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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/messagebus/destinationsession.h>
#include <vespa/messagebus/error.h>
#include <vespa/messagebus/errorcode.h>
#include <vespa/messagebus/emptyreply.h>
#include <vespa/messagebus/messagebus.h>
#include <vespa/messagebus/routablequeue.h>
#include <vespa/messagebus/sourcesession.h>
#include <vespa/messagebus/sourcesessionparams.h>
#include <vespa/messagebus/routing/retrytransienterrorspolicy.h>
#include <vespa/messagebus/routing/routingcontext.h>
#include <vespa/messagebus/routing/routingspec.h>
#include <vespa/messagebus/testlib/simplemessage.h>
#include <vespa/messagebus/testlib/simpleprotocol.h>
#include <vespa/messagebus/testlib/slobrok.h>
#include <vespa/messagebus/testlib/testserver.h>
#include <vespa/vespalib/gtest/gtest.h>
#include <thread>
using namespace mbus;
struct DelayedHandler : public IMessageHandler
{
DestinationSession::UP session;
uint32_t delay;
DelayedHandler(MessageBus &mb, uint32_t d) : session(), delay(d) {
session = mb.createDestinationSession("session", true, *this);
}
~DelayedHandler() override {
session.reset();
}
void handleMessage(Message::UP msg) override {
// this will block the transport thread in the server messagebus,
// but that should be ok, as we only want to test the timing in the
// client messagebus...
std::this_thread::sleep_for(std::chrono::milliseconds(delay));
session->acknowledge(std::move(msg));
}
};
RoutingSpec getRouting() {
return RoutingSpec()
.addTable(RoutingTableSpec("Simple")
.addHop(HopSpec("dst", "dst/session"))
.addRoute(RouteSpec("dst").addHop("dst")));
}
RoutingSpec getBadRouting() {
return RoutingSpec()
.addTable(RoutingTableSpec("Simple")
.addHop(HopSpec("dst", "dst/session"))
.addRoute(RouteSpec("dst").addHop("dst")));
}
bool waitQueueSize(RoutableQueue &queue, uint32_t size) {
for (uint32_t i = 0; i < 60000; ++i) {
if (queue.size() == size) {
return true;
}
std::this_thread::sleep_for(1ms);
}
return false;
}
TEST(SourceSessionTest, test_sequencing)
{
Slobrok slobrok;
TestServer src(Identity(""), getRouting(), slobrok);
TestServer dst(Identity("dst"), getRouting(), slobrok);
RoutableQueue srcQ;
RoutableQueue dstQ;
SourceSessionParams params;
params.setThrottlePolicy(IThrottlePolicy::SP());
SourceSession::UP ss = src.mb.createSourceSession(srcQ, params);
DestinationSession::UP ds = dst.mb.createDestinationSession("session", true, dstQ);
ASSERT_TRUE(src.waitSlobrok("dst/session"));
EXPECT_TRUE(ss->send(Message::UP(new SimpleMessage("foo", true, 1)), "dst").isAccepted());
EXPECT_TRUE(ss->send(Message::UP(new SimpleMessage("foo", true, 2)), "dst").isAccepted());
EXPECT_TRUE(ss->send(Message::UP(new SimpleMessage("foo", true, 1)), "dst").isAccepted());
EXPECT_TRUE(waitQueueSize(dstQ, 2));
std::this_thread::sleep_for(250ms);
EXPECT_TRUE(waitQueueSize(dstQ, 2));
EXPECT_TRUE(waitQueueSize(srcQ, 0));
ds->acknowledge(Message::UP((Message*)dstQ.dequeue().release()));
ds->acknowledge(Message::UP((Message*)dstQ.dequeue().release()));
EXPECT_TRUE(waitQueueSize(srcQ, 2));
EXPECT_TRUE(waitQueueSize(dstQ, 1));
ds->acknowledge(Message::UP((Message*)dstQ.dequeue().release()));
ASSERT_TRUE(waitQueueSize(srcQ, 3));
