diff options
Diffstat (limited to 'indra/test/llevents_tut.cpp')
| -rw-r--r-- | indra/test/llevents_tut.cpp | 1384 |
1 files changed, 714 insertions, 670 deletions
diff --git a/indra/test/llevents_tut.cpp b/indra/test/llevents_tut.cpp index 57e22bbb56..4699bb1827 100644 --- a/indra/test/llevents_tut.cpp +++ b/indra/test/llevents_tut.cpp @@ -54,686 +54,730 @@ using boost::assign::list_of; +#ifdef LL_LINUX +#define CATCH_MISSED_LINUX_EXCEPTION(exception, threw) \ +catch (const std::runtime_error& ex) \ +{ \ + /* This clause is needed on Linux, on the viewer side, because the */ \ + /* exception isn't caught by the clause above. Warn the user... */ \ + std::cerr << "Failed to catch " << typeid(ex).name() << std::endl; \ + /* But if the expected exception was thrown, allow the test to */ \ + /* succeed anyway. Not sure how else to handle this odd case. */ \ + /* This approach is also used in llsdmessage_test.cpp. */ \ + if (std::string(typeid(ex).name()) == typeid(exception).name()) \ + { \ + threw = ex.what(); \ + /*std::cout << ex.what() << std::endl;*/ \ + } \ + else \ + { \ + /* We don't even recognize this exception. Let it propagate */ \ + /* out to TUT to fail the test. */ \ + throw; \ + } \ +} \ +catch (...) \ +{ \ + std::cerr << "Utterly failed to catch expected exception " << #exception << "!" << \ + std::endl; \ + /* This indicates a problem in the test that should be addressed. */ \ + throw; \ +} + +#else // LL_LINUX +#define CATCH_MISSED_LINUX_EXCEPTION(exception, threw) \ + /* Not needed on other platforms */ +#endif // LL_LINUX + template<typename T> -T make(const T& value) { return value; } +T make(const T& value) +{ + return value; +} /***************************************************************************** -* tut test group -*****************************************************************************/ + * tut test group + *****************************************************************************/ namespace tut { - struct events_data - { - events_data(): - pumps(LLEventPumps::instance()), - listener0("first"), - listener1("second") - {} - LLEventPumps& pumps; - Listener listener0; - Listener listener1; - - void check_listener(const std::string& desc, const Listener& listener, LLSD::Integer got) - { - ensure_equals(STRINGIZE(listener << ' ' << desc), - listener.getLastEvent().asInteger(), got); - } - }; - typedef test_group<events_data> events_group; - typedef events_group::object events_object; - tut::events_group evgr("events"); - - template<> template<> - void events_object::test<1>() - { - set_test_name("basic operations"); - // Now there's a static constructor in llevents.cpp that registers on - // the "mainloop" pump to call LLEventPumps::flush(). - // Actually -- having to modify this to track the statically- - // constructed pumps in other TUT modules in this giant monolithic test - // executable isn't such a hot idea. -// ensure_equals("initial pump", pumps.mPumpMap.size(), 1); - size_t initial_pumps(pumps.mPumpMap.size()); - LLEventPump& per_frame(pumps.obtain("per-frame")); - ensure_equals("first explicit pump", pumps.mPumpMap.size(), initial_pumps+1); - // Verify that per_frame was instantiated as an LLEventStream. - ensure("LLEventStream leaf class", dynamic_cast<LLEventStream*>(&per_frame)); - ensure("enabled", per_frame.enabled()); - // Trivial test, but posting an event to an EventPump with no - // listeners should not blow up. The test is relevant because defining - // a boost::signal with a non-void return signature, using the default - // combiner, blows up if there are no listeners. This is because the - // default combiner is defined to return the value returned by the - // last listener, which is meaningless if there were no listeners. - per_frame.post(0); - LLBoundListener connection = listener0.listenTo(per_frame); - ensure("connected", connection.connected()); - ensure("not blocked", ! connection.blocked()); - per_frame.post(1); - check_listener("received", listener0, 1); - { // block the connection - LLEventPump::Blocker block(connection); - ensure("blocked", connection.blocked()); - per_frame.post(2); - check_listener("not updated", listener0, 1); - } // unblock - ensure("unblocked", ! connection.blocked()); - per_frame.post(3); - check_listener("unblocked", listener0, 3); - LLBoundListener sameConnection = per_frame.getListener(listener0.getName()); - ensure("still connected", sameConnection.connected()); - ensure("still not blocked", ! sameConnection.blocked()); - { // block it again - LLEventPump::Blocker block(sameConnection); - ensure("re-blocked", sameConnection.blocked()); - per_frame.post(4); - check_listener("re-blocked", listener0, 3); - } // unblock - bool threw = false; - try - { - // NOTE: boost::bind() saves its arguments by VALUE! If you pass - // an object instance rather than a pointer, you'll end up binding - // to an internal copy of that instance! Use boost::ref() to - // capture a reference instead. - per_frame.listen(listener0.getName(), // note bug, dup name - boost::bind(&Listener::call, boost::ref(listener1), _1)); - } - catch (const LLEventPump::DupListenerName& e) - { - threw = true; - ensure_equals(e.what(), - std::string("DupListenerName: " - "Attempt to register duplicate listener name '") + - listener0.getName() + - "' on " + typeid(per_frame).name() + " '" + per_frame.getName() + "'"); - } - ensure("threw DupListenerName", threw); - // do it right this time - listener1.listenTo(per_frame); - per_frame.post(5); - check_listener("got", listener0, 5); - check_listener("got", listener1, 5); - per_frame.enable(false); - per_frame.post(6); - check_listener("didn't get", listener0, 5); - check_listener("didn't get", listener1, 5); - per_frame.enable(); - per_frame.post(7); - check_listener("got", listener0, 7); - check_listener("got", listener1, 7); - per_frame.stopListening(listener0.getName()); - ensure("disconnected 0", ! connection.connected()); - ensure("disconnected 1", ! sameConnection.connected()); - per_frame.post(8); - check_listener("disconnected", listener0, 7); - check_listener("still connected", listener1, 8); - per_frame.stopListening(listener1.getName()); - per_frame.post(9); - check_listener("disconnected", listener1, 8); - } - - template<> template<> - void events_object::test<2>() - { - set_test_name("callstop() returning true"); - LLEventPump& per_frame(pumps.obtain("per-frame")); - listener0.reset(0); - listener1.reset(0); - LLBoundListener bound0 = listener0.listenTo(per_frame, &Listener::callstop); - LLBoundListener bound1 = listener1.listenTo(per_frame, &Listener::call, - // after listener0 - make<LLEventPump::NameList>(list_of(listener0.getName()))); - ensure("enabled", per_frame.enabled()); - ensure("connected 