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- /*
- * Copyright 2016-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 <exception>
- #include <typeinfo>
- namespace folly {
- namespace exception_tracer {
- namespace detail {
- /*
- * Unfortunately due to ambiguous nature of exception specifiers,
- * standard does not allow them to appear in typedefs or alias-declarations.
- * We, however, want callbacks to be exception safe.
- * This dummies are an ugly workaround that problem.
- */
- void dummyCxaThrow(void*, std::type_info*, void (*)(void*)) noexcept;
- void dummyCxaBeginCatch(void*) noexcept;
- void dummyCxaRethrow() noexcept;
- void dummyCxaEndCatch() noexcept;
- void dummyRethrowException(std::exception_ptr) noexcept;
- } // namespace detail
- using CxaThrowType = decltype(&detail::dummyCxaThrow);
- using CxaBeginCatchType = decltype(&detail::dummyCxaBeginCatch);
- using CxaRethrowType = decltype(&detail::dummyCxaRethrow);
- using CxaEndCatchType = decltype(&detail::dummyCxaEndCatch);
- using RethrowExceptionType = decltype(&detail::dummyRethrowException);
- void registerCxaThrowCallback(CxaThrowType callback);
- void registerCxaBeginCatchCallback(CxaBeginCatchType callback);
- void registerCxaRethrowCallback(CxaRethrowType callback);
- void registerCxaEndCatchCallback(CxaEndCatchType callback);
- void registerRethrowExceptionCallback(RethrowExceptionType callback);
- } // namespace exception_tracer
- } // namespace folly
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