3 ### Selecting packet-buffer
5 ### (c) 2005 Straylight/Edgeware
8 ###----- Licensing notice ---------------------------------------------------
10 ### This file is part of the Python interface to mLib.
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.
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19 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ### GNU General Public License for more details.
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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.
26 cdef class SelPacketBuffer:
30 def __cinit__(me, fd, packetproc = None, eofproc = None, *hunoz, **hukairz):
31 selpk_init(&me.p, &_sel, _getfd(fd), _selpkfunc, <void *>me)
33 me._packet = _checkcallable(packetproc, 'packet proc')
34 me._eof = _checkcallable(eofproc, 'eof proc')
39 return _to_bool(me.p.pk.f & PKBUF_ENABLE)
48 raise TypeError, 'size must be positive'
53 def __set__(me, proc):
54 me._line = _checkcallable(proc, 'line proc')
60 def __set__(me, proc):
61 me._eof = _checkcallable(proc, 'eof proc')
65 if me.p.pk.f & PKBUF_ENABLE:
66 raise ValueError, 'already enabled'
71 if not (me.p.pk.f & PKBUF_ENABLE):
72 raise ValueError, 'already disabled'
81 return _maybecall(me._packet, (pk,))
83 return _maybecall(me._eof, ())
85 cdef void _selpkfunc(unsigned char *p, size_t n, pkbuf *pk,
86 size_t *keep, void *arg):
87 cdef SelPacketBuffer pb
90 pb = <SelPacketBuffer>arg
94 r = pb.packet(PyString_FromStringAndSize(<char *>p, n))
96 PyObject_AsReadBuffer(r, &rp, &rn)
98 raise ValueError, 'remaining buffer too large'
100 memcpy(p + n - rn, rp, rn)
103 ###----- That's all, folks --------------------------------------------------