C++ PyBytes_FromString函数代码示例

static PyObject *pygrpc_finished_event_args(grpc_event *c_event) {
  PyObject *code;
  PyObject *details;
  PyObject *status;
  PyObject *event_args;

  code = pygrpc_status_code(c_event->data.finished.status);
  if (code == NULL) {
    PyErr_SetString(PyExc_RuntimeError, "Unrecognized status code!");
    return NULL;
  }
  if (c_event->data.finished.details == NULL) {
    details = PyBytes_FromString("");
  } else {
    details = PyBytes_FromString(c_event->data.finished.details);
  }
  if (details == NULL) {
    return NULL;
  }
  status = PyObject_CallFunctionObjArgs(status_class, code, details, NULL);
  Py_DECREF(details);
  if (status == NULL) {
    return NULL;
  }
  event_args = PyTuple_Pack(7, finish_event_kind, (PyObject *)c_event->tag,
                            Py_None, Py_None, Py_None, Py_None, status);
  Py_DECREF(status);
  return event_args;
}

PyObject* 
init_local_module(PyObject *m)
{
    PyObject *d, *sd, *v;
    PyObject *sys_modules, *module;
    PyMethodDef *ml;
    

#ifdef PY3
    PyObject *mod_name = PyUnicode_FromString(MODULE_NAME "." LOCAL_MOD_NAME);
#else
    PyObject *mod_name = PyBytes_FromString(MODULE_NAME "." LOCAL_MOD_NAME);
#endif
    
    if(mod_name == NULL){
        return NULL;
    }

    LocalObjectType.tp_new = PyType_GenericNew;
    if(PyType_Ready(&LocalObjectType) < 0){
        return NULL;
    }

    sys_modules = PySys_GetObject("modules");
    d = PyModule_GetDict(m);
    module = PyDict_GetItem(d, mod_name);
    if(module == NULL) {
        module = PyModule_New(MODULE_NAME "." LOCAL_MOD_NAME);
        if(module != NULL) {
            PyDict_SetItem(sys_modules, mod_name, module);
            PyModule_AddObject(m, LOCAL_MOD_NAME, module);
        }
    }
    sd = PyModule_GetDict(module);
    for(ml = LocalMod_methods; ml->ml_name != NULL; ml++){
        v = PyCFunction_NewEx(ml, (PyObject *)NULL, mod_name);
        if(v == NULL) {
            goto fin;
        }
        if(PyDict_SetItemString(sd, ml->ml_name, v) != 0){
            Py_DECREF(v);
            return NULL;
        }
        Py_DECREF(v);
    }

fin:
    Py_DECREF(mod_name);

    Py_INCREF(&LocalObjectType);
    PyModule_AddObject(module, "local", (PyObject *)&LocalObjectType);
    
#ifdef PY3
    dict_key = PyUnicode_FromString("_jega_local_dict__");
#else
    dict_key = PyBytes_FromString("_jega_local_dict__");
#endif
    return module;
}

static PyObject *pygrpc_service_event_args(grpc_event *c_event) {
  if (c_event->data.server_rpc_new.method == NULL) {
    return PyTuple_Pack(7, service_event_kind, c_event->tag,
                        Py_None, Py_None, Py_None, Py_None, Py_None);
  } else {
    PyObject *method = NULL;
    PyObject *host = NULL;
    PyObject *service_deadline = NULL;
    Call *call = NULL;
    PyObject *service_acceptance = NULL;
    PyObject *event_args = NULL;

    method = PyBytes_FromString(c_event->data.server_rpc_new.method);
    if (method == NULL) {
      goto error;
    }
    host = PyBytes_FromString(c_event->data.server_rpc_new.host);
    if (host == NULL) {
      goto error;
    }
    service_deadline =
        pygrpc_as_py_time(&c_event->data.server_rpc_new.deadline);
    if (service_deadline == NULL) {
      goto error;
    }

    call = PyObject_New(Call, &pygrpc_CallType);
    if (call == NULL) {
      goto error;
    }
    call->c_call = c_event->call;

    service_acceptance =
        PyObject_CallFunctionObjArgs(service_acceptance_class, call, method,
                                     host, service_deadline, NULL);
    if (service_acceptance == NULL) {
      goto error;
    }

    event_args = PyTuple_Pack(7, service_event_kind,
                              (PyObject *)c_event->tag, Py_None, Py_None,
                              service_acceptance, Py_None, Py_None);

