content/browser/cache_storage/cache_storage_context_impl.h

   1 // Copyright 2015 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_CACHE_STORAGE_CACHE_STORAGE_CONTEXT_IMPL_H_
   6 #define CONTENT_BROWSER_CACHE_STORAGE_CACHE_STORAGE_CONTEXT_IMPL_H_
   7
   8 #include "base/files/file_path.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "content/common/content_export.h"
  12
  13 namespace base {
  14 class FilePath;
  15 class SequencedTaskRunner;
  16 }
  17
  18 namespace net {
  19 class URLRequestContextGetter;
  20 }
  21
  22 namespace storage {
  23 class QuotaManagerProxy;
  24 class SpecialStoragePolicy;
  25 }
  26
  27 namespace content {
  28
  29 class BrowserContext;
  30 class ChromeBlobStorageContext;
  31 class CacheStorageManager;
  32
  33 // One instance of this exists per StoragePartition, and services multiple
  34 // child processes/origins. Most logic is delegated to the owned
  35 // CacheStorageManager instance, which is only accessed on the IO
  36 // thread.
  37 // TODO(jsbell): Derive from a public CacheStorageContext. crbug.com/466371
  38 class CONTENT_EXPORT CacheStorageContextImpl
  39     : public base::RefCountedThreadSafe<CacheStorageContextImpl> {
  40  public:
  41   explicit CacheStorageContextImpl(BrowserContext* browser_context);
  42
  43   // Init and Shutdown are for use on the UI thread when the profile,
  44   // storagepartition is being setup and torn down.
  45   void Init(const base::FilePath& user_data_directory,
  46             storage::QuotaManagerProxy* quota_manager_proxy,
  47             storage::SpecialStoragePolicy* special_storage_policy);
  48   void Shutdown();
  49
  50   // Only callable on the IO thread.
  51   CacheStorageManager* cache_manager() const;
  52
  53   bool is_incognito() const { return is_incognito_; }
  54
  55   // The URLRequestContext doesn't exist until after the StoragePartition is
  56   // made (which is after this object is made). This function must be called
  57   // after this object is created but before any CacheStorageCache operations.
  58   // It must be called on the IO thread. If either parameter is NULL the
  59   // function immediately returns without forwarding to the
  60   // CacheStorageManager.
  61   void SetBlobParametersForCache(
  62       net::URLRequestContextGetter* request_context,
  63       ChromeBlobStorageContext* blob_storage_context);
  64
  65  private:
  66   friend class base::RefCountedThreadSafe<CacheStorageContextImpl>;
  67
  68   ~CacheStorageContextImpl();
  69
  70   void CreateCacheStorageManager(
  71       const base::FilePath& user_data_directory,
  72       const scoped_refptr<base::SequencedTaskRunner>& cache_task_runner,
  73       storage::QuotaManagerProxy* quota_manager_proxy,
  74       storage::SpecialStoragePolicy* special_storage_policy);
  75
  76   void ShutdownOnIO();
  77
  78   // Initialized in Init(); true if the user data directory is empty.
  79   bool is_incognito_ = false;
  80
  81   // Only accessed on the IO thread.
  82   scoped_ptr<CacheStorageManager> cache_manager_;
  83 };
  84
  85 }  // namespace content
  86
  87 #endif  // CONTENT_BROWSER_CACHE_STORAGE_CACHE_STORAGE_CONTEXT_IMPL_H_