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Imported Upstream version 4.8.0.309

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Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2016-11-10 13:04:39 +00:00
parent ee1447783b
commit 94b2861243
4912 changed files with 390737 additions and 49310 deletions
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93
mcs/class/referencesource/mscorlib/system/gc.cs
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@@ -65,6 +65,28 @@ namespace System {
public static class GC
{
#if MONO
[MethodImplAttribute (MethodImplOptions.InternalCall)]
extern static int GetCollectionCount (int generation);
[MethodImplAttribute (MethodImplOptions.InternalCall)]
extern static int GetMaxGeneration ();
[MethodImplAttribute (MethodImplOptions.InternalCall)]
extern static void InternalCollect (int generation);
[MethodImplAttribute (MethodImplOptions.InternalCall)]
extern static void RecordPressure (long bytesAllocated);
// TODO: Move following to ConditionalWeakTable
[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 ();
#else
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[MethodImplAttribute(MethodImplOptions.InternalCall)]
@@ -139,6 +161,7 @@ namespace System {
[ResourceExposure(ResourceScope.None)]
[DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode), SuppressUnmanagedCodeSecurity]
private static extern void _RemoveMemoryPressure(UInt64 bytesAllocated);
#endif
[System.Security.SecurityCritical] // auto-generated_required
public static void AddMemoryPressure (long bytesAllocated) {
@@ -153,7 +176,11 @@ namespace System {
}
Contract.EndContractBlock();
#if MONO
RecordPressure (bytesAllocated);
#else
_AddMemoryPressure((ulong)bytesAllocated);
#endif
}
[System.Security.SecurityCritical] // auto-generated_required
@@ -169,7 +196,11 @@ namespace System {
}
Contract.EndContractBlock();
#if MONO
RecordPressure (-bytesAllocated);
#else
_RemoveMemoryPressure((ulong) bytesAllocated);
#endif
}
@@ -198,8 +229,12 @@ namespace System {
//
[System.Security.SecuritySafeCritical] // auto-generated
public static void Collect() {
#if MONO
InternalCollect (MaxGeneration);
#else
//-1 says to GC all generations.
_Collect(-1, (int)InternalGCCollectionMode.Blocking);
#endif
}
[System.Security.SecuritySafeCritical] // auto-generated
@@ -248,7 +283,11 @@ namespace System {
iInternalModes |= (int)InternalGCCollectionMode.NonBlocking;
}
#if MONO
InternalCollect (generation);
#else
_Collect(generation, iInternalModes);
#endif
}
[System.Security.SecuritySafeCritical] // auto-generated
@@ -260,9 +299,15 @@ namespace System {
throw new ArgumentOutOfRangeException("generation", Environment.GetResourceString("ArgumentOutOfRange_GenericPositive"));
}
Contract.EndContractBlock();
#if MONO
return GetCollectionCount(generation);
#else
return _CollectionCount(generation, 0);
#endif
}
#if !MONO
// pass in true to get the BGC or FGC count.
[System.Security.SecuritySafeCritical] // auto-generated
[ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
@@ -275,6 +320,7 @@ namespace System {
Contract.EndContractBlock();
return _CollectionCount(generation, (getSpecialGCCount ? 1 : 0));
}
#endif
// This method DOES NOT DO ANYTHING in and of itself. It's used to
// prevent a finalizable object from losing any outstanding references
@@ -318,9 +364,16 @@ namespace System {
//
[System.Security.SecuritySafeCritical] // auto-generated
public static int GetGeneration(WeakReference wo) {
#if MONO
object obj = wo.Target;
if (obj == null)
throw new ArgumentException ();
return GetGeneration (obj);
#else
int result = GetGenerationWR(wo.m_handle);
KeepAlive(wo);
return result;
#endif
}
// Returns the maximum GC generation. Currently assumes only 1 heap.
@@ -330,17 +383,23 @@ namespace System {
get { return GetMaxGeneration(); }
}
#if MONO
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static void WaitForPendingFinalizers ();
#else
[System.Security.SecurityCritical] // auto-generated
[ResourceExposure(ResourceScope.None)]
[DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)]
[SuppressUnmanagedCodeSecurity]
private static extern void _WaitForPendingFinalizers();
[System.Security.SecuritySafeCritical] // auto-generated
public static void WaitForPendingFinalizers() {
// QCalls can not be exposed from mscorlib directly, need to wrap it.
_WaitForPendingFinalizers();
}
#endif
// Indicates that the system should not call the Finalize() method on
// an object that would normally require this call.
@@ -380,6 +439,31 @@ namespace System {
// the GC heap. This does not return the total size of the GC heap, but
// only the live objects in the GC heap.
//
#if MONO
[MethodImplAttribute (MethodImplOptions.InternalCall)]
public extern static long GetTotalMemory (bool forceFullCollection);
static bool _RegisterForFullGCNotification(int maxGenerationPercentage, int largeObjectHeapPercentage)
{
throw new NotImplementedException ();
}
static bool _CancelFullGCNotification ()
{
throw new NotImplementedException ();
}
static int _WaitForFullGCApproach (int millisecondsTimeout)
{
throw new NotImplementedException ();
}
static int _WaitForFullGCComplete (int millisecondsTimeout)
{
throw new NotImplementedException ();
}
#else
[System.Security.SecuritySafeCritical] // auto-generated
public static long GetTotalMemory(bool forceFullCollection) {
long size = GetTotalMemory();
@@ -416,6 +500,7 @@ namespace System {
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private static extern int _WaitForFullGCComplete(int millisecondsTimeout);
#endif
[SecurityCritical]
public static void RegisterForFullGCNotification(int maxGenerationThreshold, int largeObjectHeapThreshold)
@@ -503,6 +588,9 @@ namespace System {
[SecurityCritical]
static bool StartNoGCRegionWorker(long totalSize, bool hasLohSize, long lohSize, bool disallowFullBlockingGC)
{
#if MONO
throw new NotImplementedException ();
#else
StartNoGCRegionStatus status = (StartNoGCRegionStatus)_StartNoGCRegion(totalSize, hasLohSize, lohSize, disallowFullBlockingGC);
if (status == StartNoGCRegionStatus.AmountTooLarge)
throw new ArgumentOutOfRangeException("totalSize",
@@ -512,6 +600,7 @@ namespace System {
else if (status == StartNoGCRegionStatus.NotEnoughMemory)
return false;
return true;
#endif
}
[SecurityCritical]
@@ -541,6 +630,9 @@ namespace System {
[SecurityCritical]
static EndNoGCRegionStatus EndNoGCRegionWorker()
{
#if MONO
throw new NotImplementedException ();
#else
EndNoGCRegionStatus status = (EndNoGCRegionStatus)_EndNoGCRegion();
if (status == EndNoGCRegionStatus.NotInProgress)
throw new InvalidOperationException("NoGCRegion mode must be set");
@@ -550,6 +642,7 @@ namespace System {
throw new InvalidOperationException("Allocated memory exceeds specified memory for NoGCRegion mode");
return EndNoGCRegionStatus.Succeeded;
#endif
}
[SecurityCritical]