void messaging_adapter::on_session_remote_open(proton_event &pe) {
pn_session_t *session = pn_event_session(pe.pn_event());
class session s(make_wrapper(session));
delegate_.on_session_open(s);
if (!is_local_open(pn_session_state(session)) && is_local_unititialised(pn_session_state(session))) {
pn_session_open(session);
}
}
static void pn_handshaker_dispatch(pn_handler_t *handler, pn_event_t *event, pn_event_type_t type) {
switch (type) {
case PN_CONNECTION_REMOTE_OPEN:
{
pn_connection_t *conn = pn_event_connection(event);
if (pn_connection_state(conn) & PN_LOCAL_UNINIT) {
pn_connection_open(conn);
}
}
break;
case PN_SESSION_REMOTE_OPEN:
{
pn_session_t *ssn = pn_event_session(event);
if (pn_session_state(ssn) & PN_LOCAL_UNINIT) {
pn_session_open(ssn);
}
}
break;
case PN_LINK_REMOTE_OPEN:
{
pn_link_t *link = pn_event_link(event);
if (pn_link_state(link) & PN_LOCAL_UNINIT) {
pn_terminus_copy(pn_link_source(link), pn_link_remote_source(link));
pn_terminus_copy(pn_link_target(link), pn_link_remote_target(link));
pn_link_open(link);
}
}
break;
case PN_CONNECTION_REMOTE_CLOSE:
{
pn_connection_t *conn = pn_event_connection(event);
if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) {
pn_connection_close(conn);
}
}
break;
case PN_SESSION_REMOTE_CLOSE:
{
pn_session_t *ssn = pn_event_session(event);
if (!(pn_session_state(ssn) & PN_LOCAL_CLOSED)) {
pn_session_close(ssn);
}
}
break;
case PN_LINK_REMOTE_CLOSE:
{
pn_link_t *link = pn_event_link(event);
if (!(pn_link_state(link) & PN_LOCAL_CLOSED)) {
pn_link_close(link);
}
}
break;
default:
break;
}
}
void messaging_adapter::on_session_remote_open(event &e) {
proton_event *pe = dynamic_cast<proton_event*>(&e);
if (pe) {
messaging_event mevent(messaging_event::SESSION_OPEN, *pe);
on_session_open(mevent);
pn_session_t *session = pn_event_session(pe->pn_event());
if (!is_local_open(pn_session_state(session)) && is_local_unititialised(pn_session_state(session))) {
pn_session_open(session);
}
}
}
void ConnectionContext::close()
{
qpid::sys::ScopedLock<qpid::sys::Monitor> l(lock);
if (state != CONNECTED) return;
if (!(pn_connection_state(connection) & PN_LOCAL_CLOSED)) {
for (SessionMap::iterator i = sessions.begin(); i != sessions.end(); ++i) {
//wait for outstanding sends to settle
while (!i->second->settled()) {
QPID_LOG(debug, "Waiting for sends to settle before closing");
wait();//wait until message has been confirmed
}
if (!(pn_session_state(i->second->session) & PN_LOCAL_CLOSED)) {
pn_session_close(i->second->session);
}
}
pn_connection_close(connection);
wakeupDriver();
//wait for close to be confirmed by peer?
