On 2012-06-04 08:15, Koen Deforche wrote:
Hey Rutger,
We have several users using Wt with c++11, so that is not expected.
Your test-case works for me on MacOSX and Ubuntu Linux (gcc 4.4.3),
with boost 1.37 and boost 1.48, and using c++0x as C++ target.
What does valgrind say about the crashes you get ?
Regards,
koen
Hello Koen,
I'm compiling hello.C from the Wt examples, but from my own
(cmake-based) compilation environment, using g++ 4.7.0, boost 1.49, and
Wt 3.2.1,
/usr/bin/c++ -DBOOST_ASIO_DISABLE_MOVE -DQT_NO_KEYWORDS -DQT_NO_DEBUG
-DQT_GUI_LIB -DQT_CORE_LIB -I/usr/include/qt4 -I/usr/include/qt4/QtGui
-I/usr/include/qt4/QtCore -I/home/rutger/.../sandbox/wt -Wall
-std=c++0x -pedantic -Wno-long-long -g -o
CMakeFiles/hello_wt.dir/hello.C.o -c /home/rutger/.../sandbox/wt/hello.C
/usr/bin/c++ CMakeFiles/hello_wt.dir/hello.C.o -o hello_wt -rdynamic
-lwt -lwthttp -lboost_program_options-mt -lboost_signals-mt
-lboost_system-mt -lboost_thread-mt
the application starts, but the creation of the new WApplication crashes
due to connecting a signal. Also see the file attached.
The crash goes away when leaving out std=c++0x.
Regards,
Rutger
==8500== Memcheck, a memory error detector
==8500== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==8500== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==8500== Command: wt/hello_wt
==8500== Parent PID: 7560
==8500==
==8500== Thread 11:
==8500== Invalid read of size 8
==8500== at 0x5BF8BF0:
boost::signals::detail::named_slot_map::insert(boost::signals::detail::stored_group
const&, boost::signals::connection const&, boost::any const&,
boost::signals::connect_position) (in /usr/lib/libboost_signals.so.1.49.0)
==8500== by 0x5BFC545:
boost::signals::detail::signal_base_impl::connect_slot(boost::any const&,
boost::signals::detail::stored_group const&,
boost::shared_ptr<boost::signals::detail::slot_base::data_t>,
boost::signals::connect_position) (in /usr/lib/libboost_signals.so.1.49.0)
==8500== by 0x40EC82: boost::signal1<void, Wt::WMouseEvent,
boost::last_value<void>, int, std::less<int>, boost::function1<void,
Wt::WMouseEvent> >::connect(boost::slot<boost::function1<void, Wt::WMouseEvent>
> const&, boost::signals::connect_position) (signal_template.hpp:286)
==8500== by 0x40E525: boost::signals::connection
Wt::EventSignal<Wt::WMouseEvent>::connect<HelloApplication,
HelloApplication>(HelloApplication*, void (HelloApplication::*)())
(WSignal:1007)
==8500== by 0x40D375: HelloApplication::HelloApplication(Wt::WEnvironment
const&) (hello.C:63)
==8500== by 0x40D55D: createApplication(Wt::WEnvironment const&) (hello.C:93)
==8500== by 0x40FD6B:
boost::detail::function::function_invoker1<Wt::WApplication*
(*)(Wt::WEnvironment const&), Wt::WApplication*, Wt::WEnvironment
const&>::invoke(boost::detail::function::function_buffer&, Wt::WEnvironment
const&) (function_template.hpp:95)
==8500== by 0x52F985E:
Wt::WebController::doCreateApplication(Wt::WebSession*)
(function_template.hpp:760)
==8500== by 0x5304C12: Wt::WebSession::start() (WebSession.C:583)
==8500== by 0x530A314:
Wt::WebSession::handleRequest(Wt::WebSession::Handler&) (WebSession.C:1360)
==8500== by 0x52FCBCD: Wt::WebController::handleRequest(Wt::WebRequest*)
(WebController.C:612)
==8500== by 0x576097A: http::server::WtReply::consumeRequestBody(char
const*, char const*, http::server::Request::State) (WtReply.C:137)
==8500== Address 0xeeb0688 is not stack'd, malloc'd or (recently) free'd
==8500==
==8500== Invalid read of size 8
==8500== at 0x5BF8A7D:
boost::signals::detail::named_slot_map::insert(boost::signals::detail::stored_group
const&, boost::signals::connection const&, boost::any const&,
boost::signals::connect_position) (in /usr/lib/libboost_signals.so.1.49.0)
==8500== by 0x5BFC545:
boost::signals::detail::signal_base_impl::connect_slot(boost::any const&,
boost::signals::detail::stored_group const&,
boost::shared_ptr<boost::signals::detail::slot_base::data_t>,
boost::signals::connect_position) (in /usr/lib/libboost_signals.so.1.49.0)
==8500== by 0x40EC82: boost::signal1<void, Wt::WMouseEvent,
boost::last_value<void>, int, std::less<int>, boost::function1<void,
Wt::WMouseEvent> >::connect(boost::slot<boost::function1<void, Wt::WMouseEvent>
> const&, boost::signals::connect_position) (signal_template.hpp:286)
==8500== by 0x40E525: boost::signals::connection
