Python sys.setdlopenflags方法代码示例

# 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 

# 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) 

# 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) 

# 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) 

# 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) 

# 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) 

# 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) 

# 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)