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Diffstat (limited to 'external_libs/python/zmq/devices/monitoredqueue.pxd')
| -rw-r--r-- | external_libs/python/zmq/devices/monitoredqueue.pxd | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/external_libs/python/zmq/devices/monitoredqueue.pxd b/external_libs/python/zmq/devices/monitoredqueue.pxd deleted file mode 100644 index 1e26ed86..00000000 --- a/external_libs/python/zmq/devices/monitoredqueue.pxd +++ /dev/null @@ -1,177 +0,0 @@ -"""MonitoredQueue class declarations. - -Authors -------- -* MinRK -* Brian Granger -""" - -# -# Copyright (c) 2010 Min Ragan-Kelley, Brian Granger -# -# This file is part of pyzmq, but is derived and adapted from zmq_queue.cpp -# originally from libzmq-2.1.6, used under LGPLv3 -# -# pyzmq is free software; you can redistribute it and/or modify it under -# the terms of the Lesser GNU General Public License as published by -# the Free Software Foundation; either version 3 of the License, or -# (at your option) any later version. -# -# pyzmq is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# Lesser GNU General Public License for more details. -# -# You should have received a copy of the Lesser GNU General Public License -# along with this program. If not, see <http://www.gnu.org/licenses/>. -# - -#----------------------------------------------------------------------------- -# Imports -#----------------------------------------------------------------------------- - -from libzmq cimport * - -#----------------------------------------------------------------------------- -# MonitoredQueue C functions -#----------------------------------------------------------------------------- - -cdef inline int _relay(void *insocket_, void *outsocket_, void *sidesocket_, - zmq_msg_t msg, zmq_msg_t side_msg, zmq_msg_t id_msg, - bint swap_ids) nogil: - cdef int rc - cdef int64_t flag_2 - cdef int flag_3 - cdef int flags - cdef bint more - cdef size_t flagsz - cdef void * flag_ptr - - if ZMQ_VERSION_MAJOR < 3: - flagsz = sizeof (int64_t) - flag_ptr = &flag_2 - else: - flagsz = sizeof (int) - flag_ptr = &flag_3 - - if swap_ids:# both router, must send second identity first - # recv two ids into msg, id_msg - rc = zmq_msg_recv(&msg, insocket_, 0) - if rc < 0: return rc - - rc = zmq_msg_recv(&id_msg, insocket_, 0) - if rc < 0: return rc - - # send second id (id_msg) first - #!!!! always send a copy before the original !!!! - rc = zmq_msg_copy(&side_msg, &id_msg) - if rc < 0: return rc - rc = zmq_msg_send(&side_msg, outsocket_, ZMQ_SNDMORE) - if rc < 0: return rc - rc = zmq_msg_send(&id_msg, sidesocket_, ZMQ_SNDMORE) - if rc < 0: return rc - # send first id (msg) second - rc = zmq_msg_copy(&side_msg, &msg) - if rc < 0: return rc - rc = zmq_msg_send(&side_msg, outsocket_, ZMQ_SNDMORE) - if rc < 0: return rc - rc = zmq_msg_send(&msg, sidesocket_, ZMQ_SNDMORE) - if rc < 0: return rc - while (True): - rc = zmq_msg_recv(&msg, insocket_, 0) - if rc < 0: return rc - # assert (rc == 0) - rc = zmq_getsockopt (insocket_, ZMQ_RCVMORE, flag_ptr, &flagsz) - if rc < 0: return rc - flags = 0 - if ZMQ_VERSION_MAJOR < 3: - if flag_2: - flags |= ZMQ_SNDMORE - else: - if flag_3: - flags |= ZMQ_SNDMORE - # LABEL has been removed: - # rc = zmq_getsockopt (insocket_, ZMQ_RCVLABEL, flag_ptr, &flagsz) - # if flag_3: - # flags |= ZMQ_SNDLABEL - # assert (rc == 0) - - rc = zmq_msg_copy(&side_msg, &msg) - if rc < 0: return rc - if flags: - rc = zmq_msg_send(&side_msg, outsocket_, flags) - if rc < 0: return rc - # only SNDMORE for side-socket - rc = zmq_msg_send(&msg, sidesocket_, ZMQ_SNDMORE) - if rc < 0: return rc - else: - rc = zmq_msg_send(&side_msg, outsocket_, 0) - if rc < 0: return rc - rc = zmq_msg_send(&msg, sidesocket_, 0) - if rc < 0: return rc - break - return rc - -# the MonitoredQueue C function, adapted from zmq::queue.cpp : -cdef inline int c_monitored_queue (void *insocket_, void *outsocket_, - void *sidesocket_, zmq_msg_t *in_msg_ptr, - zmq_msg_t *out_msg_ptr, int swap_ids) nogil: - """The actual C function for a monitored queue device. - - See ``monitored_queue()`` for details. - """ - - cdef zmq_msg_t msg - cdef int rc = zmq_msg_init (&msg) - cdef zmq_msg_t id_msg - rc = zmq_msg_init (&id_msg) - if rc < 0: return rc - cdef zmq_msg_t side_msg - rc = zmq_msg_init (&side_msg) - if rc < 0: return rc - - cdef zmq_pollitem_t items [2] - items [0].socket = insocket_ - items [0].fd = 0 - items [0].events = ZMQ_POLLIN - items [0].revents = 0 - items [1].socket = outsocket_ - items [1].fd = 0 - items [1].events = ZMQ_POLLIN - items [1].revents = 0 - # I don't think sidesocket should be polled? - # items [2].socket = sidesocket_ - # items [2].fd = 0 - # items [2].events = ZMQ_POLLIN - # items [2].revents = 0 - - while (True): - - # // Wait while there are either requests or replies to process. - rc = zmq_poll (&items [0], 2, -1) - if rc < 0: return rc - # // The algorithm below asumes ratio of request and replies processed - # // under full load to be 1:1. Although processing requests replies - # // first is tempting it is suspectible to DoS attacks (overloading - # // the system with unsolicited replies). - # - # // Process a request. - if (items [0].revents & ZMQ_POLLIN): - # send in_prefix to side socket - rc = zmq_msg_copy(&side_msg, in_msg_ptr) - if rc < 0: return rc - rc = zmq_msg_send(&side_msg, sidesocket_, ZMQ_SNDMORE) - if rc < 0: return rc - # relay the rest of the message - rc = _relay(insocket_, outsocket_, sidesocket_, msg, side_msg, id_msg, swap_ids) - if rc < 0: return rc - if (items [1].revents & ZMQ_POLLIN): - # send out_prefix to side socket - rc = zmq_msg_copy(&side_msg, out_msg_ptr) - if rc < 0: return rc - rc = zmq_msg_send(&side_msg, sidesocket_, ZMQ_SNDMORE) - if rc < 0: return rc - # relay the rest of the message - rc = _relay(outsocket_, insocket_, sidesocket_, msg, side_msg, id_msg, swap_ids) - if rc < 0: return rc - return rc |