X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb-python/blobdiff_plain/b47818ea1ee2c0755249b9ca940083b6dd73acb3..614c3bbf3c1c6fede55feae44370b0fe6d3fb5f0:/catacomb/__init__.py

diff --git a/catacomb/__init__.py b/catacomb/__init__.py
index 5e7aa89..ff771b9 100644
--- a/catacomb/__init__.py
+++ b/catacomb/__init__.py
@@ -25,18 +25,57 @@
 
 from __future__ import with_statement
 
-import _base
-import types as _types
 from binascii import hexlify as _hexify, unhexlify as _unhexify
 from contextlib import contextmanager as _ctxmgr
-from sys import argv as _argv
+try: import DLFCN as _dlfcn
+except ImportError: _dlfcn = None
+import os as _os
 from struct import pack as _pack
+import sys as _sys
+import types as _types
+
+###--------------------------------------------------------------------------
+### Import the main C extension module.
+
+try:
+  _dlflags = _odlflags = _sys.getdlopenflags()
+except AttributeError:
+  _dlflags = _odlflags = -1
+
+## Set the `deep binding' flag.  Python has its own different MD5
+## implementation, and some distributions export `md5_init' and friends so
+## they override our versions, which doesn't end well.  Figure out how to
+## turn this flag on so we don't have the problem.
+if _dlflags >= 0:
+  try: _dlflags |= _dlfcn.RTLD_DEEPBIND
+  except AttributeError:
+    try: _dlflags |= _os.RTLD_DEEPBIND
+    except AttributeError:
+      if _os.uname()[0] == 'Linux': _dlflags |= 8 # magic knowledge
+      else: pass # can't do this.
+  _sys.setdlopenflags(_dlflags)
+
+import _base
+
+if _odlflags >= 0:
+  _sys.setdlopenflags(_odlflags)
+
+del _dlflags, _odlflags
 
 ###--------------------------------------------------------------------------
 ### Basic stuff.
 
-## For the benefit of the default keyreporter, we need the program na,e.
-_base._ego(_argv[0])
+## For the benefit of the default keyreporter, we need the program name.
+_base._ego(_sys.argv[0])
+
+## Register our module.
+_base._set_home_module(_sys.modules[__name__])
+def default_lostexchook(why, ty, val, tb):
+  """`catacomb.lostexchook(WHY, TY, VAL, TB)' reports lost exceptions."""
+  _sys.stderr.write("\n\n!!! LOST EXCEPTION: %s\n" % why)
+  _sys.excepthook(ty, val, tb)
+  _sys.stderr.write("\n")
+lostexchook = default_lostexchook
 
 ## How to fix a name back into the right identifier.  Alas, the rules are not
 ## consistent.
@@ -199,7 +238,7 @@ class _ShakeBase (_HashBase):
 
   ## Delegate methods...
   def copy(me): new = me.__class__(); new._copy(me)
-  def _copy(me, other): me._h = other._h
+  def _copy(me, other): me._h = other._h.copy()
   def hash(me, m): me._h.hash(m); return me
   def xof(me): me._h.xof(); return me
   def get(me, n): return me._h.get(n)