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Imported Upstream version 4.2.0.179

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Former-commit-id: 0a113cb3a6feb7873f632839b1307cc6033cd595
This commit is contained in:
Xamarin Public Jenkins
2015-08-26 07:17:56 -04:00
committed by Jo Shields
parent 183bba2c9a
commit 6992685b86
7507 changed files with 90259 additions and 657307 deletions
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34
mcs/class/corlib/System.Threading/CompressedStack.cs
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@ -61,16 +61,20 @@ namespace System.Threading {
public static CompressedStack Capture ()
{
#if !FEATURE_COMPRESSEDSTACK
throw new NotSupportedException ();
#else
CompressedStack cs = new CompressedStack (0);
cs._list = SecurityFrame.GetStack (1);
cs._list = new ArrayList ();
// include any current CompressedStack inside the new Capture
CompressedStack currentCs = Thread.CurrentThread.GetCompressedStack ();
CompressedStack currentCs = Thread.CurrentThread.ExecutionContext.SecurityContext.CompressedStack;
if (currentCs != null) {
for (int i=0; i < currentCs._list.Count; i++)
cs._list.Add (currentCs._list [i]);
}
return cs;
#endif
}
// NOTE: This method doesn't show in the class library status page because
@ -79,13 +83,18 @@ namespace System.Threading {
[SecurityCritical]
static public CompressedStack GetCompressedStack ()
{
#if !FEATURE_COMPRESSEDSTACK
throw new NotSupportedException ();
#else
// Note: CompressedStack.GetCompressedStack doesn't return null
// like Thread.CurrentThread.GetCompressedStack if no compressed
// stack is present.
CompressedStack cs = Thread.CurrentThread.GetCompressedStack ();
if (cs == null) {
CompressedStack cs = Thread.CurrentThread.ExecutionContext.SecurityContext.CompressedStack;
if (cs == null || cs.IsEmpty ()) {
cs = CompressedStack.Capture ();
} else {
cs = cs.CreateCopy ();
// merge the existing compressed stack (from a previous Thread) with the current
// Thread stack so we can assign "all of it" to yet another Thread
CompressedStack newstack = CompressedStack.Capture ();
@ -93,6 +102,7 @@ namespace System.Threading {
cs._list.Add (newstack._list [i]);
}
return cs;
#endif
}
[MonoTODO ("incomplete")]
@ -106,20 +116,24 @@ namespace System.Threading {
[SecurityCritical]
static public void Run (CompressedStack compressedStack, ContextCallback callback, object state)
{
#if !FEATURE_COMPRESSEDSTACK
throw new NotSupportedException ();
#else
if (compressedStack == null)
throw new ArgumentException ("compressedStack");
Thread t = Thread.CurrentThread;
CompressedStack original = null;
try {
original = t.GetCompressedStack ();
t.SetCompressedStack (compressedStack);
original = t.ExecutionContext.SecurityContext.CompressedStack;
t.ExecutionContext.SecurityContext.CompressedStack = compressedStack;
callback (state);
}
finally {
if (original != null)
t.SetCompressedStack (original);
t.ExecutionContext.SecurityContext.CompressedStack = original;
}
#endif
}
// internal stuff
@ -132,12 +146,6 @@ namespace System.Threading {
if (_list.Count != cs._list.Count)
return false;
for (int i=0; i < _list.Count; i++) {
SecurityFrame sf1 = (SecurityFrame) _list [i];
SecurityFrame sf2 = (SecurityFrame) cs._list [i];
if (!sf1.Equals (sf2))
return false;
}
return true;
}