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[asio] question about binding member function as WaitHandler
by eburkitt＠gmail.com 05 Nov '08

05 Nov '08

The documentation's example 4 uses boost::bind to create a handler for deadline_timer::async_wait(). The function bound, printer::print(), takes no parameter and the code compiles and works fine. I tried modifying the example so that, instead of creating a new, temporary function object in place for each call to async_wait(), it creates a single boost::function object as a data member in the ctor, which is then passed in each call. Using MSVS 2005 and boost 1.37 I found that I had to add a boost::system::error_code& parameter to print() in order to get it to compile. Here is my modified printer class, with both the non-working (version 1) and working (version 2) code to, I hope, make this clearer. class printer { public: printer(boost::asio::io_service& io) : timer_(io, boost::posix_time::seconds(1)), // timer_fn_(boost::bind(&printer::print, this)), //**version 1 timer_fn_(boost::bind(&printer::print, this, _1)), //**version 2 count_(0) { timer_.async_wait(timer_fn_); } ~printer() { std::cout << "Final count is " << count_ << "\n"; } //void print() //**version 1 void print(const boost::system::error_code& /*e*/) //**version 2 { if (count_ < 5) { std::cout << count_ << "\n"; ++count_; timer_.expires_at(timer_.expires_at() + boost::posix_time::seconds(1)); timer_.async_wait(timer_fn_); } } private: //typedef boost::function<void(void)> timer_fn_type; //**version 1 typedef boost::function<void(const boost::system::error_code&)> timer_fn_type; //**version 2 boost::asio::deadline_timer timer_; timer_fn_type timer_fn_; int count_; }; The error report for version 1 is "term does not evaluate to a function taking 1 arguments" at boost/asio/detail/bind_handler.hpp line 39. I can see why version 1 won't compile. What I don't understand is why the original example, with its in-place function objects, does. Thanks for any insight. -evan

2 1

boost 1.37.0 problem with mpl
by Andrew Maclean 05 Nov '08

05 Nov '08

I successfully built release/debug versions and installed boost-1_37 under Windows Vista, Visual C++ 9.0 SP1. I use the following command: bjam --toolset=msvc --build-type=complete stage install However when I am using UBLAS, I get the following error: Error 1 fatal error C1083: Cannot open include file: 'boost/mpl/vector/aux_/preprocessed/plain/vector20.hpp': No such file or directory C:\Boost\include\boost-1_37\boost\mpl\vector\aux_\include_preprocessed.hpp 49 I checked 'boost/mpl/vector/aux_/preprocessed/plain/ and here is a listing of the files there: Directory of C:\Boost\include\boost-1_37\boost\mpl\vector\aux_\preprocessed\plain 05/11/2008 14:27 <DIR> . 05/11/2008 14:27 <DIR> .. 02/09/2004 11:41 19,378 vector10.hpp 28/11/2004 01:50 3,415 vector10_c.hpp 28/11/2004 01:50 6,556 vector20_c.hpp 02/09/2004 11:41 52,729 vector30.hpp 28/11/2004 01:50 9,747 vector30_c.hpp 02/09/2004 11:41 69,549 vector40.hpp 28/11/2004 01:50 12,937 vector40_c.hpp 02/09/2004 11:41 86,369 vector50.hpp 28/11/2004 01:50 16,136 vector50_c.hpp 10 File(s) 276,816 bytes As you can see, vector20.hpp is missing. Is tthis a legitimate problem or have I not built something correctly? Thanks for any help Andrew -- ___________________________________________ Andrew J. P. Maclean Centre for Autonomous Systems The Rose Street Building J04 The University of Sydney 2006 NSW AUSTRALIA Ph: +61 2 9351 3283 Fax: +61 2 9351 7474 URL: http://www.acfr.usyd.edu.au/ ___________________________________________

2 3

build boost library
by James Peng 05 Nov '08

05 Nov '08

Want to use Boost in our projects. We are using Fedora linux. I know Fedora has included Boost in its distribution but I plan to have my project only use the Boost lib included in my project resource tree but not the one included in the OS. That is I plan to have my project totally self-contained without any dependence on OS in terms of Boost lib. What's the right way to do that? Any input will be appreciated. thanks, James

2 1

boost.python / bjam
by Mark Williams 05 Nov '08

05 Nov '08

Hi, is it possible to build boost.python such that the python version gets embedded in the .so name along with the compiler name, version, multithread flags, etc? For example, "libboost_python25-gcc41-mt-1_35.so" instead of "libboost_python-gcc41-mt-1_35.so" Alternatively, is it possible to build it without the embedded SONAME so that it can be renamed afterwards? Thanks in advance, Mark

