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// Copyright 2016 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 NET_LOG_NET_LOG_ENTRY_H_
#define NET_LOG_NET_LOG_ENTRY_H_
#include <memory>
#include "base/macros.h"
#include "base/time/time.h"
#include "net/base/net_export.h"
#include "net/log/net_log_capture_mode.h"
#include "net/log/net_log_event_type.h"
#include "net/log/net_log_parameters_callback.h"
#include "net/log/net_log_source.h"
namespace base {
class Value;
}
namespace net {
struct NET_EXPORT NetLogEntryData {
NetLogEntryData(NetLogEventType type,
NetLogSource source,
NetLogEventPhase phase,
base::TimeTicks time,
const NetLogParametersCallback* parameters_callback);
~NetLogEntryData();
const NetLogEventType type;
const NetLogSource source;
const NetLogEventPhase phase;
const base::TimeTicks time;
const NetLogParametersCallback* const parameters_callback;
};
// A NetLogEntry pre-binds NetLogEntryData to a capture mode, so observers will
// observe the output of ToValue() and ParametersToValue() at their log
// capture mode rather than the current maximum.
class NET_EXPORT NetLogEntry {
public:
NetLogEntry(const NetLogEntryData* data, NetLogCaptureMode capture_mode);
~NetLogEntry();
NetLogEventType type() const { return data_->type; }
NetLogSource source() const { return data_->source; }
NetLogEventPhase phase() const { return data_->phase; }
// Serializes the specified event to a Value. The Value also includes the
// current time. Takes in a time to allow back-dating entries.
std::unique_ptr<base::Value> ToValue() const;
// Returns the parameters as a Value. Returns nullptr if there are no
// parameters.
std::unique_ptr<base::Value> ParametersToValue() const;
private:
const NetLogEntryData* const data_;
// Log capture mode when the event occurred.
const NetLogCaptureMode capture_mode_;
// It is not safe to copy this class, since |parameters_callback_| may
// include pointers that become stale immediately after the event is added,
// even if the code were modified to keep its own copy of the callback.
DISALLOW_COPY_AND_ASSIGN(NetLogEntry);
};
} // namespace net
#endif // NET_LOG_NET_LOG_ENTRY_H_
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