private void EnsureCapacity(long min)
{
if ((m_capacity >= min) && (m_capacity > 0))
{
return;
}
this.RemoveDeadEntries();
if (m_size * 2L < m_capacity)
{
return;
}
var capacity = WeakDictionary <TKey, TValue> .FindNextSize(min);
Debug.Assert(capacity > 0);
m_buckets = new int[capacity];
Array.Resize(ref m_entries, capacity);
Array.Resize(ref m_entriesInfo, capacity);
for (int i = 0; i < m_buckets.Length; i++)
{
m_buckets[i] = -1;
}
for (int i = m_capacity; i < capacity; i++)
{
m_entries[i] = null;
m_entriesInfo[i] = new EntryInfo((i < capacity - 1) ? i + 1 : -1);
}
// Rehash the elements to initialize the buckets.
for (int i = 0; i < m_capacity; i++)
{
// Do not rehash free entries.
if (WeakDictionary <TKey, TValue> .IsFree(m_entries[i]))
{
continue;
}
var entryInfo = m_entriesInfo[i];
var bucket = WeakDictionary <TKey, TValue> .GetBucket(entryInfo.HashCode, capacity);
Debug.Assert((bucket >= 0) && (bucket < capacity));
var index = m_buckets[bucket];
m_buckets[bucket] = i;
m_entriesInfo[i] = entryInfo.SetNext(index);
}
// Link the remaining free entries to the newly created free entries.
if (m_free >= 0)
{
var index = m_free;
while (true)
{
var next = m_entriesInfo[index].Next;
if (next < 0)
{
m_entriesInfo[index] = new EntryInfo(m_capacity);
break;
}
index = next;
}
}
else
{
m_free = m_capacity;
}
m_capacity = capacity;
unchecked
{
m_version++;
}
}
private int GetBucket(int hashCode)
{
return(WeakDictionary <TKey, TValue> .GetBucket(hashCode, m_capacity));
}
