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 "dcpomatic_log.h"
  26 #include <dcp/raw_convert.h>
  27 #include <nanomsg/nn.h>
  28 #include <unistd.h>
  29 #include <fcntl.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <iostream>
  34
  35 #include "i18n.h"
  36
  37 using std::string;
  38 using std::cout;
  39 using std::min;
  40 using boost::shared_ptr;
  41 using boost::optional;
  42 using dcp::raw_convert;
  43
  44 CopyToDriveJob::CopyToDriveJob (boost::filesystem::path dcp, Drive drive, Nanomsg& nanomsg)
  45         : Job (shared_ptr<Film>())
  46         , _dcp (dcp)
  47         , _drive (drive)
  48         , _nanomsg (nanomsg)
  49 {
  50
  51 }
  52
  53 string
  54 CopyToDriveJob::name () const
  55 {
  56         return String::compose (_("Copying %1\nto %2"), _dcp.filename().string(), _drive.description());
  57 }
  58
  59 string
  60 CopyToDriveJob::json_name () const
  61 {
  62         return N_("copy");
  63 }
  64
  65 void
  66 CopyToDriveJob::run ()
  67 {
  68         LOG_DISK("Sending write request to disk writer for %1 %2", _dcp.string(), _drive.device());
  69         if (!_nanomsg.send(String::compose(DISK_WRITER_WRITE "\n%1\n%2\n", _dcp.string(), _drive.device()), 2000)) {
  70                 throw CommunicationFailedError ();
  71         }
  72
  73         enum State {
  74                 SETUP,
  75                 FORMAT,
  76                 COPY,
  77                 VERIFY
  78         } state = SETUP;
  79
  80         while (true) {
  81                 optional<string> s = _nanomsg.receive (10000);
  82                 if (!s) {
  83                         continue;
  84                 }
  85                 if (*s == DISK_WRITER_OK) {
  86                         set_state (FINISHED_OK);
  87                         return;
  88                 } else if (*s == DISK_WRITER_ERROR) {
  89                         optional<string> const m = _nanomsg.receive (500);
  90                         optional<string> const n = _nanomsg.receive (500);
  91                         throw CopyError (m.get_value_or("Unknown"), raw_convert<int>(n.get_value_or("0")));
  92                 } else if (*s == DISK_WRITER_FORMATTING) {
  93                         sub (_("Formatting drive"));
  94                         set_progress_unknown ();
  95                         state = FORMAT;
  96                 } else if (*s == DISK_WRITER_COPY_PROGRESS) {
  97                         if (state == FORMAT) {
  98                                 sub (_("Copying DCP"));
  99                                 state = COPY;
 100                         }
 101                         optional<string> progress = _nanomsg.receive (500);
 102                         if (progress) {
 103                                 set_progress (raw_convert<float>(*progress));
 104                         }
 105                 } else if (*s == DISK_WRITER_VERIFY_PROGRESS) {
 106                         if (state == COPY) {
 107                                 sub (_("Verifying copied files"));
 108                                 state = VERIFY;
 109                         }
 110                         optional<string> progress = _nanomsg.receive (500);
 111                         if (progress) {
 112                                 set_progress (raw_convert<float>(*progress));
 113                         }
 114                 }
 115         }
 116 }