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// Copyright (c) 2006-2008 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 WEBKIT_APPCACHE_APPCACHE_BACKEND_IMPL_H_
#define WEBKIT_APPCACHE_APPCACHE_BACKEND_IMPL_H_
#include <map>
#include "base/logging.h"
#include "base/task.h"
#include "webkit/appcache/appcache_host.h"
#include "webkit/appcache/appcache_interfaces.h"
namespace appcache {
class AppCacheService;
typedef Callback2<Status, void*>::Type GetStatusCallback;
typedef Callback2<bool, void*>::Type StartUpdateCallback;
typedef Callback2<bool, void*>::Type SwapCacheCallback;
class AppCacheBackendImpl : public AppCacheBackend {
public:
AppCacheBackendImpl() : service_(NULL), frontend_(NULL), process_id_(0) {}
~AppCacheBackendImpl();
void Initialize(AppCacheService* service,
AppCacheFrontend* frontend,
int process_id);
int process_id() const { return process_id_; }
// Returns a pointer to a registered host. The backend retains ownership.
AppCacheHost* GetHost(int host_id) {
HostMap::iterator it = hosts_.find(host_id);
return (it != hosts_.end()) ? &(it->second) : NULL;
}
typedef std::map<int, AppCacheHost> HostMap;
const HostMap& hosts() { return hosts_; }
// AppCacheBackend methods
virtual void RegisterHost(int host_id);
virtual void UnregisterHost(int host_id);
virtual void SelectCache(int host_id,
const GURL& document_url,
const int64 cache_document_was_loaded_from,
const GURL& manifest_url);
virtual void MarkAsForeignEntry(int host_id, const GURL& document_url,
int64 cache_document_was_loaded_from);
// We don't use the sync variants in the backend, would block the IO thread.
virtual Status GetStatus(int host_id) { NOTREACHED(); return UNCACHED; }
virtual bool StartUpdate(int host_id) { NOTREACHED(); return false; }
virtual bool SwapCache(int host_id) { NOTREACHED(); return false; }
// Async variants of the sync methods defined in the backend interface.
void GetStatusWithCallback(int host_id, GetStatusCallback* callback,
void* callback_param);
void StartUpdateWithCallback(int host_id, StartUpdateCallback* callback,
void* callback_param);
void SwapCacheWithCallback(int host_id, SwapCacheCallback* callback,
void* callback_param);
private:
AppCacheService* service_;
AppCacheFrontend* frontend_;
int process_id_;
HostMap hosts_;
};
} // namespace
#endif // WEBKIT_APPCACHE_APPCACHE_BACKEND_IMPL_H_
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