C++ (Cpp) nn_chunkref_trim Examples

Example #1

File: xrespondent.c Project: javarange/nanomsg

int nn_xrespondent_recv (struct nn_sockbase *self, struct nn_msg *msg)
{
    int rc;
    struct nn_xrespondent *xrespondent;

    xrespondent = nn_cont (self, struct nn_xrespondent, sockbase);

    /*  Get the survey. */
    rc = nn_excl_recv (&xrespondent->excl, msg);
    if (rc == -EAGAIN)
        return -EAGAIN;
    errnum_assert (rc >= 0, -rc);

    /*  Split the survey ID from the body, if needed. */
    if (!(rc & NN_PIPE_PARSED)) {
        if (nn_slow (nn_chunkref_size (&msg->body) < sizeof (uint32_t))) {
            nn_msg_term (msg);
            return -EAGAIN;
        }
        nn_chunkref_term (&msg->hdr);
        nn_chunkref_init (&msg->hdr, sizeof (uint32_t));
        memcpy (nn_chunkref_data (&msg->hdr), nn_chunkref_data (&msg->body),
            sizeof (uint32_t));
        nn_chunkref_trim (&msg->body, sizeof (uint32_t));
    }

    return 0;
}

Example #2

File: xsurveyor.c Project: javarange/nanomsg

int nn_xsurveyor_recv (struct nn_sockbase *self, struct nn_msg *msg)
{
    int rc;
    struct nn_xsurveyor *xsurveyor;

    xsurveyor = nn_cont (self, struct nn_xsurveyor, sockbase);

    rc = nn_fq_recv (&xsurveyor->inpipes, msg, NULL);
    if (nn_slow (rc < 0))
        return rc;

    /*  Split the header from the body, if needed. */
    if (!(rc & NN_PIPE_PARSED)) {
        if (nn_slow (nn_chunkref_size (&msg->body) < sizeof (uint32_t))) {
            nn_msg_term (msg);
            return -EAGAIN;
        }
        nn_assert (nn_chunkref_size (&msg->hdr) == 0);
        nn_chunkref_term (&msg->hdr);
        nn_chunkref_init (&msg->hdr, sizeof (uint32_t));
        memcpy (nn_chunkref_data (&msg->hdr), nn_chunkref_data (&msg->body),
           sizeof (uint32_t));
        nn_chunkref_trim (&msg->body, sizeof (uint32_t));
    }

    return 0;
}

Example #3

File: xreq.c Project: ryanbaylorkillea/nanomsg

int nn_xreq_recv (struct nn_sockbase *self, struct nn_msg *msg)
{
    int rc;

    rc = nn_fq_recv (&nn_cont (self, struct nn_xreq, sockbase)->fq, msg, NULL);
    if (rc == -EAGAIN)
        return -EAGAIN;
    errnum_assert (rc >= 0, -rc);

    if (!(rc & NN_PIPE_PARSED)) {

        /*  Ignore malformed replies. */
        if (nn_slow (nn_chunkref_size (&msg->body) < sizeof (uint32_t))) {
            nn_msg_term (msg);
            return -EAGAIN;
        }

        /*  Split the message into the header and the body. */
        nn_assert (nn_chunkref_size (&msg->sphdr) == 0);
        nn_chunkref_term (&msg->sphdr);
        nn_chunkref_init (&msg->sphdr, sizeof (uint32_t));
        memcpy (nn_chunkref_data (&msg->sphdr), nn_chunkref_data (&msg->body),
            sizeof (uint32_t));
        nn_chunkref_trim (&msg->body, sizeof (uint32_t));
    }

    return 0;
}