bool pn_messenger_rcvd(pn_messenger_t *messenger)
{
for (int i = 0; i < messenger->size; i++) {
pn_connector_t *ctor = messenger->connectors[i];
pn_connection_t *conn = pn_connector_connection(ctor);
pn_delivery_t *d = pn_work_head(conn);
while (d) {
if (pn_readable(d)) {
return true;
}
d = pn_work_next(d);
}
}
return false;
}
int pn_messenger_get(pn_messenger_t *messenger, pn_message_t *msg)
{
if (!messenger) return PN_ARG_ERR;
for (int i = 0; i < messenger->size; i++) {
pn_connector_t *ctor = messenger->connectors[i];
pn_connection_t *conn = pn_connector_connection(ctor);
pn_delivery_t *d = pn_work_head(conn);
while (d) {
if (pn_readable(d)) {
// XXX: buf size, eof, etc
char buf[1024];
pn_link_t *l = pn_link(d);
ssize_t n = pn_recv(l, buf, 1024);
pn_settle(d);
if (n < 0) return n;
if (msg) {
int err = pn_message_decode(msg, buf, n);
if (err) {
return pn_error_format(messenger->error, err, "error decoding message: %s",
pn_message_error(msg));
} else {
return 0;
}
} else {
return 0;
}
}
d = pn_work_next(d);
}
}
// XXX: need to drain credit before returning EOS
return PN_EOS;
}
void Connection::process()
{
QPID_LOG(trace, id << " process()");
if ((pn_connection_state(connection) & REQUIRES_OPEN) == REQUIRES_OPEN) {
QPID_LOG_CAT(debug, model, id << " connection opened");
pn_connection_set_container(connection, broker.getFederationTag().c_str());
pn_connection_open(connection);
}
for (pn_session_t* s = pn_session_head(connection, REQUIRES_OPEN); s; s = pn_session_next(s, REQUIRES_OPEN)) {
QPID_LOG_CAT(debug, model, id << " session begun");
pn_session_open(s);
boost::shared_ptr<Session> ssn(new Session(s, broker, *this, out));
sessions[s] = ssn;
}
for (pn_link_t* l = pn_link_head(connection, REQUIRES_OPEN); l; l = pn_link_next(l, REQUIRES_OPEN)) {
pn_link_open(l);
Sessions::iterator session = sessions.find(pn_link_session(l));
if (session == sessions.end()) {
QPID_LOG(error, id << " Link attached on unknown session!");
} else {
try {
session->second->attach(l);
QPID_LOG_CAT(debug, protocol, id << " link " << l << " attached on " << pn_link_session(l));
} catch (const std::exception& e) {
QPID_LOG_CAT(error, protocol, "Error on attach: " << e.what());
//TODO: set error details on detach when that is exposed via engine API
pn_link_close(l);
}
}
}
//handle deliveries
for (pn_delivery_t* delivery = pn_work_head(connection); delivery; delivery = pn_work_next(delivery)) {
pn_link_t* link = pn_delivery_link(delivery);
if (pn_link_is_receiver(link)) {
Sessions::iterator i = sessions.find(pn_link_session(link));
if (i != sessions.end()) {
i->second->readable(link, delivery);
} else {
pn_delivery_update(delivery, PN_REJECTED);
}
} else { //i.e. SENDER
Sessions::iterator i = sessions.find(pn_link_session(link));
if (i != sessions.end()) {
QPID_LOG(trace, id << " handling outgoing delivery for " << link << " on session " << pn_link_session(link));
i->second->writable(link, delivery);
} else {
QPID_LOG(error, id << " Got delivery for non-existent session: " << pn_link_session(link) << ", link: " << link);
}
}
}
for (pn_link_t* l = pn_link_head(connection, REQUIRES_CLOSE); l; l = pn_link_next(l, REQUIRES_CLOSE)) {
pn_link_close(l);
Sessions::iterator session = sessions.find(pn_link_session(l));
if (session == sessions.end()) {
QPID_LOG(error, id << " peer attempted to detach link on unknown session!");
} else {
session->second->detach(l);
QPID_LOG_CAT(debug, model, id << " link detached");
}
}
for (pn_session_t* s = pn_session_head(connection, REQUIRES_CLOSE); s; s = pn_session_next(s, REQUIRES_CLOSE)) {
