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Remove unnecessary async code #15941

Merged
merged 1 commit into from
May 2, 2024
Merged

Remove unnecessary async code #15941

merged 1 commit into from
May 2, 2024

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sebastienros
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@sebastienros sebastienros commented May 1, 2024

Summary by CodeRabbit

  • Refactor
    • Improved synchronization in the extension management system for enhanced stability and performance.

@sebastienros sebastienros requested a review from Piedone May 1, 2024 23:07
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coderabbitai bot commented May 1, 2024

Walkthrough

Walkthrough

The changes in the ExtensionManager class involve replacing the SemaphoreSlim synchronization mechanism with a simpler object lock. This adjustment streamlines the initialization process by eliminating asynchronous complexity in favor of a straightforward lock. The public methods previously marked as asynchronous are now standard synchronous tasks, reflecting the internal synchronization change.

Changes

File Path Change Summary
.../OrchardCore/Extensions/ExtensionManager.cs Replaced SemaphoreSlim with object lock for synchronization. Refactored async methods to sync methods in LoadFeaturesAsync. Updated initialization to use a simple lock.

Recent Review Details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits Files that changed from the base of the PR and between 9c541cf and fed746f.
Files selected for processing (1)
  • src/OrchardCore/OrchardCore/Extensions/ExtensionManager.cs (6 hunks)
Additional comments not posted (4)
src/OrchardCore/OrchardCore/Extensions/ExtensionManager.cs (4)

39-39: Introduction of _synLock for object locking is aligned with the PR's objective to simplify synchronization.


104-107: Ensure that the synchronous operations wrapped in Task.FromResult are thread-safe since they are no longer protected by asynchronous locks.

Verification successful

Based on the script execution and its results, it appears that the LoadFeaturesAsync method does not access shared mutable states in a way that would compromise thread safety. The method simply wraps the _features.Values in a Task.FromResult, and there is no evidence of further operations that could lead to thread safety issues within this method. Therefore, the original concern about thread safety due to the lack of asynchronous locks seems to be unfounded in this context.

Conclusion: The LoadFeaturesAsync method appears to be thread-safe as it does not involve complex operations or shared mutable state modifications.

Scripts Executed

The following scripts were executed for the analysis:


Script:

#!/bin/bash
# Description: Verify that all operations within `LoadFeaturesAsync` are thread-safe.
# This script checks for any shared mutable state accessed within the method.

# Search for shared mutable state accesses in `LoadFeaturesAsync`
ast-grep --lang csharp --pattern $'public Task<IEnumerable<FeatureEntry>> LoadFeaturesAsync() {
  $$$
  $_ = Task.FromResult<IEnumerable<FeatureEntry>>(_features.Values);
  $$$
}' src/OrchardCore/OrchardCore/Extensions/ExtensionManager.cs

Length of output: 239


110-119: Ensure that the synchronous operations wrapped in Task.FromResult are thread-safe since they are no longer protected by asynchronous locks.


277-277: The use of a lock statement in EnsureInitialized() to replace the asynchronous lock mechanism is appropriate and simplifies the synchronization logic.


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@Piedone Piedone left a comment

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FYI I looked into whether we can instead make IExtensionManager fully async. Most of its sync methods are consumed in async methods, but there are two big exceptions: IViewLocationExpanderProvider implementations and ILocalizationFileLocationProvider (which would require the whole localization to be async, what it can't be, see #15886).

@Piedone Piedone merged commit d3e6b32 into main May 2, 2024
7 checks passed
@Piedone Piedone deleted the sebros/EnsureInitialized branch May 2, 2024 13:52
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2 participants