C++ (Cpp) nn_excl_recv 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: sub.c Project: Amaury/AngstromDB

static int nn_sub_recv (struct nn_sockbase *self, struct nn_msg *msg)
{
    int rc;
    struct nn_sub *sub;

    sub = nn_cont (self, struct nn_sub, sockbase);

    /*  Loop while a matching message is found or when there are no more
        messages to receive. */
    while (1) {
        rc = nn_excl_recv (&sub->excl, msg);
        if (nn_slow (rc == -EAGAIN))
            return -EAGAIN;
        errnum_assert (rc >= 0, -rc);
        rc = nn_trie_match (&sub->trie, nn_chunkref_data (&msg->body),
            nn_chunkref_size (&msg->body));
        if (rc == 0)
            continue;
        if (rc == 1)
            return 0;
        errnum_assert (0, -rc);
    }
}