js/src/gc/Heap-inl.h
author Jon Coppeard <jcoppeard@mozilla.com>
Mon, 26 Nov 2018 13:34:01 +0000
changeset 507198 d7336bdef207654c48c3e0c6c976f3ed65fe5ccd
parent 494169 68e5c74b6e90baf1212846920435dbe0ae17f346
child 508163 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1509824 - Remove Arena::markOverflow flag r=sfink

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * vim: set ts=8 sts=4 et sw=4 tw=99:
 * 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 gc_Heap_inl_h
#define gc_Heap_inl_h

#include "gc/Heap.h"

#include "gc/StoreBuffer.h"
#include "gc/Zone.h"

inline void
js::gc::Arena::init(JS::Zone* zoneArg, AllocKind kind, const AutoLockGC& lock)
{
    MOZ_ASSERT(firstFreeSpan.isEmpty());
    MOZ_ASSERT(!zone);
    MOZ_ASSERT(!allocated());
    MOZ_ASSERT(!hasDelayedMarking);
    MOZ_ASSERT(!auxNextLink);

    MOZ_MAKE_MEM_UNDEFINED(this, ArenaSize);

    zone = zoneArg;
    allocKind = size_t(kind);
    hasDelayedMarking = 0;
    auxNextLink = 0;
    if (zone->isAtomsZone()) {
        zone->runtimeFromAnyThread()->gc.atomMarking.registerArena(this, lock);
    } else {
        bufferedCells() = &ArenaCellSet::Empty;
    }

    setAsFullyUnused();
}

inline void
js::gc::Arena::release(const AutoLockGC& lock)
{
    if (zone->isAtomsZone()) {
        zone->runtimeFromAnyThread()->gc.atomMarking.unregisterArena(this, lock);
    }
    setAsNotAllocated();
}

inline js::gc::ArenaCellSet*&
js::gc::Arena::bufferedCells()
{
    MOZ_ASSERT(zone && !zone->isAtomsZone());
    return bufferedCells_;
}

inline size_t&
js::gc::Arena::atomBitmapStart()
{
    MOZ_ASSERT(zone && zone->isAtomsZone());
    return atomBitmapStart_;
}

#endif