2 Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
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.
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.
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/>.
22 * @brief A parent class to represent long-running tasks which are run in their own thread.
28 #include "exceptions.h"
31 #include "compose.hpp"
32 #include <dcp/exceptions.h>
33 #include <sub/exceptions.h>
34 #include <boost/thread.hpp>
35 #include <boost/filesystem.hpp>
36 #include <boost/foreach.hpp>
37 #include <boost/date_time/posix_time/posix_time.hpp>
45 using boost::shared_ptr;
46 using boost::optional;
47 using boost::function;
49 #define LOG_ERROR_NC(...) if (_film) { _film->log()->log (__VA_ARGS__, LogEntry::TYPE_ERROR); }
50 #define LOG_GENERAL(...) if (_film) { _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL); }
52 /** @param film Associated film, or 0 */
53 Job::Job (shared_ptr<const Film> film)
68 _thread->interrupt ();
69 /* We can't use DCPOMATIC_ASSERT here as it may throw an exception */
70 if (_thread->joinable ()) {
74 /* Too late to do anything about this */
82 /** Start the job in a separate thread, returning immediately */
87 _start_time = time (0);
88 _sub_start_time = time (0);
89 _thread = new boost::thread (boost::bind (&Job::run_wrapper, this));
90 #ifdef DCPOMATIC_LINUX
91 pthread_setname_np (_thread->native_handle(), "job-wrapper");
95 /** A wrapper for the ::run() method to catch exceptions */
103 } catch (dcp::FileError& e) {
105 string m = String::compose (_("An error occurred whilst handling the file %1."), boost::filesystem::path (e.filename()).leaf());
108 boost::filesystem::space_info const s = boost::filesystem::space (e.filename());
109 if (s.available < pow (1024, 3)) {
111 m += _("The drive that the film is stored on is low in disc space. Free some more space and try again.");
117 set_error (e.what(), m);
119 set_state (FINISHED_ERROR);
121 } catch (OpenFileError& e) {
124 String::compose (_("Could not open %1"), e.file().string()),
126 _("DCP-o-matic could not open the file %1 (%2). Perhaps it does not exist or is in an unexpected format."),
127 boost::filesystem::absolute (e.file()).string(),
133 set_state (FINISHED_ERROR);
135 } catch (boost::filesystem::filesystem_error& e) {
137 if (e.code() == boost::system::errc::no_such_file_or_directory) {
139 String::compose (_("Could not open %1"), e.path1().string ()),
141 _("DCP-o-matic could not open the file %1 (%2). Perhaps it does not exist or is in an unexpected format."),
142 boost::filesystem::absolute (e.path1()).string(),
149 string (_("It is not known what caused this error.")) + " " + REPORT_PROBLEM
154 set_state (FINISHED_ERROR);
156 } catch (boost::thread_interrupted &) {
158 set_state (FINISHED_CANCELLED);
160 } catch (sub::SubripError& e) {
162 string extra = "Error is near:\n";
163 BOOST_FOREACH (string i, e.context()) {
167 set_error (e.what (), extra);
169 set_state (FINISHED_ERROR);
171 } catch (std::bad_alloc& e) {
173 set_error (_("Out of memory"), _("There was not enough memory to do this. If you are running a 32-bit operating system try reducing the number of encoding threads in the General tab of Preferences."));
175 set_state (FINISHED_ERROR);
177 } catch (std::exception& e) {
181 string (_("It is not known what caused this error.")) + " " + REPORT_PROBLEM
185 set_state (FINISHED_ERROR);
191 string (_("It is not known what caused this error.")) + " " + REPORT_PROBLEM
195 set_state (FINISHED_ERROR);
199 /** @return true if this job is new (ie has not started running) */
203 boost::mutex::scoped_lock lm (_state_mutex);
204 return _state == NEW;
207 /** @return true if the job is running */
209 Job::running () const
211 boost::mutex::scoped_lock lm (_state_mutex);
212 return _state == RUNNING;
215 /** @return true if the job has finished (either successfully or unsuccessfully) */
217 Job::finished () const
219 boost::mutex::scoped_lock lm (_state_mutex);
220 return _state == FINISHED_OK || _state == FINISHED_ERROR || _state == FINISHED_CANCELLED;
223 /** @return true if the job has finished successfully */
225 Job::finished_ok () const
227 boost::mutex::scoped_lock lm (_state_mutex);
228 return _state == FINISHED_OK;
231 /** @return true if the job has finished unsuccessfully */
233 Job::finished_in_error () const
235 boost::mutex::scoped_lock lm (_state_mutex);
236 return _state == FINISHED_ERROR;
240 Job::finished_cancelled () const
242 boost::mutex::scoped_lock lm (_state_mutex);
243 return _state == FINISHED_CANCELLED;
247 Job::paused_by_user () const
249 boost::mutex::scoped_lock lm (_state_mutex);
250 return _state == PAUSED_BY_USER;
254 Job::paused_by_priority () const
256 boost::mutex::scoped_lock lm (_state_mutex);
257 return _state == PAUSED_BY_PRIORITY;
260 /** Set the state of this job.
261 * @param s New state.
