diff options
Diffstat (limited to 'external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.cpp')
-rw-r--r-- | external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.cpp new file mode 100644 index 00000000..831230ad --- /dev/null +++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/sub.cpp @@ -0,0 +1,90 @@ +/* + Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file + + This file is part of libzmq, the ZeroMQ core engine in C++. + + libzmq is free software; you can redistribute it and/or modify it under + the terms of the GNU Lesser General Public License (LGPL) as published + by the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + As a special exception, the Contributors give you permission to link + this library with independent modules to produce an executable, + regardless of the license terms of these independent modules, and to + copy and distribute the resulting executable under terms of your choice, + provided that you also meet, for each linked independent module, the + terms and conditions of the license of that module. An independent + module is a module which is not derived from or based on this library. + If you modify this library, you must extend this exception to your + version of the library. + + libzmq 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 Lesser General Public + License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "sub.hpp" +#include "msg.hpp" + +zmq::sub_t::sub_t (class ctx_t *parent_, uint32_t tid_, int sid_) : + xsub_t (parent_, tid_, sid_) +{ + options.type = ZMQ_SUB; + + // Switch filtering messages on (as opposed to XSUB which where the + // filtering is off). + options.filter = true; +} + +zmq::sub_t::~sub_t () +{ +} + +int zmq::sub_t::xsetsockopt (int option_, const void *optval_, + size_t optvallen_) +{ + if (option_ != ZMQ_SUBSCRIBE && option_ != ZMQ_UNSUBSCRIBE) { + errno = EINVAL; + return -1; + } + + // Create the subscription message. + msg_t msg; + int rc = msg.init_size (optvallen_ + 1); + errno_assert (rc == 0); + unsigned char *data = (unsigned char*) msg.data (); + if (option_ == ZMQ_SUBSCRIBE) + *data = 1; + else + if (option_ == ZMQ_UNSUBSCRIBE) + *data = 0; + memcpy (data + 1, optval_, optvallen_); + + // Pass it further on in the stack. + int err = 0; + rc = xsub_t::xsend (&msg); + if (rc != 0) + err = errno; + int rc2 = msg.close (); + errno_assert (rc2 == 0); + if (rc != 0) + errno = err; + return rc; +} + +int zmq::sub_t::xsend (msg_t *) +{ + // Override the XSUB's send. + errno = ENOTSUP; + return -1; +} + +bool zmq::sub_t::xhas_out () +{ + // Override the XSUB's send. + return false; +} |