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5b1830f3 MW |
1 | ### -*-pyrex-*- |
2 | ### | |
3 | ### Selecting line-buffers | |
4 | ### | |
5 | ### (c) 2005 Straylight/Edgeware | |
6 | ### | |
579d0169 | 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. | |
579d0169 | 25 | |
26 | cdef class SelLineBuffer: | |
27 | cdef selbuf b | |
28 | cdef _line | |
29 | cdef _eof | |
376ad06d | 30 | def __cinit__(me, fd, lineproc = None, eofproc = None, *hunoz, **hukairz): |
579d0169 | 31 | selbuf_init(&me.b, &_sel, _getfd(fd), _selbfunc, <void *>me) |
32 | selbuf_disable(&me.b) | |
33 | me._line = _checkcallable(lineproc, 'line proc') | |
34 | me._eof = _checkcallable(eofproc, 'eof proc') | |
35 | def __dealloc__(me): | |
36 | selbuf_destroy(&me.b) | |
37 | property activep: | |
38 | def __get__(me): | |
39 | return _tobool(me.b.b.f & LBUF_ENABLE) | |
40 | property fd: | |
41 | def __get__(me): | |
42 | return me.b.reader.fd | |
43 | property delim: | |
44 | def __get__(me): | |
45 | if me.b.b.delim == _LBUF_CRLF or me.b.b.delim == _LBUF_STRICTCRLF: | |
46 | return me.b.b.delim | |
47 | else: | |
48 | return chr(me.b.b.delim) | |
49 | def __set__(me, d): | |
50 | if d == _LBUF_CRLF or d == _LBUF_STRICTCRLF: | |
51 | me.b.b.delim = d | |
52 | else: | |
53 | me.b.b.delim = ord(d) | |
54 | property size: | |
55 | def __get__(me): | |
56 | return me.b.b.sz | |
57 | def __set__(me, sz): | |
58 | if sz <= 0: | |
59 | raise TypeError, 'size must be positive' | |
60 | selbuf_setsize(&me.b, sz) | |
61 | property lineproc: | |
62 | def __get__(me): | |
63 | return me._line | |
64 | def __set__(me, proc): | |
65 | me._line = _checkcallable(proc, 'line proc') | |
66 | def __del__(me): | |
67 | me._line = None | |
68 | property eofproc: | |
69 | def __get__(me): | |
70 | return me._eof | |
71 | def __set__(me, proc): | |
72 | me._eof = _checkcallable(proc, 'eof proc') | |
73 | def __del__(me): | |
74 | me._eof = None | |
75 | def enable(me): | |
76 | if me.b.b.f & LBUF_ENABLE: | |
77 | raise ValueError, 'already enabled' | |
78 | selbuf_enable(&me.b) | |
79 | me.enabled() | |
80 | return me | |
81 | def disable(me): | |
82 | if not (me.b.b.f & LBUF_ENABLE): | |
83 | raise ValueError, 'already disabled' | |
84 | selbuf_disable(&me.b) | |
85 | me.disabled() | |
86 | return me | |
87 | def enabled(me): | |
88 | pass | |
89 | def disabled(me): | |
90 | pass | |
91 | def line(me, line): | |
92 | return _maybecall(me._line, (line,)) | |
93 | def eof(me): | |
94 | return _maybecall(me._eof, ()) | |
95 | ||
b51b6cf0 | 96 | cdef void _selbfunc(char *s, size_t n, void *arg): |
579d0169 | 97 | cdef SelLineBuffer sb |
98 | sb = <SelLineBuffer>arg | |
99 | if s is NULL: | |
100 | sb.eof() | |
101 | else: | |
102 | sb.line(PyString_FromStringAndSize(s, n)) | |
103 | ||
5b1830f3 | 104 | ###----- That's all, folks -------------------------------------------------- |