55 lines
1.3 KiB
C++
55 lines
1.3 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 <mutex>
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#include "opentelemetry/context/propagation/noop_propagator.h"
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#include "opentelemetry/context/propagation/text_map_propagator.h"
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#include "opentelemetry/common/spin_lock_mutex.h"
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#include "opentelemetry/nostd/shared_ptr.h"
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#include "opentelemetry/version.h"
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OPENTELEMETRY_BEGIN_NAMESPACE
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namespace context
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{
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namespace propagation
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{
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/* Stores the singleton TextMapPropagator */
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class GlobalTextMapPropagator
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{
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public:
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static nostd::shared_ptr<TextMapPropagator> GetGlobalPropagator() noexcept
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{
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std::lock_guard<common::SpinLockMutex> guard(GetLock());
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return nostd::shared_ptr<TextMapPropagator>(GetPropagator());
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}
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static void SetGlobalPropagator(nostd::shared_ptr<TextMapPropagator> prop) noexcept
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{
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std::lock_guard<common::SpinLockMutex> guard(GetLock());
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GetPropagator() = prop;
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}
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private:
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static nostd::shared_ptr<TextMapPropagator> &GetPropagator() noexcept
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{
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static nostd::shared_ptr<TextMapPropagator> propagator(new NoOpPropagator());
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return propagator;
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}
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static common::SpinLockMutex &GetLock() noexcept
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{
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static common::SpinLockMutex lock;
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return lock;
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}
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};
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} // namespace propagation
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} // namespace context
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OPENTELEMETRY_END_NAMESPACE |