null_logger.hpp

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#pragma once
 
/// @file userver/logging/null_logger.hpp
/// @brief @copybrief logging::MakeNullLogger()
 
#include <userver/logging/fwd.hpp>
 
USERVER_NAMESPACE_BEGIN
 
namespace logging {
 
/// @brief Returns a logger that drops all incoming messages
/// @see components::Logging
TextLoggerRef GetNullLogger() noexcept;
 
/// @brief Creates a logger that drops all incoming messages.
///
/// Use GetNullLogger() is you need a reference to logger.
///
/// @see components::Logging
TextLoggerPtr MakeNullLogger();
 
namespace impl {
 
// Creates a logger that drops all incoming messages, but
// * reports log level INFO (customizable) to force forming those messages;
// * uses Formats::kRaw to produce reasonable CPU usage for formatting logs.
TextLoggerPtr MakeNoopLoggerForTests();
 
}  // namespace impl
 
}  // namespace logging
 
USERVER_NAMESPACE_END