X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fjob.cc;h=35f5834080af4ab9de1f876a52656961631532c9;hb=5b3e3df6c9352e31dd932a5af215eabbf2cf27c8;hp=77d3671369481b0728cac6b369827a6291fab1fb;hpb=5121d13ded51a70169f5b5d649067c9b26456705;p=dcpomatic.git diff --git a/src/lib/job.cc b/src/lib/job.cc index 77d367136..35f583408 100644 --- a/src/lib/job.cc +++ b/src/lib/job.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2012 Carl Hetherington + Copyright (C) 2012-2015 Carl Hetherington This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -17,33 +17,54 @@ */ -/** @file src/job.cc +/** @file src/job.cc * @brief A parent class to represent long-running tasks which are run in their own thread. */ -#include -#include -#include #include "job.h" #include "util.h" +#include "cross.h" +#include "exceptions.h" +#include "film.h" +#include "log.h" +#include "compose.hpp" +#include +#include +#include +#include #include "i18n.h" using std::string; using std::list; -using std::stringstream; +using std::cout; using boost::shared_ptr; +using boost::optional; +using boost::function; -/** @param s Film that we are operating on. - */ -Job::Job (shared_ptr f) - : _film (f) +#define LOG_ERROR_NC(...) _film->log()->log (__VA_ARGS__, LogEntry::TYPE_ERROR); + +/** @param film Associated film, or 0 */ +Job::Job (shared_ptr film) + : _film (film) + , _thread (0) , _state (NEW) , _start_time (0) - , _progress_unknown (false) + , _progress (0) , _ran_for (0) { - descend (1); + +} + +Job::~Job () +{ + if (_thread) { + _thread->interrupt (); + DCPOMATIC_ASSERT (_thread->joinable ()); + _thread->join (); + } + + delete _thread; } /** Start the job in a separate thread, returning immediately */ @@ -52,7 +73,7 @@ Job::start () { set_state (RUNNING); _start_time = time (0); - boost::thread (boost::bind (&Job::run_wrapper, this)); + _thread = new boost::thread (boost::bind (&Job::run_wrapper, this)); } /** A wrapper for the ::run() method to catch exceptions */ @@ -63,39 +84,80 @@ Job::run_wrapper () run (); - } catch (libdcp::FileError& e) { - - set_progress (1); - set_state (FINISHED_ERROR); - + } catch (dcp::FileError& e) { + string m = String::compose (_("An error occurred whilst handling the file %1."), boost::filesystem::path (e.filename()).leaf()); - - boost::filesystem::space_info const s = boost::filesystem::space (e.filename()); - if (s.available < pow (1024, 3)) { - m += N_("\n\n"); - m += _("The drive that the film is stored on is low in disc space. Free some more space and try again."); + + try { + boost::filesystem::space_info const s = boost::filesystem::space (e.filename()); + if (s.available < pow (1024, 3)) { + m += N_("\n\n"); + m += _("The drive that the film is stored on is low in disc space. Free some more space and try again."); + } + } catch (...) { + } set_error (e.what(), m); - - } catch (std::exception& e) { + set_progress (1); + set_state (FINISHED_ERROR); + + } catch (OpenFileError& e) { + + set_error ( + String::compose (_("Could not open %1"), e.file().string()), + String::compose (_("DCP-o-matic could not open the file %1. Perhaps it does not exist or is in an unexpected format."), e.file().string()) + ); + + set_progress (1); + set_state (FINISHED_ERROR); + + } catch (boost::filesystem::filesystem_error& e) { + + if (e.code() == boost::system::errc::no_such_file_or_directory) { + set_error ( + String::compose (_("Could not open %1"), e.path1().string ()), + String::compose (_("DCP-o-matic could not open the file %1. Perhaps it does not exist or is in an unexpected format."), e.path1().string()) + ); + } else { + set_error ( + e.what (), + string (_("It is not known what caused this error.")) + " " + REPORT_PROBLEM + ); + } set_progress (1); set_state (FINISHED_ERROR); + + } catch (boost::thread_interrupted &) { + + set_state (FINISHED_CANCELLED); + + } catch (std::bad_alloc& e) { + + 