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
  22 #include "compose.hpp"
  23 #include "copy_to_drive_job.h"
  24 #include "dcpomatic_log.h"
  25 #include "disk_writer_messages.h"
  26 #include "exceptions.h"
  27 #include <dcp/raw_convert.h>
  28 #include <nanomsg/nn.h>
  29 #include <fcntl.h>
  30 #include <unistd.h>
  31 #include <iostream>
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35
  36 #include "i18n.h"
  37
  38
  39 using std::cout;
  40 using std::min;
  41 using std::shared_ptr;
  42 using std::string;
  43 using boost::optional;
  44 using dcp::raw_convert;
  45
  46
  47 CopyToDriveJob::CopyToDriveJob(std::vector<boost::filesystem::path> const& dcps, Drive drive, Nanomsg& nanomsg)
  48         : Job (shared_ptr<Film>())
  49         , _dcps (dcps)
  50         , _drive (drive)
  51         , _nanomsg (nanomsg)
  52 {
  53
  54 }
  55
  56
  57 string
  58 CopyToDriveJob::name () const
  59 {
  60         if (_dcps.size() == 1) {
  61                 return String::compose(_("Copying %1\nto %2"), _dcps[0].filename().string(), _drive.description());
  62         }
  63
  64         return String::compose(_("Copying DCPs to %1"), _drive.description());
  65 }
  66
  67
  68 string
  69 CopyToDriveJob::json_name () const
  70 {
  71         return N_("copy");
  72 }
  73
  74 void
  75 CopyToDriveJob::run ()
  76 {
  77         LOG_DISK("Sending write requests to disk %1 for:", _drive.device());
  78         for (auto dcp: _dcps) {
  79                 LOG_DISK("%1", dcp.string());
  80         }
  81
  82         string request = String::compose(DISK_WRITER_WRITE "\n%1\n", _drive.device());
  83         for (auto dcp: _dcps) {
  84                 request += String::compose("%1\n", dcp.string());
  85         }
  86         request += "\n";
  87         if (!_nanomsg.send(request, 2000)) {
  88                 LOG_DISK_NC("Failed to send write request.");
  89                 throw CommunicationFailedError ();
  90         }
  91
  92         enum State {
  93                 SETUP,
  94                 FORMAT,
  95                 COPY,
  96                 VERIFY
  97         } state = SETUP;
  98
  99         while (true) {
 100                 auto response = DiskWriterBackEndResponse::read_from_nanomsg(_nanomsg, 10000);
 101                 if (!response) {
 102                         continue;
 103                 }
 104
 105                 switch (response->type()) {
 106                 case DiskWriterBackEndResponse::Type::OK:
 107                         set_state (FINISHED_OK);
 108                         return;
 109                 case DiskWriterBackEndResponse::Type::PONG:
 110                         break;
 111                 case DiskWriterBackEndResponse::Type::ERROR:
 112                         throw CopyError(response->error_message(), response->ext4_error_number(), response->platform_error_number());
 113                 case DiskWriterBackEndResponse::Type::FORMAT_PROGRESS:
 114                         if (state == SETUP) {
 115                                 sub (_("Formatting drive"));
 116                                 state = FORMAT;
 117                         }
 118                         set_progress(response->progress());
 119                         break;
 120                 case DiskWriterBackEndResponse::Type::COPY_PROGRESS:
 121                         if (state == FORMAT) {
 122                                 sub (_("Copying DCP"));
 123                                 state = COPY;
 124                         }
 125                         set_progress(response->progress());
 126                         break;
 127                 case DiskWriterBackEndResponse::Type::VERIFY_PROGRESS:
 128                         if (state == COPY) {
 129                                 sub (_("Verifying copied files"));
 130                                 state = VERIFY;
 131                         }
 132                         set_progress(response->progress());
 133                         break;
 134                 }
 135         }
 136 }