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Less string allocations

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This commit is contained in:
Bond-009
2019-02-16 16:54:18 +01:00
parent 9bab93262e
commit 9ba6227db4
3 changed files with 51 additions and 42 deletions
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25
Jellyfin.Server/SocketSharp/RequestMono.cs
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@@ -11,7 +11,7 @@ namespace Jellyfin.Server.SocketSharp
{
public partial class WebSocketSharpRequest : IHttpRequest
{
internal static string GetParameter(string header, string attr)
internal static string GetParameter(ReadOnlySpan<char> header, string attr)
{
int ap = header.IndexOf(attr, StringComparison.Ordinal);
if (ap == -1)
@@ -31,13 +31,14 @@ namespace Jellyfin.Server.SocketSharp
ending = ' ';
}
int end = header.IndexOf(ending, ap + 1);
var slice = header.Slice(ap + 1);
int end = slice.IndexOf(ending);
if (end == -1)
{
return ending == '"' ? null : header.Substring(ap);
return ending == '"' ? null : header.Slice(ap).ToString();
}
return header.Substring(ap + 1, end - ap - 1);
return slice.Slice(0, end - ap - 1).ToString();
}
private async Task LoadMultiPart(WebROCollection form)
@@ -394,7 +395,7 @@ namespace Jellyfin.Server.SocketSharp
}
var elem = new Element();
string header;
ReadOnlySpan<char> header;
while ((header = ReadHeaders()) != null)
{
if (header.StartsWith("Content-Disposition:", StringComparison.OrdinalIgnoreCase))
@@ -404,7 +405,7 @@ namespace Jellyfin.Server.SocketSharp
}
else if (header.StartsWith("Content-Type:", StringComparison.OrdinalIgnoreCase))
{
elem.ContentType = header.Substring("Content-Type:".Length).Trim();
elem.ContentType = header.Slice("Content-Type:".Length).Trim().ToString();
elem.Encoding = GetEncoding(elem.ContentType);
}
}
@@ -452,7 +453,7 @@ namespace Jellyfin.Server.SocketSharp
return sb.ToString();
}
private static string GetContentDispositionAttribute(string l, string name)
private static string GetContentDispositionAttribute(ReadOnlySpan<char> l, string name)
{
int idx = l.IndexOf(name + "=\"", StringComparison.Ordinal);
if (idx < 0)
@@ -461,7 +462,7 @@ namespace Jellyfin.Server.SocketSharp
}
int begin = idx + name.Length + "=\"".Length;
int end = l.IndexOf('"', begin);
int end = l.Slice(begin).IndexOf('"');
if (end < 0)
{
return null;
@@ -472,10 +473,10 @@ namespace Jellyfin.Server.SocketSharp
return string.Empty;
}
return l.Substring(begin, end - begin);
return l.Slice(begin, end - begin).ToString();
}
private string GetContentDispositionAttributeWithEncoding(string l, string name)
private string GetContentDispositionAttributeWithEncoding(ReadOnlySpan<char> l, string name)
{
int idx = l.IndexOf(name + "=\"", StringComparison.Ordinal);
if (idx < 0)
@@ -484,7 +485,7 @@ namespace Jellyfin.Server.SocketSharp
}
int begin = idx + name.Length + "=\"".Length;
int end = l.IndexOf('"', begin);
int end = l.Slice(begin).IndexOf('"');
if (end < 0)
{
return null;
@@ -495,7 +496,7 @@ namespace Jellyfin.Server.SocketSharp
return string.Empty;
}
string temp = l.Substring(begin, end - begin);
ReadOnlySpan<char> temp = l.Slice(begin, end - begin);
byte[] source = new byte[temp.Length];
for (int i = temp.Length - 1; i >= 0; i--)
{