From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- ipc/glue/ToplevelActorHolder.h | 45 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 ipc/glue/ToplevelActorHolder.h (limited to 'ipc/glue/ToplevelActorHolder.h') diff --git a/ipc/glue/ToplevelActorHolder.h b/ipc/glue/ToplevelActorHolder.h new file mode 100644 index 0000000000..6e95ef8565 --- /dev/null +++ b/ipc/glue/ToplevelActorHolder.h @@ -0,0 +1,45 @@ +/* -*- 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_IPC_TOPLEVELACTORHOLDER_H +#define MOZILLA_IPC_TOPLEVELACTORHOLDER_H + +#include "nsISupports.h" + +namespace mozilla::ipc { + +// Class to let us close the actor when we're not using it anymore. You +// should create a single instance of this, and when you have no more +// references it will be destroyed and will Close() the underlying +// top-level channel. +// When you want to send something, you use something like +// aActor->Actor()->SendFoo() + +// You can avoid calling Close() on an un-connected Actor (for example if +// Bind() fails) by calling RemoveActor(); +template +class ToplevelActorHolder final { + public: + NS_INLINE_DECL_REFCOUNTING_ONEVENTTARGET(ToplevelActorHolder) + + explicit ToplevelActorHolder(T* aActor) : mActor(aActor) {} + + constexpr T* Actor() const { return mActor; } + inline void RemoveActor() { mActor = nullptr; } + + private: + inline ~ToplevelActorHolder() { + if (mActor) { + mActor->Close(); + } + } + + RefPtr mActor; +}; + +} // namespace mozilla::ipc + +#endif // MOZILLA_IPC_TOPLEVELACTORHOLDER_H -- cgit v1.2.3