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Diffstat (limited to 'external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.cpp')
-rw-r--r-- | external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.cpp | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.cpp new file mode 100644 index 00000000..1adca93d --- /dev/null +++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/v2_encoder.cpp @@ -0,0 +1,77 @@ +/* + 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 "v2_protocol.hpp" +#include "v2_encoder.hpp" +#include "likely.hpp" +#include "wire.hpp" + +zmq::v2_encoder_t::v2_encoder_t (size_t bufsize_) : + encoder_base_t <v2_encoder_t> (bufsize_) +{ + // Write 0 bytes to the batch and go to message_ready state. + next_step (NULL, 0, &v2_encoder_t::message_ready, true); +} + +zmq::v2_encoder_t::~v2_encoder_t () +{ +} + +void zmq::v2_encoder_t::message_ready () +{ + // Encode flags. + unsigned char &protocol_flags = tmpbuf [0]; + protocol_flags = 0; + if (in_progress->flags () & msg_t::more) + protocol_flags |= v2_protocol_t::more_flag; + if (in_progress->size () > 255) + protocol_flags |= v2_protocol_t::large_flag; + if (in_progress->flags () & msg_t::command) + protocol_flags |= v2_protocol_t::command_flag; + + // Encode the message length. For messages less then 256 bytes, + // the length is encoded as 8-bit unsigned integer. For larger + // messages, 64-bit unsigned integer in network byte order is used. + const size_t size = in_progress->size (); + if (unlikely (size > 255)) { + put_uint64 (tmpbuf + 1, size); + next_step (tmpbuf, 9, &v2_encoder_t::size_ready, false); + } + else { + tmpbuf [1] = static_cast <uint8_t> (size); + next_step (tmpbuf, 2, &v2_encoder_t::size_ready, false); + } +} + +void zmq::v2_encoder_t::size_ready () +{ + // Write message body into the buffer. + next_step (in_progress->data (), in_progress->size (), + &v2_encoder_t::message_ready, true); +} |