blob: bd6f440823e8518b5b822808155a7f45817cfd13 [file] [log] [blame]
// 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.
#include "base/containers/hash_tables.h"
#include "content/browser/appcache/appcache_host.h"
#include "content/common/content_export.h"
namespace content {
class AppCacheServiceImpl;
class CONTENT_EXPORT AppCacheBackendImpl {
void Initialize(AppCacheServiceImpl* service,
AppCacheFrontend* frontend,
int process_id);
int process_id() const { return process_id_; }
// Methods to support the AppCacheBackend interface. A false return
// value indicates an invalid host_id and that no action was taken
// by the backend impl.
bool RegisterHost(int host_id);
bool UnregisterHost(int host_id);
bool SetSpawningHostId(int host_id, int spawning_host_id);
bool SelectCache(int host_id,
const GURL& document_url,
const int64 cache_document_was_loaded_from,
const GURL& manifest_url);
void GetResourceList(
int host_id, std::vector<AppCacheResourceInfo>* resource_infos);
bool SelectCacheForWorker(int host_id, int parent_process_id,
int parent_host_id);
bool SelectCacheForSharedWorker(int host_id, int64 appcache_id);
bool MarkAsForeignEntry(int host_id, const GURL& document_url,
int64 cache_document_was_loaded_from);
bool GetStatusWithCallback(int host_id, const GetStatusCallback& callback,
void* callback_param);
bool StartUpdateWithCallback(int host_id, const StartUpdateCallback& callback,
void* callback_param);
bool SwapCacheWithCallback(int host_id, const SwapCacheCallback& callback,
void* callback_param);
// 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 base::hash_map<int, AppCacheHost*> HostMap;
const HostMap& hosts() { return hosts_; }
// Methods to support cross site navigations. Hosts are transferred
// from process to process accordingly, deparented from the old
// processes backend and reparented to the new.
scoped_ptr<AppCacheHost> TransferHostOut(int host_id);
void TransferHostIn(int new_host_id, scoped_ptr<AppCacheHost> host);
AppCacheServiceImpl* service_;
AppCacheFrontend* frontend_;
int process_id_;
HostMap hosts_;
} // namespace