- Boost-users - lists.preview.boost.org

thread problem
by Kraus Philipp 27 Nov '10

27 Nov '10

Hello, I have some problems with a thread call. I have a call with a method in that should create a thread: void myclass::mymethod( void ) { boost::thread l_thread( boost::bind( &myclass::threadrun, this ) ); l_thread.join(); <= this blocks } My threadrun method shows: void myclass:threadrun( void ) { while (m_listenerrunnging) { boost::this_thread::yield(); } } The join starts the threadrun method but it blocks the main run. I have got a class which should create only one thread (in itsself), that should run until the class is destroyed. The threadrun method reads some data at a network device in asychron calls, so the threadrun can sleep during running. How can I do this in a correct way? Thx Phil

3 4

BOOST fylesystem and staic library
by Claude 27 Nov '10

27 Nov '10

Hi! I am making a static library (.a under Linux and .lib under Windows) and the functions of my library using the capabilities of boost::filesystem. My problem is that when I link my static library to my programs, the linker (I use the MSVC 2010EE on Windows), reports an error because it not find the static libraryof boost::filesystem!! I thought it was enough to link it to my static library.... What's wrong? -- View this message in context: http://boost.2283326.n4.nabble.com/BOOST-fylesystem-and-staic-library-tp305… Sent from the Boost - Users mailing list archive at Nabble.com.

2 2

[boost-users] Compiling boost (4-way) 1.44.0 on MAC
by Samir Kharchi 27 Nov '10

27 Nov '10

Hi, I am trying to build a static library version of boost 1.44.0 on MAC OSX 10.5.8 (XCode 3.1.4) using bjam for the architectures ppc, ppc64, x86_64,i386. It builts everything just fine but I never get all architectures included. There is always at least one architecture missing. My command is: bjam toolset=darwin architecture=combined link=static threading=multi variant=release address-model=32_64 I searched the web and didn´t find anything appropriate (most is for xcode 3.2 and leopard) so I am asking in here if anybody has a clue how to get this done. :-/ Thanks in advance Samir

2 7

Novice build experience.
by Robert Jones 26 Nov '10

26 Nov '10

Although I've been using Boost for quite a while I am now building it from source for the first time (under Fedora13, 32 bit if it matters). I'm getting lots of messsages about things being skipped for lack of /usr/local/include/boost. As far as I can tell this is correct and normal - is that right? Thx, - Rob.

2 1

[Bug Sprint] The November bug sprint starts tomorrow!
by Marshall Clow 26 Nov '10

26 Nov '10

The Boost bug sprint starts tomorrow Saturday, November 27, 2010 and runs through Sunday December 5th. The goal of the bug sprint is to make Boost better; the way we measure this is to look at the open tickets in the Trac system. In the last bug sprint (back in June), we closed over 200 tickets. However, in the past five months, the number of open tickets has crept back up, so that we once again have more than 900 open tickets. (the count was down under 800 at the end of the previous sprint). General information about the bug sprint is here: https://svn.boost.org/trac/boost/wiki/BugSprintNov2010 General information about how the Trac system works is here: https://svn.boost.org/trac/boost/wiki/TicketWorkflow Useful reports: https://svn.boost.org/trac/boost/report/1 -- full list of tickets https://svn.boost.org/trac/boost/report/18 -- ticket counts by owner https://svn.boost.org/trac/boost/report/19 -- ticket counts by component https://svn.boost.org/trac/boost/report/20 -- ticket counts by ticket type https://svn.boost.org/trac/boost/report/21 -- ticket counts by milestone -- Marshall

2 1

thread warning ununsed variable
by Kraus Philipp 26 Nov '10

26 Nov '10

Hi, On Boost 1.45 I get a warning message in the condition_variable.hpp inline void condition_variable::wait(unique_lock<mutex>& m) { thread_cv_detail::lock_on_exit<unique_lock<mutex> > guard; detail::interruption_checker check_for_interruption(&internal_mutex,&cond); guard.activate(m); int const res=pthread_cond_wait(&cond,&internal_mutex); BOOST_ASSERT(!res); this_thread::interruption_point(); } the res variable isn't used (I compile the code with -O2 option) Have a nice day Phil

3 2

[1.45.0] PDF build of documentation available
by John Maddock 26 Nov '10

26 Nov '10

The PDF build of the documentation for Boost-1.45 is now available for download from https://sourceforge.net/projects/boost/files/boost-docs/1.45.0/ Enjoy, John Maddock.