while (!(pn_connection_state(connection) & PN_REMOTE_CLOSED)) {
wait();
}
sessions.clear();
}
transport->close();
while (state != DISCONNECTED) {
lock.wait();
}
}
boost::shared_ptr<SessionContext> ConnectionContext::newSession(bool transactional, const std::string& n)
{
qpid::sys::ScopedLock<qpid::sys::Monitor> l(lock);
if (transactional) throw qpid::messaging::MessagingException("Transactions not yet supported");
std::string name = n.empty() ? qpid::framing::Uuid(true).str() : n;
SessionMap::const_iterator i = sessions.find(name);
if (i == sessions.end()) {
boost::shared_ptr<SessionContext> s(new SessionContext(connection));
s->session = pn_session(connection);
pn_session_open(s->session);
sessions[name] = s;
wakeupDriver();
while (pn_session_state(s->session) & PN_REMOTE_UNINIT) {
wait();
}
return s;
} else {
throw qpid::messaging::KeyError(std::string("Session already exists: ") + name);
}
}
void messaging_adapter::on_session_remote_close(event &e) {
proton_event *pe = dynamic_cast<proton_event*>(&e);
if (pe) {
pn_event_t *cevent = pe->pn_event();
pn_session_t *session = pn_event_session(cevent);
pn_state_t state = pn_session_state(session);
if (pn_condition_is_set(pn_session_remote_condition(session))) {
messaging_event mevent(messaging_event::SESSION_ERROR, *pe);
on_session_error(mevent);
}
else if (is_local_closed(state)) {
messaging_event mevent(messaging_event::SESSION_CLOSED, *pe);
on_session_closed(mevent);
}
else {
messaging_event mevent(messaging_event::SESSION_CLOSING, *pe);
on_session_closing(mevent);
}
pn_session_close(session);
}
}
endpoint::state session::state() const { return pn_session_state(pn_object()); }
int pn_event_handler(void *handler_context, void *conn_context, pn_event_t *event, qd_connection_t *qd_conn)
{
qd_container_t *container = (qd_container_t*) handler_context;
pn_connection_t *conn = qd_connection_pn(qd_conn);
pn_session_t *ssn;
pn_link_t *pn_link;
qd_link_t *qd_link;
pn_delivery_t *delivery;
switch (pn_event_type(event)) {
case PN_CONNECTION_REMOTE_OPEN :
qd_connection_set_user(qd_conn);
if (pn_connection_state(conn) & PN_LOCAL_UNINIT) {
// This Open is an externally initiated connection
// Let policy engine decide
qd_connection_set_event_stall(qd_conn, true);
qd_conn->open_container = (void *)container;
qd_connection_invoke_deferred(qd_conn, qd_policy_amqp_open, qd_conn);
} else {
// This Open is in response to an internally initiated connection
notify_opened(container, qd_conn, conn_context);
}
break;
case PN_CONNECTION_REMOTE_CLOSE :
if (pn_connection_state(conn) == (PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED))
pn_connection_close(conn);
break;
case PN_SESSION_REMOTE_OPEN :
if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) {
ssn = pn_event_session(event);
if (pn_session_state(ssn) & PN_LOCAL_UNINIT) {
if (qd_conn->policy_settings) {
if (!qd_policy_approve_amqp_session(ssn, qd_conn)) {
break;
}
qd_conn->n_sessions++;
}
qd_policy_apply_session_settings(ssn, qd_conn);
pn_session_open(ssn);
}
}
break;
case PN_SESSION_REMOTE_CLOSE :
if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) {
ssn = pn_event_session(event);
if (pn_session_state(ssn) == (PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED)) {
// remote has nuked our session. Check for any links that were
// left open and forcibly detach them, since no detaches will
// arrive on this session.
pn_connection_t *conn = pn_session_connection(ssn);
pn_link_t *pn_link = pn_link_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_ACTIVE);
while (pn_link) {
if (pn_link_session(pn_link) == ssn) {
qd_link_t *qd_link = (qd_link_t*) pn_link_get_context(pn_link);
if (qd_link && qd_link->node) {
if (qd_conn->policy_settings) {
if (qd_link->direction == QD_OUTGOING) {
qd_conn->n_receivers--;
assert(qd_conn->n_receivers >= 0);
} else {
qd_conn->n_senders--;
