Teuchos_ErrorPolling.hpp

00001 // @HEADER
00002 // ***********************************************************************
00003 // 
00004 //                    Teuchos: Common Tools Package
00005 //                 Copyright (2004) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #ifndef TEUCHOS_ERRORPOLLING_H
00030 #define TEUCHOS_ERRORPOLLING_H
00031 
00032 #include "Teuchos_ConfigDefs.hpp"
00033 #include "Teuchos_TestForException.hpp"
00034 
00038 
00039 namespace Teuchos
00040 {
00041   class MPIComm;
00042 
00070   class ErrorPolling
00071   {
00072   public:
00079     static void reportFailure(const MPIComm& comm);
00080     
00087     static bool pollForFailures(const MPIComm& comm);
00088     
00090     static void enable() {isActive()=true;}
00091 
00093     static void disable() {isActive()=false;}
00094 
00095   private:
00097     static bool& isActive() {static bool rtn = true; return rtn;}
00098   };
00099 
00107 #define TEUCHOS_POLL_FOR_FAILURES(comm)                                  \
00108   TEST_FOR_EXCEPTION(Teuchos::ErrorPolling::pollForFailures(comm), \
00109                      std::runtime_error,                                     \
00110                      "off-processor error detected by proc=" << (comm).getRank());
00111 }
00112 
00114 
00115 #endif

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