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ffpython

VersionForRead

ffpython.h

ffpython.h 19.03 KB

#ifndef __FFPYTHON_H_
#define __FFPYTHON_H_

#include <Python.h>
#include <structmember.h>

#include <string>
using namespace std;

#include "pyops_base.h"
#include "pyops_for_embed.h"
#include "pyops_for_extend.h"

class ffpython_t
{
 struct reg_info_t
 {
 reg_info_t():args_num(0),option_args_num(0),func_addr(0){}
 int args_num;
 int option_args_num;
 long func_addr;
 PyCFunction func;
 string func_name;
 string func_impl_name;
 string doc;
 string doc_impl;
 };

public:
 ffpython_t();
 ~ffpython_t();

static int init_py();
 static int final_py();

static int add_path(const string& path_);

static int run_string(const string& py_);
 static int reload(const string& py_name_);
 static int load(const string& py_name_);

//! 将需要注册的函数、类型注册到python虚拟机
 int init(const string& mod_name_, string doc_ = "");

//! 注册static function,
 template<typename T>
 ffpython_t& reg(T func_, const string& func_name_, string doc_ = "")
 {
 reg_info_t tmp;
 tmp.args_num = pyext_func_traits_t<T>::args_num();
 tmp.option_args_num = pyext_func_traits_t<T>::option_args_num();
 tmp.func = (PyCFunction)pyext_func_traits_t<T>::pyfunc;
 tmp.func_name= func_name_;
 tmp.func_impl_name = func_name_ + "_internal_";
 tmp.doc = doc_;
 tmp.doc_impl = string("internal use, please call ") + func_name_;
 tmp.func_addr= (long)func_;
 
 m_func_info.push_back(tmp);
 return *this;
 }

//! 注册c++ class
 template<typename T, typename CTOR>
 pyclass_regigster_tool_t& reg_class(const string& class_name_, string doc_ = "", string inherit_name_ = "")
 {
 if (pyclass_base_info_t<T>::pytype_info.class_name.empty() == false)
 throw runtime_error("this type has been registed");

pyclass_base_info_t<T>::pytype_info.class_name = class_name_;
 //pyclass_base_info_t<T>::pytype_info.mod_name = m_mod_name;
 pyclass_base_info_t<T>::pytype_info.total_args_num = pyext_func_traits_t<CTOR>::args_num() + 
 pyext_func_traits_t<CTOR>::option_args_num();

pyclass_regigster_tool_t tmp;
 tmp.class_name = class_name_;
 tmp.class_real_name = class_name_ + "_internal_";
 tmp.inherit_name = inherit_name_;
 tmp.doc = doc_;
 tmp.dector = (destructor)pyclass_base_info_t<T>::free_obj;
 tmp.init = (initproc)pyclass_ctor_tool_t<T, CTOR>::init_obj;
 tmp.ctor = pyclass_base_info_t<T>::alloc_obj;
 tmp.type_size = sizeof(typename pyclass_base_info_t<T>::obj_data_t);
 tmp.args_num = pyext_func_traits_t<CTOR>::args_num();
 tmp.option_args_num = pyext_func_traits_t<CTOR>::option_args_num();
 tmp.static_pytype_info = &(pyclass_base_info_t<T>::pytype_info);
 //! 注册析构函数,python若不调用析构函数,当对象被gc时自动调用
 tmp.delete_func = (PyCFunction)pyclass_base_info_t<T>::release;
 m_all_pyclass.push_back(tmp);

