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//
// System.GC.cs
//
// Author:
// Paolo Molaro (lupus@ximian.com)
//
// (C) 2001 Ximian, Inc. http://www.ximian.com
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.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.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
using System.Security.Permissions;
namespace System
{
public static class GC
{
public extern static int MaxGeneration {
[MethodImplAttribute(MethodImplOptions.InternalCall)]
get;
}
[MethodImplAttribute (MethodImplOptions.InternalCall)]
extern static void InternalCollect (int generation);
public static void Collect () {
InternalCollect (MaxGeneration);
}
public static void Collect (int generation) {
if (generation < 0)
throw new ArgumentOutOfRangeException ("generation");
InternalCollect (generation);
}
[MonoDocumentationNote ("mode parameter ignored")]
public static void Collect (int generation, GCCollectionMode mode) {
Collect (generation);
}
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static int GetGeneration (object obj);
public static int GetGeneration (WeakReference wo) {
object obj = wo.Target;
if (obj == null)
throw new ArgumentException ();
return GetGeneration (obj);
}
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static long GetTotalMemory (bool forceFullCollection);
/* this icall has weird semantics check the docs... */
[ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static void KeepAlive (object obj);
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static void ReRegisterForFinalize (object obj);
[ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static void SuppressFinalize (object obj);
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static void WaitForPendingFinalizers ();
[ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static int CollectionCount (int generation);
[MethodImplAttribute (MethodImplOptions.InternalCall)]
private extern static void RecordPressure (long bytesAllocated);
public static void AddMemoryPressure (long bytesAllocated) {
RecordPressure (bytesAllocated);
}
public static void RemoveMemoryPressure (long bytesAllocated) {
RecordPressure (-bytesAllocated);
}
#if NET_4_0
[PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
[MonoTODO]
public static GCNotificationStatus WaitForFullGCApproach () {
throw new NotImplementedException ();
}
[PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
[MonoTODO]
public static GCNotificationStatus WaitForFullGCApproach (int millisecondsTimeout) {
throw new NotImplementedException ();
}
[PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
[MonoTODO]
public static GCNotificationStatus WaitForFullGCComplete () {
throw new NotImplementedException ();
}
[PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
[MonoTODO]
public static GCNotificationStatus WaitForFullGCComplete (int millisecondsTimeout) {
throw new NotImplementedException ();
}
[PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
public static void RegisterForFullGCNotification (int maxGenerationThreshold, int largeObjectHeapThreshold) {
if (maxGenerationThreshold < 1 || maxGenerationThreshold > 99)
throw new ArgumentOutOfRangeException ("maxGenerationThreshold", maxGenerationThreshold, "maxGenerationThreshold must be between 1 and 99 inclusive");
if (largeObjectHeapThreshold < 1 || largeObjectHeapThreshold > 99)
throw new ArgumentOutOfRangeException ("largeObjectHeapThreshold", largeObjectHeapThreshold, "largeObjectHeapThreshold must be between 1 and 99 inclusive");
throw new NotImplementedException ();
}
[PermissionSetAttribute (SecurityAction.LinkDemand, Name = "FullTrust")]
public static void CancelFullGCNotification () {
throw new NotImplementedException ();
}
#endif
#if NET_4_0
[MethodImplAttribute (MethodImplOptions.InternalCall)]
internal extern static void register_ephemeron_array (Ephemeron[] array);
[MethodImplAttribute (MethodImplOptions.InternalCall)]
extern static object get_ephemeron_tombstone ();
internal static readonly object EPHEMERON_TOMBSTONE = get_ephemeron_tombstone ();
#endif
}
}
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