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
|
//
// CairoDebug.cs
//
// Author:
// Michael Hutchinson (mhutch@xamarin.com)
//
// Copyright (C) 2013 Xamarin Inc. (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
namespace Crow.CairoBackend
{
static class CairoDebug
{
static System.Collections.Generic.Dictionary<IntPtr,string> traces;
public static readonly bool Enabled;
static CairoDebug ()
{
var dbg = Environment.GetEnvironmentVariable ("MONO_CAIRO_DEBUG_DISPOSE");
if (dbg == null)
return;
Enabled = true;
traces = new System.Collections.Generic.Dictionary<IntPtr,string> ();
}
public static void OnAllocated (IntPtr obj)
{
if (!Enabled)
throw new InvalidOperationException ();
traces[obj] = Environment.StackTrace;
}
public static void OnDisposed<T> (IntPtr obj, bool disposing)
{
if (disposing && !Enabled)
throw new InvalidOperationException ();
if (Environment.HasShutdownStarted)
return;
if (!disposing) {
System.Diagnostics.Debug.WriteLine ("{0} is leaking, programmer is missing a call to Dispose", typeof(T).FullName);
if (Enabled) {
string val;
if (traces.TryGetValue (obj, out val)) {
System.Diagnostics.Debug.WriteLine ("Allocated from:");
System.Diagnostics.Debug.WriteLine (val);
}
} else {
System.Diagnostics.Debug.WriteLine ("Set MONO_CAIRO_DEBUG_DISPOSE to track allocation traces");
}
}
if (Enabled)
traces.Remove (obj);
}
}
}
|
