General reorganization.

[mLib-python] / utils.pyx

# -*-pyrex-*-
#
# $Id$
#
# Miscellaneous support gubbins
#
# (c) 2005 Straylight/Edgeware
#

#----- Licensing notice -----------------------------------------------------
#
# This file is part of the Python interface to mLib.
#
# mLib/Python is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# 
# mLib/Python is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with mLib/Python; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

cdef object _u32(uint32 x):
  if x < LONG_MAX:
    return PyInt_FromLong(x)
  else:
    return PyLong_FromUnsignedLong(x)

cdef object _oserror():
  raise OSError, (errno, strerror(errno))

cdef object _tobool(int i):
  if i:
    return True
  else:
    return False

cdef int _getfd(object fdobj):
  try:
    return fdobj
  except TypeError:
    return fdobj.fileno()

cdef object _checkcallable(f, what):
  if f is not None and not callable(f):
    raise TypeError, '%s must be callable' % what
  return f

cdef object _maybecall(f, args):
  if f is None:
    return None
  return f(*args)

#----- That's all, folks ----------------------------------------------------