jeti wrote:

i try to create a class which helps me manage my resources usage it only gets function arguments and a boost::function on construction and this function is called with the given arguments during destruction

the constructor currently looks like this template<typename T,typename R> Callback(boost::function<T (R)>,R arg1);

so this would be great template<typename T,typename R,...> Callback(boost::function<T (R,...)>,R arg1,....);

which i dont know how to achive or if this can easily be done using current c++ standard any alternative/creative suggestions on this would be great

? To me it looks as if you're home free. The following builds and runs and produces the result I expect: #include <iostream> #include <boost/function.hpp> #include <boost/bind.hpp> // doesn't need to be a template class Callback { typedef boost::function<void()> function_type; public: Callback(const function_type& func): mFunc(func) {} ~Callback() { mFunc(); } private: function_type mFunc; }; // example cleanup function requiring args void cleanup(const std::string& message) { std::cout << message << std::endl; } int main(int argc, char* argv[]) { Callback myCallback(boost::bind(cleanup, "Going out of scope now!")); return 0; } If I've misunderstood some part of your problem, please forgive me.

Nat Goodspeed wrote:

jeti wrote:

...

i try to create a class which helps me manage my resources usage it only gets function arguments and a boost::function on construction and this function is called with the given arguments during destruction

I should also have mentioned the recently-approved scope_exit library: http://svn.boost.org/svn/boost/trunk/libs/scope_exit/doc/html/index.html _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

you're right the example you provided is working and im using something similar now the problem i had that i tried to call a function with a wrong parameter type and since im using multi_index for this the compiler error message got a size that i didnt see the wood for the trees btw: nice library i will have a look on it thx for your help

vicente.botet wrote:

Hi, ----- Original Message ----- From: "Lennyk" <lennyk430@gmail.com> To: <boost-users@lists.boost.org> Sent: Sunday, February 15, 2009 6:14 PM Subject: [Boost-users] Setting thread affinity on Linux using boost::thread

...

Hi,

I'm running on Linux and I would like to set a specific thread affinity to each thread I create (i.e. setting each thread to run on a different core/CPU). How can this be done using the boost::thread library?

Oliver Kowalke, the author of the Boost.ThreadPool has posted a compressed file boost-bind_processor.v1.tar.gz in Boost Vault http://www.boostpro.com/vault/index.php?directory=Concurrent%20Programming&PHPSESSID=96307fee8086c06036af42fae790b449

This file contains functions which allows bind/unbind current thread to a processor

boost::this_thread::bind_to_processor( unsigned int n); // thread gets bound to processor n

boost::this_thread::bind_to_any_processor(); // thread can be scheduled to all available processors

Both functions will throw boost::system_error. Processors are enumerated starting at 0.

HTH, Vicente

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Great! Thanks! Lenny