0", bound0.connected()); - ensure("unblocked 0", ! bound0.blocked()); - ensure("connected 1", bound1.connected()); - ensure("unblocked 1", ! bound1.blocked()); - per_frame.post(1); - check_listener("got", listener0, 1); - // Because listener0.callstop() returns true, control never reaches listener1.call(). - check_listener("got", listener1, 0); - } - - bool chainEvents(Listener& someListener, const LLSD& event) - { - // Make this call so we can watch for side effects for test purposes. - someListener.call(event); - // This function represents a recursive event chain -- or some other - // scenario in which an event handler raises additional events. - int value = event.asInteger(); - if (value) - { - LLEventPumps::instance().obtain("login").post(value - 1); - } - return false; - } - - template<> template<> - void events_object::test<3>() - { - set_test_name("LLEventQueue delayed action"); - // This access is NOT legal usage: we can do it only because we're - // hacking private for test purposes. Normally we'd either compile in - // a particular name, or (later) edit a config file. - pumps.mQueueNames.insert("login"); - LLEventPump& login(pumps.obtain("login")); - // The "mainloop" pump is special: posting on that implicitly calls - // LLEventPumps::flush(), which in turn should flush our "login" - // LLEventQueue. - LLEventPump& mainloop(pumps.obtain("mainloop")); - ensure("LLEventQueue leaf class", dynamic_cast<LLEventQueue*>(&login)); - listener0.listenTo(login); - listener0.reset(0); - login.post(1); - check_listener("waiting for queued event", listener0, 0); - mainloop.post(LLSD()); - check_listener("got queued event", listener0, 1); - login.stopListening(listener0.getName()); - // Verify that when an event handler posts a new event on the same - // LLEventQueue, it doesn't get processed in the same flush() call -- - // it waits until the next flush() call. - listener0.reset(17); - login.listen("chainEvents", boost::bind(chainEvents, boost::ref(listener0), _1)); - login.post(1); - check_listener("chainEvents(1) not yet called", listener0, 17); - mainloop.post(LLSD()); - check_listener("chainEvents(1) called", listener0, 1); - mainloop.post(LLSD()); - check_listener("chainEvents(0) called", listener0, 0); - mainloop.post(LLSD()); - check_listener("chainEvents(-1) not called", listener0, 0); - login.stopListening("chainEvents"); - } - - template<> template<> - void events_object::test<4>() - { - set_test_name("explicitly-instantiated LLEventStream"); - // Explicitly instantiate an LLEventStream, and verify that it - // self-registers with LLEventPumps - size_t registered = pumps.mPumpMap.size(); - size_t owned = pumps.mOurPumps.size(); - LLEventPump* localInstance; - { - LLEventStream myEventStream("stream"); - localInstance = &myEventStream; - LLEventPump& stream(pumps.obtain("stream")); - ensure("found named LLEventStream instance", &stream == localInstance); - ensure_equals("registered new instance", pumps.mPumpMap.size(), registered + 1); - ensure_equals("explicit instance not owned", pumps.mOurPumps.size(), owned); - } // destroy myEventStream -- should unregister - ensure_equals("destroyed instance unregistered", pumps.mPumpMap.size(), registered); - ensure_equals("destroyed instance not owned", pumps.mOurPumps.size(), owned); - LLEventPump& stream(pumps.obtain("stream")); - ensure("new LLEventStream instance", &stream != localInstance); - ensure_equals("obtain()ed instance registered", pumps.mPumpMap.size(), registered + 1); - ensure_equals("obtain()ed instance owned", pumps.mOurPumps.size(), owned + 1); - } - - template<> template<> - void events_object::test<5>() - { - set_test_name("stopListening()"); - LLEventPump& login(pumps.obtain("login")); - listener0.listenTo(login); - login.stopListening(listener0.getName()); - // should not throw because stopListening() should have removed name - listener0.listenTo(login, &Listener::callstop); - LLBoundListener wrong = login.getListener("bogus"); - ensure("bogus connection disconnected", ! wrong.connected()); - ensure("bogus connection blocked", wrong.blocked()); - } - - template<> template<> - void events_object::test<6>() - { - set_test_name("chaining LLEventPump instances"); - LLEventPump& upstream(pumps.obtain("upstream")); - // One potentially-useful construct is to chain LLEventPumps together. - // Among other things, this allows you to turn subsets of listeners on - // and off in groups. - LLEventPump& filter0(pumps.obtain("filter0")); - LLEventPump& filter1(pumps.obtain("filter1")); - upstream.listen(filter0.getName(), - boost::bind(&LLEventPump::post, boost::ref(filter0), _1)); - upstream.listen(filter1.getName(), - boost::bind(&LLEventPump::post, boost::ref(filter1), _1)); - listener0.listenTo(filter0); - listener1.listenTo(filter1); - listener0.reset(0); - listener1.reset(0); - upstream.post(1); - check_listener("got unfiltered", listener0, 1); - check_listener("got unfiltered", listener1, 1); - filter0.enable(false); - upstream.post(2); - check_listener("didn't get filtered", listener0, 1); - check_listener("got filtered", listener1, 2); - } - - template<> template<> - void events_object::test<7>() - { - set_test_name("listener dependency order"); - typedef LLEventPump::NameList NameList; - typedef Collect::StringList StringList; - LLEventPump& button(pumps.obtain("button")); - Collect collector; - button.listen("Mary", - boost::bind(&Collect::add, boost::ref(collector), "Mary", _1), - // state that "Mary" must come after "checked" - make<NameList>(list_of("checked"))); - button.listen("checked", - boost::bind(&Collect::add, boost::ref(collector), "checked", _1), - // "checked" must come after "spot" - make<NameList>(list_of("spot"))); - button.listen("spot", - boost::bind(&Collect::add, boost::ref(collector), "spot", _1)); - button.post(1); - ensure_equals(collector.result, make<StringList>(list_of("spot")("checked")("Mary"))); - collector.clear(); - button.stopListening("Mary"); - button.listen("Mary", - boost::bind(&Collect::add, boost::ref(collector), "Mary", _1), - LLEventPump::empty, // no after dependencies - // now "Mary" must come before "spot" - make<NameList>(list_of("spot"))); - button.post(2); - ensure_equals(collector.result, make<StringList>(list_of("Mary")("spot")("checked"))); - collector.clear(); - button.stopListening("spot"); - std::string threw; - try - { - button.listen("spot", - boost::bind(&Collect::add, boost::ref(collector), "spot", _1), - // after "Mary" and "checked" -- whoops! - make<NameList>(list_of("Mary")("checked"))); - } - catch (const LLEventPump::Cycle& e) - { - threw = e.what(); -// std::cout << "Caught: " << e.what() << '\n'; - } - // Obviously the specific wording of the exception text can - // change; go