X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/266c603229beb53e39c935be162065bb8280da48..72884f9c682441d0a9de0f2df63b47cde7822058:/src/xbt/exception.cpp diff --git a/src/xbt/exception.cpp b/src/xbt/exception.cpp index 7e4366a7c4..9fadba9467 100644 --- a/src/xbt/exception.cpp +++ b/src/xbt/exception.cpp @@ -1,4 +1,4 @@ -/* Copyright (c) 2005-2019. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2005-2021. The SimGrid Team. All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ @@ -8,64 +8,62 @@ #include #include +#include #include #include +#include XBT_LOG_EXTERNAL_CATEGORY(xbt); XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_exception, xbt, "Exceptions"); -void _xbt_throw(char* message, int value, const char* file, int line, const char* func) +void _xbt_throw(char* message, const char* file, int line, const char* func) { simgrid::Exception e( simgrid::xbt::ThrowPoint(file, line, func, simgrid::xbt::Backtrace(), xbt_procname(), xbt_getpid()), message ? message : ""); xbt_free(message); - e.value = value; throw e; } namespace simgrid { namespace xbt { -ImpossibleError::~ImpossibleError() = default; -UnimplementedError::~UnimplementedError() = default; +ImpossibleError::~ImpossibleError() = default; +InitializationError::~InitializationError() = default; +UnimplementedError::~UnimplementedError() = default; void log_exception(e_xbt_log_priority_t prio, const char* context, std::exception const& exception) { try { - auto name = simgrid::xbt::demangle(typeid(exception).name()); + std::string name = boost::core::demangle(typeid(exception).name()); auto* with_context = dynamic_cast(&exception); - if (with_context != nullptr) - XBT_LOG(prio, "%s %s by %s/%d: %s", context, name.get(), with_context->throw_point().procname_.c_str(), + if (with_context != nullptr) { + XBT_LOG(prio, "%s %s by %s/%d: %s", context, name.c_str(), with_context->throw_point().procname_.c_str(), with_context->throw_point().pid_, exception.what()); - else - XBT_LOG(prio, "%s %s: %s", context, name.get(), exception.what()); - - // Do we have a backtrace? - if (with_context != nullptr && not simgrid::config::get_value("exception/cutpath")) { - auto backtrace = with_context->resolve_backtrace(); - XBT_LOG(prio, " -> %s", backtrace.c_str()); + // Do we have a backtrace? + if (not simgrid::config::get_value("exception/cutpath")) { + auto backtrace = with_context->resolve_backtrace(); + XBT_LOG(prio, "Backtrace:\n%s", backtrace.c_str()); + } + } else { + XBT_LOG(prio, "%s %s: %s", context, name.c_str(), exception.what()); } + } catch (...) { + // Don't log exceptions we got when trying to log exception + XBT_LOG(prio, "Ignoring exception caught while while trying to log an exception!"); + } + try { // Do we have a nested exception? auto* with_nested = dynamic_cast(&exception); - if (with_nested == nullptr || with_nested->nested_ptr() == nullptr) - return; - try { + if (with_nested != nullptr && with_nested->nested_ptr() != nullptr) with_nested->rethrow_nested(); - } - catch (std::exception& nested_exception) { - log_exception(prio, "Caused by", nested_exception); - } + } catch (const std::exception& nested_exception) { + log_exception(prio, "Caused by", nested_exception); + } catch (...) { // We could catch nested_exception or WithContextException but we don't bother: - catch (...) { - XBT_LOG(prio, "Caused by an unknown exception"); - } - } - catch (...) { - // Don't log exceptions we got when trying to log exception - XBT_LOG(prio, "Ignoring exception caught while while trying to log an exception!"); + XBT_LOG(prio, "Caused by an unknown exception"); } } @@ -76,13 +74,12 @@ static void show_backtrace(const simgrid::xbt::Backtrace& bt) return; } std::string res = bt.resolve(); - XBT_CRITICAL("Current backtrace:"); - XBT_CRITICAL(" -> %s", res.c_str()); + XBT_CRITICAL("Current backtrace:\n%s", res.c_str()); } static std::terminate_handler previous_terminate_handler = nullptr; -static void handler() +XBT_ATTRIB_NORETURN static void handler() { // Avoid doing crazy things if we get an uncaught exception inside an uncaught exception static std::atomic_flag lock = ATOMIC_FLAG_INIT; @@ -91,45 +88,39 @@ static void handler() std::abort(); } - // Get the current backtrace and exception - auto e = std::current_exception(); - simgrid::xbt::Backtrace bt = simgrid::xbt::Backtrace(); + // Get the current exception and show backtrace try { - std::rethrow_exception(e); + std::rethrow_exception(std::current_exception()); } // Parse error are handled differently, as the call stack does not matter, only the file location - catch (simgrid::ParseError& e) { + catch (const simgrid::ParseError& e) { XBT_ERROR("%s", e.what()); XBT_ERROR("Exiting now."); std::abort(); } // We manage C++ exception ourselves - catch (std::exception& e) { + catch (const std::exception& e) { log_exception(xbt_log_priority_critical, "Uncaught exception", e); - show_backtrace(bt); - std::abort(); } catch (const simgrid::ForcefulKillException&) { XBT_ERROR("Received a ForcefulKillException at the top-level exception handler. Maybe a Java->C++ call that is not " "protected in a try/catch?"); - show_backtrace(bt); } // We don't know how to manage other exceptions catch (...) { // If there was another handler let's delegate to it - if (previous_terminate_handler) + if (previous_terminate_handler) { previous_terminate_handler(); - else { - XBT_ERROR("Unknown uncaught exception"); - show_backtrace(bt); - std::abort(); + XBT_ERROR("Unexpected return from delegated terminate handler"); } + XBT_ERROR("Unknown uncaught exception"); } - XBT_INFO("BAM"); + show_backtrace(simgrid::xbt::Backtrace()); + std::abort(); } void install_exception_handler()