenflags(oldflags+1)
self.assertEqual(sys.getdlopenflags(), oldflags+1)
sys.setdlopenflags(oldflags) 示例8: write_stub
# 需要导入模块: import sys [as 别名]
# 或者: from sys import setdlopenflags [as 别名]
def write_stub(self, output_dir, ext, compile=False):
log.info("writing stub loader for %s to %s", ext._full_name,
output_dir)
stub_file = (os.path.join(output_dir, *ext._full_name.split('.')) +
'.py')
if compile and os.path.exists(stub_file):
raise DistutilsError(stub_file + " already exists! Please delete.")
if not self.dry_run:
f = open(stub_file, 'w')
f.write(
'\n'.join([
"def __bootstrap__():",
" global __bootstrap__, __file__, __loader__",
" import sys, os, pkg_resources, imp" + if_dl(", dl"),
" __file__ = pkg_resources.resource_filename"
"(__name__,%r)"
% os.path.basename(ext._file_name),
" del __bootstrap__",
" if '__loader__' in globals():",
" del __loader__",
if_dl(" old_flags = sys.getdlopenflags()"),
" old_dir = os.getcwd()",
" try:",
" os.chdir(os.path.dirname(__file__))",
if_dl(" sys.setdlopenflags(dl.RTLD_NOW)"),
" imp.load_dynamic(__name__,__file__)",
" finally:",
if_dl(" sys.setdlopenflags(old_flags)"),
" os.chdir(old_dir)",
"__bootstrap__()",
"" # terminal \n
])
)
f.close()
if compile:
from distutils.util import byte_compile
byte_compile([stub_file], optimize=0,
force=True, dry_run=self.dry_run)
optimize = self.get_finalized_command('install_lib').optimize
if optimize > 0:
byte_compile([stub_file], optimize=optimize,
force=True, dry_run=self.dry_run)
if os.path.exists(stub_file) and not self.dry_run:
os.unlink(stub_file)