theKernel 10.0
Loading...
Searching...
No Matches
MkErrorC_PY_API

MkErrorC - the class known as err or error is used to create and manage an error message … More...

+ Collaboration diagram for MkErrorC_PY_API:

Topics

 MkErrorC_Class_PY_API
 MkErrorC - define the class …
 
 MkErrorC_TOR_PY_API
 MkErrorC - various functions to 'create' and 'delete' a MkErrorS
 
 MkErrorC_System_PY_API
 MkErrorC - various functions to raise a 'System' messagen on MkErrorS
 
 MkErrorC_Signal_PY_API
 MkErrorC - various functions to set and check a 'signal' on a MkErrorS
 
 MkErrorC_Get_PY_API
 MkErrorC - various functions to 'get' data out of a MkErrorS
 
 MkErrorC_Raise_PY_API
 MkErrorC - various functions to 'raise' a MkErrorS
 
 MkErrorC_Misc_PY_API
 MkErrorC - various functions to 'work' on a MkErrorS
 

Detailed Description

MkErrorC - the class known as err or error is used to create and manage an error message …

An error is a singleton object per thread created at startup and is located at MkRuntimeRLS using the datatype MkErrorC.

‍As error-indicator the enum MkErrorE is used.

The MkErrorC is used to collect all data needed to handle an error and provide global ressources required to process and report the error.

The MkErrorC is also used to integrate the error-handling from pymkkernel into the error-handling-code of the target Python.

Example from Filter6.py use MqContextErrorCatch to convert a Python error into a pymkkernel error

if __name__ == "__main__":
  srv = MqFactoryC.Add(Filter6).New();
  try:
    srv.LinkCreate(sys.argv)
    srv.ProcessEvent(MqWaitOnEventE.FOREVER)
  except Exception as ex:
    srv.ErrorCatch(ex);
  finally:
    srv.Exit()

MkExceptionC

MkExceptionC - The default-exception of the Programming-Language-Micro-Kernel (PLMK)

The Programming-Language-Micro-Kernel (PLMK) provide with MkErrorC a complete error-handling with focus to support the "C" Programming-Language. The support include catch, raise, signal and attributes. In addition every Target-Programming-Language (TPL) add their own error-handling and the purpose of MkExceptionC is to integrate the MkErrorC into the Target-Programming-Language (TPL).

The default-exception MkExceptionC is used to connect the MkErrorC with the Target-Programming-Language (TPL) error-object.

The implementation of an exception depends heavily on the Target-Programming-Language (TPL), starting with no exception at all, for example. C, an exception as a class object, or as an exception as a global attribute.

Attention

ExceptionCheck

Checks if Exception is of type MkExceptionC and returns True or False

Example: test case to check KILL and RECOVER feature, check on MkExceptionC

      VAL = self.ReadBUF()
      cl = Client()
      cl.LinkCreate(self.ConfigGetStartAs())
      PID = cl.Send("W", "GPID@I")
      self.SysKill(PID, 9)
      RET = 0
      for i in [1, 2, 3]:
        try:
          RET = cl.Send("W", "ECOI:U@I", VAL)
        except MkExceptionC as ex:
          err = cl.ErrorCatch(ex)
          if (err.IsSOCKET()):
            err.Reset()
            cl.LinkConnect()
            continue
          else:
            err.Raise()
          err.Delete()
        break
      self.SendSTART()
      self.SendI32(RET)
Returns
the result of the check, True or False
Parameters
[in]exceptionthe exception object from Python, if None the global exception object is used