| 1 | # -*-pyrex-*- |
| 2 | # |
| 3 | # $Id$ |
| 4 | # |
| 5 | # Timer selectors |
| 6 | # |
| 7 | # (c) 2005 Straylight/Edgeware |
| 8 | # |
| 9 | |
| 10 | #----- Licensing notice ----------------------------------------------------- |
| 11 | # |
| 12 | # This file is part of the Python interface to mLib. |
| 13 | # |
| 14 | # mLib/Python is free software; you can redistribute it and/or modify |
| 15 | # it under the terms of the GNU General Public License as published by |
| 16 | # the Free Software Foundation; either version 2 of the License, or |
| 17 | # (at your option) any later version. |
| 18 | # |
| 19 | # mLib/Python is distributed in the hope that it will be useful, |
| 20 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | # GNU General Public License for more details. |
| 23 | # |
| 24 | # You should have received a copy of the GNU General Public License |
| 25 | # along with mLib/Python; if not, write to the Free Software Foundation, |
| 26 | # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | |
| 28 | cdef double _tvtofloat(timeval *tv): |
| 29 | return tv.tv_sec + (tv.tv_usec / 1000000) |
| 30 | cdef void _floattotv(timeval *tv, double t): |
| 31 | cdef double s, us |
| 32 | us = modf(t, &s) |
| 33 | tv.tv_sec = s |
| 34 | tv.tv_usec = us * 1000000 |
| 35 | |
| 36 | cdef class SelTimer: |
| 37 | cdef sel_timer t |
| 38 | cdef int _activep |
| 39 | cdef readonly double time |
| 40 | cdef _timer |
| 41 | def __new__(me, double when, timerproc = None, *hunoz, **hukairz): |
| 42 | cdef timeval tv |
| 43 | _floattotv(&tv, when) |
| 44 | sel_addtimer(&_sel, &me.t, &tv, _timerfunc, <void *>me) |
| 45 | me._activep = 1 |
| 46 | me.time = when |
| 47 | me._timer = _checkcallable(timerproc, 'timer proc') |
| 48 | def __dealloc__(me): |
| 49 | if me._activep: |
| 50 | sel_rmtimer(&me.t) |
| 51 | property activep: |
| 52 | def __get__(me): |
| 53 | return _tobool(me._activep) |
| 54 | property timerproc: |
| 55 | def __get__(me): |
| 56 | return me._timer |
| 57 | def __set__(me, proc): |
| 58 | me._timer = _checkcallable(proc, 'timer proc') |
| 59 | def __del__(me): |
| 60 | me._timer = None |
| 61 | def kill(me): |
| 62 | if not me._activep: |
| 63 | raise ValueError, 'already dead' |
| 64 | sel_rmtimer(&me.t) |
| 65 | me._dead() |
| 66 | return me |
| 67 | cdef _dead(me): |
| 68 | me._activep = 0 |
| 69 | me.dead() |
| 70 | def dead(me): |
| 71 | pass |
| 72 | def timer(me, now): |
| 73 | return _maybecall(me._timer, ()) |
| 74 | |
| 75 | cdef void _timerfunc2(timeval *now, void *arg): |
| 76 | cdef SelTimer st |
| 77 | st = <SelTimer>arg |
| 78 | st._dead() |
| 79 | st.timer(_tvtofloat(now)) |
| 80 | cdef void _timerfunc(timeval *now, void *arg): |
| 81 | PyEval_AcquireLock() |
| 82 | _timerfunc2(now, arg) |
| 83 | PyEval_ReleaseLock() |
| 84 | |
| 85 | #----- That's all, folks ---------------------------------------------------- |