Use the latest fbjni

libs/fbjni/cxx/lyra/lyra_exceptions.cpp

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+/**
+ * Copyright 2004-present, Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <lyra/lyra_exceptions.h>
+
+#include <cstdlib>
+#include <exception>
+#include <sstream>
+#include <typeinfo>
+
+#include <fbjni/detail/Log.h>
+
+namespace facebook {
+namespace lyra {
+
+using namespace detail;
+
+namespace {
+std::terminate_handler gTerminateHandler;
+
+const ExceptionTraceHolder* getExceptionTraceHolder(std::exception_ptr ptr) {
+  try {
+    std::rethrow_exception(ptr);
+  } catch (const ExceptionTraceHolder& holder) {
+    return &holder;
+  } catch (...) {
+    return nullptr;
+  }
+}
+
+void logExceptionAndAbort() {
+  if (auto ptr = std::current_exception()) {
+    FBJNI_LOGE("Uncaught exception: %s", toString(ptr).c_str());
+    auto trace = getExceptionTraceHolder(ptr);
+    if (trace) {
+      logStackTrace(getStackTraceSymbols(trace->stackTrace_));
+    }
+  }
+  if (gTerminateHandler) {
+    gTerminateHandler();
+  } else {
+    FBJNI_LOGF("Uncaught exception and no gTerminateHandler set");
+  }
+}
+
+const std::vector<InstructionPointer> emptyTrace;
+} // namespace
+
+ExceptionTraceHolder::~ExceptionTraceHolder() {}
+
+detail::ExceptionTraceHolder::ExceptionTraceHolder() {
+  // TODO(cjhopman): This should be done more safely (i.e. use preallocated space, etc.).
+  stackTrace_.reserve(128);
+  getStackTrace(stackTrace_, 1);
+}
+
+
+void ensureRegisteredTerminateHandler() {
+  static auto initializer = (gTerminateHandler = std::set_terminate(logExceptionAndAbort));
+  (void)initializer;
+}
+
+const std::vector<InstructionPointer>& getExceptionTrace(std::exception_ptr ptr) {
+  auto holder = getExceptionTraceHolder(ptr);
+  return holder ? holder->stackTrace_ : emptyTrace;
+}
+
+std::string toString(std::exception_ptr ptr) {
+  if (!ptr) {
+    return "No exception";
+  }
+
+  try {
+    std::rethrow_exception(ptr);
+  } catch (std::exception& e) {
+    std::stringstream ss;
+    ss << typeid(e).name() << ": " << e.what();
+    return ss.str();
+  } catch (...) {
+    return "Unknown exception";
+  }
+}
+
+}
+}