    Py_DECREF(service_acceptance);
error:
    Py_XDECREF(call);
    Py_XDECREF(method);
    Py_XDECREF(host);
    Py_XDECREF(service_deadline);

    return event_args;
  }
}

/**
 * @brief Checks if a given language pair is available
 *
 * pythonInit() must have been called before or an error will occur (the module is not loaded)
 * @param source String containing the source language
 * @param source String containing the target language
 * @return 1 if the call was successful and the language pair exists, or 0 otherwise
 */
int pairExists(char* source, char* target){
    PyObject *pFunc, *pArgs, *pArg, *result;

    if (iface_module != NULL) {
        pFunc = PyObject_GetAttrString(iface_module, "pairExists");

        if (pFunc) {
            pArgs = PyTuple_New(2);

            pArg = PyBytes_FromString(source);
            PyTuple_SetItem(pArgs, 0, pArg);

            pArg = PyBytes_FromString(target);
            PyTuple_SetItem(pArgs, 1, pArg);

            result = PyObject_CallObject(pFunc, pArgs);

            if (result != NULL) {
                if(PyDict_GetItemString(result,"ok") == Py_True){
                    Py_XDECREF(pFunc);

                    if(PyDict_GetItemString(result,"result") == Py_True){
                        return 1;
                    }
                    else{
                        notify_error("Pair does not exist");
                        return 0;
                    }
                }
                else{
                    Py_XDECREF(pFunc);
                    notify_error(PyBytes_AsString(PyDict_GetItemString(result,"errorMsg")));
                    return 0;
                }
            }
            else {
                Py_XDECREF(pFunc);
                return 0;
            }
        }
        else {
            return 0;
        }
    }
    else {
        notify_error("Module: \'apertiumInterfaceAPY\' is not loaded");
        return 0;
    }
}

/**
 * @brief Creates a new entry in the language pairs dictionary
 *
 * pythonInit() must have been called before or an error will occur (the module is not loaded)
 * @param user Name of the user to create a new entry for
 * @param direction Direction to create a new entry in ("incoming" or "outgoing")
 * @param source Source language of the language pair
 * @param target Target language of the language pair
 * @return 1 on success, or 0 otherwise
 */
int dictionarySetUserEntry(const char* user, const char* direction, const char* source, const char* target){
    PyObject *pFunc, *pArgs, *result;

    if (files_module != NULL) {
        pFunc = PyObject_GetAttrString(files_module, "setLangPair");

        if (pFunc) {
            pArgs = PyTuple_New(4);

            PyTuple_SetItem(pArgs, 0, PyUnicode_FromString(direction));

            PyTuple_SetItem(pArgs, 1, PyUnicode_FromString(user));

            PyTuple_SetItem(pArgs, 2, PyBytes_FromString(source));

            PyTuple_SetItem(pArgs, 3, PyBytes_FromString(target));

            result = PyObject_CallObject(pFunc, pArgs);

            if(result != NULL){
                if(result == Py_True){
                    Py_XDECREF(result);
                    Py_XDECREF(pFunc);
                    Py_XDECREF(pArgs);
                    return 1;
                }
                else{
                    Py_XDECREF(result);
                    Py_XDECREF(pFunc);
                    Py_XDECREF(pArgs);
                    return 0;
                }
            }
            else{
                Py_XDECREF(pFunc);
                Py_XDECREF(pArgs);
                return 0;
            }
        }
        else{
            return 0;
        }
    }
    else {
        notify_error("Module: \'apertiumFiles\' is not loaded");
        return 0;
    }
}

