content/browser/service_worker/service_worker_script_cache_map.h

   1 // Copyright 2014 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 CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CACHE_MAP_H_
   6 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CACHE_MAP_H_
   7
   8 #include <map>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "content/browser/service_worker/service_worker_database.h"
  14 #include "content/common/content_export.h"
  15 #include "net/url_request/url_request_status.h"
  16
  17 class GURL;
  18
  19 namespace content {
  20
  21 class ServiceWorkerContextCore;
  22 class ServiceWorkerVersion;
  23
  24 // Class that maintains the mapping between urls and a resource id
  25 // for a particular version's implicit script resources.
  26 class CONTENT_EXPORT ServiceWorkerScriptCacheMap {
  27  public:
  28   int64 LookupResourceId(const GURL& url);
  29   // A size of -1 means that we don't know the size yet
  30   // (it has not finished caching).
  31   int64 LookupResourceSize(const GURL& url);
  32
  33   // Used during the initial run of a new version to build the map
  34   // of resources ids.
  35   void NotifyStartedCaching(const GURL& url, int64 resource_id);
  36   void NotifyFinishedCaching(const GURL& url,
  37                              int64 size_bytes,
  38                              const net::URLRequestStatus& status);
  39
  40   // Used to retrieve the results of the initial run of a new version.
  41   void GetResources(
  42       std::vector<ServiceWorkerDatabase::ResourceRecord>* resources);
  43
  44   // Used when loading an existing version.
  45   void SetResources(
  46      const std::vector<ServiceWorkerDatabase::ResourceRecord>& resources);
  47
  48   size_t size() const { return resource_map_.size(); }
  49
  50   const net::URLRequestStatus& main_script_status() const {
  51     return main_script_status_;
  52   }
  53
  54  private:
  55   typedef std::map<GURL, ServiceWorkerDatabase::ResourceRecord> ResourceMap;
  56
  57   // The version objects owns its script cache and provides a rawptr to it.
  58   friend class ServiceWorkerVersion;
  59   ServiceWorkerScriptCacheMap(
  60       ServiceWorkerVersion* owner,
  61       base::WeakPtr<ServiceWorkerContextCore> context);
  62   ~ServiceWorkerScriptCacheMap();
  63
  64   ServiceWorkerVersion* owner_;
  65   base::WeakPtr<ServiceWorkerContextCore> context_;
  66   ResourceMap resource_map_;
  67   net::URLRequestStatus main_script_status_;
  68
  69   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerScriptCacheMap);
  70 };
  71
  72 }  // namespace content
  73
  74 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_SCRIPT_CACHE_MAP_H_