The Tor Browser / file comparison
comparison: tools/trace-malloc/adreader.h
tools/trace-malloc/adreader.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
equal
deleted
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| -1:000000000000 | 0:b7bc61181f15 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include <stdlib.h> | |
| 6 | |
| 7 #define ADLOG_ENTRY_BLOCK_SIZE 4096 | |
| 8 | |
| 9 class ADLog { | |
| 10 | |
| 11 public: | |
| 12 | |
| 13 // Use typedef in case somebody wants to process 64-bit output on a | |
| 14 // 32-bit machine someday. | |
| 15 typedef const char* Pointer; | |
| 16 | |
| 17 struct Entry { | |
| 18 Pointer address; | |
| 19 const char *type; | |
| 20 | |
| 21 const char *data; // The contents of the memory. | |
| 22 size_t datasize; | |
| 23 | |
| 24 const char *allocation_stack; | |
| 25 }; | |
| 26 | |
| 27 ADLog(); | |
| 28 ~ADLog(); | |
| 29 | |
| 30 /* | |
| 31 * Returns false on failure and true on success. | |
| 32 */ | |
| 33 bool Read(const char *aFilename); | |
| 34 | |
| 35 private: | |
| 36 // Link structure for a circularly linked list. | |
| 37 struct EntryBlock; | |
| 38 struct EntryBlockLink { | |
| 39 EntryBlock *mPrev; | |
| 40 EntryBlock *mNext; | |
| 41 }; | |
| 42 | |
| 43 struct EntryBlock : public EntryBlockLink { | |
| 44 Entry entries[ADLOG_ENTRY_BLOCK_SIZE]; | |
| 45 }; | |
| 46 | |
| 47 size_t mEntryCount; | |
| 48 EntryBlockLink mEntries; | |
| 49 | |
| 50 public: | |
| 51 | |
| 52 class const_iterator { | |
| 53 private: | |
| 54 // Only |ADLog| member functions can construct iterators. | |
| 55 friend class ADLog; | |
| 56 const_iterator(EntryBlock *aBlock, size_t aOffset); | |
| 57 | |
| 58 public: | |
| 59 const Entry* operator*() { return mCur; } | |
| 60 const Entry* operator->() { return mCur; } | |
| 61 | |
| 62 const_iterator& operator++(); | |
| 63 const_iterator& operator--(); | |
| 64 | |
| 65 bool operator==(const const_iterator& aOther) const { | |
| 66 return mCur == aOther.mCur; | |
| 67 } | |
| 68 | |
| 69 bool operator!=(const const_iterator& aOther) const { | |
| 70 return mCur != aOther.mCur; | |
| 71 } | |
| 72 | |
| 73 private: | |
| 74 void SetBlock(EntryBlock *aBlock) { | |
| 75 mBlock = aBlock; | |
| 76 mBlockStart = aBlock->entries; | |
| 77 mBlockEnd = aBlock->entries + ADLOG_ENTRY_BLOCK_SIZE; | |
| 78 } | |
| 79 | |
| 80 EntryBlock *mBlock; | |
| 81 Entry *mCur, *mBlockStart, *mBlockEnd; | |
| 82 | |
| 83 // Not to be implemented. | |
| 84 const_iterator operator++(int); | |
| 85 const_iterator operator--(int); | |
| 86 }; | |
| 87 | |
| 88 const_iterator begin() { | |
| 89 return const_iterator(mEntries.mNext, 0); | |
| 90 } | |
| 91 const_iterator end() { | |
| 92 return const_iterator(mEntries.mPrev, | |
| 93 mEntryCount % ADLOG_ENTRY_BLOCK_SIZE); | |
| 94 } | |
| 95 | |
| 96 size_t count() { return mEntryCount; } | |
| 97 }; |