ahead and change the test to match. - // Establish that it contains: - // - the name and runtime type of the LLEventPump - ensure_contains("LLEventPump type", threw, typeid(button).name()); - ensure_contains("LLEventPump name", threw, "'button'"); - // - the name of the new listener that caused the problem - ensure_contains("new listener name", threw, "'spot'"); - // - a synopsis of the problematic dependencies. - ensure_contains("cyclic dependencies", threw, - "\"Mary\" -> before (\"spot\")"); - ensure_contains("cyclic dependencies", threw, - "after (\"spot\") -> \"checked\""); - ensure_contains("cyclic dependencies", threw, - "after (\"Mary\", \"checked\") -> \"spot\""); - button.listen("yellow", - boost::bind(&Collect::add, boost::ref(collector), "yellow", _1), - make<NameList>(list_of("checked"))); - button.listen("shoelaces", - boost::bind(&Collect::add, boost::ref(collector), "shoelaces", _1), - make<NameList>(list_of("checked"))); - button.post(3); - ensure_equals(collector.result, make<StringList>(list_of("Mary")("checked")("yellow")("shoelaces"))); - collector.clear(); - threw.clear(); - try - { - button.listen("of", - boost::bind(&Collect::add, boost::ref(collector), "of", _1), - make<NameList>(list_of("shoelaces")), - make<NameList>(list_of("yellow"))); - } - catch (const LLEventPump::OrderChange& e) - { - threw = e.what(); -// std::cout << "Caught: " << e.what() << '\n'; - } - // Same remarks about the specific wording of the exception. Just - // ensure that it contains enough information to clarify the - // problem and what must be done to resolve it. - ensure_contains("LLEventPump type", threw, typeid(button).name()); - ensure_contains("LLEventPump name", threw, "'button'"); - ensure_contains("new listener name", threw, "'of'"); - ensure_contains("prev listener name", threw, "'yellow'"); - ensure_contains("old order", threw, "was: Mary, checked, yellow, shoelaces"); - ensure_contains("new order", threw, "now: Mary, checked, shoelaces, of, yellow"); - button.post(4); - ensure_equals(collector.result, make<StringList>(list_of("Mary")("checked")("yellow")("shoelaces"))); - } - - template<> template<> - void events_object::test<8>() - { - set_test_name("tweaked and untweaked LLEventPump instance names"); - { // nested scope - // Hand-instantiate an LLEventStream... - LLEventStream bob("bob"); - bool threw = false; - try - { - // then another with a duplicate name. - LLEventStream bob2("bob"); - } - catch (const LLEventPump::DupPumpName& /*e*/) - { - threw = true; -// std::cout << "Caught: " << e.what() << '\n'; - } - ensure("Caught DupPumpName", threw); - } // delete first 'bob' - LLEventStream bob("bob"); // should work, previous one unregistered - LLEventStream bob1("bob", true); // allowed to tweak name - ensure_equals("tweaked LLEventStream name", bob1.getName(), "bob1"); - std::vector< boost::shared_ptr<LLEventStream> > streams; - for (int i = 2; i <= 10; ++i) - { - streams.push_back(boost::shared_ptr<LLEventStream>(new LLEventStream("bob", true))); - } - ensure_equals("last tweaked LLEventStream name", streams.back()->getName(), "bob10"); - } - - // Define a function that accepts an LLListenerOrPumpName - void eventSource(const LLListenerOrPumpName& listener) - { - // Pretend that some time has elapsed. Call listener immediately. - listener(17); - } - - template<> template<> - void events_object::test<9>() - { - set_test_name("LLListenerOrPumpName"); - // Passing a boost::bind() expression to LLListenerOrPumpName - listener0.reset(0); - eventSource(boost::bind(&Listener::call, boost::ref(listener0), _1)); - check_listener("got by listener", listener0, 17); - // Passing a string LLEventPump name to LLListenerOrPumpName - listener0.reset(0); - LLEventStream random("random"); - listener0.listenTo(random); - eventSource("random"); - check_listener("got by pump name", listener0, 17); - bool threw = false; - try - { - LLListenerOrPumpName empty; - empty(17); - } - catch (const LLListenerOrPumpName::Empty&) - { - threw = true; - } - ensure("threw Empty", threw); - } - - class TempListener: public Listener - { - public: - TempListener(const std::string& name, bool& liveFlag): - Listener(name), - mLiveFlag(liveFlag) - { - mLiveFlag = true; - } - - virtual ~TempListener() - { - mLiveFlag = false; - } - - private: - bool& mLiveFlag; - }; - - template<> template<> - void events_object::test<10>() - { - set_test_name("listen(boost::bind(...TempListener...))"); - // listen() can't do anything about a plain TempListener instance: - // it's not managed with shared_ptr, nor is it an LLEventTrackable subclass - bool live = false; - LLEventPump& heaptest(pumps.obtain("heaptest")); - LLBoundListener connection; - { - TempListener tempListener("temp", live); - ensure("TempListener constructed", live); - connection = heaptest.listen(tempListener.getName(), - boost::bind(&Listener::call, - boost::ref(tempListener), - _1)); - heaptest.post(1); - check_listener("received", tempListener, 1); - } // presumably this will make newListener go away? - // verify that - ensure("TempListener destroyed", ! live); - // This is the case against which we can't defend. Don't even try to - // post to heaptest -- that would engage Undefined Behavior. - // Cautiously inspect connection... - ensure("misleadingly connected", connection.connected()); - // then disconnect by hand. - heaptest.stopListening("temp"); - } - - template<> template<> - void events_object::test<11>() - { - set_test_name("listen(boost::bind(...weak_ptr...))"); - // listen() detecting weak_ptr<TempListener> in boost::bind() object - bool live = false; - LLEventPump& heaptest(pumps.obtain("heaptest")); - LLBoundListener connection; - ensure("default state", ! connection.connected()); - { - boost::shared_ptr<TempListener> newListener(new TempListener("heap", live)); - newListener->reset(); - ensure("TempListener constructed", live); - connection = heaptest.listen(newListener->getName(), - boost::bind(&Listener::call, weaken(newListener), _1)); - ensure("new connection", connection.connected()); - heaptest.post(1); - check_listener("received", *newListener, 1); - } // presumably this will make newListener go away? - // verify that - ensure("TempListener destroyed", ! live); - ensure("implicit disconnect", ! connection.connected()); - // now just make sure we don't blow up trying to access a freed object! - heaptest.post(2); - } - - template<> template<> - void events_object::test<12>() - { - set_test_name("listen(boost::bind(...shared_ptr...))"); -/*==========================================================================*| - // DISABLED because I've made this case produce a compile error. - // Following the error leads the disappointed dev to a comment - // instructing