// dirsearch.h -- directory searching for gold -*- C++ -*- // Copyright (C) 2006-2015 Free Software Foundation, Inc. // Written by Ian Lance Taylor <iant@google.com>. // This file is part of gold. // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, // MA 02110-1301, USA. #ifndef GOLD_DIRSEARCH_H #define GOLD_DIRSEARCH_H #include <string> #include <list> #include "options.h" #include "token.h" namespace gold { class General_options; class Workqueue; // A simple interface to manage directories to be searched for // libraries. class Dirsearch { public: Dirsearch() : directories_(NULL), token_(true) { } // Set the list of directories to search. void initialize(Workqueue*, const General_options::Dir_list*); // Search for a file, giving one or two names to search for (the // second one may be empty). Return a full path name for the file, // or the empty string if it could not be found. This may only be // called if the token is not blocked. Set *IS_IN_SYSROOT if the // file was found in a directory which is in the sysroot. *PINDEX // should be set to zero the first time this is called; it will be // updated with the index of the directory where the file is found, // and that value plus one may be used to find the next file with // the same name(s). std::string find(const std::vector<std::string>& names, bool* is_in_sysroot, int* pindex, std::string *found_name) const; // Return the blocker token which controls access. Task_token* token() { return &this->token_; } // Search for a file in a directory list. This is a low-level function and // therefore can be used before options and parameters are set. static std::string find_file_in_dir_list(const std::string& name, const General_options::Dir_list& directories, const std::string& extra_search_dir); private: // We can not copy this class. Dirsearch(const Dirsearch&); Dirsearch& operator=(const Dirsearch&); // Directories to search. const General_options::Dir_list* directories_; // Blocker token to control access from tasks. Task_token token_; }; } // End namespace gold. #endif // !defined(GOLD_DIRSEARCH_H)