90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
/*
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* Copyright (c) 2004-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the LICENSE
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* file in the root directory of this source tree.
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*
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*/
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#include <lyra/lyra_exceptions.h>
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#include <cstdlib>
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#include <exception>
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#include <sstream>
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#include <typeinfo>
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#include <fbjni/detail/Log.h>
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namespace facebook {
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namespace lyra {
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using namespace detail;
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namespace {
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std::terminate_handler gTerminateHandler;
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const ExceptionTraceHolder* getExceptionTraceHolder(std::exception_ptr ptr) {
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try {
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std::rethrow_exception(ptr);
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} catch (const ExceptionTraceHolder& holder) {
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return &holder;
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} catch (...) {
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return nullptr;
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}
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}
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void logExceptionAndAbort() {
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if (auto ptr = std::current_exception()) {
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FBJNI_LOGE("Uncaught exception: %s", toString(ptr).c_str());
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auto trace = getExceptionTraceHolder(ptr);
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if (trace) {
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logStackTrace(getStackTraceSymbols(trace->stackTrace_));
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}
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}
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if (gTerminateHandler) {
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gTerminateHandler();
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} else {
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FBJNI_LOGF("Uncaught exception and no gTerminateHandler set");
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}
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}
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const std::vector<InstructionPointer> emptyTrace;
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} // namespace
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ExceptionTraceHolder::~ExceptionTraceHolder() {}
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detail::ExceptionTraceHolder::ExceptionTraceHolder() {
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// TODO(cjhopman): This should be done more safely (i.e. use preallocated space, etc.).
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stackTrace_.reserve(128);
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getStackTrace(stackTrace_, 1);
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}
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void ensureRegisteredTerminateHandler() {
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static auto initializer = (gTerminateHandler = std::set_terminate(logExceptionAndAbort));
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(void)initializer;
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}
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const std::vector<InstructionPointer>& getExceptionTrace(std::exception_ptr ptr) {
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auto holder = getExceptionTraceHolder(ptr);
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return holder ? holder->stackTrace_ : emptyTrace;
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}
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std::string toString(std::exception_ptr ptr) {
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if (!ptr) {
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return "No exception";
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}
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try {
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std::rethrow_exception(ptr);
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} catch (std::exception& e) {
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std::stringstream ss;
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ss << typeid(e).name() << ": " << e.what();
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return ss.str();
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} catch (...) {
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return "Unknown exception";
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}
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}
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}
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}
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