ASSERT_TRUE(waitQueueSize(dstQ, 0));
}
TEST(SourceSessionTest, test_resend_error)
{
Slobrok slobrok;
auto retryPolicy = std::make_shared<RetryTransientErrorsPolicy>();
retryPolicy->setBaseDelay(0);
TestServer src(MessageBusParams().addProtocol(std::make_shared<SimpleProtocol>()).setRetryPolicy(retryPolicy),
RPCNetworkParams(slobrok.config()));
src.mb.setupRouting(getRouting());
TestServer dst(Identity("dst"), getRouting(), slobrok);
RoutableQueue srcQ;
RoutableQueue dstQ;
SourceSession::UP ss = src.mb.createSourceSession(srcQ);
DestinationSession::UP ds = dst.mb.createDestinationSession("session", true, dstQ);
ASSERT_TRUE(src.waitSlobrok("dst/session"));
{
Message::UP msg(new SimpleMessage("foo"));
msg->getTrace().setLevel(9);
EXPECT_TRUE(ss->send(std::move(msg), "dst").isAccepted());
}
EXPECT_TRUE(waitQueueSize(dstQ, 1));
{
Routable::UP r = dstQ.dequeue();
Reply::UP reply(new EmptyReply());
r->swapState(*reply);
reply->addError(Error(ErrorCode::FATAL_ERROR, "error"));
ds->reply(std::move(reply));
}
EXPECT_TRUE(waitQueueSize(srcQ, 1));
EXPECT_TRUE(waitQueueSize(dstQ, 0));
{
Message::UP msg(new SimpleMessage("foo"));
msg->getTrace().setLevel(9);
EXPECT_TRUE(ss->send(std::move(msg), "dst").isAccepted());
}
EXPECT_TRUE(waitQueueSize(dstQ, 1));
{
Routable::UP r = dstQ.dequeue();
Reply::UP reply(new EmptyReply());
r->swapState(*reply);
reply->addError(Error(ErrorCode::TRANSIENT_ERROR, "error"));
ds->reply(std::move(reply));
}
EXPECT_TRUE(waitQueueSize(dstQ, 1));
EXPECT_TRUE(waitQueueSize(srcQ, 1));
ds->acknowledge(Message::UP((Message*)dstQ.dequeue().release()));
ASSERT_TRUE(waitQueueSize(srcQ, 2));
ASSERT_TRUE(waitQueueSize(dstQ, 0));
{
string trace1 = srcQ.dequeue()->getTrace().toString();
string trace2 = srcQ.dequeue()->getTrace().toString();
fprintf(stderr, "\nTRACE DUMP:\n%s\n\n", trace1.c_str());
fprintf(stderr, "\nTRACE DUMP:\n%s\n\n", trace2.c_str());
}
}
TEST(SourceSessionTest, test_resend_conn_down)
{
Slobrok slobrok;
auto retryPolicy = std::make_shared<RetryTransientErrorsPolicy>();
retryPolicy->setBaseDelay(0);
TestServer src(MessageBusParams().addProtocol(std::make_shared<SimpleProtocol>()).setRetryPolicy(retryPolicy),
RPCNetworkParams(slobrok.config()));
src.mb.setupRouting(RoutingSpec().addTable(RoutingTableSpec(SimpleProtocol::NAME)
.addHop(HopSpec("dst", "dst2/session"))
.addHop(HopSpec("pxy", "[All]").addRecipient("dst"))
.addRoute(RouteSpec("dst").addHop("pxy"))));
RoutableQueue srcQ;
SourceSession::UP ss = src.mb.createSourceSession(srcQ);
TestServer dst(Identity("dst"), RoutingSpec(), slobrok);
RoutableQueue dstQ;
DestinationSession::UP ds = dst.mb.createDestinationSession("session", true, dstQ);
ASSERT_TRUE(src.waitSlobrok("dst/session", 1));
{
TestServer dst2(Identity("dst2"), RoutingSpec(), slobrok);
RoutableQueue dst2Q;
DestinationSession::UP ds2 = dst2.mb.createDestinationSession("session", true, dst2Q);
ASSERT_TRUE(src.waitSlobrok("dst2/session", 1));
Message::UP msg(new SimpleMessage("foo"));
msg->getTrace().setLevel(9);
EXPECT_TRUE(ss->send(std::move(msg), "dst").isAccepted());
EXPECT_TRUE(waitQueueSize(dst2Q, 1));
Routable::UP obj = dst2Q.dequeue();
obj->discard();
src.mb.setupRouting(RoutingSpec().addTable(RoutingTableSpec(SimpleProtocol::NAME)