return m_all_pyclass.back();
 }

//! 调用python函数,最多支持9个参数
 template<typename RET>
 RET_V call(const string& mod_name_, const string& func_)
 {
 pycall_arg_t args(0);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1)
 {
 pycall_arg_t args(1);
 args.add(a1);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2)
 {
 pycall_arg_t args(2);
 args.add(a1).add(a2);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3)
 {
 pycall_arg_t args(3);
 args.add(a1).add(a2).add(a3);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4)
 {
 pycall_arg_t args(4);
 args.add(a1).add(a2).add(a3).add(a4);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5)
 {
 pycall_arg_t args(5);
 args.add(a1).add(a2).add(a3).add(a4).add(a5);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6)
 {
 pycall_arg_t args(6);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6,const ARG7& a7)
 {
 pycall_arg_t args(7);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8)
 {
 pycall_arg_t args(8);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8, typename ARG9>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8, const ARG9& a9)
 {
 pycall_arg_t args(9);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8).add(a9);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 //!call python class method begin******************************************************************
 template<typename RET>
 RET_V obj_call(PyObject* pobj, const string& func_)
 {
 pycall_arg_t args(0);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1)
 {
 pycall_arg_t args(1);
 args.add(a1);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2)
 {
 pycall_arg_t args(2);
 args.add(a1).add(a2);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3)
 {
 pycall_arg_t args(3);
 args.add(a1).add(a2).add(a3);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4)
 {
 pycall_arg_t args(4);
 args.add(a1).add(a2).add(a3).add(a4);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5)
 {
 pycall_arg_t args(5);
 args.add(a1).add(a2).add(a3).add(a4).add(a5);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6)
 {
 pycall_arg_t args(6);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6,const ARG7& a7)
 {
 pycall_arg_t args(7);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8)
 {
 pycall_arg_t args(8);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8, typename ARG9>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8, const ARG9& a9)
 {
 pycall_arg_t args(9);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8).add(a9);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 //!call python class method end******************************************************************
 
 //!call python lambad function begin ############################################################
 template<typename RET>
 RET_V call_lambda(PyObject* pobj)
 {
 pycall_arg_t args(0);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1)
 {
 pycall_arg_t args(1);
 args.add(a1);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2)
 {
 pycall_arg_t args(2);
 args.add(a1).add(a2);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3)
 {
 pycall_arg_t args(3);
 args.add(a1).add(a2).add(a3);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4)
 {
 pycall_arg_t args(4);
 args.add(a1).add(a2).add(a3).add(a4);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5)
 {
 pycall_arg_t args(5);
 args.add(a1).add(a2).add(a3).add(a4).add(a5);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6)
 {
 pycall_arg_t args(6);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6,const ARG7& a7)
 {
 pycall_arg_t args(7);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8)
 {
 pycall_arg_t args(8);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8, typename ARG9>
 RET_V call_lambda(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8, const ARG9& a9)
 {
 pycall_arg_t args(9);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8).add(a9);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 //!call python lambad function ennd ############################################################
 template<typename RET>
 RET_V get_global_var(const string& mod_name_, const string& var_name_)
 {
 PyObject *pName = NULL, *pModule = NULL;
 string err_msg;

pName = PyString_FromString(mod_name_.c_str());
 pModule = PyImport_Import(pName);
 Py_DECREF(pName);
 if (NULL == pModule)
 {
 pyops_t::traceback(err_msg);
 throw runtime_error(err_msg.c_str());
 }

pytype_tool_impl_t<RET_V> pyret;
 PyObject *pvalue = PyObject_GetAttrString(pModule, var_name_.c_str());
 Py_DECREF(pModule);

if (!pvalue)
 {
 pyops_t::traceback(err_msg);
 throw runtime_error(err_msg.c_str());
 }

if (pyret.parse_value(pvalue))
 {
 Py_XDECREF(pvalue);
 throw runtime_error("type invalid");
 }
 Py_XDECREF(pvalue);
 return pyret.get_value();
 }

template<typename T>
 int set_global_var(const string& mod_name_, const string& var_name_, T val_)
 {
 PyObject *pName = NULL, *pModule = NULL;
 string err_msg;

pName = PyString_FromString(mod_name_.c_str());
 pModule = PyImport_Import(pName);
 Py_DECREF(pName);
 if (NULL == pModule)
 {
 pyops_t::traceback(err_msg);
 throw runtime_error(err_msg.c_str());
 }

