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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef WEBKIT_GLUE_CACHE_MANAGER_H__
#define WEBKIT_GLUE_CACHE_MANAGER_H__
#include <stddef.h>
class CacheManager {
public:
struct UsageStats {
public:
// Capacities.
size_t min_dead_capacity;
size_t max_dead_capacity;
size_t capacity;
// Utilization.
size_t live_size;
size_t dead_size;
};
// A struct mirroring WebCore::Cache::TypeStatistic that we can send to the
// browser process.
struct ResourceTypeStat {
size_t count;
size_t size;
size_t live_size;
size_t decoded_size;
ResourceTypeStat()
: count(0), size(0), live_size(0), decoded_size(0) {}
};
// A struct mirroring WebCore::Cache::Statistics that we can send to the
// browser process.
struct ResourceTypeStats {
ResourceTypeStat images;
ResourceTypeStat css_stylesheets;
ResourceTypeStat scripts;
ResourceTypeStat xsl_stylesheets;
ResourceTypeStat fonts;
};
// Gets the usage statistics from the WebCore cache
static void GetUsageStats(UsageStats* result);
// Sets the capacities of the WebCore cache, evicting objects as necessary
static void SetCapacities(size_t min_dead_capacity,
size_t max_dead_capacity,
size_t capacity);
// Get usage stats about the WebCore cache.
static void GetResourceTypeStats(ResourceTypeStats* result);
private:
// This class only has static methods. It can't be instantiated
CacheManager();
~CacheManager();
DISALLOW_EVIL_CONSTRUCTORS(CacheManager);
};
#endif // WEBKIT_GLUE_CACHE_MANAGER_H__
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