| /* |
| * Copyright 2018, 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 "interface_state.h" |
| #include "pollable.h" |
| #include "result.h" |
| |
| const char* interfaceStateToStr(InterfaceState state); |
| |
| /** Monitor network interfaces and provide notifications of changes to those |
| * interfaces. |
| */ |
| class Monitor : public Pollable { |
| public: |
| using OnInterfaceStateCallback = std::function<void (unsigned int index, |
| const char* name, |
| InterfaceState state)>; |
| Monitor(); |
| ~Monitor(); |
| |
| Result init(); |
| |
| void setOnInterfaceState(OnInterfaceStateCallback callback); |
| |
| // Pollable interface |
| void getPollData(std::vector<pollfd>* fds) const override; |
| Timestamp getTimeout() const override; |
| bool onReadAvailable(int fd, int* status) override; |
| bool onClose(int fd, int* status) override; |
| bool onTimeout(int* status) override; |
| |
| private: |
| Result openSocket(); |
| void closeSocket(); |
| void handleNewLink(const struct nlmsghdr* hdr); |
| |
| int mSocketFd; |
| OnInterfaceStateCallback mOnInterfaceStateCallback; |
| }; |
| |