PyObject* newItem(PyTypeObject* enumType, long itemValue, const char* itemName)
{
    bool newValue = true;
    SbkEnumObject* enumObj;
    if (!itemName) {
        enumObj = reinterpret_cast<SbkEnumObject*>(getEnumItemFromValue(enumType, itemValue));
        if (enumObj)
            return reinterpret_cast<PyObject*>(enumObj);

        newValue = false;
    }

    enumObj = PyObject_New(SbkEnumObject, enumType);
    if (!enumObj)
        return 0;

    enumObj->ob_name = itemName ? PyBytes_FromString(itemName) : 0;
    enumObj->ob_value = itemValue;

    if (newValue) {
        PyObject* values = PyDict_GetItemString(enumType->tp_dict, const_cast<char*>("values"));
        if (!values) {
            values = PyDict_New();
            PyDict_SetItemString(enumType->tp_dict, const_cast<char*>("values"), values);
            Py_DECREF(values); // ^ values still alive, because setitemstring incref it
        }
        PyDict_SetItemString(values, itemName, reinterpret_cast<PyObject*>(enumObj));
    }

    return reinterpret_cast<PyObject*>(enumObj);
}

static PyObject *
HunSpell_generate2(HunSpell * self, PyObject *args)
{
    char *word1, *desc, **slist;
    int i, num_slist, ret;
    PyObject *slist_list, *pystr;

    if (!PyArg_ParseTuple(args, "etet", self->encoding, &word1, self->encoding, &desc))
        return NULL;

    slist_list = PyList_New(0);
    if (!slist_list) {
        return NULL;
    }

    num_slist = self->handle->generate(&slist, word1, &desc, 1);
    PyMem_Free(word1);
    PyMem_Free(desc);

    for (i = 0, ret = 0; !ret && i < num_slist; i++) {
        pystr = PyBytes_FromString(slist[i]);
        if (!pystr)
            break;
        ret = PyList_Append(slist_list, pystr);
        Py_DECREF(pystr);
    }

    self->handle->free_list(&slist, num_slist);
    return slist_list;
}

/**
  Convert a Python decimal.Decimal to MySQL DECIMAL.

  Convert a Python decimal.Decimal to MySQL DECIMAL. This function also
  removes the 'L' suffix from the resulting string when using Python v2.

  @param    obj         PyObject to be converted

  @return   Converted decimal as string
    @retval PyBytes     Python v3
    @retval PyString    Python v2
*/
PyObject*
pytomy_decimal(PyObject *obj)
{
#ifdef PY3
    return PyBytes_FromString((const char *)PyUnicode_1BYTE_DATA(
                              PyObject_Str(obj)));
#else
    PyObject *numeric, *new_num;
    int tmp_size;
    char *tmp;

    numeric= PyObject_Str(obj);
    tmp= PyString_AsString(numeric);
    tmp_size= (int)PyString_Size(numeric);
    if (tmp[tmp_size - 1] == 'L')
    {
        new_num= PyString_FromStringAndSize(tmp, tmp_size);
        _PyString_Resize(&new_num, tmp_size - 1);
        return new_num;
    }
    else
    {
        return numeric;
    }

#endif
}

// ------------------------------------------
PyObject *LinkServiceBinder::flavorToName(PyObject *self, PyObject *args) {
    __PYTHON_EXCEPTION_GUARD_BEGIN_;
    PyObject *result = NULL;
    LinkServicePtr o;

    if (!python_cast<LinkServicePtr>(self, &msType, &o))
        __PY_CONVERR_RET;

    int id;

    if (PyArg_ParseTuple(args, "i", &id)) {
        const std::string &res = o->flavorToName(id);

#ifdef IS_PY3K
        result = PyBytes_FromString(res.c_str());
#else
        result = PyString_FromString(res.c_str());
#endif
        return result;
    } else {
        // Invalid parameters
        PyErr_SetString(PyExc_TypeError, "Expected an integer argument!");
        return NULL;
    }
    __PYTHON_EXCEPTION_GUARD_END_;
}

