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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /xpcom/ds/nsHashPropertyBag.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'xpcom/ds/nsHashPropertyBag.h')
-rw-r--r-- | xpcom/ds/nsHashPropertyBag.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/xpcom/ds/nsHashPropertyBag.h b/xpcom/ds/nsHashPropertyBag.h new file mode 100644 index 0000000000..7a2e6b0ac8 --- /dev/null +++ b/xpcom/ds/nsHashPropertyBag.h @@ -0,0 +1,80 @@ +/* -*- 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___ */ |