The Tor Browser / file comparison
comparison: toolkit/components/telemetry/ProcessedStack.h
toolkit/components/telemetry/ProcessedStack.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:467b09876c95 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef ProcessedStack_h__ | |
| 7 #define ProcessedStack_h__ | |
| 8 | |
| 9 #include <string> | |
| 10 #include <vector> | |
| 11 | |
| 12 namespace mozilla { | |
| 13 namespace Telemetry { | |
| 14 | |
| 15 // This class represents a stack trace and the modules referenced in that trace. | |
| 16 // It is designed to be easy to read and write to disk or network and doesn't | |
| 17 // include any logic on how to collect or read the information it stores. | |
| 18 class ProcessedStack | |
| 19 { | |
| 20 public: | |
| 21 ProcessedStack(); | |
| 22 size_t GetStackSize() const; | |
| 23 size_t GetNumModules() const; | |
| 24 | |
| 25 struct Frame | |
| 26 { | |
| 27 // The offset of this program counter in its module or an absolute pc. | |
| 28 uintptr_t mOffset; | |
| 29 // The index to pass to GetModule to get the module this program counter | |
| 30 // was in. | |
| 31 uint16_t mModIndex; | |
| 32 }; | |
| 33 struct Module | |
| 34 { | |
| 35 // The file name, /foo/bar/libxul.so for example. | |
| 36 std::string mName; | |
| 37 std::string mBreakpadId; | |
| 38 | |
| 39 bool operator==(const Module& other) const; | |
| 40 }; | |
| 41 | |
| 42 const Frame &GetFrame(unsigned aIndex) const; | |
| 43 void AddFrame(const Frame& aFrame); | |
| 44 const Module &GetModule(unsigned aIndex) const; | |
| 45 void AddModule(const Module& aFrame); | |
| 46 | |
| 47 void Clear(); | |
| 48 | |
| 49 private: | |
| 50 std::vector<Module> mModules; | |
| 51 std::vector<Frame> mStack; | |
| 52 }; | |
| 53 | |
| 54 // Get the current list of loaded modules, filter and pair it to the provided | |
| 55 // stack. We let the caller collect the stack since different callers have | |
| 56 // different needs (current thread X main thread, stopping the thread, etc). | |
| 57 ProcessedStack | |
| 58 GetStackAndModules(const std::vector<uintptr_t> &aPCs); | |
| 59 | |
| 60 } // namespace Telemetry | |
| 61 } // namespace mozilla | |
| 62 #endif // ProcessedStack_h__ |
