| // dirsearch.h -- directory searching for gold -*- C++ -*- |
| |
| // Copyright (C) 2006-2021 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) |