1 0

boost serialisation 1.45 portable binary archive fails for -1 on AIX
by Avi Bahra 26 Nov '10

26 Nov '10

//================ Main.cpp ========================= // This example demonstrates a bug in portable binary format on AIX when serialising -1 // that is specific only to the AIX compiler/platform // (i.e HPUX/Acc and linux/gcc run without any problems) // However on AIX on the restore, an exception is thrown // in load_impl(..) // // This test consists of 1 files // 1/ Main.cpp // // It appears that when restoring an integer of value -1, it binds to: // // void load(T & t){ // boost::intmax_t l; // load_impl(l, sizeof(T)); // // use cast to avoid compile time warning // //t = static_cast< T >(l); // t = T(l); // } // // void load_impl(boost::intmax_t & l, char maxsize); // // This appears to be the wrong load as the signature of load_impl() // will lead to truncation ! // //2/ Note: You will need to pull out and compile the portable // binary archive from the boost serialisation example dir. with this file #include <sstream> #include <ostream> #include <iostream> #include <fstream> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/archive/text_oarchive.hpp> #include "portable_binary_oarchive.hpp" #include "portable_binary_iarchive.hpp" #include <boost/serialization/serialization.hpp> using namespace std; void save(const std::string& fileName, const int& ts, bool textArchive) { if ( textArchive ) std::cout << "Text archive Saving " << ts ; else std::cout << "portable binary archive Saving " << ts; try { if (textArchive) { std::ofstream ofs( "fred.txt" ); boost::archive::text_oarchive ar( ofs ); ar << ts; } else { std::ofstream ofs( fileName.c_str(), ios::binary ); portable_binary_oarchive ar(ofs); ar << ts; } std::cout << " OK \n"; } catch (const boost::archive::archive_exception& ae) { std::cout << " save " << fileName << " failed. boost::archive exception " << ": " << ae.what() << std::endl; } } void restore(const std::string& fileName, int& restored, bool textArchive) { if ( textArchive ) std::cout << "Text archive Restoring "; else std::cout << "portable binary archive Restoring " ; try { if ( textArchive ) { std::ifstream ifs( fileName.c_str() ); boost::archive::text_iarchive ar( ifs ); ar >> restored; } else { std::ifstream ifs( fileName.c_str(), ios::binary ); portable_binary_iarchive ar( ifs ); ar >> restored; } std::cout << restored << " OK \n"; } catch ( const boost::archive::archive_exception& ae ) { std::cout << " restore " << fileName << " failed. boost::archive exception " << ": " << ae.what() << std::endl; } } int main() { { int saved = -1; save("fred.txt",saved,true); int restored = 44; restore("fred.txt",restored,true); assert(saved == restored); } { int saved = -1; save("fred.txt",saved,false); int restored = 44; restore("fred.txt",restored,false); assert(saved == restored); } return 0; }

1 0

boost filesystem temp_dir
by Kraus Philipp 26 Nov '10

26 Nov '10

Hello, I've found on the mailinglist a posting of Jeff Flinn (2010-10-12), that the Boost Filesystem gets a method for reading the temporary directory of the OS. The call should be boost::filesystem::temp_dir_path() I try to use the code with the 1.45 release, but I get compiler errors (not found). In the documentation I don't found anything else. If the code is inserted in the 1:45 version and how can I use it then? Thx Phil

