1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef WEBKIT_BROWSER_APPCACHE_APPCACHE_BACKEND_IMPL_H_ 6 #define WEBKIT_BROWSER_APPCACHE_APPCACHE_BACKEND_IMPL_H_ 7 8 #include "base/containers/hash_tables.h" 9 #include "webkit/browser/appcache/appcache_host.h" 10 #include "webkit/browser/webkit_storage_browser_export.h" 11 12 namespace appcache { 13 14 class AppCacheServiceImpl; 15 16 class WEBKIT_STORAGE_BROWSER_EXPORT AppCacheBackendImpl { 17 public: 18 AppCacheBackendImpl(); 19 ~AppCacheBackendImpl(); 20 21 void Initialize(AppCacheServiceImpl* service, 22 AppCacheFrontend* frontend, 23 int process_id); 24 process_id()25 int process_id() const { return process_id_; } 26 27 // Methods to support the AppCacheBackend interface. A false return 28 // value indicates an invalid host_id and that no action was taken 29 // by the backend impl. 30 bool RegisterHost(int host_id); 31 bool UnregisterHost(int host_id); 32 bool SetSpawningHostId(int host_id, int spawning_host_id); 33 bool SelectCache(int host_id, 34 const GURL& document_url, 35 const int64 cache_document_was_loaded_from, 36 const GURL& manifest_url); 37 void GetResourceList( 38 int host_id, std::vector<AppCacheResourceInfo>* resource_infos); 39 bool SelectCacheForWorker(int host_id, int parent_process_id, 40 int parent_host_id); 41 bool SelectCacheForSharedWorker(int host_id, int64 appcache_id); 42 bool MarkAsForeignEntry(int host_id, const GURL& document_url, 43 int64 cache_document_was_loaded_from); 44 bool GetStatusWithCallback(int host_id, const GetStatusCallback& callback, 45 void* callback_param); 46 bool StartUpdateWithCallback(int host_id, const StartUpdateCallback& callback, 47 void* callback_param); 48 bool SwapCacheWithCallback(int host_id, const SwapCacheCallback& callback, 49 void* callback_param); 50 51 // Returns a pointer to a registered host. The backend retains ownership. GetHost(int host_id)52 AppCacheHost* GetHost(int host_id) { 53 HostMap::iterator it = hosts_.find(host_id); 54 return (it != hosts_.end()) ? (it->second) : NULL; 55 } 56 57 typedef base::hash_map<int, AppCacheHost*> HostMap; hosts()58 const HostMap& hosts() { return hosts_; } 59 60 // Methods to support cross site navigations. Hosts are transferred 61 // from process to process accordingly, deparented from the old 62 // processes backend and reparented to the new. 63 scoped_ptr<AppCacheHost> TransferHostOut(int host_id); 64 void TransferHostIn(int new_host_id, scoped_ptr<AppCacheHost> host); 65 66 private: 67 AppCacheServiceImpl* service_; 68 AppCacheFrontend* frontend_; 69 int process_id_; 70 HostMap hosts_; 71 }; 72 73 } // namespace 74 75 #endif // WEBKIT_BROWSER_APPCACHE_APPCACHE_BACKEND_IMPL_H_ 76