13575541599

Committed 27 Feb 2025 08:45PM UTC coverage: 58.86% (-1.2%) from 60.086%

Build # 13575541599

Build Type

push

github

Committed by

pwelter34

Commit Message

add UrlBuilder

Run Details

480 of 955 branches covered (50.26%)

Branch coverage included in aggregate %.

160 of 282 new or added lines in 3 files covered. (56.74%)

1440 of 2307 relevant lines covered (62.42%)

22.25 hits per line

Source File
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75.0

/src/MediatR.CommandQuery/Services/StringBuilderCache.cs

﻿using System.Text;

namespace MediatR.CommandQuery.Services;

/// <summary>Provide a cached reusable instance of StringBuilder per thread.</summary>
internal static class StringBuilderCache
{
    // The value 360 was chosen in discussion with performance experts as a compromise between using
    // as little memory per thread as possible and still covering a large part of short-lived
    // StringBuilder creations on the startup path of VS designers.
    internal const int MaxBuilderSize = 360;
    private const int DefaultCapacity = 16; // == StringBuilder.DefaultCapacity

    [ThreadStatic]
    private static StringBuilder? t_cachedInstance;

    /// <summary>Get a StringBuilder for the specified capacity.</summary>
    /// <remarks>If a StringBuilder of an appropriate size is cached, it will be returned and the cache emptied.</remarks>
    public static StringBuilder Acquire(int capacity = DefaultCapacity)
    {
        if (capacity > MaxBuilderSize)
            return new StringBuilder(capacity);

        var sb = t_cachedInstance;
        if (sb is null)
            return new StringBuilder(capacity);

        // Avoid StringBuilder block fragmentation by getting a new StringBuilder
        // when the requested size is larger than the current capacity
        if (capacity > sb.Capacity)
            return new StringBuilder(capacity);

        t_cachedInstance = null;
        sb.Clear();

        return sb;

    }

    /// <summary>Place the specified builder in the cache if it is not too big.</summary>
    public static void Release(StringBuilder stringBuilder)
    {
        if (stringBuilder is null)
            throw new ArgumentNullException(nameof(stringBuilder));

        if (stringBuilder.Capacity <= MaxBuilderSize)
            t_cachedInstance = stringBuilder;
    }

    /// <summary>Release StringBuilder to the cache, and return the resulting string.</summary>
    public static string ToString(StringBuilder stringBuilder)
    {
        if (stringBuilder is null)
            throw new ArgumentNullException(nameof(stringBuilder));

        string result = stringBuilder.ToString();
        Release(stringBuilder);

        return result;
    }
}

1	using System.Text;
2
3	namespace MediatR.CommandQuery.Services;
4
5	/// <summary>Provide a cached reusable instance of StringBuilder per thread.</summary>
6	internal static class StringBuilderCache
7	{
8	// The value 360 was chosen in discussion with performance experts as a compromise between using
9	// as little memory per thread as possible and still covering a large part of short-lived
10	// StringBuilder creations on the startup path of VS designers.
11	internal const int MaxBuilderSize = 360;
12	private const int DefaultCapacity = 16; // == StringBuilder.DefaultCapacity
13
14	[ThreadStatic]
15	private static StringBuilder? t_cachedInstance;
16
17	/// <summary>Get a StringBuilder for the specified capacity.</summary>
18	/// <remarks>If a StringBuilder of an appropriate size is cached, it will be returned and the cache emptied.</remarks>
19	public static StringBuilder Acquire(int capacity = DefaultCapacity)
20	{
21	if (capacity > MaxBuilderSize)	70!
NEW 22	return new StringBuilder(capacity);	×
23
24	var sb = t_cachedInstance;	70✔
25	if (sb is null)	70✔
26	return new StringBuilder(capacity);	2✔
27
28	// Avoid StringBuilder block fragmentation by getting a new StringBuilder
29	// when the requested size is larger than the current capacity
30	if (capacity > sb.Capacity)	68!
NEW 31	return new StringBuilder(capacity);	×
32
33	t_cachedInstance = null;	68✔
34	sb.Clear();	68✔
35
36	return sb;	68✔
37
38	}
39
40	/// <summary>Place the specified builder in the cache if it is not too big.</summary>
41	public static void Release(StringBuilder stringBuilder)
42	{
43	if (stringBuilder is null)	70!
NEW 44	throw new ArgumentNullException(nameof(stringBuilder));	×
45
46	if (stringBuilder.Capacity <= MaxBuilderSize)	70✔
47	t_cachedInstance = stringBuilder;	70✔
48	}	70✔
49
50	/// <summary>Release StringBuilder to the cache, and return the resulting string.</summary>
51	public static string ToString(StringBuilder stringBuilder)
52	{
53	if (stringBuilder is null)	70!
NEW 54	throw new ArgumentNullException(nameof(stringBuilder));	×
55
56	string result = stringBuilder.ToString();	70✔
57	Release(stringBuilder);	70✔
58
59	return result;	70✔
60	}
61	}

loresoft / MediatR.CommandQuery / 13575541599

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