her to use the weaken() function to bind a weak_ptr<T> - // instead of binding a shared_ptr<T>, and explaining why. I know of - // no way to use TUT to code a repeatable test in which the expected - // outcome is a compile error. The interested reader is invited to - // uncomment this block and build to see for herself. - - // listen() detecting shared_ptr<TempListener> in boost::bind() object - bool live = false; - LLEventPump& heaptest(pumps.obtain("heaptest")); - LLBoundListener connection; - std::string listenerName("heap"); - ensure("default state", ! connection.connected()); - { - boost::shared_ptr<TempListener> newListener(new TempListener(listenerName, live)); - ensure_equals("use_count", newListener.use_count(), 1); - newListener->reset(); - ensure("TempListener constructed", live); - connection = heaptest.listen(newListener->getName(), - boost::bind(&Listener::call, newListener, _1)); - ensure("new connection", connection.connected()); - ensure_equals("use_count", newListener.use_count(), 2); - heaptest.post(1); - check_listener("received", *newListener, 1); - } // this should make newListener go away... - // Unfortunately, the fact that we've bound a shared_ptr by value into - // our LLEventPump means that copy will keep the referenced object alive. - ensure("TempListener still alive", live); - ensure("still connected", connection.connected()); - // disconnecting explicitly should delete the TempListener... - heaptest.stopListening(listenerName); +struct events_data +{ + events_data() : + pumps(LLEventPumps::instance()), + listener0("first"), + listener1("second") + { + } + LLEventPumps& pumps; + Listener listener0; + Listener listener1; + + void check_listener(const std::string& desc, const Listener& listener, LLSD::Integer got) + { + ensure_equals(STRINGIZE(listener << ' ' << desc), + listener.getLastEvent().asInteger(), got); + } +}; +typedef test_group<events_data> events_group; +typedef events_group::object events_object; +tut::events_group evgr("events"); + +template<> template<> +void events_object::test<1>() +{ + set_test_name("basic operations"); + // Now there's a static constructor in llevents.cpp that registers on + // the "mainloop" pump to call LLEventPumps::flush(). + // Actually -- having to modify this to track the statically- + // constructed pumps in other TUT modules in this giant monolithic test + // executable isn't such a hot idea. + // ensure_equals("initial pump", pumps.mPumpMap.size(), 1); + size_t initial_pumps(pumps.mPumpMap.size()); + LLEventPump& per_frame(pumps.obtain("per-frame")); + ensure_equals("first explicit pump", pumps.mPumpMap.size(), initial_pumps + 1); + // Verify that per_frame was instantiated as an LLEventStream. + ensure("LLEventStream leaf class", dynamic_cast<LLEventStream*> (&per_frame)); + ensure("enabled", per_frame.enabled()); + // Trivial test, but posting an event to an EventPump with no + // listeners should not blow up. The test is relevant because defining + // a boost::signal with a non-void return signature, using the default + // combiner, blows up if there are no listeners. This is because the + // default combiner is defined to return the value returned by the + // last listener, which is meaningless if there were no listeners. + per_frame.post(0); + LLBoundListener connection = listener0.listenTo(per_frame); + ensure("connected", connection.connected()); + ensure("not blocked", !connection.blocked()); + per_frame.post(1); + check_listener("received", listener0, 1); + { // block the connection + LLEventPump::Blocker block(connection); + ensure("blocked", connection.blocked()); + per_frame.post(2); + check_listener("not updated", listener0, 1); + } // unblock + ensure("unblocked", !connection.blocked()); + per_frame.post(3); + check_listener("unblocked", listener0, 3); + LLBoundListener sameConnection = per_frame.getListener(listener0.getName()); + ensure("still connected", sameConnection.connected()); + ensure("still not blocked", !sameConnection.blocked()); + { // block it again + LLEventPump::Blocker block(sameConnection); + ensure("re-blocked", sameConnection.blocked()); + per_frame.post(4); + check_listener("re-blocked", listener0, 3); + } // unblock + std::string threw; + try + { + // NOTE: boost::bind() saves its arguments by VALUE! If you pass + // an object instance rather than a pointer, you'll end up binding + // to an internal copy of that instance! Use boost::ref() to + // capture a reference instead. + per_frame.listen(listener0.getName(), // note bug, dup name + boost::bind(&Listener::call, boost::ref(listener1), _1)); + } + catch (const LLEventPump::DupListenerName& e) + { + threw = e.what(); + } + CATCH_MISSED_LINUX_EXCEPTION(LLEventPump::DupListenerName, threw) + ensure_equals(threw, + std::string("DupListenerName: " + "Attempt to register duplicate listener name '") + + listener0.getName() + "' on " + typeid(per_frame).name() + + " '" + per_frame.getName() + "'"); + // do it right this time + listener1.listenTo(per_frame); + per_frame.post(5); + check_listener("got", listener0, 5); + check_listener("got", listener1, 5); + per_frame.enable(false); + per_frame.post(6); + check_listener("didn't get", listener0, 5); + check_listener("didn't get", listener1, 5); + per_frame.enable(); + per_frame.post(7); + check_listener("got", listener0, 7); + check_listener("got", listener1, 7); + per_frame.stopListening(listener0.getName()); + ensure("disconnected 0", ! connection.connected()); + ensure("disconnected 1", ! sameConnection.connected()); + per_frame.post(8); + check_listener("disconnected", listener0, 7); + check_listener("still connected", listener1, 8); + per_frame.stopListening(listener1.getName()); + per_frame.post(9); + check_listener("disconnected", listener1, 8); +} + +template<> template<> +void events_object::test<2>() +{ + set_test_name("callstop() returning true"); + LLEventPump& per_frame(pumps.obtain("per-frame")); + listener0.reset(0); + listener1.reset(0); + LLBoundListener bound0 = listener0.listenTo(per_frame, &Listener::callstop); + LLBoundListener bound1 = listener1.listenTo(per_frame, &Listener::call, + // after listener0 + make<LLEventPump::NameList>(list_of(listener0.getName()))); + ensure("enabled", per_frame.enabled()); + ensure("connected 0", bound0.connected()); + ensure("unblocked 0", !bound0.blocked()); + ensure("connected 1", bound1.connected()); + ensure("unblocked 1", !bound1.blocked()); + per_frame.post(1); + check_listener("got", listener0, 1); + // Because listener0.callstop() returns true, control never reaches listener1.call(). + check_listener("got", listener1, 0); +} + +bool chainEvents(Listener& someListener, const LLSD& event) +{ + // Make this call so we can watch for side effects