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 2 or 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 #include <functional>
28 
29 namespace mir
30 {
31 namespace dispatch
32 {
33 
34 class ActionQueue : public Dispatchable
35 {
36 public:
37  ActionQueue();
38  Fd watch_fd() const override;
39 
40  void enqueue(std::function<void()> const& action);
41 
42  bool dispatch(FdEvents events) override;
43  FdEvents relevant_events() const override;
44 private:
45  bool consume();
46  void wake();
47  mir::Fd event_fd;
48  std::mutex list_lock;
49  std::list<std::function<void()>> actions;
50 };
51 }
52 }
53 
54 #endif // MIR_DISPATCH_ACTION_QUEUE_H_
AutoUnblockThread is a helper thread class that can gracefully shutdown at destruction time...
Definition: blob.h:26
FdEvents relevant_events() const override
The set of file-descriptor events this Dispatchable handles.
Definition: fd.h:33
Definition: action_queue.h:34
void enqueue(std::function< void()> const &action)
Fd watch_fd() const override
Get a poll()able file descriptor.
bool dispatch(FdEvents events) override
Dispatch one pending event.
Definition: dispatchable.h:38
uint32_t FdEvents
Definition: dispatchable.h:36

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