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1 // Copyright 2020 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "src/heap/cppgc/heap-space.h"
6 
7 #include <algorithm>
8 
9 #include "src/base/logging.h"
10 #include "src/base/platform/mutex.h"
11 #include "src/heap/cppgc/heap-page.h"
12 #include "src/heap/cppgc/object-start-bitmap.h"
13 
14 namespace cppgc {
15 namespace internal {
16 
BaseSpace(RawHeap * heap,size_t index,PageType type,bool is_compactable)17 BaseSpace::BaseSpace(RawHeap* heap, size_t index, PageType type,
18                      bool is_compactable)
19     : heap_(heap), index_(index), type_(type), is_compactable_(is_compactable) {
20   USE(is_compactable_);
21 }
22 
23 BaseSpace::~BaseSpace() = default;
24 
AddPage(BasePage * page)25 void BaseSpace::AddPage(BasePage* page) {
26   v8::base::LockGuard<v8::base::Mutex> lock(&pages_mutex_);
27   DCHECK_EQ(pages_.cend(), std::find(pages_.cbegin(), pages_.cend(), page));
28   pages_.push_back(page);
29 }
30 
RemovePage(BasePage * page)31 void BaseSpace::RemovePage(BasePage* page) {
32   v8::base::LockGuard<v8::base::Mutex> lock(&pages_mutex_);
33   auto it = std::find(pages_.cbegin(), pages_.cend(), page);
34   DCHECK_NE(pages_.cend(), it);
35   pages_.erase(it);
36 }
37 
RemoveAllPages()38 BaseSpace::Pages BaseSpace::RemoveAllPages() {
39   Pages pages = std::move(pages_);
40   pages_.clear();
41   return pages;
42 }
43 
NormalPageSpace(RawHeap * heap,size_t index,bool is_compactable)44 NormalPageSpace::NormalPageSpace(RawHeap* heap, size_t index,
45                                  bool is_compactable)
46     : BaseSpace(heap, index, PageType::kNormal, is_compactable) {}
47 
LargePageSpace(RawHeap * heap,size_t index)48 LargePageSpace::LargePageSpace(RawHeap* heap, size_t index)
49     : BaseSpace(heap, index, PageType::kLarge, false /* is_compactable */) {}
50 
51 }  // namespace internal
52 }  // namespace cppgc
53