1 0

[serialization] Polymorphism?
by Robert Dailey 05 Nov '08

05 Nov '08

Hi, I have a class named Bar which derives from a class named Foo. Both Foo and Bar are serializable, and thus they both have the respective serialize() functions. However, if I do the following, you will not get a polymorphic call since you cannot have virtual template members in a class (The serialize() function must be a template according to the Boost.Serialization docs). Foo* f = new Bar; f->serialize(); Note that you wouldn't call serialize() directly like this, I'm simply doing it to prove a point. At some point Boost.Serialization is going to want to call the Serialize() function off of my Foo object, however it will not call Bar::serialize() as I would expect since I cannot make serialize() virtual. How would I provide polymorphic serialization of objects in Boost.Serialization? Thanks.

2 1

Building boost 1.37 (Regex with ICU) problem with MSVC9 x64
by KTC 04 Nov '08

04 Nov '08

Hi, I am unable to cleanly fully build boost 1.37 with ICU for regex for x64 on Windows with MSVC++ 2008. I first tried building with MSVS 2008 SP1 on Windows XP SP3 with ICU 4.0. Building x86 versions first, there were a number of link error, so I (copy & then) renamed icudt.lib, icuin.lib, icuind.lib, and icuind.pdb to icudata.lib & icui18n* as a comment suggested on a website I found via Google. That fixed the x86 errors. I did the same with the x64 ICU files, and try building, but got 4 link errors. D:\boost_1_37_0>bjam --without-mpi --toolset=msvc --build-dir=x64 --build-type=complete -sHAVE_ICU=1 -sICU_PATH="...." stage Because I had a few post-building error cross building ICU to x64 as it runs some build'd .exe that obviously can't run on x86 Windows, I preceeded to try building Boost.Regex on Windows XP x64 SP2 (running inside VMWare), again with MSVS 2008 SP1. Cleanly build ICU 4.0, copy & renamed the libs as above, before building: C:\boost_1_37_0>bjam --with-regex --toolset=msvc --build-type=complete -sHAVE_ICU=1 -sICU_PATH="C:\icu" stage The errors that resulted are essentially the same as before. Any help would be appericated. Thanks. KTC -------- WARNING: No python installation configured and autoconfiguration failed. See http://www.boost.org/libs/python/doc/building.html for configuration instructions or pass --without-python to suppress this message and silently skip all Boost.Python targets Note: Building Boost.Regex with Unicode/ICU support enabled Using ICU in C:\icu/include Skipping build of: ./stage <build>no in common properties Skipping build of: ./stage <build>no in common properties Skipping build of: ./stage <build>no in common properties Skipping build of: ./stage <build>no in common properties Skipping build of: libs/regex/build/icucore <build>no in common properties Skipping build of: libs/regex/build/icuin <build>no in common properties Skipping build of: libs/regex/build/icudata <build>no in common properties Skipping build of: libs/regex/build/icucore <build>no in common properties Skipping build of: libs/regex/build/icuin <build>no in common properties Skipping build of: libs/regex/build/icudata <build>no in common properties Skipping build of: libs/regex/build/icucore <build>no in common properties Skipping build of: libs/regex/build/icuin <build>no in common properties Skipping build of: libs/regex/build/icudata <build>no in common properties Skipping build of: libs/regex/build/icucore <build>no in common properties Skipping build of: libs/regex/build/icuin <build>no in common properties Skipping build of: libs/regex/build/icudata <build>no in common properties ...patience... ...found 704 targets... ...updating 10 targets... msvc.link.dll bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.dll Creating library bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.lib and object bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.exp icu.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __thiscall icu_4_0::Locale::~Locale(void)" (__imp_??1Locale@icu_4_0@@UAE@XZ) referenced in function __unwindfunclet$??0icu_regex_traits_implementation@re_detail@boost@@QAE@ABVLocale@icu_4_0@@@Z$0 icu.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static class icu_4_0::Collator * __cdecl icu_4_0::Collator::createInstance(class icu_4_0::Locale const &,enum UErrorCode &)" (__imp_?createInstance@Collator@icu_4_0@@SAPAV12@ABVLocale@2@AAW4UErrorCode@@@Z) referenced in function "public: __thiscall boost::re_detail::icu_regex_traits_implementation::icu_regex_traits_implementation(class icu_4_0::Locale const &)" (??0icu_regex_traits_implementation@re_detail@boost@@QAE@ABVLocale@icu_4_0@@@Z) icu.