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Add: reserve parameter added to Index for c# sdk #666

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Add: reserve parameter added to Index for c# sdk #666

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25 changes: 22 additions & 3 deletions csharp/src/Cloud.Unum.USearch/USearchIndex.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -23,14 +23,16 @@ public class USearchIndex : IDisposable
/// <param name="expansionAdd">The optional expansion factor used for index construction when adding vectors.</param>
/// <param name="expansionSearch">The optional expansion factor used for index construction during search operations.</param>
/// <param name="multi">When set allows multiple vectors to map to the same key.</param>
/// <param name="reserve">Reserves memory for a specified number of incoming vectors.</param>
public USearchIndex(
MetricKind metricKind,
ScalarKind quantization,
ulong dimensions,
ulong connectivity = 0,
ulong expansionAdd = 0,
ulong expansionSearch = 0,
bool multi = false
bool multi = false,
ulong reserve = 0
)
{
IndexOptions initOptions = new()
Expand All @@ -48,25 +50,37 @@ public USearchIndex(
this._index = usearch_init(ref initOptions, out IntPtr error);
HandleError(error);
this._cachedDimensions = dimensions;

if (reserve > 0)
{
this.IncreaseCapacity(reserve);
}
}

/// <summary>
/// Initializes a new instance of the USearchIndex class with specified options.
/// </summary>
/// <param name="options">The options structure containing initialization parameters.</param>
public USearchIndex(IndexOptions options)
/// <param name="reserve">Reserves memory for a specified number of incoming vectors.</param>
public USearchIndex(IndexOptions options, ulong reserve = 0)
{
this._index = usearch_init(ref options, out IntPtr error);
HandleError(error);
this._cachedDimensions = options.dimensions;

if (reserve > 0)
{
this.IncreaseCapacity(reserve);
}
}

/// <summary>
/// Initializes a new instance of the USearchIndex class and loads or views the index from a specified file.
/// </summary>
/// <param name="path">The file path from where the index will be loaded or viewed.</param>
/// <param name="view">If true, creates a view of the index without copying it into memory.</param>
public USearchIndex(string path, bool view = false)
/// <param name="reserve">Reserves memory for a specified number of incoming vectors.</param>
public USearchIndex(string path, bool view = false, ulong reserve = 0)
{
IndexOptions initOptions = new();
this._index = usearch_init(ref initOptions, out IntPtr error);
Expand All @@ -84,6 +98,11 @@ public USearchIndex(string path, bool view = false)
HandleError(error);

this._cachedDimensions = this.Dimensions();

if (reserve > 0)
{
this.IncreaseCapacity(reserve);
}
}

/// <summary>
Expand Down