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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/. */
/*
* Various interfaces to iterate over the Realms given various context such as
* principals, compartments and GC zones.
*/
#ifndef js_RealmIterators_h
#define js_RealmIterators_h
#include "js/GCAPI.h"
#include "js/TypeDecls.h"
struct JSPrincipals;
namespace JS {
class JS_PUBLIC_API AutoRequireNoGC;
using IterateRealmCallback = void (*)(JSContext* cx, void* data, Realm* realm,
const AutoRequireNoGC& nogc);
/**
* This function calls |realmCallback| on every realm. Beware that there is no
* guarantee that the realm will survive after the callback returns. Also,
* barriers are disabled via the TraceSession.
*/
extern JS_PUBLIC_API void IterateRealms(JSContext* cx, void* data,
IterateRealmCallback realmCallback);
/**
* Like IterateRealms, but only call the callback for realms using |principals|.
*/
extern JS_PUBLIC_API void IterateRealmsWithPrincipals(
JSContext* cx, JSPrincipals* principals, void* data,
IterateRealmCallback realmCallback);
/**
* Like IterateRealms, but only iterates realms in |compartment|.
*/
extern JS_PUBLIC_API void IterateRealmsInCompartment(
JSContext* cx, JS::Compartment* compartment, void* data,
IterateRealmCallback realmCallback);
/**
* An enum that JSIterateCompartmentCallback can return to indicate
* whether to keep iterating.
*/
enum class CompartmentIterResult { KeepGoing, Stop };
} // namespace JS
using JSIterateCompartmentCallback =
JS::CompartmentIterResult (*)(JSContext*, void*, JS::Compartment*);
/**
* This function calls |compartmentCallback| on every compartment until either
* all compartments have been iterated or CompartmentIterResult::Stop is
* returned. Beware that there is no guarantee that the compartment will survive
* after the callback returns. Also, barriers are disabled via the TraceSession.
*/
extern JS_PUBLIC_API void JS_IterateCompartments(
JSContext* cx, void* data,
JSIterateCompartmentCallback compartmentCallback);
/**
* This function calls |compartmentCallback| on every compartment in the given
* zone until either all compartments have been iterated or
* CompartmentIterResult::Stop is returned. Beware that there is no guarantee
* that the compartment will survive after the callback returns. Also, barriers
* are disabled via the TraceSession.
*/
extern JS_PUBLIC_API void JS_IterateCompartmentsInZone(
JSContext* cx, JS::Zone* zone, void* data,
JSIterateCompartmentCallback compartmentCallback);
#endif /* js_RealmIterators_h */