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Add error checking to jt9 process control by .lock/.quit files

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This commit is contained in:
Bill Somerville 2020-03-11 22:26:41 +00:00
parent 4d9c9e08e2
commit c58a690bf1
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GPG Key ID: D864B06D1E81618F
2 changed files with 78 additions and 11 deletions
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85
widgets/mainwindow.cpp
View File

@ -845,8 +845,7 @@ MainWindow::MainWindow(QDir const& temp_directory, bool multiple,
}
}
//Create .lock so jt9 will wait
QFile {m_config.temp_dir ().absoluteFilePath (".lock")}.open(QIODevice::ReadWrite);
pause_jt9 ();
QStringList jt9_args {
"-s", QApplication::applicationName () // shared memory key,
@ -1040,6 +1039,75 @@ void MainWindow::on_the_minute ()
}
}
void MainWindow::pause_jt9 ()
{
// Create .lock so jt9 will wait
QFile l {m_config.temp_dir ().absoluteFilePath (".lock")};
if (!l.open(QFile::ReadWrite))
{
MessageBox::warning_message (this, tr ("Error creating \"%1\" - %2").arg (l.fileName ()).arg (l.errorString ()));
}
}
void MainWindow::release_jt9 ()
{
// Remove .lock so jt9 will continue
QFile l {m_config.temp_dir ().absoluteFilePath (".lock")};
while (l.exists ())
{
if (!l.remove ())
{
MessageBox::query_message (this
, tr ("Error removing \"%1\" - %2").arg (l.fileName ()).arg (l.errorString ())
, tr ("Click OK to retry"));
}
}
}
void MainWindow::stop_jt9 ()
{
// Create .quit so jt9 will exit
QFile q {m_config.temp_dir ().absoluteFilePath (".quit")};
while (!q.exists ())
{
if (!q.open (QFile::ReadWrite))
{
MessageBox::query_message (this
, tr ("Error creating \"%1\" - %2").arg (q.fileName ()).arg (q.errorString ())
, tr ("Click OK to retry"));
}
}
release_jt9 ();
if (!proc_jt9.waitForFinished(1000))
{
proc_jt9.close();
}
while (q.exists ())
{
if (!q.remove ())
{
MessageBox::query_message (this
, tr ("Error removing \"%1\" - %2").arg (q.fileName ()).arg (q.errorString ())
, tr ("Click OK to retry"));
}
}
}
void MainWindow::cleanup_jt9 ()
{
// Remove .quit as no longer needed
QFile l {m_config.temp_dir ().absoluteFilePath (".lock")};
while (l.exists ())
{
if (!l.remove ())
{
MessageBox::query_message (this
, tr ("Error removing \"%1\" - %2").arg (l.fileName ()).arg (l.errorString ())
, tr ("Click OK to retry"));
}
}
}
//--------------------------------------------------- MainWindow destructor
MainWindow::~MainWindow()
{
@ -2367,12 +2435,7 @@ void MainWindow::closeEvent(QCloseEvent * e)
int irow=-99;
plotsave_(&sw,&nw,&nh,&irow);
mem_jt9->detach();
QFile quitFile {m_config.temp_dir ().absoluteFilePath (".quit")};
quitFile.open(QIODevice::ReadWrite);
QFile {m_config.temp_dir ().absoluteFilePath (".lock")}.remove(); // Allow jt9 to terminate
bool b=proc_jt9.waitForFinished(1000);
if(!b) proc_jt9.close();
quitFile.remove();
stop_jt9 ();
Q_EMIT finished ();
QMainWindow::closeEvent (e);
}
@ -3020,7 +3083,7 @@ void MainWindow::decode() //decode()
to_jt9(m_ihsym); //Send m_ihsym to jt9[.exe]
if(m_ihsym>=m_hsymStop) m_bStart3=true;
}
QFile {m_config.temp_dir ().absoluteFilePath (".lock")}.remove (); // Allow jt9 to start
release_jt9 ();
auto now = QDateTime::currentDateTimeUtc();
double tseq = fmod(double(now.toMSecsSinceEpoch() ),1000.0*m_TRperiod)/1000.0;
@ -3093,7 +3156,7 @@ void MainWindow::decodeDone ()
dec_data.params.nagain=0;
dec_data.params.ndiskdat=0;
m_nclearave=0;
QFile {m_config.temp_dir ().absoluteFilePath (".lock")}.open(QIODevice::ReadWrite);
pause_jt9 ();
ui->DecodeButton->setChecked (false);
decodeBusy(false);
m_RxLog=0;
@ -8118,7 +8181,7 @@ void MainWindow::on_cbMenus_toggled(bool b)
void MainWindow::on_cbCQonly_toggled(bool)
{
QFile {m_config.temp_dir().absoluteFilePath(".lock")}.remove(); // Allow jt9 to start
release_jt9 ();
decodeBusy(true);
}

4
widgets/mainwindow.h
View File

@ -770,6 +770,10 @@ private:
void writeFoxQSO (QString const& msg);
void to_jt9(qint32 n);
qint32 from_jt9();
void pause_jt9 ();
void release_jt9 ();
void stop_jt9 ();
void cleanup_jt9 ();
};
extern int killbyname(const char* progName);