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Member "fstransform-0.9.4/fsmove/src/move.hh" (31 Mar 2019, 3471 Bytes) of package /linux/misc/fstransform-0.9.4.tar.gz:

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    1 /*
    2  * fstransform - transform a file-system to another file-system type,
    3  *               preserving its contents and without the need for a backup
    4  *
    5  * Copyright (C) 2011-2012 Massimiliano Ghilardi
    6  *
    7  *     This program is free software: you can redistribute it and/or modify
    8  *     it under the terms of the GNU General Public License as published by
    9  *     the Free Software Foundation, either version 3 of the License, or
   10  *     (at your option) any later version.
   11  *
   12  *     This program is distributed in the hope that it will be useful,
   13  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
   14  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15  *     GNU General Public License for more details.
   16  *
   17  *     You should have received a copy of the GNU General Public License
   18  *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
   19  *
   20  * move.hh
   21  *
   22  *  Created on: Aug 18, 2011
   23  *      Author: max
   24  */
   25 
   26 #ifndef FSMOVE_MOVE_HH
   27 #define FSMOVE_MOVE_HH
   28 
   29 #include "args.hh"        // for fm_args
   30 #include "fwd.hh"         // for fm_io forward declaration
   31 #include "log.hh"         // for FC_TRACE
   32 
   33 
   34 FT_NAMESPACE_BEGIN
   35 
   36 /**
   37  * class doing the core of recursive move work.
   38  */
   39 class fm_move
   40 {
   41 private:
   42     FT_IO_NS fm_io * this_io;
   43 
   44     /** true if usage() or version() was called. */
   45     bool quit_immediately;
   46 
   47     /** cannot call copy constructor */
   48     fm_move(const fm_move &);
   49 
   50     /** cannot call assignment operator */
   51     const fm_move & operator=(const fm_move &);
   52 
   53     /** display command-line usage to stdout and return 0 */
   54     int usage(const char * program_name);
   55 
   56     /** output version information and return 0 */
   57     int version();
   58 
   59     static int invalid_cmdline(const char * program_name, int err, const char * fmt, ...);
   60 
   61     /** return EISCONN if remapper is initialized, else call quit_io() and return 0 */
   62     int check_is_closed();
   63 
   64     /** return 0 if remapper is initialized, else call quit_io() and return ENOTCONN */
   65     int check_is_open();
   66 
   67     /**
   68      * checks that I/O is open.
   69      * if success, stores a reference to I/O object.
   70      */
   71     int init(FT_IO_NS fm_io & io);
   72 
   73     /** core of recursive move algorithm, actually moves the whole source tree into target */
   74     int move();
   75 
   76     /** show progress status and E.T.A. */
   77     void show_progress();
   78 
   79 public:
   80     /** default constructor */
   81     fm_move();
   82 
   83     /** destructor. calls quit() */
   84     ~fm_move();
   85 
   86     /**
   87      * high-level do-everything method. calls in sequence init(), run() and cleanup().
   88      * return 0 if success, else error.
   89      */
   90     static int main(int argc, char ** argv);
   91 
   92     bool is_initialized() const;
   93 
   94     /**
   95      * parse command line and initialize all subsystems (job, I/O, log...)
   96      * return 0 if success, else error.
   97      *
   98      * implementation: parse command line, fill a fr_args and call init(const fr_args &)
   99      */
  100     int init(int argc, char const* const* argv);
  101 
  102     /**
  103      * initialize all subsystems (job, I/O, log...) using specified arguments
  104      * return 0 if success, else error.
  105      */
  106     int init(const fm_args & args);
  107 
  108     /**
  109      * main recursive move algorithm.
  110      * calls in sequence analyze() and move()
  111      */
  112     int run();
  113 
  114     /**
  115      * performs cleanup. called by destructor, you can also call it explicitly after (or instead of) run().
  116      * closes configured I/O and delete it
  117      */
  118     void quit();
  119 };
  120 
  121 
  122 FT_NAMESPACE_END
  123 
  124 
  125 #endif /* FSMOVE_MOVE_HH */