Line data    Source code

       1              : // *****************************************************************************
       2              : /*!
       3              :   \file      src/UnitTest/QuietCerr.cpp
       4              :   \copyright 2012-2015 J. Bakosi,
       5              :              2016-2018 Los Alamos National Security, LLC.,
       6              :              2019-2021 Triad National Security, LLC.,
       7              :              2022-2025 J. Bakosi
       8              :              All rights reserved. See the LICENSE file for details.
       9              :   \brief     Charm++ nodegroup to quiet std::cerr in a thread-safe fashion
      10              :   \details   Charm++ nodegroup to quiet std::cerr in a thread-safe fashion.
      11              : */
      12              : // *****************************************************************************
      13              : 
      14              : #include <iostream>
      15              : #include <sstream>
      16              : 
      17              : #include "QuietCerr.hpp"
      18              : 
      19              : namespace tk {
      20              : 
      21              : #if defined(__clang__)
      22              :   #pragma clang diagnostic push
      23              :   #pragma clang diagnostic ignored "-Wmissing-variable-declarations"
      24              : #endif
      25              : 
      26              : //! std::tringstream used to quiet std::cerr's stream by redirecting to it
      27              : static std::stringstream cerr_quiet;
      28              : //! std::streambuf used to store state of std::cerr before redirecting it
      29              : static std::streambuf* cerr_old;
      30              : 
      31              : #if defined(__clang__)
      32              :   #pragma clang diagnostic pop
      33              : #endif
      34              : 
      35              : }
      36              : 
      37              : using tk::QuietCerr;
      38              : 
      39              : void
      40              : // cppcheck-suppress unusedFunction
      41           20 : QuietCerr::quiet()
      42              : // *****************************************************************************
      43              : //!   Section "Initializations at Program Startup" at in the Charm++ manual
      44              : //!   http://charm.cs.illinois.edu/manuals/html/charm++/manual.html. Since it
      45              : //!   is executed once every logical node, it is thread-safe.
      46              : // *****************************************************************************
      47              : {
      48           20 :   tk::cerr_old = std::cerr.rdbuf( tk::cerr_quiet.rdbuf() );
      49           20 : }
      50              : 
      51            0 : QuietCerr::~QuietCerr()
      52              : // *****************************************************************************
      53              : // Destructor: restore std::cerr's stream state
      54              : // *****************************************************************************
      55              : {
      56            0 :   std::cerr.rdbuf( tk::cerr_old );
      57            0 : }
      58              : 
      59              : #include "NoWarning/quietcerr.def.h"