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Add Linux support via a TaskLocalContextManager (#546)
* Basic linux support via a concurrency based wrapper library * Fix/don't run some tests when they can't pass on the current platform. Remove some unnecessary 'Base' protocols in favor of wrapper types in OpenTelemetryConcurrency * Remove swift-atomics from the direct dependencies on Darwin platforms * Remove unnecessary protocol functions, and add some documentation comments * Update some more doc comments * Rename OpenTelemetryTestCase to OpenTelemetryContextTestCase * Remove an unnecessary import and assertion * Remove debugging code * Add linux test github action * Add comments and clean up some issues in the tests * Add a concurrency example, and allow SpanBuilderBase to startSpans * Apply extensions to SpanBuilderBase instead of SpanBuilder * Split building and running the tests into separate steps * Avoid using docker * Force noninteractive swiftly installation * Try removing complex test case overrides * Revert "Try removing complex test case overrides" This reverts commit c982b2e. * Revert "Force noninteractive swiftly installation" This reverts commit a8bc0ac. * Revert "Avoid using docker" This reverts commit 387b99f. * Allow batch worker threads to exit once they are cancelled, and increase scheduleDelay on batch workers to avoid keeping the condition variables locked * Also check for cancellation on the inner loop in BatchWorker * Update Package.swift * Update [email protected] * Update [email protected] * fixed additional package issues * added additional test skip --------- Co-authored-by: Bryce Buchanan <[email protected]> Co-authored-by: Bryce Buchanan <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| /* | ||
| * Copyright The OpenTelemetry Authors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
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| #if canImport(_Concurrency) | ||
| import OpenTelemetrySdk | ||
| import OpenTelemetryConcurrency | ||
| import StdoutExporter | ||
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| let sampleKey = "sampleKey" | ||
| let sampleValue = "sampleValue" | ||
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| // On Apple platforms, the default is the activity based context manager. We want to opt-in to the structured concurrency based context manager instead. | ||
| OpenTelemetry.registerDefaultConcurrencyContextManager() | ||
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| let stdout = StdoutExporter() | ||
| OpenTelemetry.registerTracerProvider( | ||
| tracerProvider: TracerProviderBuilder().add( | ||
| spanProcessor: SimpleSpanProcessor(spanExporter: stdout) | ||
| ).build() | ||
| ) | ||
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| let tracer = OpenTelemetry.instance.tracerProvider.get(instrumentationName: "ConcurrencyContext", instrumentationVersion: "semver:0.1.0") | ||
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| extension Task where Failure == Never, Success == Never { | ||
| static func sleep(seconds: Double) async throws { | ||
| try await self.sleep(nanoseconds: UInt64(seconds * 1_000_000_000)) | ||
| } | ||
| } | ||
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| func simpleSpan() async throws { | ||
| let span = tracer.spanBuilder(spanName: "SimpleSpan").setSpanKind(spanKind: .client).startSpan() | ||
| span.setAttribute(key: sampleKey, value: sampleValue) | ||
| try await Task.sleep(seconds: 0.5) | ||
| span.end() | ||
| } | ||
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| func childSpan() async throws { | ||
| // SpanBuilder's `setActive` method is not available here, since it isn't compatible with structured concurrency based context management | ||
| try await tracer.spanBuilder(spanName: "parentSpan").setSpanKind(spanKind: .client).withActiveSpan { span in | ||
| span.setAttribute(key: sampleKey, value: sampleValue) | ||
| await Task.detached { | ||
| // A detached task doesn't inherit the task local context, so this span won't have a parent. | ||
| let notAChildSpan = tracer.spanBuilder(spanName: "notAChild").setSpanKind(spanKind: .client).startSpan() | ||
| notAChildSpan.setAttribute(key: sampleKey, value: sampleValue) | ||
| notAChildSpan.end() | ||
| }.value | ||
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| try await Task { | ||
| // Normal tasks should still inherit the context. | ||
| try await Task.sleep(seconds: 0.2) | ||
| let childSpan = tracer.spanBuilder(spanName: "childSpan").setSpanKind(spanKind: .client).startSpan() | ||
| childSpan.setAttribute(key: sampleKey, value: sampleValue) | ||
| try await Task.sleep(seconds: 0.5) | ||
| childSpan.end() | ||
| }.value | ||
| } | ||
| } | ||
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| try await simpleSpan() | ||
| try await Task.sleep(seconds: 1) | ||
| try await childSpan() | ||
| try await Task.sleep(seconds: 1) | ||
|
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| #endif |
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