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d01e823438
This updates the copyright headers to include 2025. I did this by running gdb/copyright.py and then manually modifying a few files as noted by the script. Approved-By: Eli Zaretskii <eliz@gnu.org>
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/* Filename-seen cache for the GNU debugger, GDB.
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Copyright (C) 1986-2025 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDB_FILENAME_SEEN_CACHE_H
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#define GDB_FILENAME_SEEN_CACHE_H
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#include "gdbsupport/unordered_set.h"
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#include "filenames.h"
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/* Cache to watch for file names already seen. */
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class filename_seen_cache
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{
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public:
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filename_seen_cache () = default;
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DISABLE_COPY_AND_ASSIGN (filename_seen_cache);
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/* Empty the cache. */
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void clear ()
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{ m_tab.clear (); }
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/* If FILE is not already in the table of files of the cache, add it and
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return false; otherwise return true.
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NOTE: We don't manage space for FILE, we assume FILE lives as
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long as the caller needs. */
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bool seen (const char *file)
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{ return !m_tab.insert (file).second; }
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private:
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struct hash
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{
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std::size_t operator() (const char *s) const noexcept
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{ return filename_hash (s); }
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};
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struct eq
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{
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bool operator() (const char *lhs, const char *rhs) const noexcept
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{ return filename_eq (lhs, rhs); }
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};
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/* Table of files seen so far. */
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gdb::unordered_set<const char *, hash, eq> m_tab;
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};
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#endif /* GDB_FILENAME_SEEN_CACHE_H */
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