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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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/. */
#include "mozilla/DebugOnly.h"
#include "jscompartment.h"
#include "jsgc.h"
#include "gc/GCInternals.h"
#include "js/HashTable.h"
#include "vm/Runtime.h"
#include "jscntxtinlines.h"
#include "jsgcinlines.h"
using namespace js;
using namespace js::gc;
static void
IterateCompartmentsArenasCells(JSContext* cx, Zone* zone, void* data,
JSIterateCompartmentCallback compartmentCallback,
IterateArenaCallback arenaCallback,
IterateCellCallback cellCallback)
{
for (CompartmentsInZoneIter comp(zone); !comp.done(); comp.next())
(*compartmentCallback)(cx, data, comp);
for (auto thingKind : AllAllocKinds()) {
JS::TraceKind traceKind = MapAllocToTraceKind(thingKind);
size_t thingSize = Arena::thingSize(thingKind);
for (ArenaIter aiter(zone, thingKind); !aiter.done(); aiter.next()) {
Arena* arena = aiter.get();
(*arenaCallback)(cx, data, arena, traceKind, thingSize);
for (ArenaCellIter iter(arena); !iter.done(); iter.next())
(*cellCallback)(cx, data, iter.getCell(), traceKind, thingSize);
}
}
}
void
js::IterateZonesCompartmentsArenasCells(JSContext* cx, void* data,
IterateZoneCallback zoneCallback,
JSIterateCompartmentCallback compartmentCallback,
IterateArenaCallback arenaCallback,
IterateCellCallback cellCallback)
{
AutoPrepareForTracing prop(cx, WithAtoms);
for (ZonesIter zone(cx, WithAtoms); !zone.done(); zone.next()) {
(*zoneCallback)(cx, data, zone);
IterateCompartmentsArenasCells(cx, zone, data,
compartmentCallback, arenaCallback, cellCallback);
}
}
void
js::IterateZoneCompartmentsArenasCells(JSContext* cx, Zone* zone, void* data,
IterateZoneCallback zoneCallback,
JSIterateCompartmentCallback compartmentCallback,
IterateArenaCallback arenaCallback,
IterateCellCallback cellCallback)
{
AutoPrepareForTracing prop(cx, WithAtoms);
(*zoneCallback)(cx, data, zone);
IterateCompartmentsArenasCells(cx, zone, data,
compartmentCallback, arenaCallback, cellCallback);
}
void
js::IterateChunks(JSContext* cx, void* data, IterateChunkCallback chunkCallback)
{
AutoPrepareForTracing prep(cx, SkipAtoms);
for (auto chunk = cx->gc.allNonEmptyChunks(); !chunk.done(); chunk.next())
chunkCallback(cx, data, chunk);
}
void
js::IterateScripts(JSContext* cx, JSCompartment* compartment,
void* data, IterateScriptCallback scriptCallback)
{
MOZ_ASSERT(!cx->mainThread().suppressGC);
AutoEmptyNursery empty(cx);
AutoPrepareForTracing prep(cx, SkipAtoms);
if (compartment) {
Zone* zone = compartment->zone();
for (auto script = zone->cellIter<JSScript>(empty); !script.done(); script.next()) {
if (script->compartment() == compartment)
scriptCallback(cx, data, script);
}
} else {
for (ZonesIter zone(cx, SkipAtoms); !zone.done(); zone.next()) {
for (auto script = zone->cellIter<JSScript>(empty); !script.done(); script.next())
scriptCallback(cx, data, script);
}
}
}
static void
IterateGrayObjects(Zone* zone, GCThingCallback cellCallback, void* data)
{
for (auto kind : ObjectAllocKinds()) {
for (GrayObjectIter obj(zone, kind); !obj.done(); obj.next()) {
if (obj->asTenured().isMarked(GRAY))
cellCallback(data, JS::GCCellPtr(obj.get()));
}
}
}
void
js::IterateGrayObjects(Zone* zone, GCThingCallback cellCallback, void* data)
{
JSRuntime* rt = zone->runtimeFromMainThread();
MOZ_ASSERT(!rt->isHeapBusy());
AutoPrepareForTracing prep(rt->contextFromMainThread(), SkipAtoms);
::IterateGrayObjects(zone, cellCallback, data);
}
void
js::IterateGrayObjectsUnderCC(Zone* zone, GCThingCallback cellCallback, void* data)
{
mozilla::DebugOnly<JSRuntime*> rt = zone->runtimeFromMainThread();
MOZ_ASSERT(rt->isCycleCollecting());
MOZ_ASSERT(!rt->gc.isIncrementalGCInProgress());
::IterateGrayObjects(zone, cellCallback, data);
}
JS_PUBLIC_API(void)
JS_IterateCompartments(JSContext* cx, void* data,
JSIterateCompartmentCallback compartmentCallback)
{
AutoTraceSession session(cx);
for (CompartmentsIter c(cx, WithAtoms); !c.done(); c.next())
(*compartmentCallback)(cx, data, c);
}
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