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall icu_4_0::Locale::Locale(class icu_4_0::Locale const &)" (__imp_??0Locale@icu_4_0@@QAE@ABV01@@Z) referenced in function "public: __thiscall boost::re_detail::icu_regex_traits_implementation::icu_regex_traits_implementation(class icu_4_0::Locale const &)" (??0icu_regex_traits_implementation@re_detail@boost@@QAE@ABVLocale@icu_4_0@@@Z) icu.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall icu_4_0::Locale::Locale(void)" (__imp_??0Locale@icu_4_0@@QAE@XZ) referenced in function "public: __thiscall boost::icu_regex_traits::icu_regex_traits(void)" (??0icu_regex_traits@boost@@QAE@XZ) icu.obj : error LNK2019: unresolved external symbol _u_tolower_4_0 referenced in function "public: unsigned __int64 __thiscall boost::icu_regex_traits::lookup_classname(int const *,int const *)const " (?lookup_classname@icu_regex_traits@boost@@QBE_KPBH0@Z) icu.obj : error LNK2019: unresolved external symbol _u_toupper_4_0 referenced in function "public: int __thiscall boost::icu_regex_traits::toupper(int)const " (?toupper@icu_regex_traits@boost@@QBEHH@Z) icu.obj : error LNK2019: unresolved external symbol _u_digit_4_0 referenced in function "public: bool __thiscall boost::icu_regex_traits::isctype(int,unsigned __int64)const " (?isctype@icu_regex_traits@boost@@QBE_NH_K@Z) icu.obj : error LNK2019: unresolved external symbol _u_isspace_4_0 referenced in function "public: unsigned __int64 __thiscall boost::icu_regex_traits::lookup_classname(int const *,int const *)const " (?lookup_classname@icu_regex_traits@boost@@QBE_KPBH0@Z) icu.obj : error LNK2019: unresolved external symbol _u_charFromName_4_0 referenced in function "public: class std::vector<int,class std::allocator<int> > __thiscall boost::icu_regex_traits::lookup_collatename(int const *,int const *)const " (?lookup_collatename@icu_regex_traits@boost@@QBE?AV?$vector@HV?$allocator@H@std@@@std@@PBH0@Z) icu.obj : error LNK2019: unresolved external symbol _u_isblank_4_0 referenced in function "public: bool __thiscall boost::icu_regex_traits::isctype(int,unsigned __int64)const " (?isctype@icu_regex_traits@boost@@QBE_NH_K@Z) icu.obj : error LNK2019: unresolved external symbol _u_charType_4_0 referenced in function "public: bool __thiscall boost::icu_regex_traits::isctype(int,unsigned __int64)const " (?isctype@icu_regex_traits@boost@@QBE_NH_K@Z) bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.dll : fatal error LNK1120: 11 unresolved externals call "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\vcvarsall.bat" x86 >nul link /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /subsystem:console /out:"bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.dll" /IMPLIB:"bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.lib" /LIBPATH:"C:\icu\lib" @"bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.dll.rsp" if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL% if exist "bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.dll.manifest" ( mt -nologo -manifest "bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.dll.manifest" "-outputresource:bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.dll;2" ) ...failed msvc.link.dll bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.dll bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.lib... ...removing bin.v2\libs\regex\build\msvc-9.0\debug\threading-multi\boost_regex-vc90-mt-gd-1_37.lib ...skipped <pstage\lib>boost_regex-vc90-mt-gd-1_37.dll for lack of <pbin.v2\libs\regex\build\msvc-9.0\debug\threading-multi>boost_regex-vc90-mt-gd-1_37.dll... ...skipped <pstage\lib>boost_regex-vc90-mt-gd-1_37.lib for lack of <pbin.v2\libs\regex\build\msvc-9.0\debug\threading-multi>boost_regex-vc90-mt-gd-1_37.lib... ...skipped <pstage\lib>boost_regex-vc90-mt-gd.lib for lack of <pstage\lib>boost_regex-vc90-mt-gd-1_37.lib... msvc.link.dll bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.dll Creating library bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.lib and object bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.exp icu.