X-Git-Url: https://git.distorted.org.uk/~mdw/mLib-python/blobdiff_plain/704500e11c6a7e240acc047607d34bc6db520f15..HEAD:/pkbuf.pyx diff --git a/pkbuf.pyx b/pkbuf.pyx index 2544aaa..fe296f3 100644 --- a/pkbuf.pyx +++ b/pkbuf.pyx @@ -24,6 +24,11 @@ ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. cdef class PacketBuffer: + """ + PacketBuffer([packetproc = None], [eofproc = None]) + + Split an incoming stream into packets. + """ cdef pkbuf pk cdef _packet cdef _eof @@ -34,9 +39,11 @@ cdef class PacketBuffer: def __dealloc__(me): pkbuf_destroy(&me.pk) property activep: + """PK.activep -> BOOL: is the buffer still active?""" def __get__(me): return _tobool(me.pk.f & PKBUF_ENABLE) property want: + """PK.want -> INT: size of next packet to return""" def __get__(me): return me.pk.want def __set__(me, want): @@ -44,6 +51,7 @@ cdef class PacketBuffer: raise TypeError, 'want must be positive' pkbuf_want(&me.pk, pk) property packetproc: + """PK.packetproc -> FUNC: call FUNC(PACKET) on each packet""" def __get__(me): return me._packet def __set__(me, proc): @@ -51,6 +59,7 @@ cdef class PacketBuffer: def __del__(me): me._line = None property eofproc: + """PK.eofproc -> FUNC: call FUNC() at end-of-file""" def __get__(me): return me._eof def __set__(me, proc): @@ -58,27 +67,32 @@ cdef class PacketBuffer: def __del__(me): me._eof = None def enable(me): + """PK.enable(): enable the buffer, allowing packets to be emitted""" if me.pk.f & PKBUF_ENABLE: raise ValueError, 'already enabled' me.pk.f = me.pk.f | PKBUF_ENABLE me.enabled() return me def disable(me): + """PK.disable(): disable the buffer, suspending packet emission""" if not (me.pk.f & PKBUF_ENABLE): raise ValueError, 'already disabled' me.pk.f = me.pk.f & ~PKBUF_ENABLE me.disabled() return me def close(me): + """PK.close(): report the end of the input stream""" if not (me.pk.f & PKBUF_ENABLE): raise ValueError, 'buffer disabled' pkbuf_close(&me.pk) return me property free: + """PK.free -> INT: amount of space remaining in buffer""" def __get__(me): cdef unsigned char *p return pkbuf_free(&me.pk, &p) def flush(me, str): + """PK.flush(STR) -> insert STR into the buffer and emit packets""" cdef Py_ssize_t len cdef unsigned char *p cdef unsigned char *q @@ -96,12 +110,16 @@ cdef class PacketBuffer: pkbuf_flush(&me.pk, q, n) return PyString_FromStringAndSize(p, len) def enabled(me): + """PK.enabled(): called when buffer is enabled""" pass def disabled(me): + """PK.disabled(): called when buffer is disabled""" pass def packet(me, pk): + """PK.packet(PACKET): called for each completed packet""" return _maybecall(me._packet, (pk,)) def eof(me): + """PK.eof(): called at end-of-file""" return _maybecall(me._eof, ()) cdef void _pkfunc(unsigned char *p, size_t n, pkbuf *pk,