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- /*
- * Copyright 2013-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.
- */
- #pragma once
- #include <functional>
- namespace folly {
- namespace symbolizer {
- /**
- * Install handler for fatal signals. The list of signals being handled is in
- * SignalHandler.cpp.
- *
- * The handler will dump signal and time information followed by a stack trace
- * to stderr, and then call the callbacks registered below.
- */
- void installFatalSignalHandler();
- /**
- * Add a callback to be run when receiving a fatal signal. They will also
- * be called by LOG(FATAL) and abort() (as those raise SIGABRT internally).
- *
- * These callbacks must be async-signal-safe, so don't even think of using
- * LOG(...) or printf or malloc / new or doing anything even remotely fun.
- *
- * All these fatal callback must be added before calling
- * installFatalSignalCallbacks(), below.
- */
- typedef void (*SignalCallback)();
- void addFatalSignalCallback(SignalCallback callback);
- /**
- * Install the fatal signal callbacks; fatal signals will call these
- * callbacks in the order in which they were added.
- */
- void installFatalSignalCallbacks();
- } // namespace symbolizer
- } // namespace folly
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