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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "opentelemetry/context/context.h"
#include "opentelemetry/nostd/shared_ptr.h"
#include "opentelemetry/trace/default_span.h"
#include "opentelemetry/version.h"
OPENTELEMETRY_BEGIN_NAMESPACE
namespace trace
{
// Get Span from explicit context
inline nostd::shared_ptr<Span> GetSpan(const context::Context &context) noexcept
{
context::ContextValue span_value = context.GetValue(kSpanKey);
if (const nostd::shared_ptr<Span> *value = nostd::get_if<nostd::shared_ptr<Span>>(&span_value))
{
return *value;
}
return nostd::shared_ptr<Span>(new DefaultSpan(SpanContext::GetInvalid()));
}
// Check if the context is from a root span
inline bool IsRootSpan(const context::Context &context) noexcept
{
context::ContextValue is_root_span = context.GetValue(kIsRootSpanKey);
if (const bool *value = nostd::get_if<bool>(&is_root_span))
{
return *value;
}
return false;
}
// Set Span into explicit context
inline context::Context SetSpan(context::Context &context,
const nostd::shared_ptr<Span> &span) noexcept
{
return context.SetValue(kSpanKey, span);
}
} // namespace trace
OPENTELEMETRY_END_NAMESPACE
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