1 0

valgrind leak detector with boost serialization
by Oscar Pernas 26 Nov '10

26 Nov '10

Hi all, Im using boost serialization to serialize a base class and his derived classes. Like this: ParameterList is a list of parameters and parameters could be different types of parameters (string, blah blah blah). Im serializing well, and everything is going fine but with valdrind I can see a leak and i dont know why, because the way of I am serializing into the file is the same that is made in the tutorial. Like this: // create and open a character archive for output std::ofstream ofs(dataFilename.str().c_str(), std::ios::binary | std::ios::app); boost::archive::binary_oarchive persistenceFile(ofs); persistenceFile << activeMessage; logMessage << "Object serialized :" << activeMessage.getText() << "in position " << lastWrote; Valgrind shows me this information: =6208== 2,200 (2,000 direct, 200 indirect) bytes in 100 blocks are definitely lost in loss record 3 of 7 ==6208== at 0x40243C5: operator new(unsigned int) (vg_replace_malloc.c:214) ==6208== by 0x41201E3: boost::archive::detail::heap_allocator<BytesParameter>::doesnt_have_new_operator::invoke() (iserializer.hpp:247) ==6208== by 0x411FBAE: boost::archive::detail::heap_allocator<BytesParameter>::invoke() (iserializer.hpp:257) ==6208== by 0x411EC94: boost::archive::detail::pointer_iserializer<boost::archive::binary_iarchive, BytesParameter>::load_object_ptr(boost::archive::detail::basic_iarchive&, void*&, unsigned int) const (iserializer.hpp:299) ==6208== by 0x4C9879B: boost::archive::detail::basic_iarchive::load_pointer(void*&, boost::archive::detail::basic_pointer_iserializer const*, boost::archive::detail::basic_pointer_iserializer const* (*)(boost::serialization::extended_type_info const&)) (in /usr/lib/libboost_serialization.so.1.42.0) ==6208== by 0x412728D: void boost::archive::detail::load_pointer_type<boost::archive::binary_iarchive>::invoke<Parameter*>(boost::archive::binary_iarchive&, Parameter*&) (iserializer.hpp:512) ==6208== by 0x4127216: void boost::archive::load<boost::archive::binary_iarchive, Parameter*>(boost::archive::binary_iarchive&, Parameter*&) (iserializer.hpp:580) ==6208== by 0x41271D5: void boost::archive::detail::common_iarchive<boost::archive::binary_iarchive>::load_override<Parameter*>(Parameter*&, int) (common_iarchive.hpp:68) ==6208== by 0x4127190: void boost::archive::basic_binary_iarchive<boost::archive::binary_iarchive>::load_override<Parameter*>(Parameter*&, int) (basic_binary_iarchive.hpp:67) ==6208== by 0x412714D: void boost::archive::binary_iarchive_impl<boost::archive::binary_iarchive, char, std::char_traits<char> >::load_override<Parameter*>(Parameter*&, int) (binary_iarchive_impl.hpp:50) ==6208== by 0x41270D1: boost::archive::binary_iarchive& boost::archive::detail::interface_iarchive<boost::archive::binary_iarchive>::operator>><Parameter*>(Parameter*&) (interface_iarchive.hpp:61) ==6208== by 0x412704B: void boost::serialization::nvp<Parameter*>::load<boost::archive::binary_iarchive>(boost::archive::binary_iarchive&, unsigned int) (nvp.hpp:87) ==6208== ==6208== 2,400 bytes in 200 blocks are definitely lost in loss record 4 of 7 ==6208== at 0x40243C5: operator new(unsigned int) (vg_replace_malloc.c:214) ==6208== by 0x412022D: boost::archive::detail::heap_allocator<RealParameter>::doesnt_have_new_operator::invoke() (iserializer.hpp:247) ==6208== by 0x411FC8E: boost::archive::detail::heap_allocator<RealParameter>::invoke() (iserializer.hpp:257) ==6208== by 0x411EDF0: boost::archive::detail::pointer_iserializer<boost::archive::binary_iarchive, RealParameter>::load_object_ptr(boost::archive::detail::basic_iarchive&, void*&, unsigned int) const (iserializer.hpp:299) ==6208== by 0x4C9879B: boost::archive::detail::basic_iarchive::load_pointer(void*&, boost::archive::detail::basic_pointer_iserializer const*, boost::archive::detail::basic_pointer_iserializer const* (*)(boost::serialization::extended_type_info const&)) (in /usr/lib/libboost_serialization.so.1.42.0) ==6208== by 0x412728D: void boost::archive::detail::load_pointer_type<boost::archive::binary_iarchive>::invoke<Parameter*>(boost::archive::binary_iarchive&, Parameter*&) (iserializer.hpp:512) ==6208== by 0x4127216: void boost::archive::load<boost::archive::binary_iarchive, Parameter*>(boost::archive::binary_iarchive&, Parameter*&) (iserializer.hpp:580) ==6208== by 0x41271D5: void boost::archive::detail::common_iarchive<boost::archive::binary_iarchive>::load_override<Parameter*>(Parameter*&, int) (common_iarchive.hpp:68) ==6208== by 0x4127190: void boost::archive::basic_binary_iarchive<boost::archive::binary_iarchive>::load_override<Parameter*>(Parameter*&, int) (basic_binary_iarchive.hpp:67) ==6208== by 0x412714D: void boost::archive::binary_iarchive_impl<boost::archive::binary_iarchive, char, std::char_traits<char> >::load_override<Parameter*>(Parameter*&, int) (binary_iarchive_impl.hpp:50) ==6208== by 