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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_QUICK_START_LOGGING_H_
#define CHROMEOS_ASH_COMPONENTS_QUICK_START_LOGGING_H_
#include <sstream>
#include <string_view>
#include "base/logging.h"
namespace ash::quick_start {
// Use the QS_LOG() macro for all logging related to Quick Start.
#define QS_LOG(severity) \
ScopedLogMessage(std::string_view(__FILE__, std::size(__FILE__)), __LINE__, \
logging::LOGGING_##severity) \
.stream()
// An intermediate object used by the QS_LOG macro, wrapping a
// logging::LogMessage instance. When this object is destroyed, the message will
// be logged with the standard logging system.
class ScopedLogMessage {
public:
ScopedLogMessage(std::string_view file,
int line,
logging::LogSeverity severity);
ScopedLogMessage(const ScopedLogMessage&) = delete;
ScopedLogMessage& operator=(const ScopedLogMessage&) = delete;
~ScopedLogMessage();
std::ostream& stream() { return stream_; }
private:
bool ShouldEmitToStandardLog() const;
const std::string_view file_;
int line_;
logging::LogSeverity severity_;
std::ostringstream stream_;
};
} // namespace ash::quick_start
#endif // CHROMEOS_ASH_COMPONENTS_QUICK_START_LOGGING_H_
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