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da31917f4f
Relicense permission collected from all relevant authors as tallied at: https://github.com/rlenferink/libzmq-relicense/blob/master/checklist.md The relicense grants are collected under RELICENSE/ and will be moved to the above repository in a later commit. Fixes https://github.com/zeromq/libzmq/issues/2376
106 lines
2.2 KiB
C++
106 lines
2.2 KiB
C++
/* SPDX-License-Identifier: MPL-2.0 */
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#include "precompiled.hpp"
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#include "macros.hpp"
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#include "pair.hpp"
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#include "err.hpp"
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#include "pipe.hpp"
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#include "msg.hpp"
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zmq::pair_t::pair_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
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socket_base_t (parent_, tid_, sid_), _pipe (NULL)
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{
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options.type = ZMQ_PAIR;
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}
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zmq::pair_t::~pair_t ()
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{
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zmq_assert (!_pipe);
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}
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void zmq::pair_t::xattach_pipe (pipe_t *pipe_,
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bool subscribe_to_all_,
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bool locally_initiated_)
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{
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LIBZMQ_UNUSED (subscribe_to_all_);
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LIBZMQ_UNUSED (locally_initiated_);
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zmq_assert (pipe_ != NULL);
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// ZMQ_PAIR socket can only be connected to a single peer.
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// The socket rejects any further connection requests.
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if (_pipe == NULL)
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_pipe = pipe_;
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else
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pipe_->terminate (false);
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}
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void zmq::pair_t::xpipe_terminated (pipe_t *pipe_)
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{
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if (pipe_ == _pipe) {
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_pipe = NULL;
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}
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}
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void zmq::pair_t::xread_activated (pipe_t *)
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{
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// There's just one pipe. No lists of active and inactive pipes.
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// There's nothing to do here.
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}
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void zmq::pair_t::xwrite_activated (pipe_t *)
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{
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// There's just one pipe. No lists of active and inactive pipes.
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// There's nothing to do here.
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}
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int zmq::pair_t::xsend (msg_t *msg_)
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{
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if (!_pipe || !_pipe->write (msg_)) {
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errno = EAGAIN;
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return -1;
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}
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if (!(msg_->flags () & msg_t::more))
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_pipe->flush ();
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// Detach the original message from the data buffer.
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const int rc = msg_->init ();
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errno_assert (rc == 0);
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return 0;
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}
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int zmq::pair_t::xrecv (msg_t *msg_)
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{
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// Deallocate old content of the message.
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int rc = msg_->close ();
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errno_assert (rc == 0);
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if (!_pipe || !_pipe->read (msg_)) {
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// Initialise the output parameter to be a 0-byte message.
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rc = msg_->init ();
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errno_assert (rc == 0);
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errno = EAGAIN;
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return -1;
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}
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return 0;
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}
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bool zmq::pair_t::xhas_in ()
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{
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if (!_pipe)
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return false;
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return _pipe->check_read ();
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}
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bool zmq::pair_t::xhas_out ()
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{
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if (!_pipe)
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return false;
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return _pipe->check_write ();
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}
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