1 files changed, 82 insertions, 0 deletions
diff --git a/lib/Net.Http/src/HttpBufferConfig.cs b/lib/Net.Http/src/HttpBufferConfig.cs
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+++ b/lib/Net.Http/src/HttpBufferConfig.cs
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+/*
+* Copyright (c) 2023 Vaughn Nugent
+* 
+* Library: VNLib
+* Package: VNLib.Net.Http
+* File: HttpBufferConfig.cs 
+*
+* HttpBufferConfig.cs is part of VNLib.Net.Http which is part of the larger 
+* VNLib collection of libraries and utilities.
+*
+* VNLib.Net.Http is free software: you can redistribute it and/or modify 
+* it under the terms of the GNU Affero General Public License as 
+* published by the Free Software Foundation, either version 3 of the
+* License, or (at your option) any later version.
+*
+* VNLib.Net.Http is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with this program.  If not, see https://www.gnu.org/licenses/.
+*/
+
+namespace VNLib.Net.Http
+{
+    /// <summary>
+    /// Holds configuration constants for http protocol buffers
+    /// </summary>
+    public readonly record struct HttpBufferConfig()
+    {
+        /// <summary>
+        /// The maximum buffer size to use when parsing Multi-part/Form-data file uploads
+        /// </summary>
+        /// <remarks>
+        /// This value is used to create the buffer used to read data from the input stream
+        /// into memory for parsing. Form-data uploads must be parsed in memory because
+        /// the data is not delimited by a content length.
+        /// </remarks>
+        public readonly int FormDataBufferSize { get; init; } = 8192;
+
+        /// <summary>
+        /// The buffer size used to read HTTP headers from the transport. 
+        /// </summary>
+        /// <remarks>
+        /// Setting this value too low will result in header parsing failures
+        /// and 400 Bad Request responses. Setting it too high can result in
+        /// resource abuse or high memory usage. 8k is usually a good value.
+        /// </remarks>
+        public readonly int RequestHeaderBufferSize { get; init; } = 8192;
+
+        /// <summary>
+        /// The size (in bytes) of the http response header accumulator buffer.
+        /// </summary>
+        /// <remarks>
+        /// Http responses use an internal accumulator to buffer all response headers
+        /// before writing them to the transport in on write operation. If this value
+        /// is too low, the response will fail to write. If it is too high, it 
+        /// may cause resource exhaustion or high memory usage.
+        /// </remarks>
+        public readonly int ResponseHeaderBufferSize { get; init; } = 16 * 1024;
+
+        /// <summary>
+        /// The size (in bytes) of the buffer to use to discard unread request entity bodies
+        /// </summary>
+        public readonly int DiscardBufferSize { get; init; } = 64 * 1024;
+
+        /// <summary>
+        /// The size of the buffer to use when writing response data to the transport
+        /// </summary>
+        /// <remarks>
+        /// This value is the size of the buffer used to copy data from the response 
+        /// entity stream, to the transport stream.
+        /// </remarks>
+        public readonly int ResponseBufferSize { get; init; } = 32 * 1024;
+
+        /// <summary>
+        /// The size of the buffer used to accumulate chunked response data before writing to the transport
+        /// </summary>
+        public readonly int ChunkedResponseAccumulatorSize { get; init; } = 64 * 1024;
+    }
+}
+\ No newline at end of file