42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "opentelemetry/context/context.h"
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#include "opentelemetry/context/runtime_context.h"
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#include "opentelemetry/nostd/shared_ptr.h"
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#include "opentelemetry/nostd/unique_ptr.h"
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#include "opentelemetry/trace/span.h"
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#include "opentelemetry/trace/span_metadata.h"
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#include "opentelemetry/version.h"
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OPENTELEMETRY_BEGIN_NAMESPACE
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namespace trace
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{
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/**
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* Controls how long a span is active.
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*
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* On creation of the Scope object, the given span is set to the currently
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* active span. On destruction, the given span is ended and the previously
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* active span will be the currently active span again.
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*/
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class Scope final
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{
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public:
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/**
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* Initialize a new scope.
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* @param span the given span will be set as the currently active span.
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*/
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Scope(const nostd::shared_ptr<Span> &span) noexcept
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: token_(context::RuntimeContext::Attach(
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context::RuntimeContext::GetCurrent().SetValue(kSpanKey, span)))
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{}
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private:
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nostd::unique_ptr<context::Token> token_;
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};
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} // namespace trace
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OPENTELEMETRY_END_NAMESPACE
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