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall icu_4_0::Locale::Locale(class icu_4_0::Locale const &)" (__imp_??0Locale@icu_4_0@@QAE@ABV01@@Z) referenced in function "public: class icu_4_0::Locale __thiscall boost::re_detail::icu_regex_traits_implementation::getloc(void)const " (?getloc@icu_regex_traits_implementation@re_detail@boost@@QBE?AVLocale@icu_4_0@@XZ) icu.obj : error LNK2019: unresolved external symbol _u_tolower_4_0 referenced in function "public: int __thiscall boost::icu_regex_traits::translate_nocase(int)const " (?translate_nocase@icu_regex_traits@boost@@QBEHH@Z) icu.obj : error LNK2019: unresolved external symbol _u_toupper_4_0 referenced in function "public: int __thiscall boost::icu_regex_traits::toupper(int)const " (?toupper@icu_regex_traits@boost@@QBEHH@Z) icu.obj : error LNK2019: unresolved external symbol _u_digit_4_0 referenced in function "public: int __thiscall boost::icu_regex_traits::value(int,int)const " (?value@icu_regex_traits@boost@@QBEHHH@Z) icu.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall icu_4_0::Locale::Locale(void)" (__imp_??0Locale@icu_4_0@@QAE@XZ) referenced in function "public: class icu_4_0::Locale __thiscall boost::icu_regex_traits::getloc(void)const " (?getloc@icu_regex_traits@boost@@QBE?AVLocale@icu_4_0@@XZ) icu.obj : error LNK2019: unresolved external symbol _u_isspace_4_0 referenced in function "public: bool __thiscall boost::icu_regex_traits::isctype(int,unsigned __int64)const " (?isctype@icu_regex_traits@boost@@QBE_NH_K@Z) icu.obj : error LNK2019: unresolved external symbol _u_isblank_4_0 referenced in function "public: bool __thiscall boost::icu_regex_traits::isctype(int,unsigned __int64)const " (?isctype@icu_regex_traits@boost@@QBE_NH_K@Z) icu.obj : error LNK2019: unresolved external symbol _u_charType_4_0 referenced in function "public: bool __thiscall boost::icu_regex_traits::isctype(int,unsigned __int64)const " (?isctype@icu_regex_traits@boost@@QBE_NH_K@Z) icu.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __thiscall icu_4_0::Locale::~Locale(void)" (__imp_??1Locale@icu_4_0@@UAE@XZ) referenced in function "public: __thiscall boost::re_detail::icu_regex_traits_implementation::~icu_regex_traits_implementation(void)" (??1icu_regex_traits_implementation@re_detail@boost@@QAE@XZ) icu.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static class icu_4_0::Collator * __cdecl icu_4_0::Collator::createInstance(class icu_4_0::Locale const &,enum UErrorCode &)" (__imp_?createInstance@Collator@icu_4_0@@SAPAV12@ABVLocale@2@AAW4UErrorCode@@@Z) referenced in function "public: __thiscall boost::re_detail::icu_regex_traits_implementation::icu_regex_traits_implementation(class icu_4_0::Locale const &)" (??0icu_regex_traits_implementation@re_detail@boost@@QAE@ABVLocale@icu_4_0@@@Z) icu.obj : error LNK2019: unresolved external symbol _u_charFromName_4_0 referenced in function "public: class std::vector<int,class std::allocator<int> > __thiscall boost::icu_regex_traits::lookup_collatename(int const *,int const *)const " (?lookup_collatename@icu_regex_traits@boost@@QBE?AV?$vector@HV?$allocator@H@std@@@std@@PBH0@Z) bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.dll : fatal error LNK1120: 11 unresolved externals call "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\vcvarsall.bat" x86 >nul link /NOLOGO /INCREMENTAL:NO /DLL /subsystem:console /out:"bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.dll" /IMPLIB:"bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.lib" /LIBPATH:"C:\icu\lib" @"bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.dll.rsp" if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL% if exist "bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.dll.manifest" ( mt -nologo -manifest "bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.dll.manifest" "-outputresource:bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.dll;2" ) ...failed msvc.link.dll bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.dll bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.lib... ...removing bin.v2\libs\regex\build\msvc-9.0\release\threading-multi\boost_regex-vc90-mt-1_37.lib ...skipped <pstage\lib>boost_regex-vc90-mt-1_37.dll for lack of <pbin.v2\libs\regex\build\msvc-9.0\release\threading-multi>boost_regex-vc90-mt-1_37.dll... ...skipped <pstage\lib>boost_regex-vc90-mt-1_37.lib for lack of <pbin.v2\libs\regex\build\msvc-9.0\release\threading-multi>boost_regex-vc90-mt-1_37.lib... ...skipped <pstage\lib>boost_regex-vc90-mt.lib for lack of <pstage\lib>boost_regex-vc90-mt-1_37.lib... ...failed updating 4 targets... ...skipped 6 targets... -- Experience is a good school but the fees are high. - Heinrich Heine

