35 lines
1002 B
C++
35 lines
1002 B
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <folly/portability/Unistd.h>
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namespace folly {
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/**
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* Calls getpid() and returns the returned value, with a thread-safe
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* cache in front. The cache is updated in the child after fork().
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*
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* Thread-safety: MT-safe.
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*
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* Async-signal-safety: The first call is AS-unsafe but subsequent
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* calls are AS-safe.
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*/
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pid_t get_cached_pid();
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} // namespace folly
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