120 lines
2.1 KiB
C++
120 lines
2.1 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "threadticket.h"
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OLIVE_NAMESPACE_ENTER
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RenderTicket::RenderTicket() :
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started_(false),
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finished_(false),
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cancelled_(false)
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{
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SetJobTime();
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}
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void RenderTicket::WaitForFinished()
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{
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QMutexLocker locker(&lock_);
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if (!finished_) {
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wait_.wait(&lock_);
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}
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}
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QVariant RenderTicket::Get()
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{
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WaitForFinished();
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// We don't have to mutex around this because there is no way to write to `result_` after
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// the ticket has finished and the above function blocks the calling thread until it is finished
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return result_;
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}
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bool RenderTicket::IsFinished(bool lock)
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{
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if (lock) {
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lock_.lock();
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}
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bool finished = finished_;
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if (lock) {
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lock_.unlock();
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}
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return finished;
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}
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bool RenderTicket::WasCancelled()
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{
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QMutexLocker locker(&lock_);
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return cancelled_;
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}
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void RenderTicket::Start()
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{
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QMutexLocker locker(&lock_);
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if (!started_ && !finished_) {
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started_ = true;
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}
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}
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void RenderTicket::Finish(QVariant result, bool cancelled)
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{
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QMutexLocker locker(&lock_);
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if (started_ && !finished_) {
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finished_ = true;
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cancelled_ = cancelled;
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result_ = result;
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wait_.wakeAll();
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locker.unlock();
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emit Finished();
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}
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}
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void RenderTicket::Cancel()
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{
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QMutexLocker locker(&lock_);
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if (!finished_) {
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cancelled_ = true;
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if (!started_) {
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finished_ = true;
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wait_.wakeAll();
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locker.unlock();
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emit Finished();
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}
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}
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}
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OLIVE_NAMESPACE_EXIT
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