PyObject* pval = pytype_traits_t<T>::pyobj_from_cppobj(val_);
 int ret = PyObject_SetAttrString(pModule, var_name_.c_str(), pval);
 Py_DECREF(pModule);

return ret != -1? 0: -1;
 }
 
 void cache_pyobject(PyObject* pobj)
 {
 m_cache_pyobject.push_back(pobj);
 }
 void clear_cache_pyobject()
 {
 if (Py_IsInitialized())
 {
 for (size_t i = 0; i < m_cache_pyobject.size(); ++i)
 {
 Py_XDECREF(m_cache_pyobject[i]);
 }
 m_cache_pyobject.clear();
 }
 }
private:
 PyObject* init_method();
 int init_pyclass(PyObject* m);

bool is_method_exist(const vector<pyclass_regigster_tool_t::method_info_t>& src_, const string& new_);
 bool is_property_exist(const vector<pyclass_regigster_tool_t::property_info_t>& src_, const string& new_);
 pyclass_regigster_tool_t* get_pyclass_info_by_name(const string& name_);

private:
 string m_mod_name;
 string m_mod_doc;
 vector<PyMethodDef> m_pymethod_defs;
 vector<reg_info_t> m_func_info;
 
 //! reg class
 vector<pyclass_regigster_tool_t> m_all_pyclass;
 //! cache some pyobject for optimize
 vector<PyObject*> m_cache_pyobject;
};

#endif

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Evan Zhao authored 2014年08月28日 13:22 +08:00 . 增加ffpython用于阅读的版本

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#ifndef __FFPYTHON_H_
#define __FFPYTHON_H_

#include <Python.h>
#include <structmember.h>

#include <string>
using namespace std;

#include "pyops_base.h"
#include "pyops_for_embed.h"
#include "pyops_for_extend.h"

class ffpython_t
{
 struct reg_info_t
 {
 reg_info_t():args_num(0),option_args_num(0),func_addr(0){}
 int args_num;
 int option_args_num;
 long func_addr;
 PyCFunction func;
 string func_name;
 string func_impl_name;
 string doc;
 string doc_impl;
 };

public:
 ffpython_t();
 ~ffpython_t();

 static int init_py();
 static int final_py();

 static int add_path(const string& path_);

 static int run_string(const string& py_);
 static int reload(const string& py_name_);
 static int load(const string& py_name_);


 //! 将需要注册的函数、类型注册到python虚拟机
 int init(const string& mod_name_, string doc_ = "");

 //! 注册static function,
 template<typename T>
 ffpython_t& reg(T func_, const string& func_name_, string doc_ = "")
 {
 reg_info_t tmp;
 tmp.args_num = pyext_func_traits_t<T>::args_num();
 tmp.option_args_num = pyext_func_traits_t<T>::option_args_num();
 tmp.func = (PyCFunction)pyext_func_traits_t<T>::pyfunc;
 tmp.func_name= func_name_;
 tmp.func_impl_name = func_name_ + "_internal_";
 tmp.doc = doc_;
 tmp.doc_impl = string("internal use, please call ") + func_name_;
 tmp.func_addr= (long)func_;
 
 m_func_info.push_back(tmp);
 return *this;
 }

 //! 注册c++ class
 template<typename T, typename CTOR>
 pyclass_regigster_tool_t& reg_class(const string& class_name_, string doc_ = "", string inherit_name_ = "")
 {
 if (pyclass_base_info_t<T>::pytype_info.class_name.empty() == false)
 throw runtime_error("this type has been registed");

 pyclass_base_info_t<T>::pytype_info.class_name = class_name_;
 //pyclass_base_info_t<T>::pytype_info.mod_name = m_mod_name;
 pyclass_base_info_t<T>::pytype_info.total_args_num = pyext_func_traits_t<CTOR>::args_num() + 
 pyext_func_traits_t<CTOR>::option_args_num();

