1/*
2Open Tracker License
3
4Terms and Conditions
5
6Copyright (c) 1991-2000, Be Incorporated. All rights reserved.
7
8Permission is hereby granted, free of charge, to any person obtaining a copy of
9this software and associated documentation files (the "Software"), to deal in
10the Software without restriction, including without limitation the rights to
11use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
12of the Software, and to permit persons to whom the Software is furnished to do
13so, subject to the following conditions:
14
15The above copyright notice and this permission notice applies to all licensees
16and shall be included in all copies or substantial portions of the Software.
17
18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY,
20FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION
23WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24
25Except as contained in this notice, the name of Be Incorporated shall not be
26used in advertising or otherwise to promote the sale, use or other dealings in
27this Software without prior written authorization from Be Incorporated.
28
29Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks
30of Be Incorporated in the United States and other countries. Other brand product
31names are registered trademarks or trademarks of their respective holders.
32All rights reserved.
33*/
34
35
36#include "PendingNodeMonitorCache.h"
37#include "PoseView.h"
38
39
40const bigtime_t kDelayedNodeMonitorLifetime = 10000000;
41	// after this much the pending node monitor gets discarded as
42	// too old
43
44
45PendingNodeMonitorEntry::PendingNodeMonitorEntry(const node_ref* node,
46	const BMessage* nodeMonitor)
47	:	fExpiresAfter(system_time() + kDelayedNodeMonitorLifetime),
48		fNodeMonitor(*nodeMonitor),
49		fNode(*node)
50{
51}
52
53
54const BMessage*
55PendingNodeMonitorEntry::NodeMonitor() const
56{
57	return &fNodeMonitor;
58}
59
60
61bool
62PendingNodeMonitorEntry::Match(const node_ref* node) const
63{
64	return fNode == *node;
65}
66
67
68bool
69PendingNodeMonitorEntry::TooOld(bigtime_t now) const
70{
71	return now > fExpiresAfter;
72}
73
74
75PendingNodeMonitorCache::PendingNodeMonitorCache()
76	:	fList(10, true)
77{
78}
79
80
81PendingNodeMonitorCache::~PendingNodeMonitorCache()
82{
83}
84
85
86void
87PendingNodeMonitorCache::Add(const BMessage* message)
88{
89#if xDEBUG
90	PRINT(("adding pending node monitor\n"));
91	message->PrintToStream();
92#endif
93	node_ref node;
94	if (message->FindInt32("device", &node.device) != B_OK
95		|| message->FindInt64("node", (int64*)&node.node) != B_OK)
96		return;
97
98	fList.AddItem(new PendingNodeMonitorEntry(&node, message));
99}
100
101
102void
103PendingNodeMonitorCache::RemoveEntries(const node_ref* nodeRef)
104{
105	int32 count = fList.CountItems();
106	for (int32 index = count - 1; index >= 0; index--)
107		if (fList.ItemAt(index)->Match(nodeRef))
108			delete fList.RemoveItemAt(index);
109}
110
111
112void
113PendingNodeMonitorCache::RemoveOldEntries()
114{
115	bigtime_t now = system_time();
116	int32 count = fList.CountItems();
117	for (int32 index = count - 1; index >= 0; index--)
118		if (fList.ItemAt(index)->TooOld(now)) {
119			PRINT(("removing old entry from pending node monitor cache\n"));
120			delete fList.RemoveItemAt(index);
121		}
122}
123
124
125void
126PendingNodeMonitorCache::PoseCreatedOrMoved(BPoseView* poseView,
127	const BPose* pose)
128{
129	bigtime_t now = system_time();
130	for (int32 index = 0; index < fList.CountItems();) {
131		PendingNodeMonitorEntry* item = fList.ItemAt(index);
132		if (item->TooOld(now)) {
133			PRINT(("removing old entry from pending node monitor cache\n"));
134			delete fList.RemoveItemAt(index);
135		} else if (item->Match(pose->TargetModel()->NodeRef())) {
136			fList.RemoveItemAt(index);
137#if DEBUG
138			PRINT(("reapplying node monitor for model:\n"));
139			pose->TargetModel()->PrintToStream();
140			item->NodeMonitor()->PrintToStream();
141			bool result =
142#endif
143			poseView->FSNotification(item->NodeMonitor());
144			ASSERT(result);
145			delete item;
146		} else
147			index++;
148	}
149}
150