| | | 1 | | using System.Runtime.CompilerServices; |
| | | 2 | | using System.Text; |
| | | 3 | | |
| | | 4 | | namespace NGql.Core.Pooling; |
| | | 5 | | |
| | | 6 | | /// <summary> |
| | | 7 | | /// Lock-free pool for StringBuilder instances with thread-local optimization |
| | | 8 | | /// </summary> |
| | | 9 | | internal static class LockFreeStringBuilderPool |
| | | 10 | | { |
| | | 11 | | private const int MaxCapacity = 2048; // Larger capacity limit for better reuse |
| | | 12 | | private const int InitialCapacity = 256; |
| | | 13 | | |
| | 3 | 14 | | private static readonly ThreadLocalPool<StringBuilder> _pool = new( |
| | 12 | 15 | | factory: () => new StringBuilder(InitialCapacity), |
| | 42 | 16 | | reset: sb => sb.Clear(), |
| | 42 | 17 | | validateForReturn: sb => sb.Capacity <= MaxCapacity, // Skip if capacity is too large (prevents memory bloat) |
| | 3 | 18 | | poolName: "stringbuilder" |
| | 3 | 19 | | ); |
| | | 20 | | |
| | | 21 | | /// <summary> |
| | | 22 | | /// Gets a pooled StringBuilder instance |
| | | 23 | | /// </summary> |
| | | 24 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 42 | 25 | | internal static PooledStringBuilder Get() => new(_pool.Get()); |
| | | 26 | | |
| | | 27 | | /// <summary> |
| | | 28 | | /// Gets a pooled StringBuilder instance (alias for compatibility) |
| | | 29 | | /// </summary> |
| | | 30 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | 42 | 31 | | internal static PooledStringBuilder GetPooled() => Get(); |
| | | 32 | | |
| | | 33 | | /// <summary> |
| | | 34 | | /// Returns StringBuilder to the pool |
| | | 35 | | /// </summary> |
| | | 36 | | [MethodImpl(MethodImplOptions.AggressiveInlining)] |
| | | 37 | | [System.Diagnostics.CodeAnalysis.SuppressMessage("Major Code Smell", "S3398:Move this method inside 'PooledStringBui |
| | 42 | 38 | | private static void Return(StringBuilder sb) => _pool.Return(sb); |
| | | 39 | | |
| | | 40 | | /// <summary> |
| | | 41 | | /// Zero-allocation ref struct wrapper with lock-free pooling |
| | | 42 | | /// </summary> |
| | | 43 | | internal readonly ref struct PooledStringBuilder |
| | | 44 | | { |
| | | 45 | | public readonly StringBuilder StringBuilder; |
| | 42 | 46 | | internal PooledStringBuilder(StringBuilder sb) => StringBuilder = sb; |
| | 42 | 47 | | public void Dispose() => Return(StringBuilder); |
| | | 48 | | } |
| | | 49 | | } |