for test purposes. + someListener.call(event); + // This function represents a recursive event chain -- or some other + // scenario in which an event handler raises additional events. + int value = event.asInteger(); + if (value) + { + LLEventPumps::instance().obtain("login").post(value - 1); + } + return false; +} + +template<> template<> +void events_object::test<3>() +{ + set_test_name("LLEventQueue delayed action"); + // This access is NOT legal usage: we can do it only because we're + // hacking private for test purposes. Normally we'd either compile in + // a particular name, or (later) edit a config file. + pumps.mQueueNames.insert("login"); + LLEventPump& login(pumps.obtain("login")); + // The "mainloop" pump is special: posting on that implicitly calls + // LLEventPumps::flush(), which in turn should flush our "login" + // LLEventQueue. + LLEventPump& mainloop(pumps.obtain("mainloop")); + ensure("LLEventQueue leaf class", dynamic_cast<LLEventQueue*> (&login)); + listener0.listenTo(login); + listener0.reset(0); + login.post(1); + check_listener("waiting for queued event", listener0, 0); + mainloop.post(LLSD()); + check_listener("got queued event", listener0, 1); + login.stopListening(listener0.getName()); + // Verify that when an event handler posts a new event on the same + // LLEventQueue, it doesn't get processed in the same flush() call -- + // it waits until the next flush() call. + listener0.reset(17); + login.listen("chainEvents", boost::bind(chainEvents, boost::ref(listener0), _1)); + login.post(1); + check_listener("chainEvents(1) not yet called", listener0, 17); + mainloop.post(LLSD()); + check_listener("chainEvents(1) called", listener0, 1); + mainloop.post(LLSD()); + check_listener("chainEvents(0) called", listener0, 0); + mainloop.post(LLSD()); + check_listener("chainEvents(-1) not called", listener0, 0); + login.stopListening("chainEvents"); +} + +template<> template<> +void events_object::test<4>() +{ + set_test_name("explicitly-instantiated LLEventStream"); + // Explicitly instantiate an LLEventStream, and verify that it + // self-registers with LLEventPumps + size_t registered = pumps.mPumpMap.size(); + size_t owned = pumps.mOurPumps.size(); + LLEventPump* localInstance; + { + LLEventStream myEventStream("stream"); + localInstance = &myEventStream; + LLEventPump& stream(pumps.obtain("stream")); + ensure("found named LLEventStream instance", &stream == localInstance); + ensure_equals("registered new instance", pumps.mPumpMap.size(), registered + 1); + ensure_equals("explicit instance not owned", pumps.mOurPumps.size(), owned); + } // destroy myEventStream -- should unregister + ensure_equals("destroyed instance unregistered", pumps.mPumpMap.size(), registered); + ensure_equals("destroyed instance not owned", pumps.mOurPumps.size(), owned); + LLEventPump& stream(pumps.obtain("stream")); + ensure("new LLEventStream instance", &stream != localInstance); + ensure_equals("obtain()ed instance registered", pumps.mPumpMap.size(), registered + 1); + ensure_equals("obtain()ed instance owned", pumps.mOurPumps.size(), owned + 1); +} + +template<> template<> +void events_object::test<5>() +{ + set_test_name("stopListening()"); + LLEventPump& login(pumps.obtain("login")); + listener0.listenTo(login); + login.stopListening(listener0.getName()); + // should not throw because stopListening() should have removed name + listener0.listenTo(login, &Listener::callstop); + LLBoundListener wrong = login.getListener("bogus"); + ensure("bogus connection disconnected", !wrong.connected()); + ensure("bogus connection blocked", wrong.blocked()); +} + +template<> template<> +void events_object::test<6>() +{ + set_test_name("chaining LLEventPump instances"); + LLEventPump& upstream(pumps.obtain("upstream")); + // One potentially-useful construct is to chain LLEventPumps together. + // Among other things, this allows you to turn subsets of listeners on + // and off in groups. + LLEventPump& filter0(pumps.obtain("filter0")); + LLEventPump& filter1(pumps.obtain("filter1")); + upstream.listen(filter0.getName(), boost::bind(&LLEventPump::post, boost::ref(filter0), _1)); + upstream.listen(filter1.getName(), boost::bind(&LLEventPump::post, boost::ref(filter1), _1)); + listener0.listenTo(filter0); + listener1.listenTo(filter1); + listener0.reset(0); + listener1.reset(0); + upstream.post(1); + check_listener("got unfiltered", listener0, 1); + check_listener("got unfiltered", listener1, 1); + filter0.enable(false); + upstream.post(2); + check_listener("didn't get filtered", listener0, 1); + check_listener("got filtered", listener1, 2); +} + +template<> template<> +void events_object::test<7>() +{ + set_test_name("listener dependency order"); + typedef LLEventPump::NameList NameList; + typedef Collect::StringList StringList; + LLEventPump& button(pumps.obtain("button")); + Collect collector; + button.listen("Mary", + boost::bind(&Collect::add, boost::ref(collector), "Mary", _1), + // state that "Mary" must come after "checked" + make<NameList> (list_of("checked"))); + button.listen("checked", + boost::bind(&Collect::add, boost::ref(collector), "checked", _1), + // "checked" must come after "spot" + make<NameList> (list_of("spot"))); + button.listen("spot", + boost::bind(&Collect::add, boost::ref(collector), "spot", _1)); + button.post(1); + ensure_equals(collector.result, make<StringList>(list_of("spot")("checked")("Mary"))); + collector.clear(); + button.stopListening("Mary"); + button.listen("Mary", + boost::bind(&Collect::add, boost::ref(collector), "Mary", _1), + LLEventPump::empty, // no after dependencies + // now "Mary" must come before "spot" + make<NameList>(list_of("spot"))); + button.post(2); + ensure_equals(collector.result, make<StringList>(list_of("Mary")("spot")("checked"))); + collector.clear(); + button.stopListening("spot"); + std::string threw; + try + { + button.listen("spot", + boost::bind(&Collect::add, boost::ref(collector), "spot", _1), + // after "Mary" and "checked" -- whoops! + make<NameList>(list_of("Mary")("checked"))); + } + catch (const LLEventPump::Cycle& e) + { + threw = e.what(); + // std::cout << "Caught: " << e.what() << '\n'; + } + CATCH_MISSED_LINUX_EXCEPTION(LLEventPump::Cycle, threw) + // Obviously the specific wording of the exception text can + // change; go ahead and change the test to match. + // Establish that it contains: + // - the name and runtime type of the LLEventPump + ensure_contains("LLEventPump type", threw, typeid(button).name()); + ensure_contains("LLEventPump name", threw, "'button'"); + // - the name of the new listener that caused the problem + ensure_contains("new listener name", threw, "'spot'"); + // - a synopsis of the problematic dependencies. + ensure_contains("cyclic