[Fwd: Having trouble with boost thread library]

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Fei Liu

16 Aug 2007 16 Aug '07

2:02 p.m.

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Havingtroublewithboostthreadlibrary.eml (message/rfc822 — 9.1 KB)

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Anthony Williams

17 Aug 17 Aug

7:35 a.m.

Fei Liu writes: This is nothing to do with threads. The problem is here:

...

//if(initialized_) serverlet_type(newsockfd, obj); <---- causes error

and here:

...

typedef void (*serverlet_type)(int, shared_obj_type);

You are trying to construct a "servlet_type" (which is a function pointer) with two parameters --- that's not going to work. I guess that the "_type" part in the function call above is actually a typo. Anthony -- Anthony Williams Just Software Solutions Ltd - http://www.justsoftwaresolutions.co.uk Registered in England, Company Number 5478976. Registered Office: 15 Carrallack Mews, St Just, Cornwall, TR19 7UL

Fei Liu

20 Aug 20 Aug

2:49 p.m.

Anthony Williams wrote:

...

Fei Liu writes:

This is nothing to do with threads. The problem is here:

...
//if(initialized_) serverlet_type(newsockfd, obj); <---- causes error

and here:

...
typedef void (*serverlet_type)(int, shared_obj_type);

You are trying to construct a "servlet_type" (which is a function pointer) with two parameters --- that's not going to work. I guess that the "_type" part in the function call above is actually a typo.

Anthony

Thanks, that indeed was the error. Fei

ALEX NG

5:02 p.m.

New subject: BOOST calls Python Code

HI I would like to run a C++ program that can call a python code which is stored as a *.py. so that if I make any changes inside *.py, my C++ program can get the results. In my code, I have a class CppClass and an object created from this class called cpp. How can I pass this object to a *.py file and get the new results? class CppClass { public: int getNum() { return 8; } // int getNum2(){// //return 12; //} }; #include "boost/python.hpp" using namespace boost::python; int main( int argc, char ** argv ) { try { Py_Initialize(); object main_module(( handle<>(borrowed(PyImport_AddModule("__main__"))))); object main_namespace = main_module.attr("__dict__"); // main_namespace["cpp"] = ptr(&cpp); main_namespace["CppClass"] = class_<CppClass>("CppClass") .def("getNum",&CppClass::getNum); CppClass cpp; cpp.getNum(); main_namespace["multiply"] = ptr(&cpp); handle<> ignored(( PyRun_String( "print multiply.getNum() \n", Py_file_input, main_namespace.ptr(), main_namespace.ptr() ) )); } catch( error_already_set ) { PyErr_Print(); } } multiply.py def multiply(a,b): global c print "Will compute", a, "times", b c=c+(a*b) return c

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ALEX NG
Anthony Williams
Fei Liu