PyObject *Vcf_writeFile( PyObject *self, PyObject *args ){
  char *filename;
  PyObject *cards;
  FILE * fptr;
  Py_ssize_t i, j, max, nprops;
  PyObject * ccard/*, * cprop, *name, *parval, *partype, *value*/;
  VcFile * wfile;
  Vcard * crrtC;
//   VcStatus status;
//   int m, n;
  
  if(!PyArg_ParseTuple( args, "sO", &filename, &cards)){
    return NULL;
  }
  
  fptr = fopen(filename, "w");
  if(fptr == NULL){
    char * errmsg = strerror(errno);
    char msg[25+strlen(errmsg)];
    sprintf(msg, "Cannot open file due to %s", errmsg);
    return PyBytes_FromString(msg);
  }
  
  wfile = calloc(1, sizeof(VcFile));
  
  max = PyList_Size(cards);
  wfile->ncards = max;
  wfile->cardp = calloc(max, sizeof(Vcard*));
  
  for(i = 0; i < max; i++){
    ccard = PyList_GetItem(cards, i);
    nprops = PyList_Size(ccard);
    crrtC = calloc(nprops, sizeof(Vcard)+sizeof(VcProp));
    crrtC->nprops = nprops;
//     printf("This is what crrtC = %p", crrtC);
    for(j = 0; j < nprops; j++){
      //grab python object
      PyArg_ParseTuple(PyList_GetItem(ccard, j), "isss", &(crrtC->prop[j].name), &(crrtC->prop[j].partype), &(crrtC->prop[j].parval), &(crrtC->prop[j].value));
    }//end of j loop
    wfile->cardp[i] = crrtC;
  }//end of i loop
  
//   printf("This is the number of cards: %d\n", wfile->ncards);
//   for(m = 0; m < wfile->ncards; m++){
//     printf("Is this even fucking working?\n");
//     crrtC = wfile->cardp[m];
//     printf("This is card #%d\n", m+1);
//     for(n = 0; n < crrtC->nprops; n++){
//       VcProp crrtP = crrtC->prop[n];
//       printf("Prop #%d: VcPName= %d Partype = %s, Parval = %s, Value = %s\n", n, crrtP.name, crrtP.partype, crrtP.parval, crrtP.value);
//     }
//   }
  //status = writeVcFile(fptr, wfile);
  
  //freeVcFile(wfile);
  
  return PyLong_FromLong(1);
  //generateError(status);
  
}//end of wrapper function for writeVcFile

PyObject *pylzma_decompressobj_compat(PyObject *self, PyObject *args)
{
    CCompatDecompressionObject *result=NULL;
    
    if (!PyArg_ParseTuple(args, ""))
        goto exit;
    
    result = PyObject_New(CCompatDecompressionObject, &CompatDecompressionObject_Type);
    CHECK_NULL(result);
    
    result->unconsumed_tail = NULL;
    result->unconsumed_length = 0;

    result->unused_data = PyBytes_FromString("");
    if (result->unused_data == NULL)
    {
        PyErr_NoMemory();
        PyObject_Del(result);
        result = NULL;
        goto exit;
    }    
    
    memset(&result->stream, 0, sizeof(result->stream));
    lzmaCompatInit(&result->stream);
    
exit:
    
    return (PyObject *)result;
}

static PyObject*
parse_h_aliases(struct hostent *h)
{
    char **pch;
    PyObject *result = NULL;
    PyObject *tmp;

    result = PyList_New(0);

    if (result && h->h_aliases) {
        for (pch = h->h_aliases; *pch != NULL; pch++) {
            if (*pch != h->h_name && strcmp(*pch, h->h_name)) {
                int status;
                tmp = PyBytes_FromString(*pch);
                if (tmp == NULL) {
                    break;
                }

                status = PyList_Append(result, tmp);
                Py_DECREF(tmp);

                if (status) {
                    break;
                }
            }
        }
    }

    return result;
}

static PyObject *
Pipe_func_getsockname(Pipe *self)
{
#ifdef _WIN32
    /* MAX_PATH is in characters, not bytes. Make sure we have enough headroom. */
    char buf[MAX_PATH * 4];
#else
    char buf[PATH_MAX];
#endif
    size_t buf_len;
    int err;

