michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=8 sts=2 et sw=2 tw=80: */
michael@0: 
michael@0: // Copyright (c) 2011, 2013 Google Inc.
michael@0: // All rights reserved.
michael@0: //
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: // notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: // copyright notice, this list of conditions and the following disclaimer
michael@0: // in the documentation and/or other materials provided with the
michael@0: // distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: // contributors may be used to endorse or promote products derived from
michael@0: // this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: // Original author: Jim Blandy <jimb@mozilla.com> <jimb@red-bean.com>
michael@0: 
michael@0: 
michael@0: // This file is derived from the following files in
michael@0: // toolkit/crashreporter/google-breakpad:
michael@0: //   src/common/module.cc
michael@0: //   src/common/unique_string.cc
michael@0: 
michael@0: // There's no internal-only interface for LulCommon.  Hence include
michael@0: // the external interface directly.
michael@0: #include "LulCommonExt.h"
michael@0: 
michael@0: #include <stdlib.h>
michael@0: #include <string.h>
michael@0: 
michael@0: #include <string>
michael@0: #include <map>
michael@0: 
michael@0: 
michael@0: namespace lul {
michael@0: 
michael@0: using std::string;
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////
michael@0: // Module
michael@0: //
michael@0: Module::Module(const string &name, const string &os,
michael@0:                const string &architecture, const string &id) :
michael@0:     name_(name),
michael@0:     os_(os),
michael@0:     architecture_(architecture),
michael@0:     id_(id) { }
michael@0: 
michael@0: Module::~Module() {
michael@0: }
michael@0: 
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////
michael@0: // UniqueString
michael@0: //
michael@0: class UniqueString {
michael@0:  public:
michael@0:   UniqueString(string str) { str_ = strdup(str.c_str()); }
michael@0:   ~UniqueString() { free(reinterpret_cast<void*>(const_cast<char*>(str_))); }
michael@0:   const char* str_;
michael@0: };
michael@0: 
michael@0: class UniqueStringUniverse {
michael@0: public:
michael@0:   UniqueStringUniverse() {};
michael@0:   const UniqueString* FindOrCopy(string str) {
michael@0:     std::map<string, UniqueString*>::iterator it = map_.find(str);
michael@0:     if (it == map_.end()) {
michael@0:       UniqueString* ustr = new UniqueString(str);
michael@0:       map_[str] = ustr;
michael@0:       return ustr;
michael@0:     } else {
michael@0:       return it->second;
michael@0:     }
michael@0:   }
michael@0: private:
michael@0:   std::map<string, UniqueString*> map_;
michael@0: };
michael@0: 
michael@0: 
michael@0: const UniqueString* ToUniqueString(string str) {
michael@0:   // For the initialisation of sUniverse to be threadsafe,
michael@0:   // this relies on C++11's semantics.
michael@0:   static UniqueStringUniverse sUniverse;
michael@0:   return sUniverse.FindOrCopy(str);
michael@0: }
michael@0: 
michael@0: const char* const FromUniqueString(const UniqueString* ustr)
michael@0: {
michael@0:   return ustr->str_;
michael@0: }
michael@0: 
michael@0: }  // namespace lul