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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_NETWORK_NETWORK_EVENT_LOG_H_
#define CHROMEOS_NETWORK_NETWORK_EVENT_LOG_H_
#include <deque>
#include <string>
#include "base/strings/stringprintf.h"
#include "base/time/time.h"
#include "chromeos/chromeos_export.h"
#include "components/device_event_log/device_event_log.h"
namespace base {
class Value;
}
namespace chromeos {
// Namespace for functions for logging network events.
namespace network_event_log {
namespace internal {
// Adds an entry to the event log at level specified by |log_level|.
// A maximum number of events are recorded after which new events replace
// old ones. Error events are prioritized such that error events will only be
// deleted if more than least half of the entries are errors (at which point
// the oldest error entry will be replaced). Does nothing unless Initialize()
// has been called. NOTE: Generally use NET_LOG instead.
CHROMEOS_EXPORT void AddEntry(const char* file,
int file_line,
device_event_log::LogLevel log_level,
const std::string& event,
const std::string& description);
} // namespace internal
// Helper function for displaying a value as a string.
CHROMEOS_EXPORT std::string ValueAsString(const base::Value& value);
// Errors
#define NET_LOG_ERROR(event, desc) \
NET_LOG_LEVEL(::device_event_log::LOG_LEVEL_ERROR, event, desc)
// Chrome initiated events, e.g. connection requests, scan requests,
// configuration removal (either from the UI or from ONC policy application).
#define NET_LOG_USER(event, desc) \
NET_LOG_LEVEL(::device_event_log::LOG_LEVEL_USER, event, desc)
// Important events, e.g. state updates
#define NET_LOG_EVENT(event, desc) \
NET_LOG_LEVEL(::device_event_log::LOG_LEVEL_EVENT, event, desc)
// Non-essential debugging events
#define NET_LOG_DEBUG(event, desc) \
NET_LOG_LEVEL(::device_event_log::LOG_LEVEL_DEBUG, event, desc)
// Macro to include file and line number info in the event log.
#define NET_LOG_LEVEL(log_level, event, description) \
::device_event_log::AddEntryWithDescription( \
__FILE__, __LINE__, ::device_event_log::LOG_TYPE_NETWORK, log_level, \
event, description)
} // namespace network_event_log
} // namespace chromeos
#endif // CHROMEOS_NETWORK_NETWORK_EVENT_LOG_H_
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