*nix: SerialPort: revised mechanism for the preservation and restoration

of the port settings when opening/closing.
Now, when you open the port settings are always saved. But when you
close the port, you can specify: to restore the old settings or not.
To do this, introduce new methods:
void setRestoreSettingsOnClose(bool restore);
bool restoreSettingsOnClose() const;

1 files changed, 13 insertions, 0 deletions

diff --git a/src/serialport.cpp b/src/serialport.cpp
index f4f5691..eba9e01 100644
--- a/src/serialport.cpp
+++ b/src/serialport.cpp
@@ -39,6 +39,7 @@ SerialPortPrivate::SerialPortPrivate(SerialPort *parent)
     , m_flow(SerialPort::UnknownFlowControl)
     , m_policy(SerialPort::IgnorePolicy)
     , m_portError(SerialPort::NoError)
+    , m_restoreSettingsOnClose(true)
 {
     m_engine = SerialPortEngine::create(this);
     Q_ASSERT(m_engine);
@@ -505,6 +506,18 @@ void SerialPort::close()
         d->setError(SerialPort::DeviceIsNotOpenedError);
 }
 
+void SerialPort::setRestoreSettingsOnClose(bool restore)
+{
+    Q_D( SerialPort);
+    d->m_restoreSettingsOnClose = restore;
+}
+
+bool SerialPort::restoreSettingsOnClose() const
+{
+    Q_D(const SerialPort);
+    return d->m_restoreSettingsOnClose;
+}
+
 bool SerialPort::setRate(qint32 rate, Directions dir)
 {
     Q_D(SerialPort);