private void TryFinish(ConcurrentArray <TKey, TValue> newArray)
{
var previousValue = Interlocked.CompareExchange(ref _state, CopyingFinished, CurrentlyCopying);
if (previousValue == Aborted)
{
return;
}
_setNewArray(OldArray, newArray);
}
public GrowArrayProcess(ConcurrentArray <TKey, TValue> oldArray,
int newArraySize,
ExchangeArray <TKey, TValue> setNewArray,
int maximumNumberOfItemsCopiedDuringHelp = DefaultMaximumNumberOfItemsCopiedDuringHelp)
{
oldArray.MustNotBeNull(nameof(oldArray));
newArraySize.MustBeGreaterThan(oldArray.Capacity, nameof(newArraySize));
setNewArray.MustNotBeNull(nameof(setNewArray));
maximumNumberOfItemsCopiedDuringHelp.MustNotBeLessThan(0, nameof(maximumNumberOfItemsCopiedDuringHelp));
OldArray = oldArray;
NewArraySize = newArraySize;
_setNewArray = setNewArray;
MaximumNumberOfItemsCopiedDuringHelp = maximumNumberOfItemsCopiedDuringHelp;
}
private bool CopySingleEntry(ConcurrentArray <TKey, TValue> newArray)
{
if (ShouldContinueCopying == false)
{
return(false);
}
var currentIndex = Interlocked.Increment(ref _currentIndex);
if (currentIndex >= OldArray.Capacity)
{
return(false);
}
var entry = OldArray.ReadVolatileFromIndex(currentIndex);
if (entry != null)
{
// ReSharper disable once UnusedVariable
var addInfo = newArray.TryAdd(entry);
#if CONCURRENT_LOGGING
if (addInfo.OperationResult == AddResult.AddSuccessful)
{
Log($"Copied entry {entry.Key} to array {newArray.Id}");
}
else if (addInfo.OperationResult == AddResult.ExistingEntryFound)
{
Log($"Tried to copy entry {entry.Key} to array {newArray.Id}, but entry was already there.");
}
else
{
Log($"Tried to copy entry {entry.Key} to array {newArray.Id}, but the target entry is full. THIS MUST NEVER HAPPEN AND MIGHT LEAD TO LOST ENTRIES.");
}
#endif
}
var numberOfCopiedItems = Interlocked.Increment(ref _numberOfCopiedItems);
if (numberOfCopiedItems < OldArray.Capacity)
{
return(true);
}
TryFinish(newArray);
return(false);
}
public GrowArrayProcess <TKey, TValue> CreateGrowArrayProcess(ConcurrentArray <TKey, TValue> oldArray, int newArraySize, ExchangeArray <TKey, TValue> setNewArray)
{
return(new GrowArrayProcess <TKey, TValue>(oldArray, newArraySize, setNewArray, _maximumNumberOfItemsCopiedDuringHelp));
}
