forked from lthn/blockchain
117 lines
4.4 KiB
C++
117 lines
4.4 KiB
C++
// Copyright (c) 2019, Zano Project
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// Copyright (c) 2006-2019, Andrey N. Sabelnikov, www.sabelnikov.net
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the Andrey N. Sabelnikov nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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#pragma once
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#define COMBINE1(X,Y) X##Y // helper macro
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#define COMBINE(X,Y) COMBINE1(X,Y)
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#define _STR(X) #X
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#define STR(X) _STR(X)
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#if defined(_MSC_VER)
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#define LOCAL_FUNCTION_DEF__ __FUNCTION__
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#define UNUSED_ATTRIBUTE
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#else
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#define LOCAL_FUNCTION_DEF__ __FUNCTION__
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#define UNUSED_ATTRIBUTE __attribute__((unused))
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#endif
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#define LOCATION_SS "[" << LOCAL_FUNCTION_DEF__ << ("] @ " __FILE__ ":" STR(__LINE__))
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#define LOCATION_STR (std::string("[") + LOCAL_FUNCTION_DEF__ + "] @ " __FILE__ ":" STR(__LINE__))
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//
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// Try-catch helpers
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//
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#define TRY_ENTRY() try {
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#define CATCH_ALL_DO_NOTHING() }catch(...) {}
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#define CATCH_ENTRY_CUSTOM(location, custom_code, return_val) } \
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catch(const std::exception& ex) \
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{ \
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(void)(ex); \
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custom_code; \
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LOG_ERROR("Exception at [" << location << "], what=" << ex.what()); \
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return return_val; \
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} \
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catch(...) \
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{ \
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custom_code; \
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LOG_ERROR("Exception at [" << location << "], generic exception \"...\""); \
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return return_val; \
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}
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#define CATCH_ENTRY(location, return_val) CATCH_ENTRY_CUSTOM(location, (void)0, return_val)
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#define CATCH_ENTRY2(return_val) CATCH_ENTRY_CUSTOM(LOCATION_SS, (void)0, return_val)
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#define CATCH_ENTRY_CUSTOM2(custom_code, return_val) CATCH_ENTRY_CUSTOM(LOCATION_SS, custom_code, return_val)
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#define CATCH_ENTRY_L0(location, return_val) CATCH_ENTRY(location, return_val)
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#define CATCH_ENTRY_L1(location, return_val) CATCH_ENTRY(location, return_val)
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#define CATCH_ENTRY_L2(location, return_val) CATCH_ENTRY(location, return_val)
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#define CATCH_ENTRY_L3(location, return_val) CATCH_ENTRY(location, return_val)
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#define CATCH_ENTRY_L4(location, return_val) CATCH_ENTRY(location, return_val)
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/// @brief Catches TRY_ENTRY without returning
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/// @details Useful within a dtor - but only if nested within another try block
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/// (since we can still potentially throw here). See NESTED_*ENTRY()
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/// @todo Exception dispatcher class
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#define CATCH_ENTRY_NO_RETURN_CUSTOM(location, custom_code) } \
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catch(const std::exception& ex) \
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{ \
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(void)(ex); \
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LOG_ERROR("Exception at [" << location << "], what=" << ex.what()); \
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custom_code; \
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} \
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catch(...) \
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{ \
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LOG_ERROR("Exception at [" << location << "], generic exception \"...\""); \
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custom_code; \
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}
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#define CATCH_ENTRY_NO_RETURN() CATCH_ENTRY_NO_RETURN_CUSTOM(LOCATION_SS, (void)0)
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#define CATCH_ENTRY_WITH_FORWARDING_EXCEPTION() } \
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catch(const std::exception& ex) \
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{ \
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LOG_ERROR("Exception at [" << LOCATION_SS << "], what=" << ex.what()); \
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throw std::runtime_error(std::string("[EXCEPTION FORWARDED]: ") + ex.what()); \
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} \
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catch(...) \
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{ \
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LOG_ERROR("Exception at [" << LOCATION_SS << "], generic unknown exception \"...\""); \
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throw std::runtime_error("[EXCEPTION FORWARDED]"); \
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}
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#define NESTED_TRY_ENTRY() try { TRY_ENTRY();
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#define NESTED_CATCH_ENTRY(location) \
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CATCH_ENTRY_NO_RETURN_CUSTOM(location, {}); \
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} catch (...) {}
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