js/src/gc/Heap-inl.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: set ts=8 sts=2 et sw=2 tw=80:
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef gc_Heap_inl_h
   8 #define gc_Heap_inl_h
   9
  10 #include "gc/Heap.h"
  11
  12 #include "gc/StoreBuffer.h"
  13 #include "gc/Zone.h"
  14 #include "util/Poison.h"
  15 #include "vm/Runtime.h"
  16
  17 inline void js::gc::Arena::init(JS::Zone* zoneArg, AllocKind kind,
  18                                 const AutoLockGC& lock) {
  19 #ifdef DEBUG
  20   MOZ_MAKE_MEM_DEFINED(&zone, sizeof(zone));
  21   MOZ_ASSERT((uintptr_t(zone) & 0xff) == JS_FREED_ARENA_PATTERN);
  22 #endif
  23
  24   MOZ_ASSERT(firstFreeSpan.isEmpty());
  25   MOZ_ASSERT(!allocated());
  26   MOZ_ASSERT(!onDelayedMarkingList_);
  27   MOZ_ASSERT(!hasDelayedBlackMarking_);
  28   MOZ_ASSERT(!hasDelayedGrayMarking_);
  29   MOZ_ASSERT(!nextDelayedMarkingArena_);
  30
  31   MOZ_MAKE_MEM_UNDEFINED(this, ArenaSize);
  32
  33   zone = zoneArg;
  34   allocKind = kind;
  35   isNewlyCreated_ = 1;
  36   onDelayedMarkingList_ = 0;
  37   hasDelayedBlackMarking_ = 0;
  38   hasDelayedGrayMarking_ = 0;
  39   nextDelayedMarkingArena_ = 0;
  40   if (zone->isAtomsZone()) {
  41     zone->runtimeFromAnyThread()->gc.atomMarking.registerArena(this, lock);
  42   } else {
  43     bufferedCells() = &ArenaCellSet::Empty;
  44   }
  45
  46   setAsFullyUnused();
  47
  48 #ifdef DEBUG
  49   checkNoMarkedCells();
  50 #endif
  51 }
  52
  53 inline void js::gc::Arena::release(const AutoLockGC& lock) {
  54   if (zone->isAtomsZone()) {
  55     zone->runtimeFromAnyThread()->gc.atomMarking.unregisterArena(this, lock);
  56   }
  57   setAsNotAllocated();
  58 }
  59
  60 inline js::gc::ArenaCellSet*& js::gc::Arena::bufferedCells() {
  61   MOZ_ASSERT(zone && !zone->isAtomsZone());
  62   return bufferedCells_;
  63 }
  64
  65 inline size_t& js::gc::Arena::atomBitmapStart() {
  66   MOZ_ASSERT(zone && zone->isAtomsZone());
  67   return atomBitmapStart_;
  68 }
  69
  70 #endif