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 const char *_text_strlen(object s, Py_ssize_t *sz) except NULL:
  27   cdef const char *p
  28   TEXT_PTRLEN(s, &p, sz)
  29   return p
  30
  31 cdef object _oserror():
  32   raise OSError(errno, strerror(errno))
  33
  34 cdef int _getfd(object fdobj):
  35   try:
  36     fd = int(fdobj)
  37   except TypeError:
  38     fd = fdobj.fileno()
  39   return fd
  40
  41 cdef object _checkcallable(object f, object what):
  42   if f is not None and not callable(f):
  43     raise TypeError('%s must be callable' % what)
  44   return f
  45
  46 cdef object _maybecall(object f, object args):
  47   if f is None:
  48     return None
  49   return f(*args)
  50
  51 ###----- That's all, folks --------------------------------------------------