]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | /* | |
31f18b77 | 4 | * Copyright (C) 2017 Red Hat Inc. |
7c673cae FG |
5 | */ |
6 | ||
7 | ||
8 | #pragma once | |
9 | ||
10 | #include <chrono> | |
11 | #include <mutex> | |
12 | #include <condition_variable> | |
13 | #include <thread> | |
14 | #include <functional> | |
15 | ||
16 | namespace crimson { | |
17 | using std::chrono::duration_cast; | |
18 | using std::chrono::milliseconds; | |
19 | ||
20 | // runs a given simple function object waiting wait_period | |
21 | // milliseconds between; the destructor stops the other thread | |
22 | // immediately | |
23 | class RunEvery { | |
24 | using Lock = std::unique_lock<std::mutex>; | |
25 | using Guard = std::lock_guard<std::mutex>; | |
26 | using TimePoint = std::chrono::steady_clock::time_point; | |
27 | ||
28 | bool finishing = false; | |
29 | std::chrono::milliseconds wait_period; | |
30 | std::function<void()> body; | |
31 | std::mutex mtx; | |
32 | std::condition_variable cv; | |
33 | ||
34 | // put threads last so all other variables are initialized first | |
35 | ||
36 | std::thread thd; | |
37 | ||
38 | public: | |
39 | ||
40 | #ifdef ADD_MOVE_SEMANTICS | |
41 | RunEvery(); | |
42 | #endif | |
43 | ||
44 | template<typename D> | |
45 | RunEvery(D _wait_period, | |
46 | std::function<void()> _body) : | |
47 | wait_period(duration_cast<milliseconds>(_wait_period)), | |
48 | body(_body) | |
49 | { | |
50 | thd = std::thread(&RunEvery::run, this); | |
51 | } | |
52 | ||
53 | RunEvery(const RunEvery& other) = delete; | |
54 | RunEvery& operator=(const RunEvery& other) = delete; | |
55 | RunEvery(RunEvery&& other) = delete; | |
56 | #ifdef ADD_MOVE_SEMANTICS | |
57 | RunEvery& operator=(RunEvery&& other); | |
58 | #else | |
59 | RunEvery& operator=(RunEvery&& other) = delete; | |
60 | #endif | |
61 | ||
62 | ~RunEvery(); | |
63 | ||
31f18b77 FG |
64 | void join(); |
65 | ||
7c673cae FG |
66 | protected: |
67 | ||
68 | void run(); | |
69 | }; | |
70 | } |