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[1.3.0 patch] Fix enumerator reflection when using DS7 version #3605

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merged 5 commits into from Aug 31, 2022
Merged

[1.3.0 patch] Fix enumerator reflection when using DS7 version #3605

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632f202
Patch to fix DS7 with 1.3.0 style enumerator reflection.
CodeBlanch Aug 25, 2022
61af155
Attempt to fix whitespace on diff.
CodeBlanch Aug 25, 2022
9a48648
Attempting to get some of the CI running for branch.
CodeBlanch Aug 25, 2022
7278031
More CI tweaks.
CodeBlanch Aug 25, 2022
f04e43d
CHANGELOG update.
CodeBlanch Aug 25, 2022
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19 changes: 16 additions & 3 deletions .github/workflows/linux-ci.yml
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Open in desktop
Expand Up @@ -2,11 +2,11 @@ name: Linux

on:
push:
branches: [ main ]
branches: [ 'main*' ]
paths-ignore:
- '**.md'
pull_request:
branches: [ main ]
branches: [ 'main*' ]
paths-ignore:
- '**.md'

Expand All @@ -16,11 +16,24 @@ jobs:

strategy:
matrix:
version: [netcoreapp3.1,net6.0]
version: [netcoreapp3.1,net6.0,net7.0]

steps:
- uses: actions/checkout@v3

- uses: actions/setup-dotnet@v2
with:
dotnet-version: '3.1.x'

- uses: actions/setup-dotnet@v2
with:
dotnet-version: '6.0.x'

- uses: actions/setup-dotnet@v2
with:
dotnet-version: '7.0.x'
include-prerelease: true

- name: Install dependencies
run: dotnet restore

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19 changes: 16 additions & 3 deletions .github/workflows/windows-ci.yml
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Open in desktop
Expand Up @@ -2,11 +2,11 @@ name: Windows

on:
push:
branches: [ main ]
branches: [ 'main*' ]
paths-ignore:
- '**.md'
pull_request:
branches: [ main ]
branches: [ 'main*' ]
paths-ignore:
- '**.md'

Expand All @@ -16,11 +16,24 @@ jobs:

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strategy:
matrix:
version: [net462,netcoreapp3.1,net6.0]
version: [net462,netcoreapp3.1,net6.0,net7.0]

steps:
- uses: actions/checkout@v3

- uses: actions/setup-dotnet@v2
with:
dotnet-version: '3.1.x'

- uses: actions/setup-dotnet@v2
with:
dotnet-version: '6.0.x'
Comment on lines +24 to +30
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nit: can simplify this if desired:

Suggested change
- uses: actions/setup-dotnet@v2
with:
dotnet-version: '3.1.x'
- uses: actions/setup-dotnet@v2
with:
dotnet-version: '6.0.x'
- uses: actions/setup-dotnet@v2
with:
dotnet-version: |
3.1.x
6.0.x


- uses: actions/setup-dotnet@v2
with:
dotnet-version: '7.0.x'
include-prerelease: true

