blob: 3b024fa7300c312c467c1dfdb8bd2f0611dfcf00 (
plain) (
blame)
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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
//
// NotificationCenter.cpp
//
// Library: Foundation
// Package: Notifications
// Module: NotificationCenter
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/NotificationCenter.h"
#include "Poco/Notification.h"
#include "Poco/Observer.h"
#include "Poco/AutoPtr.h"
#include "Poco/SingletonHolder.h"
namespace Poco {
NotificationCenter::NotificationCenter()
{
}
NotificationCenter::~NotificationCenter()
{
}
void NotificationCenter::addObserver(const AbstractObserver& observer)
{
Mutex::ScopedLock lock(_mutex);
_observers.push_back(observer.clone());
}
void NotificationCenter::removeObserver(const AbstractObserver& observer)
{
Mutex::ScopedLock lock(_mutex);
for (ObserverList::iterator it = _observers.begin(); it != _observers.end(); ++it)
{
if (observer.equals(**it))
{
(*it)->disable();
_observers.erase(it);
return;
}
}
}
bool NotificationCenter::hasObserver(const AbstractObserver& observer) const
{
Mutex::ScopedLock lock(_mutex);
for (ObserverList::const_iterator it = _observers.begin(); it != _observers.end(); ++it)
if (observer.equals(**it)) return true;
return false;
}
void NotificationCenter::postNotification(Notification::Ptr pNotification)
{
poco_check_ptr (pNotification);
ScopedLockWithUnlock<Mutex> lock(_mutex);
ObserverList observersToNotify(_observers);
lock.unlock();
for (ObserverList::iterator it = observersToNotify.begin(); it != observersToNotify.end(); ++it)
{
(*it)->notify(pNotification);
}
}
bool NotificationCenter::hasObservers() const
{
Mutex::ScopedLock lock(_mutex);
return !_observers.empty();
}
std::size_t NotificationCenter::countObservers() const
{
Mutex::ScopedLock lock(_mutex);
return _observers.size();
}
namespace
{
static SingletonHolder<NotificationCenter> sh;
}
NotificationCenter& NotificationCenter::defaultCenter()
{
return *sh.get();
}
} // namespace Poco
|
