Job improvements (#13895)

* Add job wait/queued state
* Add support for limiting number of jobs running
* Add job queue for jobs waiting to run

ApplicationLibCode/ProjectDataModel/ProcessControl/RimProcessQueue.cpp

@@ -0,0 +1,183 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2026     Equinor ASA
+//
+//  ResInsight 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 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#include "RimProcessQueue.h"
+
+#include "RimProcess.h"
+
+#include "RiaPreferencesOpm.h"
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+RimProcessQueue::RimProcessQueue()
+{
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+RimProcessQueue* RimProcessQueue::instance()
+{
+    static RimProcessQueue theInstance;
+    return &theInstance;
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+size_t RimProcessQueue::queueProcess( RimProcess* process )
+{
+    if ( process == nullptr ) return 0;
+    return instance()->internalQueueProcess( process );
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimProcessQueue::stopProcess( size_t processId )
+{
+    instance()->internalStopProcess( processId );
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimProcessQueue::onProcessFinished( size_t processId )
+{
+    instance()->internalOnProcessFinished( processId );
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimProcessQueue::launchNextProcessIfPossible()
+{
+    if ( m_waitingProcesses.empty() ) return;
+
+    if ( m_runningProcesses.size() >= RiaPreferencesOpm::current()->maxParallelJobs() ) return;
+
+    auto nextProcess = m_waitingProcesses.front();
+    m_waitingProcesses.pop_front();
+    if ( nextProcess->start() )
+    {
+        m_runningProcesses.push_back( nextProcess );
+    }
+    else
+    {
+        nextProcess->notifyErrorFinish();
+    }
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+size_t RimProcessQueue::internalQueueProcess( RimProcess* process )
+{
+    QMutexLocker locker( &m_mutex );
+
+    m_waitingProcesses.push_back( process );
+    size_t processId = process->ID();
+    launchNextProcessIfPossible();
+    return processId;
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimProcessQueue::internalStopProcess( size_t processId )
+{
+    bool        isWaitingProcess = false;
+    RimProcess* theProcess       = nullptr;
+
+    {
+        QMutexLocker locker( &m_mutex );
+
+        for ( auto proc : m_waitingProcesses )
+        {
+            if ( proc->ID() == processId )
+            {
+                m_waitingProcesses.remove( proc );
+                theProcess       = proc;
+                isWaitingProcess = true;
+                break;
+            }
+        }
+
+        if ( !isWaitingProcess )
+        {
+            for ( auto proc : m_runningProcesses )
+            {
+                if ( proc->ID() == processId )
+                {
+                    theProcess = proc;
+                    m_runningProcesses.remove( proc );
+                    break;
+                }
+            }
+        }
+
+        launchNextProcessIfPossible();
+    }
+
+    if ( theProcess != nullptr )
+    {
+        if ( isWaitingProcess )
+        {
+            theProcess->notifyErrorFinish();
+        }
+        else
+        {
+            theProcess->terminate();
+        }
+    }
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimProcessQueue::internalOnProcessFinished( size_t processId )
+{
+    QMutexLocker locker( &m_mutex );
+
+    bool isWaitingProcess = false;
+
+    for ( auto proc : m_waitingProcesses )
+    {
+        if ( proc->ID() == processId )
+        {
+            m_waitingProcesses.remove( proc );
+            isWaitingProcess = true;
+            break;
+        }
+    }
+
+    if ( !isWaitingProcess )
+    {
+        for ( auto proc : m_runningProcesses )
+        {
+            if ( proc->ID() == processId )
+            {
+                m_runningProcesses.remove( proc );
+                break;
+            }
+        }
+    }
+
+    launchNextProcessIfPossible();
+}