MqCall_py.c

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/* LABEL-NO */
 
#include "LibMqMsgque_private_py.h"
#include "misc_check_py.h"
/*
[ServiceCall signature]
  1. The *service-ctx* is the *context* for which the service was defined.
 
  callback-args := service-ctx:MqContextC[in]
  [static]   def callback ( callback-args )
  [instance] class YYY:
               def callback ( self, callback-args )
  [class]    class ZZZ: 
               @staticmethod
               def callback ( callback-args )
[ServiceCall signature]
*/
 
enum MkErrorE
NS(ServiceCall) ( MQ_SERVICE_CALL_ARGS )
{
  MQ_SERVICE_CALL_CHECK;
 
  PyObject * const callable = (PyObject*) __data__;
  PyObject * selfarg = OT_SELF_X(mqctx);
  PyObject * resultO = NULL;
 
  // test if already deleted
  if (VAL2CTX(selfarg) == NULL) {
    return MkErrorSetC_2M(mqctx, "object is NULL");
  } else if (Py_REFCNT(selfarg) == 0) {
    return MK_OK;
  }
 
//  PyThreadState* ts = PyThreadState_Swap(MK_RT_REF.mkThreadData.ptr);
//printV("ts start: %p → %p", ts, MK_RT_REF.mkThreadData.ptr);
 
  PyErr_Clear();
 
  // for methods of the instance 'self' the argument 'self' is already set
  if (PyMethod_Check(callable)) {
    PyObject* mself = PyMethod_Self(callable);
    if (mself == selfarg) {
      selfarg = NULL;
    }
  }
 
  // call the function
  resultO = PyObject_CallFunctionObjArgs(callable, selfarg, NULL);
 
  // no error return OK
  if (resultO == NULL) goto error;
 
  Py_CLEAR(resultO);
  return MkErrorGetCodeI(&MkERROR);   /* MkErrorGetCode_0E() */
 
error:
  OT_ERROR_LNG_2_META(mqctx);
 
  return MkErrorStack_0E_Check();
}
 
void
MK_DECL NS(ServiceFree) (
  MK_RT_ARGS
  MQ_CTX const context,
  MK_PTR *dataP
)
{
  MK(CallFree)(dataP);
}
 
void
MK_DECL NS(ServiceCopy) (
  MK_RT_ARGS
  MQ_CTX const context,
  MK_PTR *dataP
)
{
  PyObject* self = (PyObject*)MkOBJ_R(context).self;
 
//printSelf(self)
 
  PyObject* callable = (PyObject*)(*dataP);
  if (PyMethod_Check(callable)) {
    //PyObject* oldself = PyMethod_Self(callable);
//printSelf(oldself)
    PyObject* const function = PyMethod_Function(callable);
    if (function == NULL) {
      MkPanicC_4M(context,__func__,-1,"unable to 'PyMethod_Function'");
    } else {
      callable = PyMethod_New(function, self);
      if (callable == NULL) {
        MkPanicC_4M(context,__func__,-1,"unable to 'PyMethod_New'");
      } else {
        *dataP = callable;
      }
    }
  }
  Py_INCREF(*dataP);
}