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Mark AfterAccess policy internal (#466)
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‎BitFaster.Caching/Lru/AfterReadStopwatchPolicy.cs‎

Lines changed: 125 additions & 125 deletions
Original file line numberDiff line numberDiff line change
@@ -1,127 +1,127 @@
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using System;
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using System.Diagnostics;
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using System.Runtime.CompilerServices;
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namespace BitFaster.Caching.Lru
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{
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#if !NETCOREAPP3_0_OR_GREATER
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/// <summary>
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/// Implement an expire after access policy.
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/// </summary>
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/// <remarks>
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/// This class measures time using Stopwatch.GetTimestamp() with a resolution of ~1us.
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/// </remarks>
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public readonly struct AfterAccessLongTicksPolicy<K, V> : IItemPolicy<K, V, LongTickCountLruItem<K, V>>
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{
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private readonly long timeToLive;
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using System;
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using System.Diagnostics;
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using System.Runtime.CompilerServices;
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namespace BitFaster.Caching.Lru
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{
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#if !NETCOREAPP3_0_OR_GREATER
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/// <summary>
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/// Implement an expire after access policy.
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/// </summary>
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/// <remarks>
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/// This class measures time using Stopwatch.GetTimestamp() with a resolution of ~1us.
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/// </remarks>
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internal readonly struct AfterAccessLongTicksPolicy<K, V> : IItemPolicy<K, V, LongTickCountLruItem<K, V>>
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{
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private readonly long timeToLive;
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private readonly Time time;
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///<inheritdoc/>
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public TimeSpan TimeToLive => StopwatchTickConverter.FromTicks(timeToLive);
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/// <summary>
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/// Initializes a new instance of the TLruLongTicksPolicy class with the specified time to live.
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/// </summary>
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/// <param name="timeToLive">The time to live.</param>
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public AfterAccessLongTicksPolicy(TimeSpan timeToLive)
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{
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this.timeToLive = StopwatchTickConverter.ToTicks(timeToLive);
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this.time = new Time();
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public LongTickCountLruItem<K, V> CreateItem(K key, V value)
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{
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return new LongTickCountLruItem<K, V>(key, value, Stopwatch.GetTimestamp());
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void Touch(LongTickCountLruItem<K, V> item)
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{
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item.TickCount = this.time.Last;
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item.WasAccessed = true;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void Update(LongTickCountLruItem<K, V> item)
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{
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item.TickCount = Stopwatch.GetTimestamp();
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool ShouldDiscard(LongTickCountLruItem<K, V> item)
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{
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this.time.Last = Stopwatch.GetTimestamp();
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if (this.time.Last - item.TickCount > this.timeToLive)
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{
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return true;
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}
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return false;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool CanDiscard()
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{
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return true;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public ItemDestination RouteHot(LongTickCountLruItem<K, V> item)
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{
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if (this.ShouldDiscard(item))
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{
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return ItemDestination.Remove;
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}
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if (item.WasAccessed)
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{
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return ItemDestination.Warm;
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}
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return ItemDestination.Cold;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public ItemDestination RouteWarm(LongTickCountLruItem<K, V> item)
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{
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if (this.ShouldDiscard(item))
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{
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return ItemDestination.Remove;
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}
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if (item.WasAccessed)
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{
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return ItemDestination.Warm;
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}
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return ItemDestination.Cold;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public ItemDestination RouteCold(LongTickCountLruItem<K, V> item)
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{
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if (this.ShouldDiscard(item))
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{
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return ItemDestination.Remove;
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}
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if (item.WasAccessed)
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{
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return ItemDestination.Warm;
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}
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return ItemDestination.Remove;
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}
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}
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#endif
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}
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///<inheritdoc/>
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public TimeSpan TimeToLive => StopwatchTickConverter.FromTicks(timeToLive);
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/// <summary>
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/// Initializes a new instance of the TLruLongTicksPolicy class with the specified time to live.
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/// </summary>
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/// <param name="timeToLive">The time to live.</param>
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public AfterAccessLongTicksPolicy(TimeSpan timeToLive)
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{
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this.timeToLive = StopwatchTickConverter.ToTicks(timeToLive);
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this.time = new Time();
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public LongTickCountLruItem<K, V> CreateItem(K key, V value)
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{
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return new LongTickCountLruItem<K, V>(key, value, Stopwatch.GetTimestamp());
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}
38+
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void Touch(LongTickCountLruItem<K, V> item)
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{
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item.TickCount = this.time.Last;
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item.WasAccessed = true;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void Update(LongTickCountLruItem<K, V> item)
50+
{
51+
item.TickCount = Stopwatch.GetTimestamp();
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool ShouldDiscard(LongTickCountLruItem<K, V> item)
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{
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this.time.Last = Stopwatch.GetTimestamp();
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if (this.time.Last - item.TickCount > this.timeToLive)
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{
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return true;
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}
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return false;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool CanDiscard()
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{
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return true;
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}
73+
74+
///<inheritdoc/>
75+
[MethodImpl(MethodImplOptions.AggressiveInlining)]
76+
public ItemDestination RouteHot(LongTickCountLruItem<K, V> item)
77+
{
78+
if (this.ShouldDiscard(item))
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{
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return ItemDestination.Remove;
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}
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if (item.WasAccessed)
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{
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return ItemDestination.Warm;
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}
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return ItemDestination.Cold;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
93+
public ItemDestination RouteWarm(LongTickCountLruItem<K, V> item)
94+
{
95+
if (this.ShouldDiscard(item))
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{
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return ItemDestination.Remove;
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}
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100+
if (item.WasAccessed)
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{
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return ItemDestination.Warm;
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}
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return ItemDestination.Cold;
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}
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///<inheritdoc/>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public ItemDestination RouteCold(LongTickCountLruItem<K, V> item)
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{
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if (this.ShouldDiscard(item))
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{
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return ItemDestination.Remove;
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}
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if (item.WasAccessed)
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{
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return ItemDestination.Warm;
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}
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return ItemDestination.Remove;
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}
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}
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#endif
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}

‎BitFaster.Caching/Lru/AfterReadTickCount64Policy.cs‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -13,7 +13,7 @@ namespace BitFaster.Caching.Lru
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/// than both Stopwatch.GetTimestamp and DateTime.UtcNow. However, resolution is lower (typically
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/// between 10-16ms), vs 1us for Stopwatch.GetTimestamp.
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/// </remarks>
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public readonly struct AfterAccessLongTicksPolicy<K, V> : IItemPolicy<K, V, LongTickCountLruItem<K, V>>
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internal readonly struct AfterAccessLongTicksPolicy<K, V> : IItemPolicy<K, V, LongTickCountLruItem<K, V>>
1717
{
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private readonly long timeToLive;
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private readonly Time time;

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