// TODO: Test if adding padding helps under contention
//private long pad0, pad1, pad2, pad3, pad4, pad5, pad6, pad7;
public PoolChunkList(PoolArena <T> arena, PoolChunkList <T> nextList, int minUsage, int maxUsage, int chunkSize)
{
Contract.Assert(minUsage <= maxUsage);
this.arena = arena;
this.nextList = nextList;
this.minUsage = minUsage;
this.maxUsage = maxUsage;
this.maxCapacity = CalculateMaxCapacity(minUsage, chunkSize);
}
// TODO: Test if adding padding helps under contention
//private long pad0, pad1, pad2, pad3, pad4, pad5, pad6, pad7;
protected PoolArena(
PooledByteBufferAllocator parent,
int pageSize,
int maxOrder,
int pageShifts,
int chunkSize)
{
this.Parent = parent;
this.PageSize = pageSize;
this.maxOrder = maxOrder;
this.PageShifts = pageShifts;
this.ChunkSize = chunkSize;
this.SubpageOverflowMask = ~(pageSize - 1);
this.tinySubpagePools = this.NewSubpagePoolArray(NumTinySubpagePools);
for (int i = 0; i < this.tinySubpagePools.Length; i++)
{
this.tinySubpagePools[i] = this.NewSubpagePoolHead(pageSize);
}
this.NumSmallSubpagePools = pageShifts - 9;
this.smallSubpagePools = this.NewSubpagePoolArray(this.NumSmallSubpagePools);
for (int i = 0; i < this.smallSubpagePools.Length; i++)
{
this.smallSubpagePools[i] = this.NewSubpagePoolHead(pageSize);
}
this.q100 = new PoolChunkList <T>(this, null, 100, int.MaxValue, chunkSize);
this.q075 = new PoolChunkList <T>(this, this.q100, 75, 100, chunkSize);
this.q050 = new PoolChunkList <T>(this, this.q075, 50, 100, chunkSize);
this.q025 = new PoolChunkList <T>(this, this.q050, 25, 75, chunkSize);
this.q000 = new PoolChunkList <T>(this, this.q025, 1, 50, chunkSize);
this.qInit = new PoolChunkList <T>(this, this.q000, int.MinValue, 25, chunkSize);
this.q100.PrevList(this.q075);
this.q075.PrevList(this.q050);
this.q050.PrevList(this.q025);
this.q025.PrevList(this.q000);
this.q000.PrevList(null);
this.qInit.PrevList(this.qInit);
var metrics = new List <IPoolChunkListMetric>(6);
metrics.Add(this.qInit);
metrics.Add(this.q000);
metrics.Add(this.q025);
metrics.Add(this.q050);
metrics.Add(this.q075);
metrics.Add(this.q100);
this.chunkListMetrics = metrics;
}
internal void PrevList(PoolChunkList <T> list)
{
Debug.Assert(this.prevList == null);
this.prevList = list;
}