~mdw / mLib-python / blame
| Commit | Line | Data |
|---|---|---|
| 5b1830f3 MW |
1 | ### -*-pyrex-*- |
| 2 | ### | |
| 3 | ### Watching files for changes | |
| 4 | ### | |
| 5 | ### (c) 2007 Straylight/Edgeware | |
| 6 | ### | |
| ae68e889 | 7 | |
| 5b1830f3 MW |
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. | |
| ae68e889 MW |
25 | |
| 26 | cdef class FWatch: | |
| addc0c37 MW |
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 | """ | |
| ae68e889 | 32 | cdef fwatch fw |
| 965caf5f MW |
33 | cdef fobj |
| 34 | cdef const char *fname | |
| 35 | cdef int fd | |
| 36 | def __cinit__(me): | |
| 37 | me.fname = NULL | |
| 38 | me.fd = -1 | |
| 39 | cdef _setfile(me, object file): | |
| 40 | if TEXT_CHECK(file): | |
| 41 | me.fname = TEXT_PTR(file) | |
| 42 | me.fd = -1 | |
| ae68e889 | 43 | else: |
| 965caf5f MW |
44 | me.fd = _getfd(file) |
| 45 | me.fname = NULL | |
| 46 | me.fobj = file | |
| 47 | def __init__(me, object file): | |
| 48 | me._setfile(file) | |
| 49 | if me.fname: | |
| 50 | fwatch_init(&me.fw, me.fname) | |
| 51 | else: | |
| 52 | fwatch_initfd(&me.fw, me.fd) | |
| 53 | @property | |
| 54 | def file(me): | |
| 55 | return me.fobj | |
| 56 | @file.setter | |
| 57 | def file(me, file): | |
| 58 | me._setfile(file) | |
| ae68e889 | 59 | def update(me): |
| addc0c37 | 60 | """FW.update() -> RC: nonzero if the file has changed state""" |
| d8d81d1b | 61 | cdef int rc |
| 965caf5f MW |
62 | if me.fname: |
| 63 | return fwatch_update(&me.fw, me.fname) | |
| ae68e889 | 64 | else: |
| 965caf5f | 65 | return fwatch_updatefd(&me.fw, me.fd) |
| ae68e889 | 66 | |
| 5b1830f3 | 67 | ###----- That's all, folks -------------------------------------------------- |