void
user_args::reply (void *res)
{
//marshall result
xdrproc_t inproc = prog->tbl[procno].xdr_res;
xdrsuio x (XDR_ENCODE);
if ((!inproc) || (!inproc (x.xdrp (), res)))
fatal << "couldn't marshall result\n";
int res_len = x.uio ()->resid ();
track_reply (*prog, procno, res_len);
//stuff into a transport wrapper
dorpc_res *rpc_res = New dorpc_res (DORPC_OK);
me_->fill_node (rpc_res->resok->src);
rpc_res->resok->send_time_echo = send_time;
rpc_res->resok->results.setsize (res_len);
if (res_len > 0)
x.uio ()->copyout (rpc_res->resok->results.base ());
assert (rpc_res->status == DORPC_OK);
u_int64_t diff = getusec (true) - init_time;
track_proctime (*prog, procno, diff);
//reply
sbp->reply (rpc_res);
delete rpc_res;
delete this;
}
ptr<dorpc_arg> vnode_impl::marshal_doRPC (ref<location> l,
const rpc_program &prog, int procno, ptr<void> in)
{
//form the transport RPC
ptr<dorpc_arg> arg = New refcounted<dorpc_arg> ();
//header
l->fill_node (arg->dest);
me_->fill_node (arg->src);
arg->progno = prog.progno;
arg->procno = procno;
//marshall the args ourself
xdrproc_t inproc = prog.tbl[procno].xdr_arg;
xdrsuio x (XDR_ENCODE);
if ((!inproc) || (!inproc (x.xdrp (), in))) {
fatal << "failed to marshall args\n";
return NULL;
} else {
int args_len = x.uio ()->resid ();
arg->args.setsize (args_len);
if (args_len > 0)
x.uio ()->copyout (arg->args.base ());
}
return arg;
}
void
doRPC (const chord_node &n, int procno, const void *in, void *out, aclnt_coords_cb cb)
{
ptr<aclnt> c = get_aclnt (n.r.hostname, n.r.port);
if (c == NULL)
fatal << "doRPC: couldn't aclnt::alloc\n";
//form the transport RPC
ptr<dorpc_arg> arg = New refcounted<dorpc_arg> ();
//header
struct sockaddr_in saddr;
bzero(&saddr, sizeof (sockaddr_in));
saddr.sin_family = AF_INET;
inet_aton (n.r.hostname.cstr (), &saddr.sin_addr);
arg->dest.machine_order_ipv4_addr = ntohl (saddr.sin_addr.s_addr);
arg->dest.machine_order_port_vnnum = (n.r.port << 16) | n.vnode_num;
//leave coords as random.
bzero (&arg->src, sizeof (arg->src));
arg->progno = chord_program_1.progno;
arg->procno = procno;
//marshall the args ourself
xdrproc_t inproc = chord_program_1.tbl[procno].xdr_arg;
xdrsuio x (XDR_ENCODE);
if ((!inproc) || (!inproc (x.xdrp (), (void *)in))) {
fatal << "failed to marshall args\n";
} else {
int args_len = x.uio ()->resid ();
arg->args.setsize (args_len);
void *marshalled_args = suio_flatten (x.uio ());
memcpy (arg->args.base (), marshalled_args, args_len);
free (marshalled_args);
dorpc_res *res = New dorpc_res (DORPC_OK);
c->timedcall (TIMEOUT, TRANSPORTPROC_DORPC,
arg, res, wrap (&doRPCcb, n.x, procno, res, out, cb));
}
}
