Squashed commit of the following:

commit 9a835fe12c9586ab8dd44d7c96fef4a2d6017e4b
Author: vnugent <public@vaughnnugent.com>
Date:   Fri May 17 18:27:03 2024 -0400

    chore: Update mimmaloc v2.1.6, update fPIC & cleanup

commit 3b7004b88acfc7f7baa3a8857a5a2f7cf3dd560e
Author: vnugent <public@vaughnnugent.com>
Date:   Fri May 17 16:03:28 2024 -0400

    feat: Added ReadFileDataAsync function

commit 9a964795757bf0da4dd7fcab15ad304f4ea3fdf1
Author: vnugent <public@vaughnnugent.com>
Date:   Wed May 15 21:57:39 2024 -0400

    refactor: Harden some argon2 password hashing

commit 4035c838c1508af0aa7e767a97431a692958ce1c
Author: vnugent <public@vaughnnugent.com>
Date:   Sun May 12 16:55:32 2024 -0400

    perf: Utils + http perf mods

commit f4f0d4f74250257991c57bfae74c4852c7e1ae46
Author: vnugent <public@vaughnnugent.com>
Date:   Thu May 2 15:22:53 2024 -0400

    feat: Buff middleware handlers
    |
    |  Added implicit support for middleware post processing of files before the filehandler closes the connection. Also cleaned up some project file stuff

commit f0b7dca107659df1d7d4631fdbd2aae9d716d053
Merge: 8c4a45e 107b058
Author: vnugent <public@vaughnnugent.com>
Date:   Sat Apr 20 12:24:05 2024 -0400

    Merge branch 'main' into develop

commit 8c4a45e384accf92b1b6d748530e8d46f7de40d6
Author: vnugent <public@vaughnnugent.com>
Date:   Sat Apr 20 11:10:30 2024 -0400

    refactor: Overhaul C libraries and fix builds

commit 42ff77080d10b0fc9fecbbc46141e8e23a1d066a
Author: vnugent <public@vaughnnugent.com>
Date:   Sat Apr 20 00:45:57 2024 -0400

    fix!: Middlware array, multiple cookie set, and cookie check

commit 97e82b9d66f387f9e6d21d88ddc7a8ab8693149c
Merge: 4ca5791 e07537a
Author: vnugent <public@vaughnnugent.com>
Date:   Tue Apr 2 13:34:22 2024 -0400

    Merge branch 'main' into develop

commit 4ca5791ed67b9834bdbd010206b30373e4705e9b
Author: vnugent <public@vaughnnugent.com>
Date:   Tue Apr 2 13:32:12 2024 -0400

    fix: Missed ! on null pointer check

commit 9b4036377c52200c6488c98180d69a0e63321f97
Author: vnugent <public@vaughnnugent.com>
Date:   Tue Apr 2 13:22:29 2024 -0400

    fix: Fix _In_ macro for compression public api

commit 53a7b4b5c5b67b4a4e06e1d9098cac4bcd6afd7c
Merge: 448a93b 21130c8
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 31 17:01:15 2024 -0400

    Merge branch 'main' into develop

commit 448a93bb1d18d032087afe2476ffccb98634a54c
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 31 16:56:51 2024 -0400

    ci: fix third-party dir cleanup

commit 9afed1427472da1ea13079f98dbe27339e55ee7d
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 31 16:43:15 2024 -0400

    perf: Deprecate unsafememoryhandle span extensions

commit 3ff90da4f02af47ea6d233fdd4445337ebe36452
Author: vnugent <public@vaughnnugent.com>
Date:   Sat Mar 30 21:36:18 2024 -0400

    refactor: Updates, advanced tracing, http optimizations

commit 8d6b79b5ae309b36f265ba81529bcef8bfcd7414
Merge: 6c1667b 5585915
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 24 21:01:31 2024 -0400

