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) {
65 [MonoDocumentationNote ("mode and blocking parameters ignored")]
66 public static void Collect (int generation, GCCollectionMode mode, bool blocking) {
70 [MethodImplAttribute (MethodImplOptions.InternalCall)]
71 public extern static int GetGeneration (object obj);
73 public static int GetGeneration (WeakReference wo) {
74 object obj = wo.Target;
76 throw new ArgumentException ();
77 return GetGeneration (obj);
80 [MethodImplAttribute (MethodImplOptions.InternalCall)]
81 public extern static long GetTotalMemory (bool forceFullCollection);
83 /* this icall has weird semantics check the docs... */
84 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
85 [MethodImplAttribute (MethodImplOptions.InternalCall)]
86 public extern static void KeepAlive (object obj);
88 [MethodImplAttribute (MethodImplOptions.InternalCall)]
89 public extern static void ReRegisterForFinalize (object obj);
91 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
92 [MethodImplAttribute (MethodImplOptions.InternalCall)]
93 public extern static void SuppressFinalize (object obj);
95 [MethodImplAttribute (MethodImplOptions.InternalCall)]
96 public extern static void WaitForPendingFinalizers ();
98 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
99 [MethodImplAttribute (MethodImplOptions.InternalCall)]
100 public extern static int CollectionCount (int generation);
102 [MethodImplAttribute (MethodImplOptions.InternalCall)]
103 private extern static void RecordPressure (long bytesAllocated);
105 public static void AddMemoryPressure (long bytesAllocated) {
106 RecordPressure (bytesAllocated);
109 public static void RemoveMemoryPressure (long bytesAllocated) {
110 RecordPressure (-bytesAllocated);
113 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
115 public static GCNotificationStatus WaitForFullGCApproach () {
116 throw new NotImplementedException ();
119 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
121 public static GCNotificationStatus WaitForFullGCApproach (int millisecondsTimeout) {
122 throw new NotImplementedException ();
125 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
127 public static GCNotificationStatus WaitForFullGCComplete () {
128 throw new NotImplementedException ();
131 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
133 public static GCNotificationStatus WaitForFullGCComplete (int millisecondsTimeout) {
134 throw new NotImplementedException ();
137 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
138 public static void RegisterForFullGCNotification (int maxGenerationThreshold, int largeObjectHeapThreshold) {
139 if (maxGenerationThreshold < 1 || maxGenerationThreshold > 99)
140 throw new ArgumentOutOfRangeException ("maxGenerationThreshold", maxGenerationThreshold, "maxGenerationThreshold must be between 1 and 99 inclusive");
141 if (largeObjectHeapThreshold < 1 || largeObjectHeapThreshold > 99)
142 throw new ArgumentOutOfRangeException ("largeObjectHeapThreshold", largeObjectHeapThreshold, "largeObjectHeapThreshold must be between 1 and 99 inclusive");
143 throw new NotImplementedException ();
146 [PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
147 public static void CancelFullGCNotification () {
148 throw new NotImplementedException ();
151 [MethodImplAttribute (MethodImplOptions.InternalCall)]
152 internal extern static void register_ephemeron_array (Ephemeron[] array);
154 [MethodImplAttribute (MethodImplOptions.InternalCall)]
155 extern static object get_ephemeron_tombstone ();
157 internal static readonly object EPHEMERON_TOMBSTONE = get_ephemeron_tombstone ();