dependencies", threw, + "\"Mary\" -> before (\"spot\")"); + ensure_contains("cyclic dependencies", threw, + "after (\"spot\") -> \"checked\""); + ensure_contains("cyclic dependencies", threw, + "after (\"Mary\", \"checked\") -> \"spot\""); + button.listen("yellow", + boost::bind(&Collect::add, boost::ref(collector), "yellow", _1), + make<NameList>(list_of("checked"))); + button.listen("shoelaces", + boost::bind(&Collect::add, boost::ref(collector), "shoelaces", _1), + make<NameList>(list_of("checked"))); + button.post(3); + ensure_equals(collector.result, make<StringList>(list_of("Mary")("checked")("yellow")("shoelaces"))); + collector.clear(); + threw.clear(); + try + { + button.listen("of", + boost::bind(&Collect::add, boost::ref(collector), "of", _1), + make<NameList>(list_of("shoelaces")), + make<NameList>(list_of("yellow"))); + } + catch (const LLEventPump::OrderChange& e) + { + threw = e.what(); + // std::cout << "Caught: " << e.what() << '\n'; + } + CATCH_MISSED_LINUX_EXCEPTION(LLEventPump::OrderChange, threw) + // Same remarks about the specific wording of the exception. Just + // ensure that it contains enough information to clarify the + // problem and what must be done to resolve it. + ensure_contains("LLEventPump type", threw, typeid(button).name()); + ensure_contains("LLEventPump name", threw, "'button'"); + ensure_contains("new listener name", threw, "'of'"); + ensure_contains("prev listener name", threw, "'yellow'"); + // std::cout << "Thrown Exception: " << threw << std::endl; + ensure_contains("old order", threw, "was: Mary, checked, yellow, shoelaces"); + ensure_contains("new order", threw, "now: Mary, checked, shoelaces, of, yellow"); + button.post(4); + ensure_equals(collector.result, make<StringList>(list_of("Mary")("checked")("yellow")("shoelaces"))); +} + +template<> template<> +void events_object::test<8>() +{ + set_test_name("tweaked and untweaked LLEventPump instance names"); + { // nested scope + // Hand-instantiate an LLEventStream... + LLEventStream bob("bob"); + std::string threw; + try + { + // then another with a duplicate name. + LLEventStream bob2("bob"); + } + catch (const LLEventPump::DupPumpName& e) + { + threw = e.what(); + // std::cout << "Caught: " << e.what() << '\n'; + } + CATCH_MISSED_LINUX_EXCEPTION(LLEventPump::DupPumpName, threw) + ensure("Caught DupPumpName", !threw.empty()); + } // delete first 'bob' + LLEventStream bob("bob"); // should work, previous one unregistered + LLEventStream bob1("bob", true);// allowed to tweak name + ensure_equals("tweaked LLEventStream name", bob1.getName(), "bob1"); + std::vector<boost::shared_ptr<LLEventStream> > streams; + for (int i = 2; i <= 10; ++i) + { + streams.push_back(boost::shared_ptr<LLEventStream>(new LLEventStream("bob", true))); + } + ensure_equals("last tweaked LLEventStream name", streams.back()->getName(), "bob10"); +} + +// Define a function that accepts an LLListenerOrPumpName +void eventSource(const LLListenerOrPumpName& listener) +{ + // Pretend that some time has elapsed. Call listener immediately. + listener(17); +} + +template<> template<> +void events_object::test<9>() +{ + set_test_name("LLListenerOrPumpName"); + // Passing a boost::bind() expression to LLListenerOrPumpName + listener0.reset(0); + eventSource(boost::bind(&Listener::call, boost::ref(listener0), _1)); + check_listener("got by listener", listener0, 17); + // Passing a string LLEventPump name to LLListenerOrPumpName + listener0.reset(0); + LLEventStream random("random"); + listener0.listenTo(random); + eventSource("random"); + check_listener("got by pump name", listener0, 17); + std::string threw; + try + { + LLListenerOrPumpName empty; + empty(17); + } + catch (const LLListenerOrPumpName::Empty& e) + { + threw = e.what(); + } + CATCH_MISSED_LINUX_EXCEPTION(LLListenerOrPumpName::Empty, threw) + + ensure("threw Empty", !threw.empty()); +} + +class TempListener: public Listener +{ +public: + TempListener(const std::string& name, bool& liveFlag) : + Listener(name), mLiveFlag(liveFlag) + { + mLiveFlag = true; + } + + virtual ~TempListener() + { + mLiveFlag = false; + } + +private: + bool& mLiveFlag; +}; + +template<> template<> +void events_object::test<10>() +{ + set_test_name("listen(boost::bind(...TempListener...))"); + // listen() can't do anything about a plain TempListener instance: + // it's not managed with shared_ptr, nor is it an LLEventTrackable subclass + bool live = false; + LLEventPump& heaptest(pumps.obtain("heaptest")); + LLBoundListener connection; + { + TempListener tempListener("temp", live); + ensure("TempListener constructed", live); + connection = heaptest.listen(tempListener.getName(), + boost::bind(&Listener::call, + boost::ref(tempListener), + _1)); + heaptest.post(1); + check_listener("received", tempListener, 1); + } // presumably this will make newListener go away? + // verify that + ensure("TempListener destroyed", !live); + // This is the case against which we can't defend. Don't even try to + // post to heaptest -- that would engage Undefined Behavior. + // Cautiously inspect connection... + ensure("misleadingly connected", connection.connected()); + // then disconnect by hand. + heaptest.stopListening("temp"); +} + +template<> template<> +void events_object::test<11>() +{ + set_test_name("listen(boost::bind(...weak_ptr...))"); + // listen() detecting weak_ptr<TempListener> in boost::bind() object + bool live = false; + LLEventPump& heaptest(pumps.obtain("heaptest")); + LLBoundListener connection; + ensure("default state", !connection.connected()); + { + boost::shared_ptr<TempListener> newListener(new TempListener("heap", live)); + newListener->reset(); + ensure("TempListener constructed", live); + connection = heaptest.listen(newListener->getName(), + boost::bind(&Listener::call, + weaken(newListener), + _1)); + ensure("new connection", connection.connected()); + heaptest.post(1); + check_listener("received", *newListener, 1); + } // presumably this will make newListener go away? + // verify that + ensure("TempListener destroyed", !live); + ensure("implicit disconnect", !connection.connected()); + // now just make sure we don't blow up trying to access a freed object! + heaptest.post(2); +} + +template<> template<> +void events_object::test<12>() +{ + set_test_name("listen(boost::bind(...shared_ptr...))"); + /*==========================================================================*| + // DISABLED because I've made this case produce a compile error. + // Following the error leads the disappointed dev to a comment + // instructing her to use the weaken() function to bind a weak_ptr<T> + // instead of binding a shared_ptr<T>, and explaining why. I know of + // no way to use TUT to code a repeatable test in