tools/profiler/LulCommon.cpp@97036ab72558 (annotated)
tools/profiler/LulCommon.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | |
| michael@0 | 4 | // Copyright (c) 2011, 2013 Google Inc. |
| michael@0 | 5 | // All rights reserved. |
| michael@0 | 6 | // |
| michael@0 | 7 | // Redistribution and use in source and binary forms, with or without |
| michael@0 | 8 | // modification, are permitted provided that the following conditions are |
| michael@0 | 9 | // met: |
| michael@0 | 10 | // |
| michael@0 | 11 | // * Redistributions of source code must retain the above copyright |
| michael@0 | 12 | // notice, this list of conditions and the following disclaimer. |
| michael@0 | 13 | // * Redistributions in binary form must reproduce the above |
| michael@0 | 14 | // copyright notice, this list of conditions and the following disclaimer |
| michael@0 | 15 | // in the documentation and/or other materials provided with the |
| michael@0 | 16 | // distribution. |
| michael@0 | 17 | // * Neither the name of Google Inc. nor the names of its |
| michael@0 | 18 | // contributors may be used to endorse or promote products derived from |
| michael@0 | 19 | // this software without specific prior written permission. |
| michael@0 | 20 | // |
| michael@0 | 21 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| michael@0 | 22 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| michael@0 | 23 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| michael@0 | 24 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| michael@0 | 25 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| michael@0 | 26 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| michael@0 | 27 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| michael@0 | 28 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| michael@0 | 29 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 30 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| michael@0 | 31 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 32 | |
| michael@0 | 33 | // Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com> |
| michael@0 | 34 | |
| michael@0 | 35 | |
| michael@0 | 36 | // This file is derived from the following files in |
| michael@0 | 37 | // toolkit/crashreporter/google-breakpad: |
| michael@0 | 38 | // src/common/module.cc |
| michael@0 | 39 | // src/common/unique_string.cc |
| michael@0 | 40 | |
| michael@0 | 41 | // There's no internal-only interface for LulCommon. Hence include |
| michael@0 | 42 | // the external interface directly. |
| michael@0 | 43 | #include "LulCommonExt.h" |
| michael@0 | 44 | |
| michael@0 | 45 | #include <stdlib.h> |
| michael@0 | 46 | #include <string.h> |
| michael@0 | 47 | |
| michael@0 | 48 | #include <string> |
| michael@0 | 49 | #include <map> |
| michael@0 | 50 | |
| michael@0 | 51 | |
| michael@0 | 52 | namespace lul { |
| michael@0 | 53 | |
| michael@0 | 54 | using std::string; |
| michael@0 | 55 | |
| michael@0 | 56 | //////////////////////////////////////////////////////////////// |
| michael@0 | 57 | // Module |
| michael@0 | 58 | // |
| michael@0 | 59 | Module::Module(const string &name, const string &os, |
| michael@0 | 60 | const string &architecture, const string &id) : |
| michael@0 | 61 | name_(name), |
| michael@0 | 62 | os_(os), |
| michael@0 | 63 | architecture_(architecture), |
| michael@0 | 64 | id_(id) { } |
| michael@0 | 65 | |
| michael@0 | 66 | Module::~Module() { |
| michael@0 | 67 | } |
| michael@0 | 68 | |
| michael@0 | 69 | |
| michael@0 | 70 | //////////////////////////////////////////////////////////////// |
| michael@0 | 71 | // UniqueString |
| michael@0 | 72 | // |
| michael@0 | 73 | class UniqueString { |
| michael@0 | 74 | public: |
| michael@0 | 75 | UniqueString(string str) { str_ = strdup(str.c_str()); } |
| michael@0 | 76 | ~UniqueString() { free(reinterpret_cast<void*>(const_cast<char*>(str_))); } |
| michael@0 | 77 | const char* str_; |
| michael@0 | 78 | }; |
| michael@0 | 79 | |
| michael@0 | 80 | class UniqueStringUniverse { |
| michael@0 | 81 | public: |
| michael@0 | 82 | UniqueStringUniverse() {}; |
| michael@0 | 83 | const UniqueString* FindOrCopy(string str) { |
| michael@0 | 84 | std::map<string, UniqueString*>::iterator it = map_.find(str); |
| michael@0 | 85 | if (it == map_.end()) { |
| michael@0 | 86 | UniqueString* ustr = new UniqueString(str); |
| michael@0 | 87 | map_[str] = ustr; |
| michael@0 | 88 | return ustr; |
| michael@0 | 89 | } else { |
| michael@0 | 90 | return it->second; |
| michael@0 | 91 | } |
| michael@0 | 92 | } |
| michael@0 | 93 | private: |
| michael@0 | 94 | std::map<string, UniqueString*> map_; |
| michael@0 | 95 | }; |
| michael@0 | 96 | |
| michael@0 | 97 | |
| michael@0 | 98 | const UniqueString* ToUniqueString(string str) { |
| michael@0 | 99 | // For the initialisation of sUniverse to be threadsafe, |
| michael@0 | 100 | // this relies on C++11's semantics. |
| michael@0 | 101 | static UniqueStringUniverse sUniverse; |
| michael@0 | 102 | return sUniverse.FindOrCopy(str); |
| michael@0 | 103 | } |
| michael@0 | 104 | |
| michael@0 | 105 | const char* const FromUniqueString(const UniqueString* ustr) |
| michael@0 | 106 | { |
| michael@0 | 107 | return ustr->str_; |
| michael@0 | 108 | } |
| michael@0 | 109 | |
| michael@0 | 110 | } // namespace lul |
