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