1 #pragma once
2 
3 /*
4  * Copyright (C) 2019 The Android Open Source Project
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  *      http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 
19 #if defined(__linux__)
20 
21 #include "sysdeps.h"
22 
23 #include <sys/epoll.h>
24 
25 #include <deque>
26 #include <list>
27 #include <mutex>
28 #include <unordered_map>
29 
30 #include <android-base/thread_annotations.h>
31 
32 #include "adb_unique_fd.h"
33 #include "fdevent.h"
34 
35 struct fdevent_context_epoll final : public fdevent_context {
36     fdevent_context_epoll();
37     virtual ~fdevent_context_epoll();
38 
39     virtual void Register(fdevent* fde) final;
40     virtual void Unregister(fdevent* fde) final;
41 
42     virtual void Set(fdevent* fde, unsigned events) final;
43 
44     virtual void Loop() final;
45     size_t InstalledCount() final;
46 
47   protected:
48     virtual void Interrupt() final;
49 
50   private:
51     unique_fd epoll_fd_;
52     unique_fd interrupt_fd_;
53     fdevent* interrupt_fde_ = nullptr;
54 };
55 
56 #endif  // defined(__linux__)
57