| 1 | ### -*-pyrex-*- |
| 2 | ### |
| 3 | ### Watching files for changes |
| 4 | ### |
| 5 | ### (c) 2007 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 class FWatch: |
| 27 | """ |
| 28 | FWatch(FILE): watch FILE for changes |
| 29 | |
| 30 | FILE may be a string, file descriptor, or an object with a `fileno' method. |
| 31 | """ |
| 32 | cdef fwatch fw |
| 33 | cdef public file |
| 34 | def __cinit__(me, file): |
| 35 | me._init(file) |
| 36 | def __init__(me, file): |
| 37 | me._init(file) |
| 38 | cdef _init(me, file): |
| 39 | if isinstance(file, str): |
| 40 | fwatch_init(&me.fw, file) |
| 41 | else: |
| 42 | fwatch_initfd(&me.fw, _getfd(file)) |
| 43 | me.file = file |
| 44 | def update(me): |
| 45 | """FW.update() -> RC: nonzero if the file has changed state""" |
| 46 | cdef int rc |
| 47 | if isinstance(me.file, str): |
| 48 | rc = fwatch_update(&me.fw, me.file) |
| 49 | else: |
| 50 | rc = fwatch_updatefd(&me.fw, _getfd(me.file)) |
| 51 | return rc |
| 52 | |
| 53 | ###----- That's all, folks -------------------------------------------------- |