 pyclass_regigster_tool_t tmp;
 tmp.class_name = class_name_;
 tmp.class_real_name = class_name_ + "_internal_";
 tmp.inherit_name = inherit_name_;
 tmp.doc = doc_;
 tmp.dector = (destructor)pyclass_base_info_t<T>::free_obj;
 tmp.init = (initproc)pyclass_ctor_tool_t<T, CTOR>::init_obj;
 tmp.ctor = pyclass_base_info_t<T>::alloc_obj;
 tmp.type_size = sizeof(typename pyclass_base_info_t<T>::obj_data_t);
 tmp.args_num = pyext_func_traits_t<CTOR>::args_num();
 tmp.option_args_num = pyext_func_traits_t<CTOR>::option_args_num();
 tmp.static_pytype_info = &(pyclass_base_info_t<T>::pytype_info);
 //! 注册析构函数,python若不调用析构函数,当对象被gc时自动调用
 tmp.delete_func = (PyCFunction)pyclass_base_info_t<T>::release;
 m_all_pyclass.push_back(tmp);

 return m_all_pyclass.back();
 }


 //! 调用python函数,最多支持9个参数
 template<typename RET>
 RET_V call(const string& mod_name_, const string& func_)
 {
 pycall_arg_t args(0);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1)
 {
 pycall_arg_t args(1);
 args.add(a1);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2)
 {
 pycall_arg_t args(2);
 args.add(a1).add(a2);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3)
 {
 pycall_arg_t args(3);
 args.add(a1).add(a2).add(a3);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4)
 {
 pycall_arg_t args(4);
 args.add(a1).add(a2).add(a3).add(a4);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5)
 {
 pycall_arg_t args(5);
 args.add(a1).add(a2).add(a3).add(a4).add(a5);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6)
 {
 pycall_arg_t args(6);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6,const ARG7& a7)
 {
 pycall_arg_t args(7);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8)
 {
 pycall_arg_t args(8);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8, typename ARG9>
 RET_V call(const string& mod_name_, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8, const ARG9& a9)
 {
 pycall_arg_t args(9);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8).add(a9);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call<RET_V>(mod_name_, func_, args, pyret);
 }
 //!call python class method begin******************************************************************
 template<typename RET>
 RET_V obj_call(PyObject* pobj, const string& func_)
 {
 pycall_arg_t args(0);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1)
 {
 pycall_arg_t args(1);
 args.add(a1);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2)
 {
 pycall_arg_t args(2);
 args.add(a1).add(a2);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3)
 {
 pycall_arg_t args(3);
 args.add(a1).add(a2).add(a3);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4)
 {
 pycall_arg_t args(4);
 args.add(a1).add(a2).add(a3).add(a4);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5)
 {
 pycall_arg_t args(5);
 args.add(a1).add(a2).add(a3).add(a4).add(a5);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6)
 {
 pycall_arg_t args(6);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6,const ARG7& a7)
 {
 pycall_arg_t args(7);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8)
 {
 pycall_arg_t args(8);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8, typename ARG9>
 RET_V obj_call(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8, const ARG9& a9)
 {
 pycall_arg_t args(9);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8).add(a9);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_obj_method<RET_V>(pobj, func_, args, pyret);
 }
 //!call python class method end******************************************************************
 
