[ctypes-commit] ctypes/ctypes _loader.py,NONE,1.1.2.1

[Thomas H. <th...@us...>]

Update of /cvsroot/ctypes/ctypes/ctypes
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv3862

Added Files:
      Tag: branch_1_0
	_loader.py 
Log Message:
Work in progress.


--- NEW FILE: _loader.py ---
# WORK IN PROGRESS!  DO NOT (yet) USE!
import sys
import ctypes
from _ctypes import dlopen, RTLD_LOCAL, RTLD_GLOBAL

class LibraryLoader(object):

    def __init__(self, dlltype, mode=RTLD_LOCAL):
        self._dlltype = dlltype
        self._mode = mode

    def load(self, libname, mode=None):
        if mode is None:
            mode = self._mode
        return self._dlltype(libname, mode)

    def load_version(self, name, version, mode=None):
        return self.load("lib%s.so.%s" % (name, version), mode)

    def find(self, name, mode=None):
        from ctypes.util import findLib
        for libname in findLib(name):
            try:
                return self.load(libname, mode)
            except OSError, error:
                continue
        else:
            raise OSError, error

    def __getattr__(self, name):
        if name.startswith("_"):
            raise AttributeError(name)
        return self.find(name)

class CDLL(object):
    def __init__(self, name, mode):
        self._handle = dlopen(name, mode)
        self._name = name

    def __repr__(self):
        return "<%s '%s', handle %x at %x>" % \
               (self.__class__.__name__, self._name,
                (self._handle & (sys.maxint*2 + 1)),
                id(self))

cdll = LibraryLoader(CDLL)

################################################################
# test code

print cdll.load("libc.so.6")
print cdll.load("libGL.so", RTLD_GLOBAL)

print cdll.load_version("m", "6")

print cdll.m
print cdll.png
print cdll._a_b_c_
print cdll.xyz