diff options
Diffstat (limited to 'python/helpers/pydev/third_party/wrapped_for_pydev/ctypes/util.py')
-rw-r--r-- | python/helpers/pydev/third_party/wrapped_for_pydev/ctypes/util.py | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/python/helpers/pydev/third_party/wrapped_for_pydev/ctypes/util.py b/python/helpers/pydev/third_party/wrapped_for_pydev/ctypes/util.py new file mode 100644 index 000000000000..6db0cfbb5ecc --- /dev/null +++ b/python/helpers/pydev/third_party/wrapped_for_pydev/ctypes/util.py @@ -0,0 +1,124 @@ +#@PydevCodeAnalysisIgnore +import sys, os +import ctypes + +# find_library(name) returns the pathname of a library, or None. +if os.name == "nt": + def find_library(name): + # See MSDN for the REAL search order. + for directory in os.environ['PATH'].split(os.pathsep): + fname = os.path.join(directory, name) + if os.path.exists(fname): + return fname + if fname.lower().endswith(".dll"): + continue + fname = fname + ".dll" + if os.path.exists(fname): + return fname + return None + +if os.name == "ce": + # search path according to MSDN: + # - absolute path specified by filename + # - The .exe launch directory + # - the Windows directory + # - ROM dll files (where are they?) + # - OEM specified search path: HKLM\Loader\SystemPath + def find_library(name): + return name + +if os.name == "posix" and sys.platform == "darwin": + from ctypes.macholib.dyld import dyld_find as _dyld_find + def find_library(name): + possible = ['lib%s.dylib' % name, + '%s.dylib' % name, + '%s.framework/%s' % (name, name)] + for name in possible: + try: + return _dyld_find(name) + except ValueError: + continue + return None + +elif os.name == "posix": + # Andreas Degert's find functions, using gcc, /sbin/ldconfig, objdump + import re, tempfile + + def _findLib_gcc(name): + expr = '[^\(\)\s]*lib%s\.[^\(\)\s]*' % name + cmd = 'if type gcc &>/dev/null; then CC=gcc; else CC=cc; fi;' \ + '$CC -Wl,-t -o /dev/null 2>&1 -l' + name + try: + fdout, outfile = tempfile.mkstemp() + fd = os.popen(cmd) + trace = fd.read() + err = fd.close() + finally: + try: + os.unlink(outfile) + except OSError, e: + import errno + if e.errno != errno.ENOENT: + raise + res = re.search(expr, trace) + if not res: + return None + return res.group(0) + + def _findLib_ld(name): + expr = '/[^\(\)\s]*lib%s\.[^\(\)\s]*' % name + res = re.search(expr, os.popen('/sbin/ldconfig -p 2>/dev/null').read()) + if not res: + # Hm, this works only for libs needed by the python executable. + cmd = 'ldd %s 2>/dev/null' % sys.executable + res = re.search(expr, os.popen(cmd).read()) + if not res: + return None + return res.group(0) + + def _get_soname(f): + cmd = "objdump -p -j .dynamic 2>/dev/null " + f + res = re.search(r'\sSONAME\s+([^\s]+)', os.popen(cmd).read()) + if not res: + return None + return res.group(1) + + def find_library(name): + lib = _findLib_ld(name) or _findLib_gcc(name) + if not lib: + return None + return _get_soname(lib) + +################################################################ +# test code + +def test(): + from ctypes import cdll + if os.name == "nt": + sys.stdout.write('%s\n' % (cdll.msvcrt,)) + sys.stdout.write('%s\n' % (cdll.load("msvcrt"),)) + sys.stdout.write('%s\n' % (find_library("msvcrt"),)) + + if os.name == "posix": + # find and load_version + sys.stdout.write('%s\n' % (find_library("m"),)) + sys.stdout.write('%s\n' % (find_library("c"),)) + sys.stdout.write('%s\n' % (find_library("bz2"),)) + + # getattr +## print_ cdll.m +## print_ cdll.bz2 + + # load + if sys.platform == "darwin": + sys.stdout.write('%s\n' % (cdll.LoadLibrary("libm.dylib"),)) + sys.stdout.write('%s\n' % (cdll.LoadLibrary("libcrypto.dylib"),)) + sys.stdout.write('%s\n' % (cdll.LoadLibrary("libSystem.dylib"),)) + sys.stdout.write('%s\n' % (cdll.LoadLibrary("System.framework/System"),)) + else: + sys.stdout.write('%s\n' % (cdll.LoadLibrary("libm.so"),)) + sys.stdout.write('%s\n' % (cdll.LoadLibrary("libcrypt.so"),)) + sys.stdout.write('%s\n' % (find_library("crypt"),)) + +if __name__ == "__main__": + test() |