fdtracker.h

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/* Copyright (C) 2010,2018 Olly Betts
 *
 * 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 2 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 St, Fifth Floor, Boston, MA  02110-1301 USA
 */
 
#ifndef XAPIAN_INCLUDED_FDTRACKER_H
#define XAPIAN_INCLUDED_FDTRACKER_H
 
#include <string>
#include <vector>
 
// Disable fd tracking where it can't possibly work.
#ifndef __WIN32__
# define XAPIAN_TESTSUITE_TRACK_FDS
#endif
 
class FDTracker {
#ifdef XAPIAN_TESTSUITE_TRACK_FDS
    std::vector<bool> fds;
 
    void * dir_void;
 
    std::string message;
 
    void mark_fd(int fd);
 
    bool check_fd(int fd) const;
 
  public:
    FDTracker() : dir_void(NULL) { }
 
    ~FDTracker();
 
    void init();
 
    bool check();
 
    const std::string & get_message() const { return message; }
#else
  public:
    FDTracker() { }
 
    void init() { }
 
    bool check() { return true; }
 
    std::string get_message() const { return std::string(); }
#endif
 
    FDTracker(const FDTracker&) = delete;
 
    FDTracker& operator=(const FDTracker&) = delete;
};
 
#endif // XAPIAN_INCLUDED_FDTRACKER_H