xref: /haiku/src/add-ons/kernel/file_systems/userlandfs/shared/ObjectTracker.cpp (revision 8412d1d17a9f09d00951a67c5c19e3f8f70de786) 
1 // ObjectTracker.h
2 
3 #include <new>
4 #include <typeinfo>
5 
6 #include <AutoLocker.h>
7 
8 #include "Debug.h"
9 #include "ObjectTracker.h"
10 
11 static char sTrackerBuffer[sizeof(ObjectTracker)];
12 
13 // constructor
ObjectTrackable()14 ObjectTrackable::ObjectTrackable()
15 {
16 	ObjectTracker* tracker = ObjectTracker::GetDefault();
17 	if (tracker != NULL)
18 		tracker->AddTrackable(this);
19 }
20 
21 // destructor
~ObjectTrackable()22 ObjectTrackable::~ObjectTrackable()
23 {
24 	ObjectTracker* tracker = ObjectTracker::GetDefault();
25 	if (tracker != NULL)
26 		tracker->RemoveTrackable(this);
27 }
28 
29 
30 // #pragma mark -
31 
32 // constructor
ObjectTracker()33 ObjectTracker::ObjectTracker()
34 	: fLock("object tracker"),
35 	  fTrackables()
36 {
37 }
38 
39 // destructor
~ObjectTracker()40 ObjectTracker::~ObjectTracker()
41 {
42 	ObjectTrackable* trackable = fTrackables.First();
43 	if (trackable) {
44 		WARN(("ObjectTracker: WARNING: There are still undeleted objects:\n"));
45 #ifndef _KERNEL_MODE
46 		for (; trackable; trackable = fTrackables.GetNext(trackable)) {
47 			WARN(("  trackable: %p: type: `%s'\n", trackable,
48 				typeid(*trackable).name()));
49 		}
50 #endif
51 	}
52 }
53 
54 // InitDefault
55 ObjectTracker*
InitDefault()56 ObjectTracker::InitDefault()
57 {
58 	if (!sTracker)
59 		sTracker = new(sTrackerBuffer) ObjectTracker;
60 	return sTracker;
61 }
62 
63 // ExitDefault
64 void
ExitDefault()65 ObjectTracker::ExitDefault()
66 {
67 	if (sTracker) {
68 		sTracker->~ObjectTracker();
69 		sTracker = NULL;
70 	}
71 }
72 
73 // GetDefault
74 ObjectTracker*
GetDefault()75 ObjectTracker::GetDefault()
76 {
77 	return sTracker;
78 }
79 
80 // AddTrackable
81 void
AddTrackable(ObjectTrackable * trackable)82 ObjectTracker::AddTrackable(ObjectTrackable* trackable)
83 {
84 	if (trackable) {
85 		AutoLocker<Locker> _(fLock);
86 		fTrackables.Insert(trackable);
87 	}
88 }
89 
90 // RemoveTrackable
91 void
RemoveTrackable(ObjectTrackable * trackable)92 ObjectTracker::RemoveTrackable(ObjectTrackable* trackable)
93 {
94 	if (trackable) {
95 		AutoLocker<Locker> _(fLock);
96 		fTrackables.Remove(trackable);
97 	}
98 }
99 
100 // sTracker
101 ObjectTracker* ObjectTracker::sTracker = NULL;
102 
103