pn_session_close(s);
Sessions::iterator i = sessions.find(s);
if (i != sessions.end()) {
i->second->close();
sessions.erase(i);
QPID_LOG_CAT(debug, model, id << " session ended");
} else {
QPID_LOG(error, id << " peer attempted to close unrecognised session");
}
}
if ((pn_connection_state(connection) & REQUIRES_CLOSE) == REQUIRES_CLOSE) {
QPID_LOG_CAT(debug, model, id << " connection closed");
pn_connection_close(connection);
}
}
void client_callback(pn_connector_t *ctor)
{
struct client_context *ctx = pn_connector_context(ctor);
if (pn_connector_closed(ctor)) {
ctx->done = true;
}
pn_sasl_t *sasl = pn_connector_sasl(ctor);
while (pn_sasl_state(sasl) != PN_SASL_PASS) {
pn_sasl_state_t st = pn_sasl_state(sasl);
switch (st) {
case PN_SASL_IDLE:
return;
case PN_SASL_CONF:
if (ctx->mechanism && !strcmp(ctx->mechanism, "PLAIN")) {
pn_sasl_plain(sasl, ctx->username, ctx->password);
} else {
pn_sasl_mechanisms(sasl, ctx->mechanism);
pn_sasl_client(sasl);
}
break;
case PN_SASL_STEP:
if (pn_sasl_pending(sasl)) {
fprintf(stderr, "challenge failed\n");
ctx->done = true;
}
return;
case PN_SASL_FAIL:
fprintf(stderr, "authentication failed\n");
ctx->done = true;
return;
case PN_SASL_PASS:
break;
}
}
pn_connection_t *connection = pn_connector_connection(ctor);
char tagstr[1024];
char msg[ctx->size];
char data[ctx->size + 16];
for (int i = 0; i < ctx->size; i++) {
msg[i] = 'x';
}
size_t ndata = pn_message_data(data, ctx->size + 16, msg, ctx->size);
if (!ctx->init) {
ctx->init = true;
char container[1024];
if (gethostname(container, 1024)) pn_fatal("hostname lookup failed");
pn_connection_set_container(connection, container);
pn_connection_set_hostname(connection, ctx->hostname);
pn_session_t *ssn = pn_session(connection);
pn_connection_open(connection);
pn_session_open(ssn);
if (ctx->send_count) {
pn_link_t *snd = pn_sender(ssn, "sender");
pn_set_target(snd, ctx->address);
pn_link_open(snd);
char buf[16];
for (int i = 0; i < ctx->send_count; i++) {
sprintf(buf, "%x", i);
pn_delivery(snd, pn_dtag(buf, strlen(buf)));
}
}
if (ctx->recv_count) {
pn_link_t *rcv = pn_receiver(ssn, "receiver");
pn_set_source(rcv, ctx->address);
pn_link_open(rcv);
pn_flow(rcv, ctx->recv_count < ctx->high ? ctx->recv_count : ctx->high);
}
}
pn_delivery_t *delivery = pn_work_head(connection);
while (delivery)
{
pn_delivery_tag_t tag = pn_delivery_tag(delivery);
pn_quote_data(tagstr, 1024, tag.bytes, tag.size);
pn_link_t *link = pn_link(delivery);
if (pn_writable(delivery)) {
pn_send(link, data, ndata);
if (pn_advance(link)) {
if (!ctx->quiet) printf("sent delivery: %s\n", tagstr);
}
} else if (pn_readable(delivery)) {
if (!ctx->quiet) {
printf("received delivery: %s\n", tagstr);
printf(" payload = \"");
}
while (true) {
size_t n = pn_recv(link, msg, 1024);
if (n == PN_EOS) {
pn_advance(link);
pn_disposition(delivery, PN_ACCEPTED);
pn_settle(delivery);
if (!--ctx->recv_count) {
pn_link_close(link);
}
break;
} else if (!ctx->quiet) {
pn_print_data(msg, n);
}
}
if (!ctx->quiet) printf("\"\n");
if (pn_credit(link) < ctx->low && pn_credit(link) < ctx->recv_count) {
pn_flow(link, (ctx->recv_count < ctx->high ? ctx->recv_count : ctx->high) - pn_credit(link));
}
}
if (pn_updated(delivery)) {
if (!ctx->quiet) printf("disposition for %s: %u\n", tagstr, pn_remote_disposition(delivery));
pn_clear(delivery);
pn_settle(delivery);
if (!--ctx->send_count) {
pn_link_close(link);
}
}
delivery = pn_work_next(delivery);
}
if (!ctx->send_count && !ctx->recv_count) {
printf("closing\n");
// XXX: how do we close the session?
