mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 14:26:09 +03:00
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
// Copyright (c) 2011 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.
|
|
|
|
// This file provides support for basic in-memory tracing of short events. We
|
|
// keep a static circular buffer where we store the last traced events, so we
|
|
// can review the cache recent behavior should we need it.
|
|
|
|
#ifndef NET_DISK_CACHE_BLOCKFILE_TRACE_H_
|
|
#define NET_DISK_CACHE_BLOCKFILE_TRACE_H_
|
|
|
|
#include "base/macros.h"
|
|
#include "base/memory/ref_counted.h"
|
|
#include "net/base/net_export.h"
|
|
|
|
namespace disk_cache {
|
|
|
|
// Create and destroy the tracing buffer.
|
|
void InitTrace(void);
|
|
void DestroyTrace(void);
|
|
|
|
// Simple class to handle the trace buffer lifetime. Any object interested in
|
|
// tracing should keep a reference to the object returned by GetTraceObject().
|
|
class TraceObject : public base::RefCountedThreadSafe<TraceObject> {
|
|
friend class base::RefCountedThreadSafe<TraceObject>;
|
|
|
|
public:
|
|
static TraceObject* GetTraceObject();
|
|
void EnableTracing(bool enable);
|
|
|
|
private:
|
|
TraceObject();
|
|
~TraceObject();
|
|
DISALLOW_COPY_AND_ASSIGN(TraceObject);
|
|
};
|
|
|
|
// Traces to the internal buffer.
|
|
NET_EXPORT_PRIVATE void Trace(const char* format, ...);
|
|
|
|
} // namespace disk_cache
|
|
|
|
#endif // NET_DISK_CACHE_BLOCKFILE_TRACE_H_
|