mdw@git.distorted.org.uk Git - mLib-python/blob - utils.pyx

   1 ### -*-pyrex-*-
   2 ###
   3 ### Miscellaneous support gubbins
   4 ###
   5 ### (c) 2005 Straylight/Edgeware
   6 ###
   7
   8 ###----- Licensing notice ---------------------------------------------------
   9 ###
  10 ### This file is part of the Python interface to mLib.
  11 ###
  12 ### mLib/Python is free software; you can redistribute it and/or modify
  13 ### it under the terms of the GNU General Public License as published by
  14 ### the Free Software Foundation; either version 2 of the License, or
  15 ### (at your option) any later version.
  16 ###
  17 ### mLib/Python is distributed in the hope that it will be useful,
  18 ### but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ### GNU General Public License for more details.
  21 ###
  22 ### You should have received a copy of the GNU General Public License
  23 ### along with mLib/Python; if not, write to the Free Software Foundation,
  24 ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25
  26 cdef object _u32(uint32 x):
  27   if x <= LONG_MAX:
  28     return PyInt_FromLong(x)
  29   else:
  30     return PyLong_FromUnsignedLong(x)
  31
  32 cdef object _oserror():
  33   raise OSError, (errno, strerror(errno))
  34
  35 cdef object _tobool(int i):
  36   if i:
  37     return True
  38   else:
  39     return False
  40
  41 cdef int _getfd(object fdobj):
  42   try:
  43     fd = int(fdobj)
  44   except TypeError:
  45     PyErr_Clear()
  46     fd = fdobj.fileno()
  47   return fd
  48
  49 cdef object _checkcallable(f, what):
  50   if f is not None and not callable(f):
  51     raise TypeError, '%s must be callable' % what
  52   return f
  53
  54 cdef object _maybecall(f, args):
  55   if f is None:
  56     return None
  57   return f(*args)
  58
  59 ###----- That's all, folks --------------------------------------------------