which the expected + // outcome is a compile error. The interested reader is invited to + // uncomment this block and build to see for herself. + + // listen() detecting shared_ptr<TempListener> in boost::bind() object + bool live = false; + LLEventPump& heaptest(pumps.obtain("heaptest")); + LLBoundListener connection; + std::string listenerName("heap"); + ensure("default state", !connection.connected()); + { + boost::shared_ptr<TempListener> newListener(new TempListener(listenerName, live)); + ensure_equals("use_count", newListener.use_count(), 1); + newListener->reset(); + ensure("TempListener constructed", live); + connection = heaptest.listen(newListener->getName(), + boost::bind(&Listener::call, newListener, _1)); + ensure("new connection", connection.connected()); + ensure_equals("use_count", newListener.use_count(), 2); + heaptest.post(1); + check_listener("received", *newListener, 1); + } // this should make newListener go away... + // Unfortunately, the fact that we've bound a shared_ptr by value into + // our LLEventPump means that copy will keep the referenced object alive. + ensure("TempListener still alive", live); + ensure("still connected", connection.connected()); + // disconnecting explicitly should delete the TempListener... + heaptest.stopListening(listenerName); #if 0 // however, in my experience, it does not. I don't know why not. - // Ah: on 2009-02-19, Frank Mori Hess, author of the Boost.Signals2 - // library, stated on the boost-users mailing list: - // http://www.nabble.com/Re%3A--signals2--review--The-review-of-the-signals2-library-(formerly-thread_safe_signals)-begins-today%2C-Nov-1st-p22102367.html - // "It will get destroyed eventually. The signal cleans up its slot - // list little by little during connect/invoke. It doesn't immediately - // remove disconnected slots from the slot list since other threads - // might be using the same slot list concurrently. It might be - // possible to make it immediately reset the shared_ptr owning the - // slot though, leaving an empty shared_ptr in the slot list, since - // that wouldn't invalidate any iterators." - ensure("TempListener destroyed", ! live); - ensure("implicit disconnect", ! connection.connected()); + // Ah: on 2009-02-19, Frank Mori Hess, author of the Boost.Signals2 + // library, stated on the boost-users mailing list: + // http://www.nabble.com/Re%3A--signals2--review--The-review-of-the-signals2-library-(formerly-thread_safe_signals)-begins-today%2C-Nov-1st-p22102367.html + // "It will get destroyed eventually. The signal cleans up its slot + // list little by little during connect/invoke. It doesn't immediately + // remove disconnected slots from the slot list since other threads + // might be using the same slot list concurrently. It might be + // possible to make it immediately reset the shared_ptr owning the + // slot though, leaving an empty shared_ptr in the slot list, since + // that wouldn't invalidate any iterators." + ensure("TempListener destroyed", ! live); + ensure("implicit disconnect", ! connection.connected()); #endif // 0 - // now just make sure we don't blow up trying to access a freed object! - heaptest.post(2); + // now just make sure we don't blow up trying to access a freed object! + heaptest.post(2); |*==========================================================================*/ - } - - class TempTrackableListener: public TempListener, public LLEventTrackable - { - public: - TempTrackableListener(const std::string& name, bool& liveFlag): - TempListener(name, liveFlag) - {} - }; - - template<> template<> - void events_object::test<13>() - { - set_test_name("listen(boost::bind(...TempTrackableListener ref...))"); - bool live = false; - LLEventPump& heaptest(pumps.obtain("heaptest")); - LLBoundListener connection; - { - TempTrackableListener tempListener("temp", live); - ensure("TempTrackableListener constructed", live); - connection = heaptest.listen(tempListener.getName(), - boost::bind(&TempTrackableListener::call, - boost::ref(tempListener), _1)); - heaptest.post(1); - check_listener("received", tempListener, 1); - } // presumably this will make tempListener go away? - // verify that - ensure("TempTrackableListener destroyed", ! live); - ensure("implicit disconnect", ! connection.connected()); - // now just make sure we don't blow up trying to access a freed object! - heaptest.post(2); - } - - template<> template<> - void events_object::test<14>() - { - set_test_name("listen(boost::bind(...TempTrackableListener pointer...))"); - bool live = false; - LLEventPump& heaptest(pumps.obtain("heaptest")); - LLBoundListener connection; - { - TempTrackableListener* newListener(new TempTrackableListener("temp", live)); - ensure("TempTrackableListener constructed", live); - connection = heaptest.listen(newListener->getName(), - boost::bind(&TempTrackableListener::call, - newListener, _1)); - heaptest.post(1); - check_listener("received", *newListener, 1); - // explicitly destroy newListener - delete newListener; - } - // verify that - ensure("TempTrackableListener destroyed", ! live); - ensure("implicit disconnect", ! connection.connected()); - // now just make sure we don't blow up trying to access a freed object! - heaptest.post(2); - } - - template<> template<> - void events_object::test<15>() - { - // This test ensures that using an LLListenerWrapper subclass doesn't - // block Boost.Signals2 from recognizing a bound LLEventTrackable - // subclass. - set_test_name("listen(llwrap<LLLogListener>(boost::bind(...TempTrackableListener ref...)))"); - bool live = false; - LLEventPump& heaptest(pumps.obtain("heaptest")); - LLBoundListener connection; - { - TempTrackableListener tempListener("temp", live); - ensure("TempTrackableListener constructed", live); - connection = heaptest.listen(tempListener.getName(), - llwrap<LLLogListener>( - boost::bind(&TempTrackableListener::call, - boost::ref(tempListener), _1))); - heaptest.post(1); - check_listener("received", tempListener, 1); - } // presumably this will make tempListener go away? - // verify that - ensure("TempTrackableListener destroyed", ! live); - ensure("implicit disconnect", ! connection.connected()); - // now just make sure we don't blow up trying to access a freed object! - heaptest.post(2); - } - - class TempSharedListener: public TempListener, - public boost::enable_shared_from_this<TempSharedListener> - { - public: - TempSharedListener(const std::string& name, bool& liveFlag): - TempListener(name, liveFlag) - {} - }; - - template<> template<> - void events_object::test<16>() - { - set_test_name("listen(boost::bind(...TempSharedListener ref...))"); +} + +class TempTrackableListener: public TempListener, public LLEventTrackable +{ +public: +TempTrackableListener(const