X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fjob_manager.cc;h=d8c0b02f2f210a58c863fe81d072dfecdd883468;hp=f962754677c2c1c672092838a0eca23f73e5873f;hb=da44da6f31f97d39ca91c35955e573e76371f2c2;hpb=47f25009bcbc765e397bcb471dd361a511c99daf diff --git a/src/lib/job_manager.cc b/src/lib/job_manager.cc index f96275467..d8c0b02f2 100644 --- a/src/lib/job_manager.cc +++ b/src/lib/job_manager.cc @@ -1,75 +1,133 @@ /* - Copyright (C) 2012 Carl Hetherington + Copyright (C) 2012-2021 Carl Hetherington - This program is free software; you can redistribute it and/or modify + This file is part of DCP-o-matic. + + DCP-o-matic is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + DCP-o-matic is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + along with DCP-o-matic. If not, see . */ + /** @file src/job_manager.cc * @brief A simple scheduler for jobs. */ -#include -#include -#include "job_manager.h" -#include "job.h" + +#include "analyse_audio_job.h" +#include "analyse_subtitles_job.h" #include "cross.h" -#include "ui_signaller.h" +#include "film.h" +#include "job.h" +#include "job_manager.h" +#include -using std::string; + +using std::dynamic_pointer_cast; +using std::function; using std::list; -using boost::shared_ptr; +using std::make_shared; +using std::shared_ptr; +using std::string; +using std::weak_ptr; +using boost::bind; +using boost::optional; + + +JobManager* JobManager::_instance = nullptr; -JobManager* JobManager::_instance = 0; JobManager::JobManager () - : _last_active_jobs (false) { - boost::thread (boost::bind (&JobManager::scheduler, this)); + +} + + +void +JobManager::start () +{ + _scheduler = boost::thread (boost::bind(&JobManager::scheduler, this)); +#ifdef DCPOMATIC_LINUX + pthread_setname_np (_scheduler.native_handle(), "job-scheduler"); +#endif +} + + +JobManager::~JobManager () +{ + boost::this_thread::disable_interruption dis; + + for (auto& i: _connections) { + i.disconnect (); + } + + { + boost::mutex::scoped_lock lm (_mutex); + _terminate = true; + _empty_condition.notify_all (); + } + + try { + _scheduler.join(); + } catch (...) {} } + shared_ptr JobManager::add (shared_ptr j) { - boost::mutex::scoped_lock lm (_mutex); - _jobs.push_back (j); + { + boost::mutex::scoped_lock lm (_mutex); + _jobs.push_back (j); + _empty_condition.notify_all (); + } + + emit (boost::bind(boost::ref(JobAdded), weak_ptr(j))); + return j; } -void + +shared_ptr JobManager::add_after (shared_ptr after, shared_ptr j) { - boost::mutex::scoped_lock lm (_mutex); - list >::iterator i = find (_jobs.begin(), _jobs.end(), after); - assert (i != _jobs.end ()); - ++i; - _jobs.insert (i, j); + { + boost::mutex::scoped_lock lm (_mutex); + auto i = find (_jobs.begin(), _jobs.end(), after); + DCPOMATIC_ASSERT (i != _jobs.end()); + _jobs.insert (i, j); + _empty_condition.notify_all (); + } + + emit (boost::bind(boost::ref(JobAdded), weak_ptr(j))); + + return j; } -list > + +list> JobManager::get () const { boost::mutex::scoped_lock lm (_mutex); return _jobs; } + bool JobManager::work_to_do () const { boost::mutex::scoped_lock lm (_mutex); - list >::const_iterator i = _jobs.begin(); + auto i = _jobs.begin(); while (i != _jobs.end() && (*i)->finished()) { ++i; } @@ -77,65 +135,277 @@ JobManager::work_to_do () const return i != _jobs.end (); } + bool JobManager::errors () const { boost::mutex::scoped_lock lm (_mutex); - for (list >::const_iterator i = _jobs.begin(); i != _jobs.end(); ++i) { - if ((*i)->finished_in_error ()) { + for (auto i: _jobs) { + if (i->finished_in_error()) { return true; } } return false; -} +} + void JobManager::scheduler () { - while (1) { + start_of_thread ("JobManager"); - bool active_jobs = false; + while (true) { - { - boost::mutex::scoped_lock lm (_mutex); - for (list >::iterator i = _jobs.begin(); i != _jobs.end(); ++i) { + boost::mutex::scoped_lock lm (_mutex); - if (!