On Thu, 2009-10-22 at 06:39 -0700, bpmuser wrote: > I've been working with the ActiveMq-Cpp interface through a dll in windows > and I think I've fallen into stl-dll hell. > > I was attempting to use: > > MapMessage.h : virtual std::vector< std::string > getMapNames() const throw( > CMSException ) = 0; > or > Message.h: virtual std::vector<std::string> getPropertyNames() const throw( > CMSException ) = 0; > > I started getting crashes whenever the returned vector fell out of scope. I > think this is related to stl and dll's not playing nicely with memory > management. If this is the cause of the problem then I see two possible > solutions (unless there is a more friendly way to access the map already). > > 1) Rework the functions > > MapMessage.h : virtual void getMapNames(std::vector< std::string >&) const > throw( CMSException ) = 0; > or > Message.h: virtual getPropertyNames(std::vector< std::string >&) const > throw( CMSException ) = 0; > > But I've never tested this so I'm not sure if it work properly, or if you > still have the same problem. > > 2) Add accessory functions > > MapMessage.h : virtual size_t getMapNameCount() const throw( CMSException ) > = 0; > and > MapMessage.h : virtual std::string getMapName(size_t) const throw( > CMSException ) = 0; > or > MapMessage.h : virtual void getMapName(size_t, std::string &) const throw( > CMSException ) = 0; > > I've never taken on this problem before so I have no clue what would work. > Any insight would be really appreciated. >
Have you ensured that the application is linked against the same version the runtime library as the DLL? ActiveMQ-CPP requires your application to use the Multithreaded DLL Runtime Library, Debug or Release depending on which AMQCPP dll you are using. Regards Tim. -- Tim Bish http://fusesource.com http://timbish.blogspot.com/
