blob: f978e8adf3173135ac95e24d3f92de8e259e11ed [file] [log] [blame]
// Copyright (c) 2012 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/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/sequenced_task_runner_helpers.h"
#include "content/browser/appcache/appcache_backend_impl.h"
#include "content/browser/appcache/appcache_policy.h"
#include "content/browser/appcache/appcache_service_impl.h"
#include "content/common/appcache.mojom.h"
#include "content/common/content_export.h"
#include "mojo/public/cpp/bindings/strong_binding_set.h"
#include "storage/browser/quota/special_storage_policy.h"
namespace base {
class FilePath;
namespace net {
class URLRequestContextGetter;
namespace content {
class ResourceContext;
struct ChromeAppCacheServiceDeleter;
// An AppCacheServiceImpl subclass used by the chrome. There is an instance
// associated with each BrowserContext. This derivation adds refcounting
// semantics since a browser context has multiple URLRequestContexts which refer
// to the same object, and those URLRequestContexts are refcounted independently
// of the owning browser context.
// All methods, except the ctor, are expected to be called on
// the IO thread (unless specifically called out in doc comments).
// TODO(dpranke): Fix dependencies on AppCacheServiceImpl so that we don't have
// to worry about clients calling AppCacheServiceImpl methods.
class CONTENT_EXPORT ChromeAppCacheService
: public base::RefCountedThreadSafe<ChromeAppCacheService,
public AppCacheServiceImpl,
public AppCachePolicy {
explicit ChromeAppCacheService(storage::QuotaManagerProxy* proxy);
// If |cache_path| is empty we will use in-memory structs.
void InitializeOnIOThread(
const base::FilePath& cache_path,
ResourceContext* resource_context,
scoped_refptr<net::URLRequestContextGetter> request_context_getter,
scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy);
void Bind(std::unique_ptr<mojom::AppCacheBackend> backend,
mojom::AppCacheBackendRequest request,
int process_id);
// Unbinds the pipe corresponding to the given process_id. Unbinding
// unregisters and destroys the existing backend for that process_id.
// The function must be called before a new backend is created for the given
// process_id to ensure that there is at most one backend per process_id.
// The function does nothing if no pipe was bound.
void Unbind(int process_id);
void Shutdown();
// AppCachePolicy overrides
bool CanLoadAppCache(const GURL& manifest_url,
const GURL& first_party) override;
bool CanCreateAppCache(const GURL& manifest_url,
const GURL& first_party) override;
// AppCacheServiceImpl override
void UnregisterBackend(AppCacheBackendImpl* backend_impl) override;
~ChromeAppCacheService() override;
friend class base::DeleteHelper<ChromeAppCacheService>;
friend class base::RefCountedThreadSafe<ChromeAppCacheService,
friend struct ChromeAppCacheServiceDeleter;
void DeleteOnCorrectThread() const;
ResourceContext* resource_context_;
base::FilePath cache_path_;
mojo::StrongBindingSet<mojom::AppCacheBackend> bindings_;
// A map from a process_id to a binding_id.
std::map<int, mojo::BindingId> process_bindings_;
struct ChromeAppCacheServiceDeleter {
static void Destruct(const ChromeAppCacheService* service) {
} // namespace content