53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
/*
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* Copyright (C) 2021 The Android Open Source Project
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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 <android-base/macros.h>
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#include <functional>
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namespace android::nlinterceptor {
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/**
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* Handy-dandy helper to get the size of a statically initialized array.
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*
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* \param N the array to get the size of.
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* \return the size of the array.
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*/
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template <typename T, size_t N>
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size_t countof(T (&)[N]) {
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return N;
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}
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/**
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* Helper to check if socket is readable (POLLIN is set).
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*
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* \param revents pollfd.revents value to check.
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* \return true if socket is ready to read.
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*/
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bool isSocketReadable(short revents);
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/**
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* Helper to check if socket is bad (POLLERR, POLLHUP or POLLNVAL is set).
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*
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* \param revents pollfd.revents value to check.
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* \return true if socket is bad.
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*/
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bool isSocketBad(short revents);
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} // namespace android::nlinterceptor
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