Wt::EventSignal<Wt::WMouseEvent>::connect<HelloApplication,
HelloApplication>(HelloApplication*, void (HelloApplication::*)())
(WSignal:1007)
==8500== by 0x40D375: HelloApplication::HelloApplication(Wt::WEnvironment
const&) (hello.C:63)
==8500== by 0x40D55D: createApplication(Wt::WEnvironment const&) (hello.C:93)
==8500== by 0x40FD6B:
boost::detail::function::function_invoker1<Wt::WApplication*
(*)(Wt::WEnvironment const&), Wt::WApplication*, Wt::WEnvironment
const&>::invoke(boost::detail::function::function_buffer&, Wt::WEnvironment
const&) (function_template.hpp:95)
==8500== by 0x52F985E:
Wt::WebController::doCreateApplication(Wt::WebSession*)
(function_template.hpp:760)
==8500== by 0x5304C12: Wt::WebSession::start() (WebSession.C:583)
==8500== by 0x530A314:
Wt::WebSession::handleRequest(Wt::WebSession::Handler&) (WebSession.C:1360)
==8500== by 0x52FCBCD: Wt::WebController::handleRequest(Wt::WebRequest*)
(WebController.C:612)
==8500== by 0x576097A: http::server::WtReply::consumeRequestBody(char
const*, char const*, http::server::Request::State) (WtReply.C:137)
==8500== Address 0x98 is not stack'd, malloc'd or (recently) free'd
==8500==
==8500==
==8500== Process terminating with default action of signal 11 (SIGSEGV)
==8500== Access not within mapped region at address 0x98
==8500== at 0x5BF8A7D:
boost::signals::detail::named_slot_map::insert(boost::signals::detail::stored_group
const&, boost::signals::connection const&, boost::any const&,
boost::signals::connect_position) (in /usr/lib/libboost_signals.so.1.49.0)
==8500== by 0x5BFC545:
boost::signals::detail::signal_base_impl::connect_slot(boost::any const&,
boost::signals::detail::stored_group const&,
boost::shared_ptr<boost::signals::detail::slot_base::data_t>,
boost::signals::connect_position) (in /usr/lib/libboost_signals.so.1.49.0)
==8500== by 0x40EC82: boost::signal1<void, Wt::WMouseEvent,
boost::last_value<void>, int, std::less<int>, boost::function1<void,
Wt::WMouseEvent> >::connect(boost::slot<boost::function1<void, Wt::WMouseEvent>
> const&, boost::signals::connect_position) (signal_template.hpp:286)
==8500== by 0x40E525: boost::signals::connection
Wt::EventSignal<Wt::WMouseEvent>::connect<HelloApplication,
HelloApplication>(HelloApplication*, void (HelloApplication::*)())
(WSignal:1007)
==8500== by 0x40D375: HelloApplication::HelloApplication(Wt::WEnvironment
const&) (hello.C:63)
==8500== by 0x40D55D: createApplication(Wt::WEnvironment const&) (hello.C:93)
==8500== by 0x40FD6B:
boost::detail::function::function_invoker1<Wt::WApplication*
(*)(Wt::WEnvironment const&), Wt::WApplication*, Wt::WEnvironment
const&>::invoke(boost::detail::function::function_buffer&, Wt::WEnvironment
const&) (function_template.hpp:95)
==8500== by 0x52F985E:
Wt::WebController::doCreateApplication(Wt::WebSession*)
(function_template.hpp:760)
==8500== by 0x5304C12: Wt::WebSession::start() (WebSession.C:583)
==8500== by 0x530A314:
Wt::WebSession::handleRequest(Wt::WebSession::Handler&) (WebSession.C:1360)
==8500== by 0x52FCBCD: Wt::WebController::handleRequest(Wt::WebRequest*)
(WebController.C:612)
==8500== by 0x576097A: http::server::WtReply::consumeRequestBody(char
const*, char const*, http::server::Request::State) (WtReply.C:137)
==8500== If you believe this happened as a result of a stack
==8500== overflow in your program's main thread (unlikely but
==8500== possible), you can try to increase the size of the
==8500== main thread stack using the --main-stacksize= flag.
==8500== The main thread stack size used in this run was 8388608.
==8500==
==8500== HEAP SUMMARY:
==8500== in use at exit: 291,689 bytes in 4,691 blocks
==8500== total heap usage: 7,015 allocs, 2,324 frees, 847,634 bytes allocated
==8500==
==8500== LEAK SUMMARY:
==8500== definitely lost: 0 bytes in 0 blocks
==8500== indirectly lost: 0 bytes in 0 blocks
==8500== possibly lost: 31,680 bytes in 612 blocks
==8500== still reachable: 260,009 bytes in 4,079 blocks
==8500== suppressed: 0 bytes in 0 blocks
==8500== Rerun with --leak-check=full to see details of leaked memory
==8500==
==8500== For counts of detected and suppressed errors, rerun with: -v
==8500== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 18 from 6)
------------------------------------------------------------------------------
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