std::string& name, bool& liveFlag): + TempListener(name, liveFlag) +{} +}; + +template<> template<> +void events_object::test<13>() +{ +set_test_name("listen(boost::bind(...TempTrackableListener ref...))"); +bool live = false; +LLEventPump& heaptest(pumps.obtain("heaptest")); +LLBoundListener connection; +{ + TempTrackableListener tempListener("temp", live); + ensure("TempTrackableListener constructed", live); + connection = heaptest.listen(tempListener.getName(), + boost::bind(&TempTrackableListener::call, + boost::ref(tempListener), _1)); + heaptest.post(1); + check_listener("received", tempListener, 1); +} // presumably this will make tempListener go away? +// verify that +ensure("TempTrackableListener destroyed", ! live); +ensure("implicit disconnect", ! connection.connected()); +// now just make sure we don't blow up trying to access a freed object! +heaptest.post(2); +} + +template<> template<> +void events_object::test<14>() +{ +set_test_name("listen(boost::bind(...TempTrackableListener pointer...))"); +bool live = false; +LLEventPump& heaptest(pumps.obtain("heaptest")); +LLBoundListener connection; +{ + TempTrackableListener* newListener(new TempTrackableListener("temp", live)); + ensure("TempTrackableListener constructed", live); + connection = heaptest.listen(newListener->getName(), + boost::bind(&TempTrackableListener::call, + newListener, _1)); + heaptest.post(1); + check_listener("received", *newListener, 1); + // explicitly destroy newListener + delete newListener; +} +// verify that +ensure("TempTrackableListener destroyed", ! live); +ensure("implicit disconnect", ! connection.connected()); +// now just make sure we don't blow up trying to access a freed object! +heaptest.post(2); +} + +template<> template<> +void events_object::test<15>() +{ +// This test ensures that using an LLListenerWrapper subclass doesn't +// block Boost.Signals2 from recognizing a bound LLEventTrackable +// subclass. +set_test_name("listen(llwrap<LLLogListener>(boost::bind(...TempTrackableListener ref...)))"); +bool live = false; +LLEventPump& heaptest(pumps.obtain("heaptest")); +LLBoundListener connection; +{ + TempTrackableListener tempListener("temp", live); + ensure("TempTrackableListener constructed", live); + connection = heaptest.listen(tempListener.getName(), + llwrap<LLLogListener>( + boost::bind(&TempTrackableListener::call, + boost::ref(tempListener), _1))); + heaptest.post(1); + check_listener("received", tempListener, 1); +} // presumably this will make tempListener go away? +// verify that +ensure("TempTrackableListener destroyed", ! live); +ensure("implicit disconnect", ! connection.connected()); +// now just make sure we don't blow up trying to access a freed object! +heaptest.post(2); +} + +class TempSharedListener: public TempListener, +public boost::enable_shared_from_this<TempSharedListener> +{ +public: +TempSharedListener(const std::string& name, bool& liveFlag): + TempListener(name, liveFlag) +{} +}; + +template<> template<> +void events_object::test<16>() +{ + set_test_name("listen(boost::bind(...TempSharedListener ref...))"); #if 0 - bool live = false; - LLEventPump& heaptest(pumps.obtain("heaptest")); - LLBoundListener connection; - { - // We MUST have at least one shared_ptr to an - // enable_shared_from_this subclass object before - // shared_from_this() can work. - boost::shared_ptr<TempSharedListener> - tempListener(new TempSharedListener("temp", live)); - ensure("TempSharedListener constructed", live); - // However, we're not passing either the shared_ptr or its - // corresponding weak_ptr -- instead, we're passing a reference to - // the TempSharedListener. +bool live = false; +LLEventPump& heaptest(pumps.obtain("heaptest")); +LLBoundListener connection; +{ + // We MUST have at least one shared_ptr to an + // enable_shared_from_this subclass object before + // shared_from_this() can work. + boost::shared_ptr<TempSharedListener> + tempListener(new TempSharedListener("temp", live)); + ensure("TempSharedListener constructed", live); + // However, we're not passing either the shared_ptr or its + // corresponding weak_ptr -- instead, we're passing a reference to + // the TempSharedListener. /*==========================================================================*| - std::cout << "Capturing const ref" << std::endl; - const boost::enable_shared_from_this<TempSharedListener>& cref(*tempListener); - std::cout << "Capturing const ptr" << std::endl; - const boost::enable_shared_from_this<TempSharedListener>* cp(&cref); - std::cout << "Capturing non-const ptr" << std::endl; - boost::enable_shared_from_this<TempSharedListener>* p(const_cast<boost::enable_shared_from_this<TempSharedListener>*>(cp)); - std::cout << "Capturing shared_from_this()" << std::endl; - boost::shared_ptr<TempSharedListener> sp(p->shared_from_this()); - std::cout << "Capturing weak_ptr" << std::endl; - boost::weak_ptr<TempSharedListener> wp(weaken(sp)); - std::cout << "Binding weak_ptr" << std::endl; + std::cout << "Capturing const ref" << std::endl; + const boost::enable_shared_from_this<TempSharedListener>& cref(*tempListener); + std::cout << "Capturing const ptr" << std::endl; + const boost::enable_shared_from_this<TempSharedListener>* cp(&cref); + std::cout << "Capturing non-const ptr" << std::endl; + boost::enable_shared_from_this<TempSharedListener>* p(const_cast<boost::enable_shared_from_this<TempSharedListener>*>(cp)); + std::cout << "Capturing shared_from_this()" << std::endl; + boost::shared_ptr<TempSharedListener> sp(p->shared_from_this()); + std::cout << "Capturing weak_ptr" << std::endl; + boost::weak_ptr<TempSharedListener> wp(weaken(sp)); + std::cout << "Binding weak_ptr" << std::endl; |*==========================================================================*/ - connection = heaptest.listen(tempListener->getName(), - boost::bind(&TempSharedListener::call, *tempListener, _1)); - heaptest.post(1); - check_listener("received", *tempListener, 1); - } // presumably this will make tempListener go away? - // verify that - ensure("TempSharedListener destroyed", ! live); - ensure("implicit disconnect", ! connection.connected()); - // now just make sure we don't blow up trying to access a freed object! - heaptest.post(2); + connection = heaptest.listen(tempListener->getName(), + boost::bind(&TempSharedListener::call, *tempListener, _1)); + heaptest.post(1); + check_listener("received", *tempListener, 1); +} // presumably this will make tempListener go away? +// verify that +ensure("TempSharedListener destroyed", ! live); +ensure("implicit disconnect", ! connection.connected()); +// now just make sure we don't blow up trying to access a freed object! +heaptest.post(2); #endif // 0 - } +} } // namespace tut |