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File indexing completed on 2025-09-17 08:59:59
0001 //------------------------------- -*- C++ -*- -------------------------------// 0002 // Copyright Celeritas contributors: see top-level COPYRIGHT file for details 0003 // SPDX-License-Identifier: (Apache-2.0 OR MIT) 0004 //---------------------------------------------------------------------------// 0005 //! \file geocel/ScopedGeantExceptionHandler.hh 0006 //---------------------------------------------------------------------------// 0007 #pragma once 0008 0009 #include <memory> 0010 0011 #include "corecel/Config.hh" 0012 0013 #include "corecel/Macros.hh" 0014 0015 class G4VExceptionHandler; 0016 0017 namespace celeritas 0018 { 0019 //---------------------------------------------------------------------------// 0020 /*! 0021 * Install and clear a Geant exception handler during this class lifetime. 0022 * 0023 * Note that creating a \c G4RunManagerKernel resets the exception 0024 * handler, so errors thrown during setup *CANNOT* be caught by Celeritas, and 0025 * this class can only be used after creating the \c G4RunManager. 0026 * 0027 * \note This error is suitable only for single-threaded runs and multithreaded 0028 * manager thread. The exceptions it throws will terminate a Geant4 worker 0029 * thread. 0030 */ 0031 class ScopedGeantExceptionHandler 0032 { 0033 public: 0034 // Construct exception handler 0035 ScopedGeantExceptionHandler(); 0036 0037 // Clear on destruction 0038 ~ScopedGeantExceptionHandler(); 0039 //!@{ 0040 //! Prevent copying and moving for RAII class 0041 CELER_DELETE_COPY_MOVE(ScopedGeantExceptionHandler); 0042 //!@} 0043 0044 private: 0045 #if CELERITAS_USE_GEANT4 0046 G4VExceptionHandler* previous_{nullptr}; 0047 std::unique_ptr<G4VExceptionHandler> current_; 0048 #endif 0049 }; 0050 0051 #if !CELERITAS_USE_GEANT4 0052 //!@{ 0053 //! Do nothing if Geant4 is disabled (source file will not be compiled) 0054 inline ScopedGeantExceptionHandler::ScopedGeantExceptionHandler() {} 0055 inline ScopedGeantExceptionHandler::~ScopedGeantExceptionHandler() {} 0056 //!@} 0057 #endif 0058 0059 //---------------------------------------------------------------------------// 0060 } // namespace celeritas
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