1 1

[spirit][iterator] position_iterator regression in 1.37.0
by Rainer Deyke 04 Nov '08

04 Nov '08

When using this type: boost::spirit::position_iterator<std::string::const_iterator> I get a static assertion failure: ..\..\lib\boost_1_37_0\boost/iterator/iterator_adaptor.hpp(230) : error C2027: u se of undefined type 'boost::STATIC_ASSERTION_FAILURE<x>' with [ x=false ] ..\..\lib\boost_1_37_0\boost/iterator/iterator_adaptor.hpp(335) : see re ference to function template instantiation 'void boost::detail::iterator_adaptor _assert_traversal<boost::forward_traversal_tag,boost::random_access_traversal_ta g>(void)' being compiled ..\..\lib\boost_1_37_0\boost/iterator/iterator_adaptor.hpp(334) : while compiling class template member function 'void boost::iterator_adaptor<Derived,B ase,Value,Traversal>::advance(__w64 int)' with [ Derived=boost::spirit::position_iterator<std::_String_const_iterator <char,std::char_traits<char>,std::allocator<char>>>, Base=std::_String_const_iterator<char,std::char_traits<char>,std::al locator<char>>, Value=const char, Traversal=boost::forward_traversal_tag ] ..\..\lib\boost_1_37_0\boost/spirit/home/classic/iterator/position_itera tor.hpp(156) : see reference to class template instantiation 'boost::iterator_ad aptor<Derived,Base,Value,Traversal>' being compiled with [ Derived=boost::spirit::position_iterator<std::_String_const_iterator <char,std::char_traits<char>,std::allocator<char>>>, Base=std::_String_const_iterator<char,std::char_traits<char>,std::al locator<char>>, Value=const char, Traversal=boost::forward_traversal_tag ] source/eldwood/core/lexer.cpp(81) : see reference to class template inst antiation 'boost::spirit::position_iterator<ForwardIteratorT>' being compiled with [ ForwardIteratorT=std::_String_const_iterator<char,std::char_traits<c har>,std::allocator<char>> ] This is triggered on a simple function declaration taking a position_iterator as argument, using MSVC8.0 Express on Windows XP. It worked under Boost 1.36.0. -- Rainer Deyke - rainerd(a)eldwood.com

2 2

Boost.MPI problems with non-PODs
by Steve Nolen 04 Nov '08

04 Nov '08

I am having some problems getting boost::mpi working with our local installation of openmpi 1.2.3 here at Los Alamos. I am able to send POD's through the interface, but it fails sending anything more complicated (i.e. std::string). Have I missed some step in the process? I get the following error when I tried the 2nd example from the on-line Tutorial ... terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::mpi::exception> >' what(): MPI_Alloc_mem: MPI_ERR_NO_MEM: out of memory Also, I was unable to build a single threaded version of libboost_mpi which struck me as odd. Any assistance would be greatly appreciated. compiler: g++ (GCC) 3.4.5 20051201 (Red Hat 3.4.5-2) Using... /usr/projects/mcatk/packages/lib/libboost_mpi-gcc34-mt-1_36.so.1.36.0

1 0

[ASIO] Thread safety of socket.write_some & socket.read_some
by James12 04 Nov '08

04 Nov '08

Hi, I'm a beginner in using boost asio library (and coding c++ too :). I am currently trying to code a simple application that handles some communication with a server through TCP/IP connection. My I/O Class has two threads that use synchronous socket operations on the same socket (which is a member of the class) Main thread: CApplication::Close() - socket.close() CApplication::Open() - socket.open(boost::asio::ip::tcp::v4()); - socket.write_some(boost::asio::buffer(initial_command)); - socket.read_some(boost::asio::buffer(initial_command_reply)); CApplication::Write(data from another class) - m_Socket.write_some Workerthread: CApplication::thread_Run() do { - socket.read_some(boost::asio::buffer((void *)&character, 1)); - package bytes to messages and pass them on to another class } while (!bClosed) My question is that is it safe to call write_some and read_some from different threads without synchronization. The application is now working w/o problems but I need to be sure that this is a safe way to do this before continuing development. Thanks for your reply, James -- View this message in context: http://www.nabble.com/-ASIO--Thread-safety-of-socket.write_some---socket.re… Sent from the Boost - Users mailing list archive at Nabble.com.

2 6

[asio] synchronous mode, timeouts and boost::thread
by Ovanes Markarian 04 Nov '08

04 Nov '08

Hello *, asio (at least in boost release 1.35) does not support timeouts on synchronous socket operations. What happens if I start a sync read operation from a separate boost thread and interrupt the thread after some certain period of time? This worked fine with gcc 4.3 on a 32 bit Gentoo Linux, but I would like to know if this is a bad style to make so. I understand that a thread must be in one of the interruptable states. Many thanks, Ovanes Markarian

1 0