add support for ZeroMQ output

1 files changed, 78 insertions, 0 deletions

diff --git a/src/dabOutput/dabOutputZMQ.cpp b/src/dabOutput/dabOutputZMQ.cpp
new file mode 100644
index 0000000..271cfa1
--- /dev/null
+++ b/src/dabOutput/dabOutputZMQ.cpp
@@ -0,0 +1,78 @@
+/*
+   Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the Queen in
+   Right of Canada (Communications Research Center Canada)
+
+   Copyright (C) 2013 Matthias P. Braendli
+   http://mpb.li
+
+   ZeroMQ output. see www.zeromq.org for more info
+
+   From the ZeroMQ manpage 'zmq':
+
+       The 0MQ lightweight messaging kernel is a library which extends the standard
+       socket interfaces with features traditionally provided by specialised
+       messaging middleware products. 0MQ sockets provide an abstraction of
+       asynchronous message queues, multiple messaging patterns, message filtering
+       (subscriptions), seamless access to multiple transport protocols and more.
+
+   */
+/*
+   This file is part of CRC-DabMux.
+
+   CRC-DabMux 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 of the
+   License, or (at your option) any later version.
+
+   CRC-DabMux 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 CRC-DabMux.  If not, see <http://www.gnu.org/licenses/>.
+   */
+#include "config.h"
+
+#if defined(HAVE_OUTPUT_ZEROMQ)
+
+#include <stdexcept>
+#include <cstdio>
+#include <cstring>
+#include <signal.h>
+#include <limits.h>
+#include <unistd.h>
+#include <errno.h>
+#include <zmq.hpp>
+#include "dabOutput.h"
+
+using namespace std;
+
+int DabOutputZMQ::Open(const char* endpoint)
+    // the format for endpoint shall be as defined in the zmq_bind manpage
+    // but without specifying the protocol. The protocol has been given in
+    // the constructor
+{
+    // bind to uri
+    string proto_endpoint = zmq_proto_ + "://" + std::string(endpoint);
+    std::cerr << "ZMQ socket " << proto_endpoint << std::endl;
+    zmq_pub_sock_.bind(proto_endpoint.c_str());
+
+    return 0;
+}
+
+
+int DabOutputZMQ::Write(void* buffer, int size)
+{
+    int flags = 0;
+
+    return zmq_send(zmq_pub_sock_, buffer, size, flags);
+}
+
+
+int DabOutputZMQ::Close()
+{
+    return zmq_close(zmq_pub_sock_);
+}
+
+#endif