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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_COMPILER_ZONE_STATS_H_ | 5 #ifndef V8_COMPILER_ZONE_POOL_H_ |
6 #define V8_COMPILER_ZONE_STATS_H_ | 6 #define V8_COMPILER_ZONE_POOL_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <set> | 9 #include <set> |
10 #include <vector> | 10 #include <vector> |
11 | 11 |
12 #include "src/zone/zone.h" | 12 #include "src/zone/zone.h" |
13 | 13 |
14 namespace v8 { | 14 namespace v8 { |
15 namespace internal { | 15 namespace internal { |
16 namespace compiler { | 16 namespace compiler { |
17 | 17 |
18 class ZoneStats final { | 18 class ZonePool final { |
19 public: | 19 public: |
20 class Scope final { | 20 class Scope final { |
21 public: | 21 public: |
22 explicit Scope(ZoneStats* zone_stats) | 22 explicit Scope(ZonePool* zone_pool) |
23 : zone_stats_(zone_stats), zone_(nullptr) {} | 23 : zone_pool_(zone_pool), zone_(nullptr) {} |
24 ~Scope() { Destroy(); } | 24 ~Scope() { Destroy(); } |
25 | 25 |
26 Zone* zone() { | 26 Zone* zone() { |
27 if (zone_ == nullptr) zone_ = zone_stats_->NewEmptyZone(); | 27 if (zone_ == nullptr) zone_ = zone_pool_->NewEmptyZone(); |
28 return zone_; | 28 return zone_; |
29 } | 29 } |
30 void Destroy() { | 30 void Destroy() { |
31 if (zone_ != nullptr) zone_stats_->ReturnZone(zone_); | 31 if (zone_ != nullptr) zone_pool_->ReturnZone(zone_); |
32 zone_ = nullptr; | 32 zone_ = nullptr; |
33 } | 33 } |
34 | 34 |
35 private: | 35 private: |
36 ZoneStats* const zone_stats_; | 36 ZonePool* const zone_pool_; |
37 Zone* zone_; | 37 Zone* zone_; |
38 DISALLOW_COPY_AND_ASSIGN(Scope); | 38 DISALLOW_COPY_AND_ASSIGN(Scope); |
39 }; | 39 }; |
40 | 40 |
41 class StatsScope final { | 41 class StatsScope final { |
42 public: | 42 public: |
43 explicit StatsScope(ZoneStats* zone_stats); | 43 explicit StatsScope(ZonePool* zone_pool); |
44 ~StatsScope(); | 44 ~StatsScope(); |
45 | 45 |
46 size_t GetMaxAllocatedBytes(); | 46 size_t GetMaxAllocatedBytes(); |
47 size_t GetCurrentAllocatedBytes(); | 47 size_t GetCurrentAllocatedBytes(); |
48 size_t GetTotalAllocatedBytes(); | 48 size_t GetTotalAllocatedBytes(); |
49 | 49 |
50 private: | 50 private: |
51 friend class ZoneStats; | 51 friend class ZonePool; |
52 void ZoneReturned(Zone* zone); | 52 void ZoneReturned(Zone* zone); |
53 | 53 |
54 typedef std::map<Zone*, size_t> InitialValues; | 54 typedef std::map<Zone*, size_t> InitialValues; |
55 | 55 |
56 ZoneStats* const zone_stats_; | 56 ZonePool* const zone_pool_; |
57 InitialValues initial_values_; | 57 InitialValues initial_values_; |
58 size_t total_allocated_bytes_at_start_; | 58 size_t total_allocated_bytes_at_start_; |
59 size_t max_allocated_bytes_; | 59 size_t max_allocated_bytes_; |
60 | 60 |
61 DISALLOW_COPY_AND_ASSIGN(StatsScope); | 61 DISALLOW_COPY_AND_ASSIGN(StatsScope); |
62 }; | 62 }; |
63 | 63 |
64 explicit ZoneStats(AccountingAllocator* allocator); | 64 explicit ZonePool(AccountingAllocator* allocator); |
65 ~ZoneStats(); | 65 ~ZonePool(); |
66 | 66 |
67 size_t GetMaxAllocatedBytes(); | 67 size_t GetMaxAllocatedBytes(); |
68 size_t GetTotalAllocatedBytes(); | 68 size_t GetTotalAllocatedBytes(); |
69 size_t GetCurrentAllocatedBytes(); | 69 size_t GetCurrentAllocatedBytes(); |
70 | 70 |
71 private: | 71 private: |
72 Zone* NewEmptyZone(); | 72 Zone* NewEmptyZone(); |
73 void ReturnZone(Zone* zone); | 73 void ReturnZone(Zone* zone); |
74 | 74 |
75 static const size_t kMaxUnusedSize = 3; | 75 static const size_t kMaxUnusedSize = 3; |
76 typedef std::vector<Zone*> Zones; | 76 typedef std::vector<Zone*> Unused; |
| 77 typedef std::vector<Zone*> Used; |
77 typedef std::vector<StatsScope*> Stats; | 78 typedef std::vector<StatsScope*> Stats; |
78 | 79 |
79 Zones zones_; | 80 Unused unused_; |
| 81 Used used_; |
80 Stats stats_; | 82 Stats stats_; |
81 size_t max_allocated_bytes_; | 83 size_t max_allocated_bytes_; |
82 size_t total_deleted_bytes_; | 84 size_t total_deleted_bytes_; |
83 AccountingAllocator* allocator_; | 85 AccountingAllocator* allocator_; |
84 | 86 |
85 DISALLOW_COPY_AND_ASSIGN(ZoneStats); | 87 DISALLOW_COPY_AND_ASSIGN(ZonePool); |
86 }; | 88 }; |
87 | 89 |
88 } // namespace compiler | 90 } // namespace compiler |
89 } // namespace internal | 91 } // namespace internal |
90 } // namespace v8 | 92 } // namespace v8 |
91 | 93 |
92 #endif // V8_COMPILER_ZONE_STATS_H_ | 94 #endif |
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