assert(qd_conn->n_senders >= 0);
}
}
qd_log(container->log_source, QD_LOG_NOTICE,
"Aborting link '%s' due to parent session end",
pn_link_name(pn_link));
qd_link->node->ntype->link_detach_handler(qd_link->node->context,
qd_link, QD_LOST);
}
}
pn_link = pn_link_next(pn_link, PN_LOCAL_ACTIVE | PN_REMOTE_ACTIVE);
}
if (qd_conn->policy_settings) {
qd_conn->n_sessions--;
}
pn_session_close(ssn);
}
}
break;
case PN_LINK_REMOTE_OPEN :
if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) {
pn_link = pn_event_link(event);
if (pn_link_state(pn_link) & PN_LOCAL_UNINIT) {
if (pn_link_is_sender(pn_link)) {
if (qd_conn->policy_settings) {
if (!qd_policy_approve_amqp_receiver_link(pn_link, qd_conn)) {
break;
}
qd_conn->n_receivers++;
}
setup_outgoing_link(container, pn_link);
} else {
if (qd_conn->policy_settings) {
if (!qd_policy_approve_amqp_sender_link(pn_link, qd_conn)) {
break;
}
qd_conn->n_senders++;
}
setup_incoming_link(container, pn_link);
}
} else if (pn_link_state(pn_link) & PN_LOCAL_ACTIVE)
handle_link_open(container, pn_link);
}
break;
case PN_LINK_REMOTE_CLOSE :
case PN_LINK_REMOTE_DETACH :
if (!(pn_connection_state(conn) & PN_LOCAL_CLOSED)) {
pn_link = pn_event_link(event);
qd_link = (qd_link_t*) pn_link_get_context(pn_link);
if (qd_link) {
qd_node_t *node = qd_link->node;
qd_detach_type_t dt = pn_event_type(event) == PN_LINK_REMOTE_CLOSE ? QD_CLOSED : QD_DETACHED;
if (node)
node->ntype->link_detach_handler(node->context, qd_link, dt);
else if (qd_link->pn_link == pn_link) {
pn_link_close(pn_link);
}
if (qd_conn->policy_counted && qd_conn->policy_settings) {
if (pn_link_is_sender(pn_link)) {
qd_conn->n_receivers--;
qd_log(container->log_source, QD_LOG_TRACE,
"Closed receiver link %s. n_receivers: %d",
pn_link_name(pn_link), qd_conn->n_receivers);
assert (qd_conn->n_receivers >= 0);
} else {
qd_conn->n_senders--;
qd_log(container->log_source, QD_LOG_TRACE,
"Closed sender link %s. n_senders: %d",
pn_link_name(pn_link), qd_conn->n_senders);
assert (qd_conn->n_senders >= 0);
}
}
if (qd_link->close_sess_with_link && qd_link->pn_sess &&
pn_link_state(pn_link) == (PN_LOCAL_CLOSED | PN_REMOTE_CLOSED))
pn_session_close(qd_link->pn_sess);
}
}
break;
case PN_LINK_FLOW :
pn_link = pn_event_link(event);
qd_link = (qd_link_t*) pn_link_get_context(pn_link);
if (qd_link && qd_link->node && qd_link->node->ntype->link_flow_handler)
qd_link->node->ntype->link_flow_handler(qd_link->node->context, qd_link);
break;
case PN_DELIVERY :
delivery = pn_event_delivery(event);
if (pn_delivery_readable(delivery))
do_receive(delivery);
if (pn_delivery_updated(delivery)) {
do_updated(delivery);
pn_delivery_clear(delivery);
}
break;
case PN_EVENT_NONE :
case PN_REACTOR_INIT :
case PN_REACTOR_QUIESCED :
case PN_REACTOR_FINAL :
case PN_TIMER_TASK :
case PN_CONNECTION_INIT :
case PN_CONNECTION_BOUND :
case PN_CONNECTION_UNBOUND :
case PN_CONNECTION_LOCAL_OPEN :
case PN_CONNECTION_LOCAL_CLOSE :
case PN_CONNECTION_FINAL :
case PN_SESSION_INIT :
case PN_SESSION_LOCAL_OPEN :
case PN_SESSION_LOCAL_CLOSE :
case PN_SESSION_FINAL :
case PN_LINK_INIT :
case PN_LINK_LOCAL_OPEN :
case PN_LINK_LOCAL_CLOSE :
case PN_LINK_LOCAL_DETACH :
case PN_LINK_FINAL :
case PN_TRANSPORT :
case PN_TRANSPORT_ERROR :
case PN_TRANSPORT_HEAD_CLOSED :
case PN_TRANSPORT_TAIL_CLOSED :
case PN_TRANSPORT_CLOSED :
case PN_TRANSPORT_AUTHENTICATED :
case PN_SELECTABLE_INIT :
case PN_SELECTABLE_UPDATED :
case PN_SELECTABLE_READABLE :
case PN_SELECTABLE_WRITABLE :
case PN_SELECTABLE_ERROR :
case PN_SELECTABLE_EXPIRED :
case PN_SELECTABLE_FINAL :
break;
}
return 1;
}
bool session::closed() const { return ::closed(pn_session_state(pn_object())); }
bool session::active() const { return ::active(pn_session_state(pn_object())); }
bool session::uninitialized() const { return ::uninitialized(pn_session_state(pn_object())); }
