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109 changes: 109 additions & 0 deletions
109
tracer/src/Datadog.Trace/ExtensionMethods/MessagePackBinaryExtensions.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| // <copyright file="MessagePackBinaryExtensions.cs" company="Datadog"> | ||
| // Unless explicitly stated otherwise all files in this repository are licensed under the Apache 2 License. | ||
| // This product includes software developed at Datadog (https://www.datadoghq.com/). Copyright 2017 Datadog, Inc. | ||
| // </copyright> | ||
|
|
||
| #if NETCOREAPP | ||
| using System; | ||
|
|
||
| namespace Datadog.Trace.Vendors.MessagePack | ||
| { | ||
| internal static partial class MessagePackBinary | ||
| { | ||
| public static int WriteRaw(ref byte[] bytes, int offset, ReadOnlySpan<byte> rawMessagePackBlock) | ||
| { | ||
| EnsureCapacity(ref bytes, offset, rawMessagePackBlock.Length); | ||
| rawMessagePackBlock.CopyTo(bytes.AsSpan(offset, rawMessagePackBlock.Length)); | ||
| return rawMessagePackBlock.Length; | ||
| } | ||
|
|
||
| public static int WriteBytes(ref byte[] bytes, int offset, ReadOnlySpan<byte> rawMessagePackBlock) | ||
| { | ||
| var count = rawMessagePackBlock.Length; | ||
| if (count <= byte.MaxValue) | ||
| { | ||
| var size = count + 2; | ||
| EnsureCapacity(ref bytes, offset, size); | ||
|
|
||
| bytes[offset] = MessagePackCode.Bin8; | ||
| bytes[offset + 1] = (byte)count; | ||
|
|
||
| rawMessagePackBlock.CopyTo(bytes.AsSpan(offset + 2, count)); | ||
| return size; | ||
| } | ||
| else if (count <= ushort.MaxValue) | ||
| { | ||
| var size = count + 3; | ||
| EnsureCapacity(ref bytes, offset, size); | ||
|
|
||
| unchecked | ||
| { | ||
| bytes[offset] = MessagePackCode.Bin16; | ||
| bytes[offset + 1] = (byte)(count >> 8); | ||
| bytes[offset + 2] = (byte)(count); | ||
| } | ||
|
|
||
| rawMessagePackBlock.CopyTo(bytes.AsSpan(offset + 3, count)); | ||
| return size; | ||
| } | ||
| else | ||
| { | ||
| var size = count + 5; | ||
| EnsureCapacity(ref bytes, offset, size); | ||
|
|
||
| unchecked | ||
| { | ||
| bytes[offset] = MessagePackCode.Bin32; | ||
| bytes[offset + 1] = (byte)(count >> 24); | ||
| bytes[offset + 2] = (byte)(count >> 16); | ||
| bytes[offset + 3] = (byte)(count >> 8); | ||
| bytes[offset + 4] = (byte)(count); | ||
| } | ||
|
|
||
| rawMessagePackBlock.CopyTo(bytes.AsSpan(offset + 5, count)); | ||
| return size; | ||
| } | ||
| } | ||
|
|
||
| public static int WriteStringBytes(ref byte[] bytes, int offset, ReadOnlySpan<byte> utf8stringBytes) | ||
| { | ||
| var byteCount = utf8stringBytes.Length; | ||
| if (byteCount <= MessagePackRange.MaxFixStringLength) | ||
| { | ||
| EnsureCapacity(ref bytes, offset, byteCount + 1); | ||
| bytes[offset] = (byte)(MessagePackCode.MinFixStr | byteCount); | ||
| utf8stringBytes.CopyTo(bytes.AsSpan(offset + 1, byteCount)); | ||
| return byteCount + 1; | ||
| } | ||
| else if (byteCount <= byte.MaxValue) | ||
| { | ||
| EnsureCapacity(ref bytes, offset, byteCount + 2); | ||
| bytes[offset] = MessagePackCode.Str8; | ||
| bytes[offset + 1] = unchecked((byte)byteCount); | ||
| utf8stringBytes.CopyTo(bytes.AsSpan(offset + 2, byteCount)); | ||
| return byteCount + 2; | ||
| } | ||
| else if (byteCount <= ushort.MaxValue) | ||
| { | ||
| EnsureCapacity(ref bytes, offset, byteCount + 3); | ||
| bytes[offset] = MessagePackCode.Str16; | ||
| bytes[offset + 1] = unchecked((byte)(byteCount >> 8)); | ||
| bytes[offset + 2] = unchecked((byte)byteCount); | ||
| utf8stringBytes.CopyTo(bytes.AsSpan(offset + 3, byteCount)); | ||
| return byteCount + 3; | ||
| } | ||
| else | ||
| { | ||
| EnsureCapacity(ref bytes, offset, byteCount + 5); | ||
| bytes[offset] = MessagePackCode.Str32; | ||
| bytes[offset + 1] = unchecked((byte)(byteCount >> 24)); | ||
| bytes[offset + 2] = unchecked((byte)(byteCount >> 16)); | ||
| bytes[offset + 3] = unchecked((byte)(byteCount >> 8)); | ||
| bytes[offset + 4] = unchecked((byte)byteCount); | ||
| utf8stringBytes.CopyTo(bytes.AsSpan(offset + 5, byteCount)); | ||
| return byteCount + 5; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| #endif |
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