X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7bc01999f5003e51cc1d12f93647999a1a143f23..78edc5d868c7cb88107abcdc887180ff15c5228f:/src/xbt/exception.cpp diff --git a/src/xbt/exception.cpp b/src/xbt/exception.cpp index 230e330c0d..d2712eef07 100644 --- a/src/xbt/exception.cpp +++ b/src/xbt/exception.cpp @@ -1,5 +1,4 @@ -/* Copyright (c) 2005-2016. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2005-2018. 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. */ @@ -14,55 +13,106 @@ #include #include +#include "simgrid/Exception.hpp" #include -#include +#include #include #include -extern "C" { 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(XBT_THROW_POINT), message); + xbt_free(message); + e.category = errcat; + e.value = value; + throw e; +} + +/** @brief shows an exception content and the associated stack if available */ +void xbt_ex_display(xbt_ex_t* e) +{ + simgrid::xbt::log_exception(xbt_log_priority_critical, "UNCAUGHT EXCEPTION", *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"; + } + return "INVALID ERROR"; } namespace simgrid { namespace xbt { -WithContextException::~WithContextException() {} - -void logException( - e_xbt_log_priority_t prio, - const char* context, std::exception const& exception) +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->processName().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) { - auto backtrace = simgrid::xbt::resolveBacktrace( - with_context->backtrace().data(), with_context->backtrace().size()); + if (with_context != nullptr && not simgrid::config::get_value("exception/cutpath")) { + auto backtrace = simgrid::xbt::resolve_backtrace(with_context->throw_point().backtrace_.data(), + with_context->throw_point().backtrace_.size()); for (std::string const& s : backtrace) XBT_LOG(prio, " -> %s", s.c_str()); } // Do we have a nested exception? - auto with_nested = dynamic_cast(&exception); + auto* with_nested = dynamic_cast(&exception); if (with_nested == nullptr || with_nested->nested_ptr() == nullptr) return; try { with_nested->rethrow_nested(); } catch (std::exception& nested_exception) { - logException(prio, "Caused by", nested_exception); + log_exception(prio, "Caused by", nested_exception); } // We could catch nested_exception or WithContextException but we don't bother: catch (...) { @@ -76,7 +126,11 @@ void logException( static void showBacktrace(std::vector& bt) { - std::vector res = resolveBacktrace(&bt[0], bt.size()); + if (simgrid::config::get_value("exception/cutpath")) { + XBT_LOG(xbt_log_priority_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()); @@ -90,7 +144,7 @@ static void handler() // an uncaught exception static std::atomic_flag lock = ATOMIC_FLAG_INIT; if (lock.test_and_set()) { - XBT_ERROR("Multiple uncaught exceptions"); + XBT_ERROR("Handling an exception raised an exception. Bailing out."); std::abort(); } @@ -103,7 +157,7 @@ static void handler() // We manage C++ exception ourselves catch (std::exception& e) { - logException(xbt_log_priority_critical, "Uncaught exception", e); + log_exception(xbt_log_priority_critical, "Uncaught exception", e); showBacktrace(bt); std::abort(); } @@ -122,18 +176,22 @@ static void handler() } -void installExceptionHandler() +void install_exception_handler() { static std::once_flag handler_flag; std::call_once(handler_flag, [] { previous_terminate_handler = std::set_terminate(handler); }); } - +// deprecated +void logException(e_xbt_log_priority_t priority, const char* context, std::exception const& exception) +{ + log_exception(priority, context, exception); } +void installExceptionHandler() +{ + install_exception_handler(); } -void xbt_set_terminate() -{ - simgrid::xbt::installExceptionHandler(); +} // namespace xbt }