//pn_close((pn_endpoint_t *) ssn);
pn_connection_close(connection);
}
if (pn_connection_state(connection) == (PN_LOCAL_CLOSED | PN_REMOTE_CLOSED)) {
ctx->done = true;
}
}
void server_callback(pn_connector_t *ctor)
{
pn_sasl_t *sasl = pn_connector_sasl(ctor);
while (pn_sasl_state(sasl) != PN_SASL_PASS) {
switch (pn_sasl_state(sasl)) {
case PN_SASL_IDLE:
return;
case PN_SASL_CONF:
pn_sasl_mechanisms(sasl, "PLAIN ANONYMOUS");
pn_sasl_server(sasl);
break;
case PN_SASL_STEP:
{
size_t n = pn_sasl_pending(sasl);
char iresp[n];
pn_sasl_recv(sasl, iresp, n);
printf("%s", pn_sasl_remote_mechanisms(sasl));
printf(" response = ");
pn_print_data(iresp, n);
printf("\n");
pn_sasl_done(sasl, PN_SASL_OK);
pn_connector_set_connection(ctor, pn_connection());
}
break;
case PN_SASL_PASS:
break;
case PN_SASL_FAIL:
return;
}
}
pn_connection_t *conn = pn_connector_connection(ctor);
struct server_context *ctx = pn_connector_context(ctor);
char tagstr[1024];
char msg[10*1024];
char data[ctx->size + 16];
for (int i = 0; i < ctx->size; i++) {
msg[i] = 'x';
}
size_t ndata = pn_message_data(data, ctx->size + 16, msg, ctx->size);
if (pn_connection_state(conn) == (PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE)) {
pn_connection_open(conn);
}
pn_session_t *ssn = pn_session_head(conn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE);
while (ssn) {
pn_session_open(ssn);
ssn = pn_session_next(ssn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE);
}
pn_link_t *link = pn_link_head(conn, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE);
while (link) {
printf("%s, %s\n", pn_remote_source(link), pn_remote_target(link));
pn_set_source(link, pn_remote_source(link));
pn_set_target(link, pn_remote_target(link));
pn_link_open(link);
if (pn_is_receiver(link)) {
pn_flow(link, 100);
} else {
pn_delivery(link, pn_dtag("blah", 4));
}
link = pn_link_next(link, PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE);
}
pn_delivery_t *delivery = pn_work_head(conn);
while (delivery)
{
pn_delivery_tag_t tag = pn_delivery_tag(delivery);
pn_quote_data(tagstr, 1024, tag.bytes, tag.size);
pn_link_t *link = pn_link(delivery);
if (pn_readable(delivery)) {
if (!ctx->quiet) {
printf("received delivery: %s\n", tagstr);
printf(" payload = \"");
}
while (true) {
ssize_t n = pn_recv(link, msg, 1024);
if (n == PN_EOS) {
pn_advance(link);
pn_disposition(delivery, PN_ACCEPTED);
break;
} else if (!ctx->quiet) {
pn_print_data(msg, n);
}
}
if (!ctx->quiet) printf("\"\n");
if (pn_credit(link) < 50) pn_flow(link, 100);
} else if (pn_writable(delivery)) {
pn_send(link, data, ndata);
if (pn_advance(link)) {
if (!ctx->quiet) printf("sent delivery: %s\n", tagstr);
char tagbuf[16];
sprintf(tagbuf, "%i", ctx->count++);
pn_delivery(link, pn_dtag(tagbuf, strlen(tagbuf)));
}
}
if (pn_updated(delivery)) {
if (!ctx->quiet) printf("disposition for %s: %u\n", tagstr, pn_remote_disposition(delivery));
pn_settle(delivery);
}
delivery = pn_work_next(delivery);
}
if (pn_connection_state(conn) == (PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED)) {
pn_connection_close(conn);
}
ssn = pn_session_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED);
while (ssn) {
pn_session_close(ssn);
ssn = pn_session_next(ssn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED);
}
link = pn_link_head(conn, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED);
while (link) {
pn_link_close(link);
link = pn_link_next(link, PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED);
}
}
int
main ( int argc, char ** argv )
{
char info[1000];
int expected = (argc > 1) ? atoi(argv[1]) : 100000;
