blob: f5e219e2def971cb9271f63afb6b63e1b49a78bf (
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
|
#include "scoped.hpp"
#include <QApplication>
#include <QThread>
#include <cstdlib>
#include <atomic>
#include <QDebug>
namespace options {
// XXX hack: the flag shouldn't be here as action at distance -sh 20160926
static std::atomic<bool> teardown_flag = false;
[[nodiscard]] static bool set_teardown_flag(bool value);
static void ensure_thread();
static bool is_tracker_teardown();
static bool set_teardown_flag(bool value)
{
// flag being set means "opts" is about to go out of scope due to tracker stop
// in this case we don't reload options. we only want to reload when cancel is pressed.
ensure_thread();
return teardown_flag.exchange(value);
}
static void ensure_thread()
{
// only as a bug check
if (qApp == nullptr) // NOLINT
abort();
const QThread* ui_thread = qApp->thread(); // NOLINT
const QThread* curthread = QThread::currentThread();
if (ui_thread == nullptr)
abort();
if (ui_thread != curthread)
abort();
}
static bool is_tracker_teardown()
{
return teardown_flag;
}
opts::~opts()
{
if (!is_tracker_teardown())
b->reload();
#if 0
else
qDebug() << "in teardown, not reloading" << b->name();
#endif
}
opts::opts(const QString &name) : b(make_bundle(name))
{
}
with_tracker_teardown::with_tracker_teardown() : old_value{set_teardown_flag(true)}
{
}
with_tracker_teardown::~with_tracker_teardown()
{
(void)set_teardown_flag(old_value);
}
} // ns options
|
