diff options
author | Martin Lucina <martin@lucina.net> | 2012-01-23 08:53:19 +0100 |
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committer | Martin Lucina <martin@lucina.net> | 2012-01-23 08:53:19 +0100 |
commit | a15854bd92db69fcd0b4444fe1b8fe3610a7acf6 (patch) | |
tree | 1214b945d0f0033ff318de367c70525ea141ef56 /devices/zmq_forwarder/zmq_forwarder.cpp |
Imported Upstream version 2.0.7.dfsgupstream/2.0.7.dfsg
Diffstat (limited to 'devices/zmq_forwarder/zmq_forwarder.cpp')
-rw-r--r-- | devices/zmq_forwarder/zmq_forwarder.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/devices/zmq_forwarder/zmq_forwarder.cpp b/devices/zmq_forwarder/zmq_forwarder.cpp new file mode 100644 index 0000000..96c9ae5 --- /dev/null +++ b/devices/zmq_forwarder/zmq_forwarder.cpp @@ -0,0 +1,119 @@ +/* + Copyright (c) 2007-2010 iMatix Corporation + + This file is part of 0MQ. + + 0MQ 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. + + 0MQ 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/>. +*/ + +#include "../../include/zmq.hpp" +#include "../../foreign/xmlParser/xmlParser.cpp" + +int main (int argc, char *argv []) +{ + if (argc != 2) { + fprintf (stderr, "usage: zmq_forwarder <config-file>\n"); + return 1; + } + + XMLNode root = XMLNode::parseFile (argv [1]); + if (root.isEmpty ()) { + fprintf (stderr, "configuration file not found or not an XML file\n"); + return 1; + } + + if (strcmp (root.getName (), "forwarder") != 0) { + fprintf (stderr, "root element in the configuration file should be " + "named 'forwarder'\n"); + return 1; + } + + XMLNode in_node = root.getChildNode ("in"); + if (in_node.isEmpty ()) { + fprintf (stderr, "'in' node is missing in the configuration file\n"); + return 1; + } + + XMLNode out_node = root.getChildNode ("out"); + if (out_node.isEmpty ()) { + fprintf (stderr, "'out' node is missing in the configuration file\n"); + return 1; + } + + // TODO: make the number of I/O threads configurable. + zmq::context_t ctx (1); + zmq::socket_t in_socket (ctx, ZMQ_SUB); + in_socket.setsockopt (ZMQ_SUBSCRIBE, "", 0); + zmq::socket_t out_socket (ctx, ZMQ_PUB); + + int n = 0; + while (true) { + XMLNode bind = in_node.getChildNode ("bind", n); + if (bind.isEmpty ()) + break; + const char *addr = bind.getAttribute ("addr"); + if (!addr) { + fprintf (stderr, "'bind' node is missing 'addr' attribute\n"); + return 1; + } + in_socket.bind (addr); + n++; + } + + n = 0; + while (true) { + XMLNode connect = in_node.getChildNode ("connect", n); + if (connect.isEmpty ()) + break; + const char *addr = connect.getAttribute ("addr"); + if (!addr) { + fprintf (stderr, "'connect' node is missing 'addr' attribute\n"); + return 1; + } + in_socket.connect (addr); + n++; + } + + n = 0; + while (true) { + XMLNode bind = out_node.getChildNode ("bind", n); + if (bind.isEmpty ()) + break; + const char *addr = bind.getAttribute ("addr"); + if (!addr) { + fprintf (stderr, "'bind' node is missing 'addr' attribute\n"); + return 1; + } + out_socket.bind (addr); + n++; + } + + n = 0; + while (true) { + XMLNode connect = out_node.getChildNode ("connect", n); + if (connect.isEmpty ()) + break; + const char *addr = connect.getAttribute ("addr"); + if (!addr) { + fprintf (stderr, "'connect' node is missing 'addr' attribute\n"); + return 1; + } + out_socket.connect (addr); + n++; + } + + zmq::device (ZMQ_FORWARDER, in_socket, out_socket); + + return 0; +} |