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TGo4CancelException.cxx
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1 // $Id: TGo4CancelException.cxx 2627 2019-10-01 08:02:45Z linev $
2 //-----------------------------------------------------------------------
3 // The GSI Online Offline Object Oriented (Go4) Project
4 // Experiment Data Processing at EE department, GSI
5 //-----------------------------------------------------------------------
6 // Copyright (C) 2000- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
7 // Planckstr. 1, 64291 Darmstadt, Germany
8 // Contact: http://go4.gsi.de
9 //-----------------------------------------------------------------------
10 // This software can be used under the license agreements as stated
11 // in Go4License.txt file which is part of the distribution.
12 //-----------------------------------------------------------------------
13 
14 #include "TGo4CancelException.h"
15 
16 #include "TThread.h"
17 #include "TGo4Thread.h"
18 
19 #include "TGo4Log.h"
20 #include "TGo4ThreadHandler.h"
21 #include "TGo4Runnable.h"
22 
24  :TGo4ThreadException(right)
25 {
26  GO4TRACE((14,"TGo4CancelException::TGo4CancelException() copy constructor",__LINE__, __FILE__));
27 }
28 
29 TGo4CancelException::TGo4CancelException (TGo4Runnable* runnable, const char* threadname)
30 : TGo4ThreadException(runnable, threadname)
31 {
32  GO4TRACE((14,"TGo4CancelException::TGo4CancelException(TGo4Runnable*, const char*) constructor",__LINE__, __FILE__));
33  fxDescription= "!!!-- Go4 Cancel Exception --!!!";
34 }
35 
36 
38 {
39  GO4TRACE((14,"TGo4CancelException::~TGo4CancelException() destructor",__LINE__, __FILE__));
40 }
41 
42 
44 {
45  GO4TRACE((14,"TGo4CancelException::operator=",__LINE__, __FILE__));
46  if (&right!=this)
47  {
48  GO4TRACE((13,"TGo4CancelException::operator= processing copy",__LINE__, __FILE__));
49  TGo4ThreadException::operator=(right); // copy base class members
50  // put additional member copies here...
51  return *this;
52  }
53  else
54  {
55  // copy is already source object
56  GO4TRACE((13,"TGo4CancelException::operator= source and destination objects are identical",__LINE__, __FILE__));
57  return *this;
58  }
59 }
60 
62 {
63  GO4TRACE((14,"TGo4CancelException::Handle()",__LINE__, __FILE__));
64  if(GetThreadName()==0)
65  // no threadname specified, operate on thread of runnable
66  {
67  GO4TRACE((13,"TGo4CancelException::Handle() -- canceling thread of runnable",__LINE__, __FILE__));
69  }
70  else
71  // threadname given, use thread handler to cancel
72  {
73  GO4TRACE((13,"TGo4CancelException::Handle() -- canceling thread by name",__LINE__, __FILE__));
75  }
76  TThread::CancelPoint(); // if thread cancels itself, this is necessary for proper cancellation:
77  return 0;
78 }
TGo4ThreadException & operator=(const TGo4ThreadException &right)
const char * GetThreadName()
TGo4Thread * GetThread() const
Definition: TGo4Runnable.h:45
Bool_t Cancel()
Definition: TGo4Thread.cxx:187
TGo4Runnable * fxRunnable
TGo4CancelException & operator=(const TGo4CancelException &right)
Bool_t Cancel(const char *thname)
#define GO4TRACE(X)
Definition: TGo4Log.h:26
TGo4ThreadHandler * fxThreadHandler
TString fxDescription
Definition: TGo4Exception.h:38