gold/dirsearch.h

   1 // dirsearch.h -- directory searching for gold  -*- C++ -*-
   2
   3 #ifndef GOLD_DIRSEARCH_H
   4 #define GOLD_DIRSEARCH_H
   5
   6 #include <string>
   7 #include <list>
   8
   9 #include "options.h"
  10 #include "workqueue.h"
  11
  12 namespace gold
  13 {
  14
  15 // A simple interface to manage directories to be searched for
  16 // libraries.
  17
  18 class Dirsearch
  19 {
  20  public:
  21   Dirsearch();
  22
  23   // Add a directory to the search path.
  24   void
  25   add(Workqueue*, const char*);
  26
  27   // Add a list of directories to the search path.
  28   void
  29   add(Workqueue*, const General_options::Dir_list&);
  30
  31   // Search for a file, giving one or two names to search for (the
  32   // second one may be empty).  Return a full path name for the file,
  33   // or the empty string if it could not be found.  This may only be
  34   // called if the token is not blocked.
  35   std::string
  36   find(const std::string&, const std::string& n2 = std::string()) const;
  37
  38   // Return a reference to the blocker token which controls access.
  39   const Task_token&
  40   token() const
  41   { return this->token_; }
  42
  43  private:
  44   // We can not copy this class.
  45   Dirsearch(const Dirsearch&);
  46   Dirsearch& operator=(const Dirsearch&);
  47
  48   // Directories to search.
  49   std::list<const char*> directories_;
  50   // Blocker token to control access from tasks.
  51   Task_token token_;
  52 };
  53
  54 } // End namespace gold.
  55
  56 #endif // !defined(GOLD_DIRSEARCH_H)