internal override BaseVBoxBody Install(object value, int version)
{
_body = new VBoxBody <T>((T)value, version, _body);
if (_listeners.Count == 0)
{
return(_body);
}
var temp = _listeners;
foreach (var retryLatch in temp)
{
retryLatch.Open(retryLatch.Era);
}
ImmutableList <IRetryLatch> initial;
do
{
initial = _listeners;
} while (initial != Interlocked.CompareExchange(ref _listeners, ImmutableList <IRetryLatch> .Empty, initial));
return(_body);
}
internal VBoxBody <T> CASBody(VBoxBody <T> expected, VBoxBody <T> newBody)
{
if (expected == Interlocked.CompareExchange <VBoxBody <T> >(ref _body, newBody, expected))
{
if (_listeners.Count == 0)
{
return(newBody);
}
var temp = _listeners;
foreach (var retryLatch in temp)
{
retryLatch.Open(retryLatch.Era);
}
ImmutableList <IRetryLatch> initial;
do
{
initial = _listeners;
} while (initial != Interlocked.CompareExchange(ref _listeners, ImmutableList <IRetryLatch> .Empty, initial));
return(newBody);
}
else
{
return(_body.GetBody(newBody.Version));
}
}
internal override BaseVBoxBody Commit(object value, int version)
{
var currHead = _body;
var existingBody = currHead.GetBody(version);
if (existingBody == null)
{
var newBody = new VBoxBody <T>((T)value, version, currHead);
existingBody = CASBody(currHead, newBody);
}
return(existingBody);
}
internal override void Clean()
{
Next = null;
}
internal VBoxBody(T value, int version, VBoxBody <T> next)
: this(value, version)
{
Next = next;
}
public VBox(T value)
{
_body = new VBoxBody <T>(value, 0);
}