.addHop(HopSpec("dst", "dst/session"))));
} // dst2 goes down, resend with new config
ASSERT_TRUE(waitQueueSize(dstQ, 1)); // fails
ASSERT_TRUE(waitQueueSize(srcQ, 0));
ds->acknowledge(Message::UP((Message*)dstQ.dequeue().release()));
ASSERT_TRUE(waitQueueSize(srcQ, 1));
ASSERT_TRUE(waitQueueSize(dstQ, 0));
string trace = srcQ.dequeue()->getTrace().toString();
fprintf(stderr, "\nTRACE DUMP:\n%s\n\n", trace.c_str());
}
TEST(SourceSessionTest, test_illegal_route)
{
Slobrok slobrok;
TestServer src(MessageBusParams()
.addProtocol(std::make_shared<SimpleProtocol>())
.setRetryPolicy(IRetryPolicy::SP()),
RPCNetworkParams(slobrok.config()));
src.mb.setupRouting(getRouting());
RoutableQueue srcQ;
SourceSession::UP ss = src.mb.createSourceSession(srcQ, SourceSessionParams());
{
// no such hop
Message::UP msg(new SimpleMessage("foo"));
msg->getTrace().setLevel(9);
msg->setRoute(Route::parse("bogus"));
EXPECT_TRUE(ss->send(std::move(msg)).isAccepted());
}
ASSERT_TRUE(waitQueueSize(srcQ, 1));
{
while (srcQ.size() > 0) {
Routable::UP routable = srcQ.dequeue();
ASSERT_TRUE(routable->isReply());
Reply::UP r(dynamic_cast<Reply*>(routable.release()));
EXPECT_EQ(1u, r->getNumErrors());
EXPECT_EQ((uint32_t)ErrorCode::NO_ADDRESS_FOR_SERVICE, r->getError(0).getCode());
string trace = r->getTrace().toString();
fprintf(stderr, "\nTRACE DUMP:\n%s\n\n", trace.c_str());
}
}
}
TEST(SourceSessionTest, test_no_services)
{
Slobrok slobrok;
TestServer src(MessageBusParams()
.addProtocol(std::make_shared<SimpleProtocol>())
.setRetryPolicy(IRetryPolicy::SP()),
RPCNetworkParams(slobrok.config()));
src.mb.setupRouting(getBadRouting());
RoutableQueue srcQ;
SourceSession::UP ss = src.mb.createSourceSession(srcQ);
{
// no services for hop
Message::UP msg(new SimpleMessage("foo"));
msg->getTrace().setLevel(9);
EXPECT_TRUE(ss->send(std::move(msg), "dst").isAccepted());
}
ASSERT_TRUE(waitQueueSize(srcQ, 1));
{
while (srcQ.size() > 0) {
Routable::UP routable = srcQ.dequeue();
ASSERT_TRUE(routable->isReply());
Reply::UP r(dynamic_cast<Reply*>(routable.release()));
EXPECT_TRUE(r->getNumErrors() == 1);
EXPECT_TRUE(r->getError(0).getCode() == ErrorCode::NO_ADDRESS_FOR_SERVICE);
string trace = r->getTrace().toString();
fprintf(stderr, "\nTRACE DUMP:\n%s\n\n", trace.c_str());
}
}
}
TEST(SourceSessionTest, test_blocking_close)
{
Slobrok slobrok;
TestServer src(Identity(""), getRouting(), slobrok);
TestServer dst(Identity("dst"), getRouting(), slobrok);
RoutableQueue srcQ;
DelayedHandler dstH(dst.mb, 1000);
ASSERT_TRUE(src.waitSlobrok("dst/session"));
SourceSessionParams params;
SourceSession::UP ss = src.mb.createSourceSession(srcQ, params);
EXPECT_TRUE(ss->send(Message::UP(new SimpleMessage("foo")), "dst").isAccepted());
ss->close();
srcQ.handleMessage(Message::UP(new SimpleMessage("bogus")));
Routable::UP routable = srcQ.dequeue();
EXPECT_TRUE(routable->isReply());
}
TEST(SourceSessionTest, test_non_blocking_close)
{
Slobrok slobrok;
TestServer src(Identity(""), getRouting(), slobrok);
RoutableQueue srcQ;
SourceSessionParams params;
SourceSession::UP ss = src.mb.createSourceSession(srcQ, params);
ss->close(); // this should not hang
}
GTEST_MAIN_RUN_ALL_TESTS()
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