116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
#include <tchar.h>
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#include "Python.h"
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#include <thread>
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#include <future>
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extern "C" __declspec(dllexport) void InitPythonEnv()
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{
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Py_Initialize();
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PyEval_InitThreads();
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}
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char* GetErrorMessage()
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{
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char *pStrErrorMessage = NULL;
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if(PyErr_Occurred()){
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PyObject *ptype, *pvalue, *ptraceback;
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PyErr_Fetch(&ptype, &pvalue, &ptraceback);
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pStrErrorMessage = PyString_AsString(pvalue);
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}
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return pStrErrorMessage;
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}
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char* Exec(char* directory, char* file, char* method, char* para)
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{
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PyObject *pName, *pModule, *pDict, *pFunc, *pValue, *pClass, *pInstance;
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char *error;
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PyThreadState* global_state = PyThreadState_Get();
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PyThreadState* ts = Py_NewInterpreter();
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PyThreadState_Swap(ts);
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// Initialise the Python interpreter
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// Create GIL/enable threads
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//PyGILState_STATE gstate = PyGILState_Ensure();
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// // Get the default thread state
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// PyThreadState* state = PyThreadState_Get();
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// // Once in each thread
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//PyThreadState* stateForNewThread = PyThreadState_New(state->interp);
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//PyEval_RestoreThread(stateForNewThread);
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// Build the name object
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PyObject *sys = PyImport_ImportModule("sys");
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PyObject *path = PyObject_GetAttrString(sys, "path");
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PyList_Append(path, PyString_FromString(directory));
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pName = PyString_FromString(file);
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error = GetErrorMessage();
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if(error != NULL){
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char* err =new char[5000]();
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sprintf(error, "%s:%s","PYTHONERROR",error);
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return err;
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}
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pModule = PyImport_Import(pName);
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error = GetErrorMessage();
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if(error != NULL){
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char* err =new char[5000]();
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sprintf(err, "%s:%s","PYTHONERROR",error);
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return err;
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}
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pDict = PyModule_GetDict(pModule);
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error = GetErrorMessage();
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if(error != NULL){
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char* err =new char[5000]();
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sprintf(err, "%s:%s","PYTHONERROR",error);
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return err;
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}
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pClass = PyDict_GetItemString(pDict,"PyWinAlfred");
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error = GetErrorMessage();
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if(error != NULL){
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char* err =new char[5000]();
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sprintf(err, "%s:%s","PYTHONERROR",error);
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return err;
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}
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pInstance = PyObject_CallObject(pClass, NULL);
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error = GetErrorMessage();
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if(error != NULL){
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char* err =new char[5000]();
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sprintf(err, "%s:%s","PYTHONERROR",error);
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return err;
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}
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// Call a method of the class with two parameters
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pValue = PyObject_CallMethod(pInstance,method, "(s)",para);
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error = GetErrorMessage();
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if(error != NULL){
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char* err =new char[5000]();
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sprintf(err, "%s:%s","PYTHONERROR",error);
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return err;
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}
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char * str_ret = PyString_AsString(pValue);
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//PyEval_SaveThread();
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// Finish the Python Interpreter
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PyErr_Clear();
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Py_EndInterpreter(ts);
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PyThreadState_Swap(global_state);
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return str_ret;
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}
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extern "C" __declspec(dllexport) char* ExecPython(char* directory, char* file, char* method, char* para)
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{
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auto future = std::async(Exec,directory,file,method,para);
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return future.get();
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} |