132 lines
2.4 KiB
C++
132 lines
2.4 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 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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namespace olive {
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RenderTicket::RenderTicket() :
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is_running_(false),
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has_result_(false),
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finish_count_(0)
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{
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}
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void RenderTicket::WaitForFinished(QMutex *mutex)
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{
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if (is_running_) {
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wait_.wait(mutex);
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}
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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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is_running_ = true;
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has_result_ = false;
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result_.clear();
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}
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void RenderTicket::Finish()
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{
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FinishInternal(false, QVariant());
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}
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void RenderTicket::Finish(QVariant result)
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{
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FinishInternal(true, result);
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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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void RenderTicket::WaitForFinished()
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{
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QMutexLocker locker(&lock_);
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WaitForFinished(&lock_);
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}
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bool RenderTicket::IsRunning(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 running = is_running_;
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if (lock) {
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lock_.unlock();
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}
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return running;
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}
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int RenderTicket::GetFinishCount(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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int count = finish_count_;
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if (lock) {
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lock_.unlock();
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}
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return count;
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}
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bool RenderTicket::HasResult()
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{
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QMutexLocker locker(&lock_);
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return has_result_;
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}
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void RenderTicket::FinishInternal(bool has_result, QVariant result)
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{
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QMutexLocker locker(&lock_);
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if (!is_running_) {
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qWarning() << "Tried to finish ticket that wasn't running";
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} else {
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is_running_ = false;
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has_result_ = has_result;
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result_ = result;
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finish_count_++;
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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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