diff options
| author | Tim O'Shea <tim.oshea753@gmail.com> | 2014-12-30 17:48:09 +0100 |
|---|---|---|
| committer | Tim O'Shea <tim.oshea753@gmail.com> | 2014-12-30 17:48:09 +0100 |
| commit | 1ee94434c6d81d04cc1d5435cd5bd8c2a5875f89 (patch) | |
| tree | 0a6349a845ebe7e50c680afee0037dae42971e00 /gr-zeromq/lib/req_msg_source_impl.cc | |
| parent | cd7e604d527f6324138f778dd15253d78df49350 (diff) | |
zmq: building working versions of additional zmq message blocks in place (push/pull + rep/req)
Diffstat (limited to 'gr-zeromq/lib/req_msg_source_impl.cc')
| -rw-r--r-- | gr-zeromq/lib/req_msg_source_impl.cc | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/gr-zeromq/lib/req_msg_source_impl.cc b/gr-zeromq/lib/req_msg_source_impl.cc new file mode 100644 index 0000000000..92e26e919c --- /dev/null +++ b/gr-zeromq/lib/req_msg_source_impl.cc @@ -0,0 +1,121 @@ +/* -*- c++ -*- */ +/* + * Copyright 2013,2014 Free Software Foundation, Inc. + * + * This file is part of GNU Radio. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * This software 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 + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gnuradio/io_signature.h> +#include "req_msg_source_impl.h" +#include "tag_headers.h" + +namespace gr { + namespace zeromq { + + req_msg_source::sptr + req_msg_source::make(char *address, int timeout) + { + return gnuradio::get_initial_sptr + (new req_msg_source_impl(address, timeout)); + } + + req_msg_source_impl::req_msg_source_impl(char *address, int timeout) + : gr::sync_block("req_msg_source", + gr::io_signature::make(0, 0, 0), + gr::io_signature::make(0, 0, 0)), + d_timeout(timeout) + { + int major, minor, patch; + zmq::version (&major, &minor, &patch); + if (major < 3) { + d_timeout = timeout*1000; + } + d_context = new zmq::context_t(1); + d_socket = new zmq::socket_t(*d_context, ZMQ_REQ); + int time = 0; + d_socket->setsockopt(ZMQ_LINGER, &time, sizeof(time)); + d_socket->connect (address); + + message_port_register_out(pmt::mp("out")); + } + + req_msg_source_impl::~req_msg_source_impl() + { + d_socket->close(); + delete d_socket; + delete d_context; + } + + int + req_msg_source_impl::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) + { + return noutput_items; +/* + char *out = (char*)output_items[0]; + + zmq::pollitem_t itemsout[] = { { *d_socket, 0, ZMQ_POLLOUT, 0 } }; + zmq::poll (&itemsout[0], 1, d_timeout); + + // If we got a reply, process + if (itemsout[0].revents & ZMQ_POLLOUT) { + // Request data, FIXME non portable? + zmq::message_t request(sizeof(int)); + memcpy ((void *) request.data (), &noutput_items, sizeof(int)); + d_socket->send(request); + } + + zmq::pollitem_t itemsin[] = { { *d_socket, 0, ZMQ_POLLIN, 0 } }; + zmq::poll (&itemsin[0], 1, d_timeout); + + // If we got a reply, process + if (itemsin[0].revents & ZMQ_POLLIN) { + // Receive data + zmq::message_t reply; + d_socket->recv(&reply); + + // Deserialize header data / tags + std::string buf(static_cast<char*>(reply.data()), reply.size()); + + if(d_pass_tags){ + uint64_t rcv_offset; + std::vector<gr::tag_t> tags; + buf = parse_tag_header(buf, rcv_offset, tags); + for(size_t i=0; i<tags.size(); i++){ + tags[i].offset -= rcv_offset - nitems_written(0); + add_item_tag(0, tags[i]); + } + } + + + // Copy to ouput buffer and return + memcpy(out, (void *)&buf[0], buf.size()); + return buf.size()/(d_itemsize*d_vlen); + } + + return 0; + */ + } + + } /* namespace zeromq */ +} /* namespace gr */ |