FabInfra-Mirror/libs.capnproto-dotnetcore_Runtime
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This commit is contained in:
Christian Köllner 2019-08-25 18:37:09 +02:00
parent 8b2be28eb0
commit d090697fa4
1 changed files with 23 additions and 6 deletions
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25
Capnp.Net.Runtime/Rpc/RefCountingCapability.cs
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@ -22,7 +22,7 @@ namespace Capnp.Rpc
// C: Released state: No reference anymore, capability *is* released. // C: Released state: No reference anymore, capability *is* released.
// In order to distinguish state A from C, the member _refCount stores the reference count *plus one*. // In order to distinguish state A from C, the member _refCount stores the reference count *plus one*.
// Value 0 has the special meaning of being in state C. // Value 0 has the special meaning of being in state C.
int _refCount = 1; long _refCount = 1;
~RefCountingCapability() ~RefCountingCapability()
{ {
@ -36,8 +36,6 @@ namespace Capnp.Rpc
{ {
if (disposing) if (disposing)
{ {
_refCount = 0;
try try
{ {
ReleaseRemotely(); ReleaseRemotely();
@ -74,10 +72,29 @@ namespace Capnp.Rpc
internal sealed override void Release() internal sealed override void Release()
{ {
if (1 >= Interlocked.Decrement(ref _refCount)) while (true)
{
if ((Interlocked.CompareExchange(ref _refCount, 0, 2) == 2) ||
(Interlocked.CompareExchange(ref _refCount, 0, 1) == 1))
{ {
Dispose(true); Dispose(true);
GC.SuppressFinalize(this); GC.SuppressFinalize(this);
return;
}
long oldCount = Interlocked.Read(ref _refCount);
if (oldCount > 2)
{
if (Interlocked.CompareExchange(ref _refCount, oldCount - 1, oldCount) == oldCount)
{
return;
}
}
else if (oldCount <= 0)
{
throw new InvalidOperationException("Capability is already disposed");
}
} }
} }
} }