- name: Install dependencies
run: dotnet restore

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3 changes: 2 additions & 1 deletion OpenTelemetry.sln
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Expand Up @@ -12,6 +12,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
.dockerignore = .dockerignore
.editorconfig = .editorconfig
CONTRIBUTING.md = CONTRIBUTING.md
global.json = global.json
LICENSE = LICENSE
NuGet.config = NuGet.config
OpenTelemetry.proj = OpenTelemetry.proj
Expand Down Expand Up @@ -233,7 +234,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Extensions.Pr
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OpenTelemetry.Extensions.Propagators.Tests", "test\OpenTelemetry.Extensions.Propagators.Tests\OpenTelemetry.Extensions.Propagators.Tests.csproj", "{476D804B-BFEC-4D34-814C-DFFD97109989}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "correlation", "docs\logs\correlation\correlation.csproj", "{9A07D215-90AC-4BAF-BCDB-73D74FD3A5C5}"
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "correlation", "docs\logs\correlation\correlation.csproj", "{9A07D215-90AC-4BAF-BCDB-73D74FD3A5C5}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
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2 changes: 1 addition & 1 deletion build/Common.props
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Expand Up @@ -43,7 +43,7 @@
<StackExchangeRedisPkgVer>[2.1.58,3.0)</StackExchangeRedisPkgVer>
<StyleCopAnalyzersPkgVer>[1.2.0-beta.354,2.0)</StyleCopAnalyzersPkgVer>
<SystemCollectionsImmutablePkgVer>1.4.0</SystemCollectionsImmutablePkgVer>
<SystemDiagnosticSourcePkgVer>6.0.0</SystemDiagnosticSourcePkgVer>
<SystemDiagnosticSourcePkgVer>[6.0.0,8.0)</SystemDiagnosticSourcePkgVer>
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<SystemReflectionEmitLightweightPkgVer>4.7.0</SystemReflectionEmitLightweightPkgVer>
<SystemTextJsonPkgVer>4.7.0</SystemTextJsonPkgVer>
<SystemThreadingTasksExtensionsPkgVer>4.5.3</SystemThreadingTasksExtensionsPkgVer>
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5 changes: 3 additions & 2 deletions global.json
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@@ -1,6 +1,7 @@
{
"sdk": {
"rollForward": "latestFeature",
"version": "6.0.100"
"rollForward": "latestMajor",
"version": "6.0.100",
"allowPrerelease": true
}
}
36 changes: 31 additions & 5 deletions src/OpenTelemetry.Api/Internal/ActivityHelperExtensions.cs
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Expand Up @@ -259,11 +259,37 @@ private static class ActivityTagsEnumeratorFactory<TState>
ActivityTagObjectsEnumerator = DictionaryEnumerator<string, object, TState>.BuildAllocationFreeForEachDelegate(
typeof(Activity).GetField("_tags", BindingFlags.Instance | BindingFlags.NonPublic).FieldType);

private static readonly DictionaryEnumerator<string, object, TState>.AllocationFreeForEachDelegate
ActivityTagsCollectionEnumerator = DictionaryEnumerator<string, object, TState>.BuildAllocationFreeForEachDelegate(typeof(ActivityTagsCollection));

private static readonly DictionaryEnumerator<string, object, TState>.ForEachDelegate ForEachTagValueCallbackRef = ForEachTagValueCallback;

private static readonly DictionaryEnumerator<string, object, TState>.AllocationFreeForEachDelegate ActivityEventTagsEnumerator;

private static readonly DictionaryEnumerator<string, object, TState>.AllocationFreeForEachDelegate ActivityLinkTagsEnumerator;

static ActivityTagsEnumeratorFactory()
{
var activityEventTagsField = typeof(ActivityEvent).GetField("_tags", BindingFlags.Instance | BindingFlags.NonPublic);
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Since we're going through with a patch release, I think it makes sense to implement the ultimate fallback in the event things change beyond DS 7. Also could put the defense in for Activity tags as well if ever that were to change.

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Here's another area in the OTLP exporter that might risk a similar 💥 in the future

opentelemetry-dotnet/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/Implementation/ActivityExtensions.cs

Line 300 in 28c0bcc

private static Action<RepeatedField<Span>, int> CreateRepeatedFieldOfSpanSetCountAction()

We actually ran into this once before #1854...

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Since we're going through with a patch release, I think it makes sense to implement the ultimate fallback in the event things change beyond DS 7. Also could put the defense in for Activity tags as well if ever that were to change.

+1

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Here's another area in the OTLP exporter that might risk a similar 💥 in the future

I actually pinged the protobuf team the other day about if they would accept a contribution to make that OTLP hack/feature part of the public API. I don't want to link it here because it is kind of off topic but the response seemed like a maybe? I was going to throw a PR up but then @reyang pointed out to me there is an alternative thing protobuf-net which seems to use built-in List<T> for its codegen. Might make more sense to switch libs completely. Needs a bit of investigation so I tabled it for now.

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@alanwest alanwest Aug 29, 2022 •
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Needs a bit of investigation so I tabled it for now.

