5 // Paolo Molaro (lupus@ximian.com)
7 // (C) 2001 Ximian, Inc. http://www.ximian.com
11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
13 // Permission is hereby granted, free of charge, to any person obtaining
14 // a copy of this software and associated documentation files (the
15 // "Software"), to deal in the Software without restriction, including
16 // without limitation the rights to use, copy, modify, merge, publish,
17 // distribute, sublicense, and/or sell copies of the Software, and to
18 // permit persons to whom the Software is furnished to do so, subject to
19 // the following conditions:
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using System.Runtime.CompilerServices;
36 using System.Runtime.ConstrainedExecution;
56 public extern static int MaxGeneration {
57 [MethodImplAttribute(MethodImplOptions.InternalCall)]
61 [MethodImplAttribute (MethodImplOptions.InternalCall)]
62 extern static void InternalCollect (int generation);
64 public static void Collect () {
65 InternalCollect (MaxGeneration);
68 // LAMESPEC: MS documentation says that it raises an error
69 // when the argument generation is greater than MaxGeneration,
70 // but it doesn't. (The documentation is fixed in 2.0.)
71 public static void Collect (int generation) {
73 throw new ArgumentOutOfRangeException ("generation");
74 InternalCollect (generation);
77 [MethodImplAttribute (MethodImplOptions.InternalCall)]
78 public extern static int GetGeneration (object obj);
80 public static int GetGeneration (WeakReference wo) {
81 object obj = wo.Target;
83 throw new ArgumentException ();
84 return GetGeneration (obj);
87 [MethodImplAttribute (MethodImplOptions.InternalCall)]
88 public extern static long GetTotalMemory (bool forceFullCollection);
90 /* this icall has weird semantics check the docs... */
92 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
94 [MethodImplAttribute (MethodImplOptions.InternalCall)]
95 public extern static void KeepAlive (object obj);
97 [MethodImplAttribute (MethodImplOptions.InternalCall)]
98 public extern static void ReRegisterForFinalize (object obj);
101 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
103 [MethodImplAttribute (MethodImplOptions.InternalCall)]
104 public extern static void SuppressFinalize (object obj);
106 [MethodImplAttribute (MethodImplOptions.InternalCall)]
107 public extern static void WaitForPendingFinalizers ();
110 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
111 [MethodImplAttribute (MethodImplOptions.InternalCall)]
112 public extern static int CollectionCount (int generation);
114 [MethodImplAttribute (MethodImplOptions.InternalCall)]
115 public extern static void RecordPressure (long diff);
117 public static void AddMemoryPressure (long bytesAllocated) {
118 RecordPressure (bytesAllocated);
121 public static void RemoveMemoryPressure (long bytesAllocated) {
122 RecordPressure (-bytesAllocated);