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#
# Copyright 2006,2009 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio 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 3, or (at your option)
# any later version.
#
# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
import gnuradio_swig_python as gsp
_prefs_base = gsp.gr_prefs
import ConfigParser
import os
import os.path
import sys
def _user_prefs_filename():
return os.path.expanduser('~/.gnuradio/config.conf')
def _sys_prefs_dirname():
return '/etc/gnuradio/conf.d'
def _bool(x):
"""
Try to coerce obj to a True or False
"""
if isinstance(x, bool):
return x
if isinstance(x, (float, int)):
return bool(x)
raise TypeError, x
class _prefs(_prefs_base):
"""
Derive our 'real class' from the stubbed out base class that has support
for SWIG directors. This allows C++ code to magically and transparently
invoke the methods in this python class.
"""
def __init__(self):
_prefs_base.__init__(self)
self.cp = ConfigParser.RawConfigParser()
self.__getattr__ = lambda self, name: getattr(self.cp, name)
def _sys_prefs_filenames(self):
dir = _sys_prefs_dirname()
try:
fnames = os.listdir(dir)
except (IOError, OSError):
return []
fnames.sort()
return [os.path.join(dir, f) for f in fnames]
def _read_files(self):
filenames = self._sys_prefs_filenames()
filenames.append(_user_prefs_filename())
#print "filenames: ", filenames
self.cp.read(filenames)
# ----------------------------------------------------------------
# These methods override the C++ virtual methods of the same name
# ----------------------------------------------------------------
def has_section(self, section):
return self.cp.has_section(section)
def has_option(self, section, option):
return self.cp.has_option(section, option)
def get_string(self, section, option, default_val):
try:
return self.cp.get(section, option)
except:
return default_val
def get_bool(self, section, option, default_val):
try:
return self.cp.getboolean(section, option)
except:
return default_val
def get_long(self, section, option, default_val):
try:
return self.cp.getint(section, option)
except:
return default_val
def get_double(self, section, option, default_val):
try:
return self.cp.getfloat(section, option)
except:
return default_val
# ----------------------------------------------------------------
# End override of C++ virtual methods
# ----------------------------------------------------------------
_prefs_db = _prefs()
# if GR_DONT_LOAD_PREFS is set, don't load them.
# (make check uses this to avoid interactions.)
if os.getenv("GR_DONT_LOAD_PREFS", None) is None:
_prefs_db._read_files()
_prefs_base.set_singleton(_prefs_db) # tell C++ what instance to use
def prefs():
"""
Return the global preference data base
"""
return _prefs_db
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