(*i)->finished ()) { - active_jobs = true; - } - - if ((*i)->running ()) { - /* Something is already happening */ - break; + while (true) { + bool have_new = false; + bool have_running = false; + for (auto i: _jobs) { + if (i->running()) { + have_running = true; } - - if ((*i)->is_new()) { - (*i)->start (); - - /* Only start one job at once */ - break; + if (i->is_new()) { + have_new = true; } } + + if ((!have_running && have_new) || _terminate) { + break; + } + + _empty_condition.wait (lm); + } + + if (_terminate) { + break; } - if (active_jobs != _last_active_jobs) { - _last_active_jobs = active_jobs; - if (ui_signaller) { - ui_signaller->emit (boost::bind (boost::ref (ActiveJobsChanged), active_jobs)); + for (auto i: _jobs) { + if (i->is_new()) { + _connections.push_back (i->FinishedImmediate.connect(bind(&JobManager::job_finished, this))); + i->start (); + emit (boost::bind (boost::ref (ActiveJobsChanged), _last_active_job, i->json_name())); + _last_active_job = i->json_name (); + /* Only start one job at once */ + break; } } + } +} - dcpomatic_sleep (1); + +void +JobManager::job_finished () +{ + { + boost::mutex::scoped_lock lm (_mutex); + emit (boost::bind(boost::ref (ActiveJobsChanged), _last_active_job, optional())); + _last_active_job = optional(); } + + _empty_condition.notify_all (); } + JobManager * JobManager::instance () { - if (_instance == 0) { + if (!_instance) { _instance = new JobManager (); + _instance->start (); } return _instance; } + + +void +JobManager::drop () +{ + delete _instance; + _instance = nullptr; +} + + +void +JobManager::analyse_audio ( + shared_ptr film, + shared_ptr playlist, + bool from_zero, + boost::signals2::connection& connection, + function ready + ) +{ + { + boost::mutex::scoped_lock lm (_mutex); + + for (auto i: _jobs) { + auto a = dynamic_pointer_cast (i); + if (a && a->path() == film->audio_analysis_path(playlist) && !i->finished_cancelled()) { + i->when_finished (connection, ready); + return; + } + } + } + + shared_ptr job; + + { + boost::mutex::scoped_lock lm (_mutex); + + job = make_shared (film, playlist, from_zero); + connection = job->Finished.connect (ready); + _jobs.push_back (job); + _empty_condition.notify_all (); + } + + emit (boost::bind (boost::ref (JobAdded), weak_ptr (job))); +} + + +void +JobManager::analyse_subtitles ( + shared_ptr film, + shared_ptr content, + boost::signals2::connection& connection, + function ready + ) +{ + { + boost::mutex::scoped_lock lm (_mutex); + + for (auto i: _jobs) { + auto a = dynamic_pointer_cast (i); + if (a && a->path() == film->subtitle_analysis_path(content)) { + i->when_finished (connection, ready); + return; + } + } + } + + shared_ptr job; + + { + boost::mutex::scoped_lock lm (_mutex); + + job = make_shared(film, content); + connection = job->Finished.connect (ready); + _jobs.push_back (job); + _empty_condition.notify_all (); + } + + emit (boost::bind(boost::ref(JobAdded), weak_ptr(job))); +} + + +void +JobManager::increase_priority (shared_ptr job) +{ + bool changed = false; + + { + boost::mutex::scoped_lock lm (_mutex); + auto last = _jobs.end (); + for (auto i = _jobs.begin(); i != _jobs.end(); ++i) { + if (*i == job && last != _jobs.end()) { + swap (*i, *last); + changed = true; + break; + } + last = i; + } + } + + if (changed) { + priority_changed (); + } +} + + +void +JobManager::priority_changed () +{ + { + boost::mutex::scoped_lock lm (_mutex); + + bool first = true; + for (auto i: _jobs) { + if (first) { + if (i->is_new ()) { + i->start (); + } else if (i->paused_by_priority ()) { + i->resume (); + } + first = false; + } else { + if (i->running ()) { + i->pause_by_priority (); + } + } + } + } + + emit (boost::bind(boost::ref(JobsReordered))); +} + + +void +JobManager::decrease_priority (shared_ptr job) +{ + bool changed = false; + + { + boost::mutex::scoped_lock lm (_mutex); + for (auto i = _jobs.begin(); i != _jobs.end(); ++i) { + auto next = i; + ++next; + if (*i == job && next != _jobs.end()) { + swap (*i, *next); + changed = true; + break; + } + } + } + + if (changed) { + priority_changed (); + } +} + + +void +JobManager::pause () +{ + boost::mutex::scoped_lock lm (_mutex); + + if (_paused) { + return; + } + + for (auto i: _jobs) { + if (i->pause_by_user()) { + _paused_job = i; + } + } + + _paused = true; +} + + +void +JobManager::resume () +{ + boost::mutex::scoped_lock lm (_mutex); + if (!_paused) { + return; + } + + if (_paused_job) { + _paused_job->resume (); + } + + _paused_job.reset (); + _paused = false; +}