X-Git-Url: https://git.distorted.org.uk/~mdw/mLib-python/blobdiff_plain/20bce5e92b01cd928f26b61be78215117039c561..579d01693c86259110fe7a2c2a6f005f1bdbad5b:/sel-timer.pyx

diff --git a/sel-timer.pyx b/sel-timer.pyx
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+# -*-pyrex-*-
+#
+# $Id$
+#
+# Timer selectors
+#
+# (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 double _tvtofloat(timeval *tv):
+  return tv.tv_sec + (tv.tv_usec / 1000000)
+cdef void _floattotv(timeval *tv, double t):
+  cdef double s, us
+  us = modf(t, &s)
+  tv.tv_sec = s
+  tv.tv_usec = us * 1000000
+
+cdef class SelTimer:
+  cdef sel_timer t
+  cdef int _activep
+  cdef readonly double time
+  cdef _timer
+  def __new__(me, double when, timerproc = None, *hunoz, **hukairz):
+    cdef timeval tv
+    _floattotv(&tv, when)
+    sel_addtimer(&_sel, &me.t, &tv, _timerfunc, <void *>me)
+    me._activep = 1
+    me.time = when
+    me._timer = _checkcallable(timerproc, 'timer proc')
+  def __dealloc__(me):
+    if me._activep:
+      sel_rmtimer(&me.t)
+  property activep:
+    def __get__(me):
+      return _tobool(me._activep)
+  property timerproc:
+    def __get__(me):
+      return me._timer
+    def __set__(me, proc):
+      me._timer = _checkcallable(proc, 'timer proc')
+    def __del__(me):
+      me._timer = None
+  def kill(me):
+    if not me._activep:
+      raise ValueError, 'already dead'
+    sel_rmtimer(&me.t)
+    me._dead()
+    return me
+  cdef _dead(me):
+    me._activep = 0
+    me.dead()
+  def dead(me):
+    pass
+  def timer(me, now):
+    return _maybecall(me._timer, ())
+
+cdef void _timerfunc(timeval *now, void *arg):
+  cdef SelTimer st
+  st = <SelTimer>arg
+  st._dead()
+  st.timer(_tvtofloat(now))
+
+#----- That's all, folks ----------------------------------------------------