mozglue/baseprofiler/lul/LulCommon.cpp

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