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Nika Layzell c51090b135 Bug 2052614 - Add a structured RemoteType representation. r=ipc-reviewers,necko-reviewers,geckoview-reviewers,extension-reviewers,media-playback-reviewers,webrtc-reviewers,places-reviewers,layout-reviewers,dom-worker-reviewers,ai-platform-reviewers,sandbox-reviewers,janerik,emilio,hiro,kershaw,bwc,asuth,mccr8,alwu,nordzilla,valentin,bobowen
Replace bare remote type strings in C++ process-selection plumbing with
a RemoteType type which stores the parsed kind, isolation URI, and
process selection attributes directly.

This preserves the existing serialized string form for IPC and JS-facing
APIs, while making native callers use explicit predicates and structured
fields instead of manually parsing remote type prefixes and suffixes.

No JS-exposed API for parsing or otherwise interpreting remote types are
currently exposed in this patch. My current expectation is that this
will likely look like a `nsIRemoteType` interface which wraps this
`RemoteType` value type, exposing helpful getters for JS callers.

Differential Revision: https://phabricator.services.mozilla.com/D310442
2026-08-31 23:49:43 +00:00

70 lines
2.3 KiB
C++

/* 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_InProcessChild_h
#define mozilla_dom_InProcessChild_h
#include "mozilla/StaticPtr.h"
#include "mozilla/dom/JSProcessActorChild.h"
#include "mozilla/dom/PInProcessChild.h"
#include "mozilla/dom/ProcessActor.h"
#include "mozilla/dom/RemoteType.h"
#include "nsIDOMProcessChild.h"
namespace mozilla::dom {
class PWindowGlobalParent;
class PWindowGlobalChild;
class InProcessParent;
/**
* The `InProcessChild` class represents the child half of a main-thread to
* main-thread actor.
*
* The `PInProcess` actor should be used as an alternate manager to `PContent`
* for async actors which want to communicate uniformly between Content->Chrome
* and Chrome->Chrome situations.
*/
class InProcessChild final : public nsIDOMProcessChild,
public PInProcessChild,
public ProcessActor {
public:
friend class InProcessParent;
friend class PInProcessChild;
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMPROCESSCHILD
// Get the singleton instance of this actor.
static InProcessChild* Singleton();
// Get the parent side of the in-process child actor |aActor|. If |aActor| is
// not an in-process actor, or is not connected, this method will return
// |nullptr|.
static IProtocol* ParentActorFor(IProtocol* aActor);
const RemoteType& GetRemoteType() const override {
return RemoteType::NotRemote();
}
protected:
already_AddRefed<JSActor> InitJSActor(JS::Handle<JSObject*> aMaybeActor,
const nsACString& aName,
ErrorResult& aRv) override;
mozilla::ipc::IProtocol* AsNativeActor() override { return this; }
private:
// NOTE: PInProcess lifecycle management is declared as staic methods and
// state on InProcessParent, and implemented in InProcessImpl.cpp.
virtual void ActorDestroy(ActorDestroyReason aWhy) override;
~InProcessChild() = default;
static StaticRefPtr<InProcessChild> sSingleton;
nsRefPtrHashtable<nsCStringHashKey, JSProcessActorChild> mProcessActors;
};
} // namespace mozilla::dom
#endif // defined(mozilla_dom_InProcessChild_h)