--- /dev/null
+# -*-pyrex-*-
+#
+# $Id$
+#
+# In-band signals
+#
+# (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.
+
+import signal
+
+cdef class SelSignal:
+ cdef sig s
+ cdef int _activep
+ cdef readonly int signal
+ cdef _signalled
+ def __new__(me, int sig, signalledproc = None, *hunoz, **hukairz):
+ if sig < 0 or sig >= signal.NSIG:
+ raise ValueError, 'signal number out of range'
+ me.signal = sig
+ me._signalledproc = _checkcallable(signalledproc, 'signalled proc')
+ me._activep = 0
+ def __dealloc__(me):
+ if me._activep:
+ sig_remove(&me.s)
+ property activep:
+ def __get__(me):
+ return _tobool(me._activep)
+ property signalledproc:
+ def __get__(me):
+ return me._signalled
+ def __set__(me, proc):
+ me._signalled = _checkcallable(proc, 'signalled proc')
+ def __del__(me):
+ me._signalled = None
+ def enable(me):
+ if me._activep:
+ raise ValueError, 'already enabled'
+ sig_add(&me.s, me.signal, _sigfunc, <void *>me)
+ me._enabled()
+ return me
+ def disable(me):
+ if not me._activep:
+ raise ValueError, 'already disabled'
+ sig_remove(&me.s)
+ me._disabled()
+ return me
+ cdef _enabled(me):
+ me._activep = 1
+ me.enabled()
+ cdef _disabled(me):
+ me._activep = 0
+ me.disabled()
+ def enabled(me):
+ pass
+ def disabled(me):
+ pass
+ def signalled(me):
+ return _maybecall(me._signalled, ())
+
+cdef void _sigfunc(int sig, void *arg):
+ cdef SelSignal s
+ s = <SelSignal>arg
+ s.signalled()
+
+sig_init(&_sel)
+
+#----- That's all, folks ----------------------------------------------------