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Imported Upstream version 4.3.2.467

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Former-commit-id: 9c2cb47f45fa221e661ab616387c9cda183f283d
This commit is contained in:
Xamarin Public Jenkins
2016-02-22 11:00:01 -05:00
parent f302175246
commit f3e3aab35a
4097 changed files with 122406 additions and 82300 deletions
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36
mcs/class/corlib/System.Runtime.InteropServices/SafeHandle.cs
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@@ -146,19 +146,15 @@ namespace System.Runtime.InteropServices
{
if (!_fullyInitialized)
throw new InvalidOperationException ();
DisposeInternal ();
DangerousReleaseInternal (true);
GC.SuppressFinalize (this);
}
void InternalFinalize ()
{
if (_fullyInitialized)
DisposeInternal ();
}
void DisposeInternal ()
{
DangerousReleaseInternal (true);
GC.SuppressFinalize (this);
DangerousReleaseInternal (true);
}
void DangerousReleaseInternal (bool dispose)
@@ -192,23 +188,27 @@ namespace System.Runtime.InteropServices
if ((old_state & RefCount_Mask) == 0)
throw new ObjectDisposedException ("handle");
perform_release =
(old_state & RefCount_Mask) == RefCount_One
&& (old_state & (int) State.Closed) == 0
&& _ownsHandle;
if (perform_release && IsInvalid)
if ((old_state & RefCount_Mask) != RefCount_One)
perform_release = false;
else if ((old_state & (int) State.Closed) != 0)
perform_release = false;
else if (!_ownsHandle)
perform_release = false;
else if (IsInvalid)
perform_release = false;
else
perform_release = true;
/* Attempt the update to the new state, fail and retry if the initial
* state has been modified in the meantime. Decrement the ref count by
* substracting SH_RefCountOne from the state then OR in the bits for
* Dispose (if that's the reason for the Release) and closed (if the
* initial ref count was 1). */
new_state =
(old_state - RefCount_One)
| ((old_state & RefCount_Mask) == RefCount_One ? (int) State.Closed : 0)
| (dispose ? (int) State.Disposed : 0);
new_state = (old_state & RefCount_Mask) - RefCount_One;
if ((old_state & RefCount_Mask) == RefCount_One)
new_state |= (int) State.Closed;
if (dispose)
new_state |= (int) State.Disposed;
} while (Interlocked.CompareExchange (ref _state, new_state, old_state) != old_state);
if (perform_release)