int flux_rpc_get (flux_rpc_t *rpc, uint32_t *nodeid, const char **json_str)
{
int rc = -1;
if (rpc->oneway) {
errno = EINVAL;
goto done;
}
if (!rpc->rx_msg && !(rpc->rx_msg = flux_recv (rpc->h, rpc->m, 0)))
goto done;
flux_msg_destroy (rpc->rx_msg_consumed); /* invalidate last-got payload */
rpc->rx_msg_consumed = rpc->rx_msg;
rpc->rx_msg = NULL;
rpc->rx_count++;
if (nodeid) {
uint32_t matchtag;
if (flux_msg_get_matchtag (rpc->rx_msg_consumed, &matchtag) < 0)
goto done;
*nodeid = lookup_nodeid (rpc, matchtag);
}
if (flux_response_decode (rpc->rx_msg_consumed, NULL, json_str) < 0)
goto done;
rc = 0;
done:
return rc;
}
static int fastpath_response_lookup (struct dispatch *d, const flux_msg_t *msg,
struct flux_msg_handler **hpp)
{
uint32_t tag, group;
if (flux_msg_get_matchtag (msg, &tag) < 0)
return -1;
group = tag>>FLUX_MATCHTAG_GROUP_SHIFT;
if (group > 0)
return fastpath_get (&d->group, group, hpp);
else
return fastpath_get (&d->norm, tag, hpp);
}
int flux_rpc_get_nodeid (flux_rpc_t *rpc, uint32_t *nodeid)
{
int rc = -1;
uint32_t tag;
assert (rpc->magic == RPC_MAGIC);
if (rpc_get (rpc) < 0)
goto done;
if (flux_msg_get_matchtag (rpc->rx_msg, &tag) < 0)
goto done;
if ((tag & FLUX_MATCHTAG_GROUP_MASK) > 0)
*nodeid = tag & ~FLUX_MATCHTAG_GROUP_MASK;
else
*nodeid = rpc->nodeid;
rc = 0;
done:
return rc;
}
