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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [gold/] [dirsearch.h] - Rev 407

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// dirsearch.h -- directory searching for gold  -*- C++ -*-
 
// Copyright 2006, 2007, 2008 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::string&, const std::string& n2, bool *is_in_sysroot,
       int* pindex) const;
 
  // Return the blocker token which controls access.
  Task_token*
  token()
  { return &this->token_; }
 
 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)
 

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