blob: 50fe2ce5760dd053d2aba54721ef85d4f0c31c6b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
// Copyright 2015 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef LIBBRILLO_BRILLO_MESSAGE_LOOPS_GLIB_MESSAGE_LOOP_H_
#define LIBBRILLO_BRILLO_MESSAGE_LOOPS_GLIB_MESSAGE_LOOP_H_
#include <map>
#include <memory>
#include <base/location.h>
#include <base/time/time.h>
#include <glib.h>
#include <brillo/brillo_export.h>
#include <brillo/message_loops/message_loop.h>
namespace brillo {
class BRILLO_EXPORT GlibMessageLoop : public MessageLoop {
public:
GlibMessageLoop();
~GlibMessageLoop() override;
// MessageLoop overrides.
TaskId PostDelayedTask(const tracked_objects::Location& from_here,
const base::Closure& task,
base::TimeDelta delay) override;
using MessageLoop::PostDelayedTask;
TaskId WatchFileDescriptor(const tracked_objects::Location& from_here,
int fd,
WatchMode mode,
bool persistent,
const base::Closure& task) override;
using MessageLoop::WatchFileDescriptor;
bool CancelTask(TaskId task_id) override;
bool RunOnce(bool may_block) override;
void Run() override;
void BreakLoop() override;
private:
// Called by the GLib's main loop when is time to call the callback scheduled
// with Post*Task(). The pointer to the callback passed when scheduling it is
// passed to this function as a gpointer on |user_data|.
static gboolean OnRanPostedTask(gpointer user_data);
// Called by the GLib's main loop when the watched source |source| is
// ready to perform the operation given in |condition| without blocking.
static gboolean OnWatchedFdReady(GIOChannel *source,
GIOCondition condition,
gpointer user_data);
// Called by the GLib's main loop when the scheduled callback is removed due
// to it being executed or canceled.
static void DestroyPostedTask(gpointer user_data);
// Return a new unused task_id.
TaskId NextTaskId();
GMainLoop* loop_;
struct ScheduledTask {
// A pointer to this GlibMessageLoop so we can remove the Task from the
// glib callback.
GlibMessageLoop* loop;
tracked_objects::Location location;
MessageLoop::TaskId task_id;
guint source_id;
bool persistent;
base::Closure closure;
};
std::map<MessageLoop::TaskId, ScheduledTask*> tasks_;
MessageLoop::TaskId last_id_ = kTaskIdNull;
DISALLOW_COPY_AND_ASSIGN(GlibMessageLoop);
};
} // namespace brillo
#endif // LIBBRILLO_BRILLO_MESSAGE_LOOPS_GLIB_MESSAGE_LOOP_H_
|
