Mir
action_queue.h
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1 /*
2  * Copyright © 2015 Canonical Ltd.
3  *
4  * This program is free software: you can redistribute it and/or modify it
5  * under the terms of the GNU Lesser General Public License version 3,
6  * as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU Lesser General Public License for more details.
12  *
13  * You should have received a copy of the GNU Lesser General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  *
16  * Authored by: Andreas Pokorny <andreas.pokorny@canonical.com>
17  */
18 
19 #ifndef MIR_DISPATCH_ACTION_QUEUE_H_
20 #define MIR_DISPATCH_ACTION_QUEUE_H_
21 
22 #include "mir/fd.h"
24 
25 #include <list>
26 #include <mutex>
27 
28 namespace mir
29 {
30 namespace dispatch
31 {
32 
33 class ActionQueue : public Dispatchable
34 {
35 public:
36  ActionQueue();
37  Fd watch_fd() const override;
38 
39  void enqueue(std::function<void()> const& action);
40 
41  bool dispatch(FdEvents events) override;
42  FdEvents relevant_events() const override;
43 private:
44  bool consume();
45  void wake();
46  mir::Fd event_fd;
47  std::mutex list_lock;
48  std::list<std::function<void()>> actions;
49 };
50 }
51 }
52 
53 #endif // MIR_DISPATCH_ACTION_QUEUE_H_
All things Mir.
Definition: atomic_callback.h:25
Definition: fd.h:33
Definition: action_queue.h:33
FdEvents relevant_events() const override
The set of file-descriptor events this Dispatchable handles.
Definition: action_queue.cpp:70
void enqueue(std::function< void()> const &action)
Definition: action_queue.cpp:38
ActionQueue()
Definition: action_queue.cpp:24
Fd watch_fd() const override
Get a poll()able file descriptor.
Definition: action_queue.cpp:33
bool dispatch(FdEvents events) override
Dispatch one pending event.
Definition: action_queue.cpp:45
Definition: dispatchable.h:38
uint32_t FdEvents
Definition: dispatchable.h:36

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