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// Copyright (c) 2009 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.
#ifndef WEBKIT_APPCACHE_APPCACHE_SERVICE_H_
#define WEBKIT_APPCACHE_APPCACHE_SERVICE_H_
#include "base/file_path.h"
#include "base/scoped_ptr.h"
#include "testing/gtest/include/gtest/gtest_prod.h"
#include "webkit/appcache/appcache_storage.h"
class URLRequestContext;
namespace appcache {
class AppCacheBackendImpl;
// Class that manages the application cache service. Sends notifications
// to many frontends. One instance per user-profile. Each instance has
// exclusive access to it's cache_directory on disk.
class AppCacheService {
public:
AppCacheService();
virtual ~AppCacheService();
void Initialize(const FilePath& cache_directory);
void PurgeMemory() {
if (storage_.get())
storage_->PurgeMemory();
}
// Context for use during cache updates, should only be accessed
// on the IO thread. We do NOT add a reference to the request context,
// it is the callers responsibility to ensure that the pointer
// remains valid while set.
URLRequestContext* request_context() const { return request_context_; }
void set_request_context(URLRequestContext* context) {
request_context_ = context;
}
// Track which processes are using this appcache service.
void RegisterBackend(AppCacheBackendImpl* backend_impl);
void UnregisterBackend(AppCacheBackendImpl* backend_impl);
AppCacheBackendImpl* GetBackend(int id) const {
BackendMap::const_iterator it = backends_.find(id);
return (it != backends_.end()) ? it->second : NULL;
}
AppCacheStorage* storage() const { return storage_.get(); }
protected:
// Deals with persistence.
scoped_ptr<AppCacheStorage> storage_;
// Track current processes. One 'backend' per child process.
typedef std::map<int, AppCacheBackendImpl*> BackendMap;
BackendMap backends_;
// Context for use during cache updates.
URLRequestContext* request_context_;
// TODO(jennb): service state: e.g. reached quota?
DISALLOW_COPY_AND_ASSIGN(AppCacheService);
};
} // namespace appcache
#endif // WEBKIT_APPCACHE_APPCACHE_SERVICE_H_
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