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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_cache_DBAction_h
#define mozilla_dom_cache_DBAction_h
#include "mozilla/dom/cache/Action.h"
#include "mozilla/RefPtr.h"
#include "nsString.h"
class mozIStorageConnection;
class nsIFile;
namespace mozilla {
namespace dom {
namespace cache {
Result<nsCOMPtr<mozIStorageConnection>, nsresult> OpenDBConnection(
const QuotaInfo& aQuotaInfo, nsIFile& aDBFile);
class DBAction : public Action {
protected:
// The mode specifies whether the database should already exist or if its
// ok to create a new database.
enum Mode { Existing, Create };
explicit DBAction(Mode aMode);
// Action objects are deleted through their base pointer
virtual ~DBAction();
// Just as the resolver must be ref'd until resolve, you may also
// ref the DB connection. The connection can only be referenced from the
// target thread and must be released upon resolve.
virtual void RunWithDBOnTarget(SafeRefPtr<Resolver> aResolver,
const QuotaInfo& aQuotaInfo, nsIFile* aDBDir,
mozIStorageConnection* aConn) = 0;
private:
void RunOnTarget(SafeRefPtr<Resolver> aResolver, const QuotaInfo& aQuotaInfo,
Data* aOptionalData) override;
Result<nsCOMPtr<mozIStorageConnection>, nsresult> OpenConnection(
const QuotaInfo& aQuotaInfo, nsIFile& aDBDir);
const Mode mMode;
};
class SyncDBAction : public DBAction {
protected:
explicit SyncDBAction(Mode aMode);
// Action objects are deleted through their base pointer
virtual ~SyncDBAction();
virtual nsresult RunSyncWithDBOnTarget(const QuotaInfo& aQuotaInfo,
nsIFile* aDBDir,
mozIStorageConnection* aConn) = 0;
private:
virtual void RunWithDBOnTarget(SafeRefPtr<Resolver> aResolver,
const QuotaInfo& aQuotaInfo, nsIFile* aDBDir,
mozIStorageConnection* aConn) override;
};
} // namespace cache
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_cache_DBAction_h