 //!call python lambad function begin ############################################################
 template<typename RET>
 RET_V call_lambda(PyObject* pobj)
 {
 pycall_arg_t args(0);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1)
 {
 pycall_arg_t args(1);
 args.add(a1);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2)
 {
 pycall_arg_t args(2);
 args.add(a1).add(a2);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3)
 {
 pycall_arg_t args(3);
 args.add(a1).add(a2).add(a3);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4)
 {
 pycall_arg_t args(4);
 args.add(a1).add(a2).add(a3).add(a4);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5)
 {
 pycall_arg_t args(5);
 args.add(a1).add(a2).add(a3).add(a4).add(a5);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6)
 {
 pycall_arg_t args(6);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5,const ARG6& a6,const ARG7& a7)
 {
 pycall_arg_t args(7);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8>
 RET_V call_lambda(PyObject* pobj, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8)
 {
 pycall_arg_t args(8);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 template<typename RET, typename ARG1, typename ARG2, typename ARG3, typename ARG4, typename ARG5, typename ARG6, typename ARG7,
 typename ARG8, typename ARG9>
 RET_V call_lambda(PyObject* pobj, const string& func_, const ARG1& a1, const ARG2& a2, const ARG3& a3, const ARG4& a4,
 const ARG5& a5, const ARG6& a6, const ARG7& a7, const ARG8& a8, const ARG9& a9)
 {
 pycall_arg_t args(9);
 args.add(a1).add(a2).add(a3).add(a4).add(a5).add(a6).add(a7).add(a8).add(a9);
 pytype_tool_impl_t<RET_V> pyret;
 return pycall_t::call_lambda<RET_V>(pobj, args, pyret);
 }
 //!call python lambad function ennd ############################################################
 template<typename RET>
 RET_V get_global_var(const string& mod_name_, const string& var_name_)
 {
 PyObject *pName = NULL, *pModule = NULL;
 string err_msg;

 pName = PyString_FromString(mod_name_.c_str());
 pModule = PyImport_Import(pName);
 Py_DECREF(pName);
 if (NULL == pModule)
 {
 pyops_t::traceback(err_msg);
 throw runtime_error(err_msg.c_str());
 }

 pytype_tool_impl_t<RET_V> pyret;
 PyObject *pvalue = PyObject_GetAttrString(pModule, var_name_.c_str());
 Py_DECREF(pModule);

 if (!pvalue)
 {
 pyops_t::traceback(err_msg);
 throw runtime_error(err_msg.c_str());
 }

 if (pyret.parse_value(pvalue))
 {
 Py_XDECREF(pvalue);
 throw runtime_error("type invalid");
 }
 Py_XDECREF(pvalue);
 return pyret.get_value();
 }

 template<typename T>
 int set_global_var(const string& mod_name_, const string& var_name_, T val_)
 {
 PyObject *pName = NULL, *pModule = NULL;
 string err_msg;

 pName = PyString_FromString(mod_name_.c_str());
 pModule = PyImport_Import(pName);
 Py_DECREF(pName);
 if (NULL == pModule)
 {
 pyops_t::traceback(err_msg);
 throw runtime_error(err_msg.c_str());
 }

 PyObject* pval = pytype_traits_t<T>::pyobj_from_cppobj(val_);
 int ret = PyObject_SetAttrString(pModule, var_name_.c_str(), pval);
 Py_DECREF(pModule);

 return ret != -1? 0: -1;
 }
 
 void cache_pyobject(PyObject* pobj)
 {
 m_cache_pyobject.push_back(pobj);
 }
 void clear_cache_pyobject()
 {
 if (Py_IsInitialized())
 {
 for (size_t i = 0; i < m_cache_pyobject.size(); ++i)
 {
 Py_XDECREF(m_cache_pyobject[i]);
 }
 m_cache_pyobject.clear();
 }
 }
private:
 PyObject* init_method();
 int init_pyclass(PyObject* m);
 

 bool is_method_exist(const vector<pyclass_regigster_tool_t::method_info_t>& src_, const string& new_);
 bool is_property_exist(const vector<pyclass_regigster_tool_t::property_info_t>& src_, const string& new_);
 pyclass_regigster_tool_t* get_pyclass_info_by_name(const string& name_);

private:
 string m_mod_name;
 string m_mod_doc;
 vector<PyMethodDef> m_pymethod_defs;
 vector<reg_info_t> m_func_info;
 
 //! reg class
 vector<pyclass_regigster_tool_t> m_all_pyclass;
 //! cache some pyobject for optimize
 vector<PyObject*> m_cache_pyobject;
};


#endif

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ffpython is a c++ lib,which is to simplify embedding python and extend python. For example, call python function, register c++ function to python, register c++ class to python, on one implement c++ header file.

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/mysim/ffpython/blob/master/VersionForRead/ffpython.h

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