X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/375fd7283ef0853cc5d023747efc9f3821ba97ca..1cfe59d9943d547557996152887b4af3a8a5f17e:/src/xbt/exception.cpp diff --git a/src/xbt/exception.cpp b/src/xbt/exception.cpp index 9d5ad43293..73f18098f6 100644 --- a/src/xbt/exception.cpp +++ b/src/xbt/exception.cpp @@ -1,51 +1,91 @@ -/* Copyright (c) 2005-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2005-2019. 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. */ -#include - -#include -#include -#include -#include -#include -#include -#include - -#include +#include "simgrid/Exception.hpp" +#include "src/kernel/context/Context.hpp" #include -#include -#include -#include #include +#include +#include + XBT_LOG_EXTERNAL_CATEGORY(xbt); XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_exception, xbt, "Exceptions"); +// DO NOT define ~xbt_ex() in exception.hpp. +// Defining it here ensures that xbt_ex is defined only in libsimgrid, but not in libsimgrid-java. +// Doing otherwise naturally breaks things (at least on freebsd with clang). + +xbt_ex::~xbt_ex() = default; + +void _xbt_throw(char* message, xbt_errcat_t errcat, int value, const char* file, int line, const char* func) +{ + xbt_ex e(simgrid::xbt::ThrowPoint(file, line, func, simgrid::xbt::Backtrace(), xbt_procname(), xbt_getpid()), + message); + xbt_free(message); + e.category = errcat; + e.value = value; + throw e; +} + +/** @brief returns a short name for the given exception category */ +const char* xbt_ex_catname(xbt_errcat_t cat) +{ + switch (cat) { + case unknown_error: + return "unknown error"; + case arg_error: + return "invalid argument"; + case bound_error: + return "out of bounds"; + case mismatch_error: + return "mismatch"; + case not_found_error: + return "not found"; + case system_error: + return "system error"; + case network_error: + return "network error"; + case timeout_error: + return "timeout"; + case cancel_error: + return "action canceled"; + case thread_error: + return "thread error"; + case host_error: + return "host failed"; + case tracing_error: + return "tracing error"; + case io_error: + return "io error"; + case vm_error: + return "vm error"; + default: + return "INVALID ERROR"; + } +} + namespace simgrid { namespace xbt { -WithContextException::~WithContextException() = 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()); - auto* with_context = dynamic_cast(&exception); + auto* with_context = dynamic_cast(&exception); if (with_context != nullptr) - XBT_LOG(prio, "%s %s by %s/%d: %s", context, name.get(), with_context->process_name().c_str(), - with_context->pid(), exception.what()); + XBT_LOG(prio, "%s %s by %s/%d: %s", context, name.get(), 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 = - simgrid::xbt::resolve_backtrace(with_context->backtrace().data(), with_context->backtrace().size()); - for (std::string const& s : backtrace) - XBT_LOG(prio, " -> %s", s.c_str()); + auto backtrace = with_context->resolve_backtrace(); + XBT_LOG(prio, " -> %s", backtrace.c_str()); } // Do we have a nested exception? @@ -65,19 +105,19 @@ void log_exception(e_xbt_log_priority_t prio, const char* context, std::exceptio } 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!"); } } -static void showBacktrace(std::vector& bt) +static void show_backtrace(const simgrid::xbt::Backtrace& bt) { if (simgrid::config::get_value("exception/cutpath")) { - XBT_LOG(xbt_log_priority_critical, "Display of current backtrace disabled by --cfg=exception/cutpath."); + XBT_CRITICAL("Display of current backtrace disabled by --cfg=exception/cutpath."); return; } - std::vector res = resolve_backtrace(&bt[0], bt.size()); - XBT_LOG(xbt_log_priority_critical, "Current backtrace:"); - for (std::string const& s : res) - XBT_LOG(xbt_log_priority_critical, " -> %s", s.c_str()); + std::string res = bt.resolve(); + XBT_CRITICAL("Current backtrace:"); + XBT_CRITICAL(" -> %s", res.c_str()); } static std::terminate_handler previous_terminate_handler = nullptr; @@ -94,7 +134,7 @@ static void handler() // Get the current backtrace and exception auto e = std::current_exception(); - auto bt = backtrace(); + simgrid::xbt::Backtrace bt = simgrid::xbt::Backtrace(); try { std::rethrow_exception(e); } @@ -102,10 +142,17 @@ static void handler() // We manage C++ exception ourselves catch (std::exception& e) { log_exception(xbt_log_priority_critical, "Uncaught exception", e); - showBacktrace(bt); + 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 @@ -113,11 +160,10 @@ static void handler() previous_terminate_handler(); else { XBT_ERROR("Unknown uncaught exception"); - showBacktrace(bt); + show_backtrace(bt); std::abort(); } } - } void install_exception_handler() @@ -127,15 +173,19 @@ void install_exception_handler() previous_terminate_handler = std::set_terminate(handler); }); } -// deprecated -void logException(e_xbt_log_priority_t priority, const char* context, std::exception const& exception) + +} // namespace xbt +} // namespace simgrid + +void xbt_throw_impossible(const char* file, int line, const char* func) { - log_exception(priority, context, exception); + std::stringstream ss; + ss << file << ":" << line << ":" << func << ": The Impossible Did Happen (yet again). Please report this bug."; + throw std::runtime_error(ss.str()); } -void installExceptionHandler() +void xbt_throw_unimplemented(const char* file, int line, const char* func) { - install_exception_handler(); -} - -} // namespace xbt + std::stringstream ss; + ss << file << ":" << line << ":" << func << ": Feature unimplemented yet. Please report this bug."; + throw std::runtime_error(ss.str()); }