    Merge branch 'main' into develop

commit 6c1667be23597513537f8190e2f55d65eb9b7c7a
Author: vnugent <public@vaughnnugent.com>
Date:   Fri Mar 22 12:01:53 2024 -0400

    refactor: Overhauled native library loading and lazy init

commit ebf688f2f974295beabf7b5def7e6f6f150551d0
Author: vnugent <public@vaughnnugent.com>
Date:   Wed Mar 20 22:16:17 2024 -0400

    refactor: Update compression header files and macros + Ci build

commit 9c7b564911080ccd5cbbb9851a0757b05e1e9047
Author: vnugent <public@vaughnnugent.com>
Date:   Tue Mar 19 21:54:49 2024 -0400

    refactor: JWK overhaul & add length getter to FileUpload

commit 6d8c3444e09561e5957491b3cc1ae858e0abdd14
Author: vnugent <public@vaughnnugent.com>
Date:   Mon Mar 18 16:13:20 2024 -0400

    feat: Add FNV1a software checksum and basic correction tests

commit 00d182088cecefc08ca80b1faee9bed3f215f40b
Author: vnugent <public@vaughnnugent.com>
Date:   Fri Mar 15 01:05:27 2024 -0400

    chore: #6 Use utils filewatcher instead of built-in

commit d513c10d9895c6693519ef1d459c6a5a76929436
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 10 21:58:14 2024 -0400

    source tree project location updated

1 files changed, 54 insertions, 0 deletions

diff --git a/lib/Plugins.Essentials/src/HttpEntity.cs b/lib/Plugins.Essentials/src/HttpEntity.cs
index 2a24982..ff728e3 100644
--- a/lib/Plugins.Essentials/src/HttpEntity.cs
+++ b/lib/Plugins.Essentials/src/HttpEntity.cs
@@ -26,6 +26,7 @@ using System;
 using System.IO;
 using System.Net;
 using System.Threading;
+using System.Diagnostics;
 using System.Collections.Generic;
 using System.Runtime.CompilerServices;
 
@@ -204,6 +205,27 @@ namespace VNLib.Plugins.Essentials
                 throw new ContentTypeUnacceptableException("The client does not accept the content type of the response");
             }
 
+            /*
+             * If the underlying stream is actaully a memory stream, 
+             * create a wrapper for it to read as a memory response.
+             * This is done to avoid a user-space copy since we can 
+             * get access to access the internal buffer
+             * 
+             * Stream length also should not cause an integer overflow,
+             * which also mean position is assumed not to overflow 
+             * or cause an overflow during reading
+             */
+            if(stream is MemoryStream ms && length < int.MaxValue)
+            {
+                Entity.CloseResponse(
+                    code, 
+                    type, 
+                    new MemStreamWrapper(ms, (int)length)
+                );
+
+                return;
+            }
+
             Entity.CloseResponse(code, type, stream, length);
         }
 
@@ -246,5 +268,37 @@ namespace VNLib.Plugins.Essentials
         ///<inheritdoc/>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         void IHttpEvent.DangerousChangeProtocol(IAlternateProtocol protocolHandler) => Entity.DangerousChangeProtocol(protocolHandler);
+
+
+        private sealed class MemStreamWrapper(MemoryStream memStream, int length) : IMemoryResponseReader 
+        {
+            readonly int length = length;
+
+            /*
+             * Stream may be offset by the caller, it needs 
+             * to be respected during streaming.
+             */
+            int read = (int)memStream.Position;
+
+            public int Remaining
+            {
+                get
+                {
+                    Debug.Assert(length - read >= 0);
+                    return length - read;
+                }
+            }
+
+            public void Advance(int written) => read += written;
+
+            ///<inheritdoc/>
+            public void Close() => memStream.Dispose();
+
+            public ReadOnlyMemory<byte> GetMemory()
+            {
+                byte[] intBuffer = memStream.GetBuffer();
+                return new ReadOnlyMemory<byte>(intBuffer, read, Remaining);
+            }
+        }
     }
 }