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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 nsHashPropertyBag_h___
#define nsHashPropertyBag_h___
#include "nsIVariant.h"
#include "nsIWritablePropertyBag.h"
#include "nsIWritablePropertyBag2.h"
#include "nsCycleCollectionParticipant.h"
#include "nsInterfaceHashtable.h"
class nsHashPropertyBagBase : public nsIWritablePropertyBag,
public nsIWritablePropertyBag2 {
public:
nsHashPropertyBagBase() = default;
void CopyFrom(const nsHashPropertyBagBase* aOther);
void CopyFrom(nsIPropertyBag* aOther);
static void CopyFrom(nsIWritablePropertyBag* aTo, nsIPropertyBag* aFrom);
NS_DECL_NSIPROPERTYBAG
NS_DECL_NSIPROPERTYBAG2
NS_DECL_NSIWRITABLEPROPERTYBAG
NS_DECL_NSIWRITABLEPROPERTYBAG2
protected:
// a hash table of string -> nsIVariant
nsInterfaceHashtable<nsStringHashKey, nsIVariant> mPropertyHash;
};
class nsHashPropertyBag : public nsHashPropertyBagBase {
public:
nsHashPropertyBag() = default;
NS_DECL_THREADSAFE_ISUPPORTS
protected:
virtual ~nsHashPropertyBag();
};
/*
* Off Main Thread variant of nsHashPropertyBag. Instances of this class
* should not be created on a main thread, nor should it contain main thread
* only objects, such as XPCVariants. The purpose of this class is to provide a
* way to use the property bag off main thread.
* Note: this class needs to be created and destroyed on the same thread and
* should be used single threaded.
*/
class nsHashPropertyBagOMT final : public nsHashPropertyBagBase {
public:
nsHashPropertyBagOMT();
NS_DECL_ISUPPORTS
protected:
// Doesn't need to dispatch to main thread because it cannot contain
// XPCVariants
virtual ~nsHashPropertyBagOMT() = default;
};
/* A cycle collected nsHashPropertyBag for main-thread-only use. */
class nsHashPropertyBagCC final : public nsHashPropertyBagBase {
public:
nsHashPropertyBagCC() = default;
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsHashPropertyBagCC,
nsIWritablePropertyBag)
protected:
virtual ~nsHashPropertyBagCC() = default;
};
inline nsISupports* ToSupports(nsHashPropertyBagBase* aPropertyBag) {
return static_cast<nsIWritablePropertyBag*>(aPropertyBag);
}
#endif /* nsHashPropertyBag_h___ */
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