0x41270D1: boost::archive::binary_iarchive& boost::archive::detail::interface_iarchive<boost::archive::binary_iarchive>::operator>><Parameter*>(Parameter*&) (interface_iarchive.hpp:61) ==6208== by 0x412704B: void boost::serialization::nvp<Parameter*>::load<boost::archive::binary_iarchive>(boost::archive::binary_iarchive&, unsigned int) (nvp.hpp:87) ==6208== ==6208== 3,600 bytes in 300 blocks are definitely lost in loss record 5 of 7 ==6208== at 0x40243C5: operator new(unsigned int) (vg_replace_malloc.c:214) ==6208== by 0x4120199: boost::archive::detail::heap_allocator<IntParameter>::doesnt_have_new_operator::invoke() (iserializer.hpp:247) ==6208== by 0x411FA6E: boost::archive::detail::heap_allocator<IntParameter>::invoke() (iserializer.hpp:257) ==6208== by 0x411EB38: boost::archive::detail::pointer_iserializer<boost::archive::binary_iarchive, IntParameter>::load_object_ptr(boost::archive::detail::basic_iarchive&, void*&, unsigned int) const (iserializer.hpp:299) ==6208== by 0x4C9879B: boost::archive::detail::basic_iarchive::load_pointer(void*&, boost::archive::detail::basic_pointer_iserializer const*, boost::archive::detail::basic_pointer_iserializer const* (*)(boost::serialization::extended_type_info const&)) (in /usr/lib/libboost_serialization.so.1.42.0) ==6208== by 0x412728D: void boost::archive::detail::load_pointer_type<boost::archive::binary_iarchive>::invoke<Parameter*>(boost::archive::binary_iarchive&, Parameter*&) (iserializer.hpp:512) ==6208== by 0x4127216: void boost::archive::load<boost::archive::binary_iarchive, Parameter*>(boost::archive::binary_iarchive&, Parameter*&) (iserializer.hpp:580) ==6208== by 0x41271D5: void boost::archive::detail::common_iarchive<boost::archive::binary_iarchive>::load_override<Parameter*>(Parameter*&, int) (common_iarchive.hpp:68) ==6208== by 0x4127190: void boost::archive::basic_binary_iarchive<boost::archive::binary_iarchive>::load_override<Parameter*>(Parameter*&, int) (basic_binary_iarchive.hpp:67) ==6208== by 0x412714D: void boost::archive::binary_iarchive_impl<boost::archive::binary_iarchive, char, std::char_traits<char> >::load_override<Parameter*>(Parameter*&, int) (binary_iarchive_impl.hpp:50) ==6208== by 0x41270D1: boost::archive::binary_iarchive& boost::archive::detail::interface_iarchive<boost::archive::binary_iarchive>::operator>><Parameter*>(Parameter*&) (interface_iarchive.hpp:61) ==6208== by 0x412704B: void boost::serialization::nvp<Parameter*>::load<boost::archive::binary_iarchive>(boost::archive::binary_iarchive&, unsigned int) (nvp.hpp:87) ==6208== ==6208== 10,300 (3,600 direct, 6,700 indirect) bytes in 300 blocks are definitely lost in loss record 7 of 7 ==6208== at 0x40243C5: operator new(unsigned int) (vg_replace_malloc.c:214) ==6208== by 0x4120277: boost::archive::detail::heap_allocator<StringParameter>::doesnt_have_new_operator::invoke() (iserializer.hpp:247) ==6208== by 0x411FD6E: boost::archive::detail::heap_allocator<StringParameter>::invoke() (iserializer.hpp:257) ==6208== by 0x411EF4C: boost::archive::detail::pointer_iserializer<boost::archive::binary_iarchive, StringParameter>::load_object_ptr(boost::archive::detail::basic_iarchive&, void*&, unsigned int) const (iserializer.hpp:299) ==6208== by 0x4C9879B: boost::archive::detail::basic_iarchive::load_pointer(void*&, boost::archive::detail::basic_pointer_iserializer const*, boost::archive::detail::basic_pointer_iserializer const* (*)(boost::serialization::extended_type_info const&)) (in /usr/lib/libboost_serialization.so.1.42.0) ==6208== by 0x412728D: void boost::archive::detail::load_pointer_type<boost::archive::binary_iarchive>::invoke<Parameter*>(boost::archive::binary_iarchive&, Parameter*&) (iserializer.hpp:512) ==6208== by 0x4127216: void boost::archive::load<boost::archive::binary_iarchive, Parameter*>(boost::archive::binary_iarchive&, Parameter*&) (iserializer.hpp:580) ==6208== by 0x41271D5: void boost::archive::detail::common_iarchive<boost::archive::binary_iarchive>::load_override<Parameter*>(Parameter*&, int) (common_iarchive.hpp:68) ==6208== by 0x4127190: void boost::archive::basic_binary_iarchive<boost::archive::binary_iarchive>::load_override<Parameter*>(Parameter*&, int) (basic_binary_iarchive.hpp:67) ==6208== by 0x412714D: void boost::archive::binary_iarchive_impl<boost::archive::binary_iarchive, char, std::char_traits<char> >::load_override<Parameter*>(Parameter*&, int) (binary_iarchive_impl.hpp:50) ==6208== by 0x41270D1: boost::archive::binary_iarchive& boost::archive::detail::interface_iarchive<boost::archive::binary_iarchive>::operator>><Parameter*>(Parameter*&) (interface_iarchive.hpp:61) ==6208== by 0x412704B: void boost::serialization::nvp<Parameter*>::load<boost::archive::binary_iarchive>(boost::archive::binary_iarchive&, unsigned int) (nvp.hpp:87) what could be? any idea? regards! -- Óscar Pernas Plaza.

1 0