src/lib/copy_to_drive_job.cc

   1 /*
   2     Copyright (C) 2019-2020 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "disk_writer_messages.h"
  22 #include "copy_to_drive_job.h"
  23 #include "compose.hpp"
  24 #include "exceptions.h"
  25 #include <dcp/raw_convert.h>
  26 #include <nanomsg/nn.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <iostream>
  33
  34 #include "i18n.h"
  35
  36 using std::string;
  37 using std::cout;
  38 using std::min;
  39 using boost::shared_ptr;
  40 using boost::optional;
  41 using dcp::raw_convert;
  42
  43 CopyToDriveJob::CopyToDriveJob (boost::filesystem::path dcp, Drive drive, Nanomsg& nanomsg)
  44         : Job (shared_ptr<Film>())
  45         , _dcp (dcp)
  46         , _drive (drive)
  47         , _nanomsg (nanomsg)
  48 {
  49
  50 }
  51
  52 string
  53 CopyToDriveJob::name () const
  54 {
  55         return String::compose (_("Copying %1 to %2"), _dcp.filename().string(), _drive.description());
  56 }
  57
  58 string
  59 CopyToDriveJob::json_name () const
  60 {
  61         return N_("copy");
  62 }
  63
  64 void
  65 CopyToDriveJob::run ()
  66 {
  67         if (!_nanomsg.send(String::compose(DISK_WRITER_WRITE "\n%1\n%2\n", _dcp.string(), _drive.device()), 2000)) {
  68                 throw CommunicationFailedError ();
  69         }
  70
  71         bool formatting = false;
  72         while (true) {
  73                 optional<string> s = _nanomsg.receive (10000);
  74                 if (!s) {
  75                         continue;
  76                 }
  77                 if (*s == DISK_WRITER_OK) {
  78                         set_state (FINISHED_OK);
  79                         return;
  80                 } else if (*s == DISK_WRITER_ERROR) {
  81                         optional<string> const m = _nanomsg.receive (500);
  82                         optional<string> const n = _nanomsg.receive (500);
  83                         throw CopyError (m.get_value_or("Unknown"), raw_convert<int>(n.get_value_or("0")));
  84                 } else if (*s == DISK_WRITER_FORMATTING) {
  85                         sub ("Formatting drive");
  86                         set_progress_unknown ();
  87                         formatting = true;
  88                 } else if (*s == DISK_WRITER_PROGRESS) {
  89                         if (formatting) {
  90                                 sub ("Copying DCP");
  91                                 formatting = false;
  92                         }
  93                         optional<string> progress = _nanomsg.receive (500);
  94                         if (progress) {
  95                                 set_progress (raw_convert<float>(*progress));
  96                         }
  97                 }
  98         }
  99 }