libzmq/src/gather.cpp

/* SPDX-License-Identifier: MPL-2.0 */

#include "precompiled.hpp"
#include "macros.hpp"
#include "gather.hpp"
#include "err.hpp"
#include "msg.hpp"
#include "pipe.hpp"

zmq::gather_t::gather_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
    socket_base_t (parent_, tid_, sid_, true)
{
    options.type = ZMQ_GATHER;
}

zmq::gather_t::~gather_t ()
{
}

void zmq::gather_t::xattach_pipe (pipe_t *pipe_,
                                  bool subscribe_to_all_,
                                  bool locally_initiated_)
{
    LIBZMQ_UNUSED (subscribe_to_all_);
    LIBZMQ_UNUSED (locally_initiated_);

    zmq_assert (pipe_);
    _fq.attach (pipe_);
}

void zmq::gather_t::xread_activated (pipe_t *pipe_)
{
    _fq.activated (pipe_);
}

void zmq::gather_t::xpipe_terminated (pipe_t *pipe_)
{
    _fq.pipe_terminated (pipe_);
}

int zmq::gather_t::xrecv (msg_t *msg_)
{
    int rc = _fq.recvpipe (msg_, NULL);

    // Drop any messages with more flag
    while (rc == 0 && msg_->flags () & msg_t::more) {
        // drop all frames of the current multi-frame message
        rc = _fq.recvpipe (msg_, NULL);

        while (rc == 0 && msg_->flags () & msg_t::more)
            rc = _fq.recvpipe (msg_, NULL);

        // get the new message
        if (rc == 0)
            rc = _fq.recvpipe (msg_, NULL);
    }

    return rc;
}

bool zmq::gather_t::xhas_in ()
{
    return _fq.has_in ();
}