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.")); + set_progress (1); + set_state (FINISHED_ERROR); + + } catch (std::exception& e) { + set_error ( e.what (), - _("It is not known what caused this error. The best idea is to report the problem to the DVD-o-matic mailing list (dvdomatic@carlh.net)") + string (_("It is not known what caused this error.")) + " " + REPORT_PROBLEM ); - } catch (...) { - set_progress (1); set_state (FINISHED_ERROR); + + } catch (...) { + set_error ( _("Unknown error"), - _("It is not known what caused this error. The best idea is to report the problem to the DVD-o-matic mailing list (dvdomatic@carlh.net)") + string (_("It is not known what caused this error.")) + " " + REPORT_PROBLEM ); + set_progress (1); + set_state (FINISHED_ERROR); } } @@ -120,7 +182,7 @@ bool Job::finished () const { boost::mutex::scoped_lock lm (_state_mutex); - return _state == FINISHED_OK || _state == FINISHED_ERROR; + return _state == FINISHED_OK || _state == FINISHED_ERROR || _state == FINISHED_CANCELLED; } /** @return true if the job has finished successfully */ @@ -139,29 +201,52 @@ Job::finished_in_error () const return _state == FINISHED_ERROR; } +bool +Job::finished_cancelled () const +{ + boost::mutex::scoped_lock lm (_state_mutex); + return _state == FINISHED_CANCELLED; +} + +bool +Job::paused () const +{ + boost::mutex::scoped_lock lm (_state_mutex); + return _state == PAUSED; +} + /** Set the state of this job. * @param s New state. */ void Job::set_state (State s) { - boost::mutex::scoped_lock lm (_state_mutex); - _state = s; + bool finished = false; + + { + boost::mutex::scoped_lock lm (_state_mutex); + _state = s; - if (_state == FINISHED_OK || _state == FINISHED_ERROR) { - _ran_for = elapsed_time (); - Finished (); + if (_state == FINISHED_OK || _state == FINISHED_ERROR || _state == FINISHED_CANCELLED) { + _ran_for = elapsed_time (); + finished = true; + _sub_name.clear (); + } + } + + if (finished) { + emit (boost::bind (boost::ref (Finished))); } } -/** @return Time (in seconds) that this job has been running */ +/** @return DCPTime (in seconds) that this sub-job has been running */ int Job::elapsed_time () const { if (_start_time == 0) { return 0; } - + return time (0) - _start_time; } @@ -169,61 +254,51 @@ Job::elapsed_time () const * @param p Progress (from 0 to 1) */ void -Job::set_progress (float p) +Job::set_progress (float p, bool force) { - boost::mutex::scoped_lock lm (_progress_mutex); - _progress_unknown = false; - _stack.back().normalised = p; + if (!force && fabs (p - progress().get_value_or(0)) < 0.01) { + /* Calm excessive progress reporting */ + return; + } + + set_progress_common (p); } -/** @return fractional overall progress, or -1 if not known */ -float -Job::overall_progress () const +void +Job::set_progress_common (optional p) { boost::mutex::scoped_lock lm (_progress_mutex); - if (_progress_unknown) { - return -1; - } + _progress = p; + boost::this_thread::interruption_point (); - float overall = 0; - float factor = 1; - for (list::const_iterator i = _stack.begin(); i != _stack.end(); ++i) { - factor *= i->allocation; - overall += i->normalised * factor; + boost::mutex::scoped_lock lm2 (_state_mutex); + while (_state == PAUSED) { + _pause_changed.wait (lm2); } - if (overall > 1) { - overall = 1; - } - - return overall; + lm.unlock (); + lm2.unlock (); + + emit (boost::bind (boost::ref (Progress))); } -/** Ascend up one level in terms of progress reporting; see descend() */ -void -Job::ascend () +/** @return fractional progress of the current sub-job, if known */ +optional +Job::progress () const { boost::mutex::scoped_lock lm (_progress_mutex); - - assert (!