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bae7f79e ILT |
1 | // dirsearch.h -- directory searching for gold -*- C++ -*- |
2 | ||
6cb15b7f ILT |
3 | // Copyright 2006, 2007 Free Software Foundation, Inc. |
4 | // Written by Ian Lance Taylor <iant@google.com>. | |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
bae7f79e ILT |
23 | #ifndef GOLD_DIRSEARCH_H |
24 | #define GOLD_DIRSEARCH_H | |
25 | ||
26 | #include <string> | |
27 | #include <list> | |
28 | ||
bae7f79e ILT |
29 | #include "workqueue.h" |
30 | ||
31 | namespace gold | |
32 | { | |
33 | ||
ead1e424 ILT |
34 | class General_options; |
35 | ||
bae7f79e ILT |
36 | // A simple interface to manage directories to be searched for |
37 | // libraries. | |
38 | ||
39 | class Dirsearch | |
40 | { | |
41 | public: | |
42 | Dirsearch(); | |
43 | ||
44 | // Add a directory to the search path. | |
45 | void | |
46 | add(Workqueue*, const char*); | |
47 | ||
48 | // Add a list of directories to the search path. | |
49 | void | |
50 | add(Workqueue*, const General_options::Dir_list&); | |
51 | ||
52 | // Search for a file, giving one or two names to search for (the | |
53 | // second one may be empty). Return a full path name for the file, | |
54 | // or the empty string if it could not be found. This may only be | |
55 | // called if the token is not blocked. | |
56 | std::string | |
57 | find(const std::string&, const std::string& n2 = std::string()) const; | |
58 | ||
59 | // Return a reference to the blocker token which controls access. | |
60 | const Task_token& | |
61 | token() const | |
62 | { return this->token_; } | |
63 | ||
64 | private: | |
65 | // We can not copy this class. | |
66 | Dirsearch(const Dirsearch&); | |
67 | Dirsearch& operator=(const Dirsearch&); | |
68 | ||
69 | // Directories to search. | |
70 | std::list<const char*> directories_; | |
71 | // Blocker token to control access from tasks. | |
72 | Task_token token_; | |
73 | }; | |
74 | ||
75 | } // End namespace gold. | |
76 | ||
77 | #endif // !defined(GOLD_DIRSEARCH_H) |