脚本系统:c++内嵌python

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脚本系统:c++内嵌python

 // liquidx.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <boost/python/def.hpp>
#include <boost/python/module.hpp>
#include <boost/python/args.hpp>
#include <boost/python/class.hpp>
#include <boost/python/str.hpp>
#include <boost/python/dict.hpp>
#include <iostream>
#include <string>
#include <list>
#include <map>

using namespace std;

PyObject * RepeatString (PyObject *pSelf, PyObject *pParams)
{
    char *pstrString;
    int iRepCount;
    PyArg_ParseTuple(pParams, "si", &pstrString, &iRepCount);
    for (int i = 0; i < iRepCount; i++)printf("---%d ", i);
    return PyInt_FromLong(iRepCount);
}


int _tmain(int argc, _TCHAR* argv[])
{
    Py_Initialize();
    Py_IsInitialized();
    PyImport_AddModule("HostAPI");

    //create a function table
    PyMethodDef HostAPIFuncs [] =
    {
        {"RepeatString", RepeatString, METH_VARARGS, NULL},
        {NULL, NULL, NULL, NULL}
    };

    //initial the module with the function table
    Py_InitModule("HostAPI", HostAPIFuncs);

    PyObject *pName = PyString_FromString("helloworld");
    PyObject * pModule = PyImport_Import(pName);
    PyObject *pstr= NULL, *pDict= NULL;


    //get the module dict
    pDict = PyModule_GetDict(pModule);

    pstr = PyDict_GetItemString(pDict, "PrintStuff");//get the function with the dict
    PyObject_CallObject ( pstr, NULL ); //call the function


    PyObject *pFunc = PyDict_GetItemString(pDict, "RepCount");
    int  as = PyInt_AS_LONG(pFunc);
    printf( "**************************%d", as );

    //Py_XDECREF(pFunc);
    Py_XDECREF(pstr);
    //Py_XDECREF(pDict);
    Py_XDECREF(pModule);
    Py_XDECREF(pName);
    Py_Finalize(); // 清除
    getchar();
    return 0;
}

    Helloworld.py 如下:

    import HostAPI

    def PrintStuff():

    global RepCount

    RepCount = HostAPI.RepeatString("String repetition", 4)

    使用BOOST::PYTHON来写脚本的方法:

 # include <boost/python.hpp>
#include "sample.h"
#include <stdio.h>
#include <boost/smart_ptr.hpp>

class sample
{
    int m_value;
public:
    int GetValue();
    void SetValue(int v);

    sample(int v=0);
    ~sample(void);
};
typedef boost::shared_ptr<sample> pSample;


sample::sample(int v):m_value(v)
{
}

int sample::GetValue()
{
    return m_value;
}

void sample::SetValue(int v)
{
    m_value=v;
}

sample::~sample(void)
{
    fprintf(stderr,"Delete sample address is %x ",this);
}

namespace boost{
    namespace python{
        BOOST_PYTHON_MODULE(pySample)
        {
            class_<sample>("sample")
                .def("get",&sample::GetValue)
                .def("set",&sample::SetValue)
            ;

            register_ptr_to_python< pSample >();
        }

    }
};


using namespace boost::python;
int _tmain(int argc, _TCHAR* argv[])
{
    Py_Initialize();
    initpySample();

    try
    {
        object main_module = import("__main__");
        object main_namespace = main_module.attr("__dict__");
        pSample ptr( new sample(25) );

        main_namespace["sample"] = ptr;
        exec_file( "sample.py", main_namespace,main_namespace );
        fprintf( stderr,"print in c:%d %d ", ptr->GetValue(), ptr.use_count() );
    }
    catch(error_already_set const &)
    {
        PyErr_Print();
    }

    fprintf(stderr,"Before finalize ");
    Py_Finalize();
    fprintf(stderr,"After finalize ");
    getchar();
    return 0;
}
 

    Sample.py 如下:

    print "print in python",sample.get()

    print sample

    sample.set(12345)

    结果:

    print in python 25

    <pySample.sample object at 0x00C4CFB0>

    print in c:12345 2

    Before finalize

    Delete sample address is b46638

    After finalize

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