int received = 0;
int size = 32;
int msg_size = 50;
bool done = false;
int initial_credit = 500,
new_credit = 250,
low_credit_limit = 250;
char const * host = "0.0.0.0";
char const * port = "5672";
bool sasl_done = false;
pn_driver_t * driver;
pn_listener_t * listener;
pn_connector_t * connector;
pn_connection_t * connection;
pn_session_t * session;
pn_link_t * link;
pn_delivery_t * delivery;
char * message_data = (char *) malloc ( MY_BUF_SIZE );
int message_data_capacity = MY_BUF_SIZE;
fprintf ( stderr, "drecv expecting %d messages.\n", expected );
driver = pn_driver ( );
if ( ! pn_listener(driver, host, port, 0) )
{
fprintf ( stderr, "listener creation failed.\n" );
exit ( 1 );
}
while ( ! done)
{
pn_driver_wait ( driver, -1 );
if ( (listener = pn_driver_listener(driver)) )
pn_listener_accept( listener );
if ( (connector = pn_driver_connector(driver)) )
{
pn_connector_process ( connector );
if ( ! sasl_done )
if( ! (sasl_done = get_sasl_over_with(connector) ))
continue;
connection = pn_connector_connection ( connector );
/*=========================================================
Open everything that is ready on the
other side but not here.
=========================================================*/
pn_state_t hes_ready_im_not = PN_LOCAL_UNINIT | PN_REMOTE_ACTIVE;
if (pn_connection_state(connection) == hes_ready_im_not)
pn_connection_open( connection);
for ( session = pn_session_head(connection, hes_ready_im_not);
session;
session = pn_session_next(session, hes_ready_im_not)
)
pn_session_open(session);
for ( link = pn_link_head(connection, hes_ready_im_not);
link;
link = pn_link_next(link, hes_ready_im_not)
)
{
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 );
if ( pn_link_is_receiver(link) )
pn_link_flow ( link, initial_credit );
}
/*==========================================================
Get all available deliveries.
==========================================================*/
for ( delivery = pn_work_head ( connection );
delivery;
delivery = pn_work_next ( delivery )
)
{
if ( pn_delivery_readable(delivery) )
{
link = pn_delivery_link ( delivery );
while ( PN_EOS != pn_link_recv(link, message_data, MY_BUF_SIZE) )
;
pn_link_advance ( link );
pn_delivery_update ( delivery, PN_ACCEPTED );
pn_delivery_settle ( delivery );
if ( ++ received >= expected )
{
sprintf ( info, "received %d messages", received );
print_timestamp ( stderr, info );
done = true;
}
// a progress report for long tests.
if ( ! (received % 5000000) )
fprintf ( stderr, "received: %d\n", received );
if ( pn_link_credit(link) <= low_credit_limit )
pn_link_flow ( link, new_credit );
}
else
{
// TODO
// Why am I getting writables?
// And what to do with them?
}
}
/*===============================================================
Shut down everything that the other side has closed.
===============================================================*/
pn_state_t active_here_closed_there = PN_LOCAL_ACTIVE | PN_REMOTE_CLOSED;
if ( pn_connection_state(connection) == active_here_closed_there )
pn_connection_close ( connection );
for ( session = pn_session_head(connection, active_here_closed_there);
session;
session = pn_session_next(session, active_here_closed_there)
)
pn_session_close ( session );
for ( link = pn_link_head(connection, active_here_closed_there);
link;
link = pn_link_next(link, active_here_closed_there)
)
pn_link_close ( link );
if ( pn_connector_closed(connector) )
{
pn_connection_free ( pn_connector_connection(connector) );
pn_connector_free ( connector );
done = true;
}
else
pn_connector_process(connector);
}
}
pn_driver_free(driver);
return 0;
}
