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;
34 using System.Runtime.ConstrainedExecution;
35 using System.Security.Permissions;
39 public static class GC
42 public extern static int MaxGeneration {
43 [MethodImplAttribute(MethodImplOptions.InternalCall)]
47 [MethodImplAttribute (MethodImplOptions.InternalCall)]
48 extern static void InternalCollect (int generation);
50 public static void Collect () {
51 InternalCollect (MaxGeneration);
54 public static void Collect (int generation) {
56 throw new ArgumentOutOfRangeException ("generation");
57 InternalCollect (generation);
60 [MonoDocumentationNote ("mode parameter ignored")]
61 public static void Collect (int generation, GCCollectionMode mode) {
66 [MonoDocumentationNote ("mode and blocking parameters ignored")]
67 public static void Collect (int generation, GCCollectionMode mode, bool blocking) {
72 [MethodImplAttribute (MethodImplOptions.InternalCall)]
73 public extern static int GetGeneration (object obj);
75 public static int GetGeneration (WeakReference wo) {
76 object obj = wo.Target;
78 throw new ArgumentException ();
79 return GetGeneration (obj);
82 [MethodImplAttribute (MethodImplOptions.InternalCall)]
83 public extern static long GetTotalMemory (bool forceFullCollection);
85 /* this icall has weird semantics check the docs... */
86 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
87 [MethodImplAttribute (MethodImplOptions.InternalCall)]
88 public extern static void KeepAlive (object obj);
90 [MethodImplAttribute (MethodImplOptions.InternalCall)]
91 public extern static void ReRegisterForFinalize (object obj);
93 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
94 [MethodImplAttribute (MethodImplOptions.InternalCall)]
95 public extern static void SuppressFinalize (object obj);
97 [MethodImplAttribute (MethodImplOptions.InternalCall)]
98 public extern static void WaitForPendingFinalizers ();
100 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
101 [MethodImplAttribute (MethodImplOptions.InternalCall)]
102 public extern static int CollectionCount (int generation);
104 [MethodImplAttribute (MethodImplOptions.InternalCall)]
105 private extern static void RecordPressure (long bytesAllocated);
107 public static void AddMemoryPressure (long bytesAllocated) {
108 RecordPressure (bytesAllocated);
111 public static void RemoveMemoryPressure (long bytesAllocated) {
112 RecordPressure (-bytesAllocated);
116 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
118 public static GCNotificationStatus WaitForFullGCApproach () {
119 throw new NotImplementedException ();
122 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
124 public static GCNotificationStatus WaitForFullGCApproach (int millisecondsTimeout) {
125 throw new NotImplementedException ();
128 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
130 public static GCNotificationStatus WaitForFullGCComplete () {
131 throw new NotImplementedException ();
134 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
136 public static GCNotificationStatus WaitForFullGCComplete (int millisecondsTimeout) {
137 throw new NotImplementedException ();
140 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
141 public static void RegisterForFullGCNotification (int maxGenerationThreshold, int largeObjectHeapThreshold) {
142 if (maxGenerationThreshold < 1 || maxGenerationThreshold > 99)
143 throw new ArgumentOutOfRangeException ("maxGenerationThreshold", maxGenerationThreshold, "maxGenerationThreshold must be between 1 and 99 inclusive");
144 if (largeObjectHeapThreshold < 1 || largeObjectHeapThreshold > 99)
145 throw new ArgumentOutOfRangeException ("largeObjectHeapThreshold", largeObjectHeapThreshold, "largeObjectHeapThreshold must be between 1 and 99 inclusive");
146 throw new NotImplementedException ();
149 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
150 public static void CancelFullGCNotification () {
151 throw new NotImplementedException ();
156 [MethodImplAttribute (MethodImplOptions.InternalCall)]
157 internal extern static void register_ephemeron_array (Ephemeron[] array);
159 [MethodImplAttribute (MethodImplOptions.InternalCall)]
160 extern static object get_ephemeron_tombstone ();
162 internal static readonly object EPHEMERON_TOMBSTONE = get_ephemeron_tombstone ();