    RAISE_IF_HANDLE_NOT_INITIALIZED(self, NULL);
    RAISE_IF_HANDLE_CLOSED(self, PyExc_HandleClosedError, NULL);

    buf_len = sizeof(buf);
    err = uv_pipe_getsockname(&self->pipe_h, buf, &buf_len);
    if (err < 0) {
        RAISE_UV_EXCEPTION(err, PyExc_PipeError);
        return NULL;
    }

    if (buf_len == 0) {
        return PyBytes_FromString("");
    } else if (buf[0] == '\0') {
        /* Linux abstract namespace */
        return PyBytes_FromStringAndSize(buf, buf_len);
    } else {
        return PyBytes_FromStringAndSize(buf, buf_len-1);
    }

}

static PyObject * generateError(VcStatus result){
  char msg[100];
  
  switch(result.code){
    case SYNTAX:
      sprintf(msg, "Syntax error on lines %d-%d", result.linefrom, result.lineto);
      break;
    case PAROVER:
      sprintf(msg, "Parameter overflow on lines %d-%d", result.linefrom, result.lineto);
      break;
    case BEGEND:
      sprintf(msg, "Invalid BEGIN or END on lines %d-%d", result.linefrom, result.lineto);
      break;
    case BADVER:
      sprintf(msg, "Bad version on lines %d-%d", result.linefrom, result.lineto);
      break;
    case NOPNFN:
      sprintf(msg, "Missing formatted or name on lines %d-%d", result.linefrom, result.lineto);
      break;
    case NOPVER:
      sprintf(msg, "Missing version on lines %d-%d", result.linefrom, result.lineto);
      break;
    case OK:
      sprintf(msg, "OK");
      break;
    case IOERR:
      sprintf(msg, "IO error on lines %d-%d", result.linefrom, result.lineto);
      break;
  }//end of switch 
  return PyBytes_FromString(msg);
}//en d of generateError

//----------------------------------------------------------------------------
// Return set(dict.keys()).issubset(set([vkeys, ...])
// keys of dict must be string or unicode in Py2 and string in Py3!
// Parameters:
// dict - the Python dictionary object to be checked
// vkeys - a null-terminated list of keys (char *)
//----------------------------------------------------------------------------
int checkDictKeys(PyObject *dict, const char *vkeys, ...)
{
    int i, j, rc;
    PyObject *dkeys = PyDict_Keys(dict);              // = dict.keys()
    if (!dkeys) return 0;                             // no valid dictionary
    j = PySequence_Size(dkeys);                       // len(dict.keys())
    PyObject *validkeys = PyList_New(0);              // make list of valid keys
    va_list ap;                                       // def var arg list
    va_start(ap, vkeys);                              // start of args
    while (vkeys != 0)                                // reached end yet?
        { // build list of valid keys to check against
#if PY_MAJOR_VERSION < 3
        PyList_Append(validkeys, PyBytes_FromString(vkeys));    // Python 2
#else
        PyList_Append(validkeys, PyUnicode_FromString(vkeys));  // python 3
#endif
        vkeys = va_arg(ap, const char *);             // get next char string
        }
    va_end(ap);                                       // end the var args loop
    rc = 1;                                           // prepare for success
    for (i = 0; i < j; i++)
    {   // loop through dictionary keys
        if (!PySequence_Contains(validkeys, PySequence_GetItem(dkeys, i)))
            {
            rc = 0;
            break;
            }
    }
    Py_DECREF(validkeys);
    Py_DECREF(dkeys);
    return rc;
}