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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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31 #include "zone-inl.h" | 31 #include "zone-inl.h" |
32 | 32 |
33 namespace v8 { | 33 namespace v8 { |
34 namespace internal { | 34 namespace internal { |
35 | 35 |
36 #ifdef ENABLE_LOGGING_AND_PROFILING | 36 #ifdef ENABLE_LOGGING_AND_PROFILING |
37 | 37 |
38 class HeapSnapshot; | 38 class HeapSnapshot; |
39 class HeapSnapshotsCollection; | 39 class HeapSnapshotsCollection; |
40 | 40 |
| 41 #endif |
| 42 |
41 // The HeapProfiler writes data to the log files, which can be postprocessed | 43 // The HeapProfiler writes data to the log files, which can be postprocessed |
42 // to generate .hp files for use by the GHC/Valgrind tool hp2ps. | 44 // to generate .hp files for use by the GHC/Valgrind tool hp2ps. |
43 class HeapProfiler { | 45 class HeapProfiler { |
44 public: | 46 public: |
45 static void Setup(); | 47 static void Setup(); |
46 static void TearDown(); | 48 static void TearDown(); |
| 49 |
| 50 #ifdef ENABLE_LOGGING_AND_PROFILING |
47 static HeapSnapshot* TakeSnapshot(const char* name); | 51 static HeapSnapshot* TakeSnapshot(const char* name); |
48 static HeapSnapshot* TakeSnapshot(String* name); | 52 static HeapSnapshot* TakeSnapshot(String* name); |
49 static int GetSnapshotsCount(); | 53 static int GetSnapshotsCount(); |
50 static HeapSnapshot* GetSnapshot(int index); | 54 static HeapSnapshot* GetSnapshot(int index); |
51 static HeapSnapshot* FindSnapshot(unsigned uid); | 55 static HeapSnapshot* FindSnapshot(unsigned uid); |
52 | 56 |
53 // Obsolete interface. | 57 // Obsolete interface. |
54 // Write a single heap sample to the log file. | 58 // Write a single heap sample to the log file. |
55 static void WriteSample(); | 59 static void WriteSample(); |
56 | 60 |
57 private: | 61 private: |
58 HeapProfiler(); | 62 HeapProfiler(); |
59 ~HeapProfiler(); | 63 ~HeapProfiler(); |
60 HeapSnapshot* TakeSnapshotImpl(const char* name); | 64 HeapSnapshot* TakeSnapshotImpl(const char* name); |
61 HeapSnapshot* TakeSnapshotImpl(String* name); | 65 HeapSnapshot* TakeSnapshotImpl(String* name); |
62 | 66 |
63 // Obsolete interface. | 67 // Obsolete interface. |
64 // Update the array info with stats from obj. | 68 // Update the array info with stats from obj. |
65 static void CollectStats(HeapObject* obj, HistogramInfo* info); | 69 static void CollectStats(HeapObject* obj, HistogramInfo* info); |
66 | 70 |
67 HeapSnapshotsCollection* snapshots_; | 71 HeapSnapshotsCollection* snapshots_; |
68 unsigned next_snapshot_uid_; | 72 unsigned next_snapshot_uid_; |
69 | 73 |
70 static HeapProfiler* singleton_; | 74 static HeapProfiler* singleton_; |
| 75 #endif // ENABLE_LOGGING_AND_PROFILING |
71 }; | 76 }; |
72 | 77 |
73 | 78 |
| 79 #ifdef ENABLE_LOGGING_AND_PROFILING |
| 80 |
74 // JSObjectsCluster describes a group of JS objects that are | 81 // JSObjectsCluster describes a group of JS objects that are |
75 // considered equivalent in terms of a particular profile. | 82 // considered equivalent in terms of a particular profile. |
76 class JSObjectsCluster BASE_EMBEDDED { | 83 class JSObjectsCluster BASE_EMBEDDED { |
77 public: | 84 public: |
78 // These special cases are used in retainer profile. | 85 // These special cases are used in retainer profile. |
79 enum SpecialCase { | 86 enum SpecialCase { |
80 ROOTS = 1, | 87 ROOTS = 1, |
81 GLOBAL_PROPERTY = 2, | 88 GLOBAL_PROPERTY = 2, |
82 CODE = 3, | 89 CODE = 3, |
83 SELF = 100 // This case is used in ClustersCoarser only. | 90 SELF = 100 // This case is used in ClustersCoarser only. |
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293 private: | 300 private: |
294 static void DoRecordJSObjectAllocation(Object* obj); | 301 static void DoRecordJSObjectAllocation(Object* obj); |
295 static bool can_log_; | 302 static bool can_log_; |
296 }; | 303 }; |
297 | 304 |
298 #endif // ENABLE_LOGGING_AND_PROFILING | 305 #endif // ENABLE_LOGGING_AND_PROFILING |
299 | 306 |
300 } } // namespace v8::internal | 307 } } // namespace v8::internal |
301 | 308 |
302 #endif // V8_HEAP_PROFILER_H_ | 309 #endif // V8_HEAP_PROFILER_H_ |
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