I think this is fine, but before pushing out the patch release I think we should decide what our strategy is here. The protobuf hack is not a problem today, but could be tomorrow.

So question is: Do we want to mitigate for this in the 1.3.1 patch release?

I think the answer is yes.

If other agree, then sounds like options include:

  1. Provide a fallback in the event the reflection fails.
  2. Investigate protobuf-net and consider using it.
  3. Wait for protobuf team to release real support for OTLP hack.

I'd be content with option 1. It requires no further investigation and sufficiently guards users of 1.3.1 from any surprise application crashes when upgrading their protobuf/gRPC dependencies in the future.

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switching to protobuf-net, if we do it, should be part of regular minor version bump, not ".1" patch for addressing bug fix.

A fallback would be the best option here.

if (activityEventTagsField != null)
{
// .NET 7 API
ActivityEventTagsEnumerator = DictionaryEnumerator<string, object, TState>.BuildAllocationFreeForEachDelegate(activityEventTagsField.FieldType);
}
else
{
ActivityEventTagsEnumerator = DictionaryEnumerator<string, object, TState>.BuildAllocationFreeForEachDelegate(typeof(ActivityTagsCollection));
}

var activityLinkTagsField = typeof(ActivityLink).GetField("_tags", BindingFlags.Instance | BindingFlags.NonPublic);
if (activityLinkTagsField != null)
{
// .NET 7 API
ActivityLinkTagsEnumerator = DictionaryEnumerator<string, object, TState>.BuildAllocationFreeForEachDelegate(activityLinkTagsField.FieldType);
}
else
{
ActivityLinkTagsEnumerator = DictionaryEnumerator<string, object, TState>.BuildAllocationFreeForEachDelegate(typeof(ActivityTagsCollection));
}
}

[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Enumerate(Activity activity, ref TState state)
{
Expand All @@ -290,7 +316,7 @@ public static void Enumerate(ActivityLink activityLink, ref TState state)
return;
}

ActivityTagsCollectionEnumerator(
ActivityLinkTagsEnumerator(
tags,
ref state,
ForEachTagValueCallbackRef);
Expand All @@ -306,7 +332,7 @@ public static void Enumerate(ActivityEvent activityEvent, ref TState state)
return;
}

ActivityTagsCollectionEnumerator(
ActivityEventTagsEnumerator(
tags,
ref state,
ForEachTagValueCallbackRef);
Expand Down
5 changes: 3 additions & 2 deletions test/OpenTelemetry.Tests/OpenTelemetry.Tests.csproj
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Expand Up @@ -2,7 +2,7 @@
<PropertyGroup>
<Description>Unit test project for OpenTelemetry</Description>
<!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
<TargetFrameworks>net6.0;netcoreapp3.1</TargetFrameworks>
<TargetFrameworks>net7.0;net6.0;netcoreapp3.1</TargetFrameworks>
<TargetFrameworks Condition="$(OS) == 'Windows_NT'">$(TargetFrameworks);net462</TargetFrameworks>
<NoWarn>$(NoWarn),CS0618</NoWarn>
</PropertyGroup>
Expand All @@ -13,7 +13,8 @@
</ItemGroup>

<ItemGroup>
<PackageReference Include="Microsoft.Extensions.Logging" Version="$(MicrosoftExtensionsLoggingPkgVer)" />
<PackageReference Include="Microsoft.Extensions.Logging" Version="$(MicrosoftExtensionsLoggingPkgVer)" />
<PackageReference Include="System.Diagnostics.DiagnosticSource" Version="7.0.0-preview.7.22375.6" Condition="$(TargetFramework) == 'net7.0'" />
</ItemGroup>

<ItemGroup>
Expand Down
2 changes: 1 addition & 1 deletion test/OpenTelemetry.Tests/Trace/LinkTest.cs
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Expand Up @@ -83,7 +83,7 @@ public void Equality()
Assert.True(link1.Equals(link3));
}

[Fact]
[Fact(Skip = "NET7 doesn't support ActivityLink equality")]
public void Equality_WithAttributes()
{
var link1 = new Link(this.spanContext, this.tags);
Expand Down