_stack.empty ()); - float const a = _stack.back().allocation; - _stack.pop_back (); - _stack.back().normalised += a; + return _progress; } -/** Descend down one level in terms of progress reporting; e.g. if - * there is a task which is split up into N subtasks, each of which - * report their progress from 0 to 100%, call descend() before executing - * each subtask, and ascend() afterwards to ensure that overall progress - * is reported correctly. - * - * @param a Fraction (from 0 to 1) of the current task to allocate to the subtask. - */ void -Job::descend (float a) +Job::sub (string n) { - boost::mutex::scoped_lock lm (_progress_mutex); - _stack.push_back (Level (a)); + { + boost::mutex::scoped_lock lm (_progress_mutex); + _sub_name = n; + } + + set_progress (0, true); } string @@ -247,6 +322,12 @@ Job::error_summary () const void Job::set_error (string s, string d) { + if (_film) { + LOG_ERROR_NC (s); + LOG_ERROR_NC (d); + _film->log()->log (String::compose ("Error in job: %1 (%2)", s, d), LogEntry::TYPE_ERROR); + } + boost::mutex::scoped_lock lm (_state_mutex); _error_summary = s; _error_details = d; @@ -256,28 +337,28 @@ Job::set_error (string s, string d) void Job::set_progress_unknown () { - boost::mutex::scoped_lock lm (_progress_mutex); - _progress_unknown = true; + set_progress_common (optional ()); } /** @return Human-readable status of this job */ string Job::status () const { - float const p = overall_progress (); + optional p = progress (); int const t = elapsed_time (); int const r = remaining_time (); - int pc = rint (p * 100); - if (pc == 100) { - /* 100% makes it sound like we've finished when we haven't */ - pc = 99; - } + SafeStringStream s; + if (!finished () && p) { + int pc = lrintf (p.get() * 100); + if (pc == 100) { + /* 100% makes it sound like we've finished when we haven't */ + pc = 99; + } - stringstream s; - if (!finished ()) { s << pc << N_("%"); - if (p >= 0 && t > 10 && r > 0) { + + if (t > 10 && r > 0) { /// TRANSLATORS: remaining here follows an amount of time that is remaining /// on an operation. s << "; " << seconds_to_approximate_hms (r) << " " << _("remaining"); @@ -285,15 +366,91 @@ Job::status () const } else if (finished_ok ()) { s << String::compose (_("OK (ran for %1)"), seconds_to_hms (_ran_for)); } else if (finished_in_error ()) { - s << String::compose (_("Error (%1)"), error_summary()); + s << String::compose (_("Error: %1"), error_summary ()); + } else if (finished_cancelled ()) { + s << _("Cancelled"); } return s.str (); } -/** @return An estimate of the remaining time for this job, in seconds */ +string +Job::json_status () const +{ + boost::mutex::scoped_lock lm (_state_mutex); + + switch (_state) { + case NEW: + return N_("new"); + case RUNNING: + return N_("running"); + case PAUSED: + return N_("paused"); + case FINISHED_OK: + return N_("finished_ok"); + case FINISHED_ERROR: + return N_("finished_error"); + case FINISHED_CANCELLED: + return N_("finished_cancelled"); + } + + return ""; +} + +/** @return An estimate of the remaining time for this sub-job, in seconds */ int Job::remaining_time () const { - return elapsed_time() / overall_progress() - elapsed_time(); + if (progress().get_value_or(0) == 0) { + return elapsed_time (); + } + + return elapsed_time() / progress().get() - elapsed_time(); +} + +void +Job::cancel () +{ + if (!_thread) { + return; + } + + if (paused ()) { + resume (); + } + + _thread->interrupt (); + DCPOMATIC_ASSERT (_thread->joinable ()); + _thread->join (); + delete _thread; + _thread = 0; +} + +void +Job::pause () +{ + if (running ()) { + set_state (PAUSED); + _pause_changed.notify_all (); + } +} + +void +Job::resume () +{ + if (paused ()) { + set_state (RUNNING); + _pause_changed.notify_all (); + } +} + +void +Job::when_finished (boost::signals2::connection& connection, function finished) +{ + boost::mutex::scoped_lock lm (_state_mutex); + if (_state == FINISHED_OK || _state == FINISHED_ERROR || _state == FINISHED_CANCELLED) { + finished (); + } else { + connection = Finished.connect (finished); + } }