264 Job::set_state (State s)
266 bool finished = false;
269 boost::mutex::scoped_lock lm (_state_mutex);
272 if (_state == FINISHED_OK || _state == FINISHED_ERROR || _state == FINISHED_CANCELLED) {
273 _ran_for = time(0) - _start_time;
280 emit (boost::bind (boost::ref (Finished)));
284 /** @return DCPTime (in seconds) that this sub-job has been running */
286 Job::elapsed_sub_time () const
288 if (_sub_start_time == 0) {
292 return time (0) - _sub_start_time;
295 /** Check to see if this job has been interrupted or paused */
297 Job::check_for_interruption_or_pause ()
299 boost::this_thread::interruption_point ();
301 boost::mutex::scoped_lock lm (_state_mutex);
302 while (_state == PAUSED_BY_USER || _state == PAUSED_BY_PRIORITY) {
303 emit (boost::bind (boost::ref (Progress)));
304 _pause_changed.wait (lm);
308 /** Set the progress of the current part of the job.
309 * @param p Progress (from 0 to 1)
310 * @param force Do not ignore this update, even if it hasn't been long since the last one.
313 Job::set_progress (float p, bool force)
315 check_for_interruption_or_pause ();
318 /* Check for excessively frequent progress reporting */
319 boost::mutex::scoped_lock lm (_progress_mutex);
321 gettimeofday (&now, 0);
322 if (_last_progress_update && _last_progress_update->tv_sec > 0) {
323 double const elapsed = (now.tv_sec + now.tv_usec / 1000000.0)
324 - (_last_progress_update->tv_sec + _last_progress_update->tv_usec / 1000000.0);
329 _last_progress_update = now;
332 set_progress_common (p);
336 Job::set_progress_common (optional<float> p)
339 boost::mutex::scoped_lock lm (_progress_mutex);
343 emit (boost::bind (boost::ref (Progress)));
346 /** @return fractional progress of the current sub-job, if known */
348 Job::progress () const
350 boost::mutex::scoped_lock lm (_progress_mutex);
358 boost::mutex::scoped_lock lm (_progress_mutex);
359 LOG_GENERAL ("Sub-job %1 starting", n);
363 set_progress (0, true);
364 _sub_start_time = time (0);
368 Job::error_details () const
370 boost::mutex::scoped_lock lm (_state_mutex);
371 return _error_details;
374 /** @return A summary of any error that the job has generated */
376 Job::error_summary () const
378 boost::mutex::scoped_lock lm (_state_mutex);
379 return _error_summary;
382 /** Set the current error string.
383 * @param s New error string.
384 * @param d New error detail string.
387 Job::set_error (string s, string d)
392 _film->log()->log (String::compose ("Error in job: %1 (%2)", s, d), LogEntry::TYPE_ERROR);
395 boost::mutex::scoped_lock lm (_state_mutex);
400 /** Say that this job's progress will be unknown until further notice */
402 Job::set_progress_unknown ()
404 check_for_interruption_or_pause ();
405 set_progress_common (optional<float> ());
408 /** @return Human-readable status of this job */
412 optional<float> p = progress ();
413 int const t = elapsed_sub_time ();
414 int const r = remaining_time ();
417 if (!finished () && p) {
418 int pc = lrintf (p.get() * 100);
420 /* 100% makes it sound like we've finished when we haven't */
425 snprintf (buffer, sizeof(buffer), "%d%%", pc);
428 if (t > 10 && r > 0) {
429 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time();
430 boost::posix_time::ptime finish = now + boost::posix_time::seconds(r);
431 char finish_string[16];
432 snprintf (finish_string, sizeof(finish_string), "%02d:%02d", int(finish.time_of_day().hours()), int(finish.time_of_day().minutes()));
434 if (now.date() != finish.date()) {
435 /// TRANSLATORS: the %1 in this string will be filled in with a day of the week
436 /// to say what day a job will finish.
437 day = String::compose (_(" on %1"), finish.date().day_of_week().as_long_string());
439 /// TRANSLATORS: "remaining; finishing at" here follows an amount of time that is remaining
440 /// on an operation; after it is an estimated wall-clock completion time.
441 s += String::compose(
442 _("; %1 remaining; finishing at %2%3"),
443 seconds_to_approximate_hms(r), finish_string, day
446 } else if (finished_ok ()) {
447 s = String::compose (_("OK (ran for %1)"), seconds_to_hms (_ran_for));
448 } else if (finished_in_error ()) {
449 s = String::compose (_("Error: %1"), error_summary ());
450 } else if (finished_cancelled ()) {
458 Job::json_status () const
460 boost::mutex::scoped_lock lm (_state_mutex);
466 return N_("running");
468 case PAUSED_BY_PRIORITY:
471 return N_("finished_ok");
473 return N_("finished_error");
474 case FINISHED_CANCELLED:
475 return N_("finished_cancelled");
481 /** @return An estimate of the remaining time for this sub-job, in seconds */
483 Job::remaining_time () const
485 if (progress().get_value_or(0) == 0) {
486 return elapsed_sub_time ();
489 return elapsed_sub_time() / progress().get() - elapsed_sub_time();
499 if (paused_by_user() || paused_by_priority()) {
503 _thread->interrupt ();
504 DCPOMATIC_ASSERT (_thread->joinable ());
511 Job::pause_by_user ()
514 set_state (PAUSED_BY_USER);
515 _pause_changed.notify_all ();
520 Job::pause_by_priority ()
523 set_state (PAUSED_BY_PRIORITY);
524 _pause_changed.notify_all ();
531 if (paused_by_user() || paused_by_priority()) {
533 _pause_changed.notify_all ();
538 Job::when_finished (boost::signals2::connection& connection, function<void()> finished)
540 boost::mutex::scoped_lock lm (_state_mutex);
541 if (_state == FINISHED_OK || _state == FINISHED_ERROR || _state == FINISHED_CANCELLED) {
544 connection = Finished.connect (finished);