Mark getters as const

singleapplication.cpp

@@ -172,9 +172,9 @@ SingleApplication::~SingleApplication()
  * Checks if the current application instance is primary.
  * @return Returns true if the instance is primary, false otherwise.
  */
-bool SingleApplication::isPrimary()
+bool SingleApplication::isPrimary() const
 {
-    Q_D( SingleApplication );
+    Q_D( const SingleApplication );
     return d->server != nullptr;
 }
 
@@ -182,9 +182,9 @@ bool SingleApplication::isPrimary()
  * Checks if the current application instance is secondary.
  * @return Returns true if the instance is secondary, false otherwise.
  */
-bool SingleApplication::isSecondary()
+bool SingleApplication::isSecondary() const
 {
-    Q_D( SingleApplication );
+    Q_D( const SingleApplication );
     return d->server == nullptr;
 }
 
@@ -194,9 +194,9 @@ bool SingleApplication::isSecondary()
  * only incremented afterwards.
  * @return Returns a unique instance id.
  */
-quint32 SingleApplication::instanceId()
+quint32 SingleApplication::instanceId() const
 {
-    Q_D( SingleApplication );
+    Q_D( const SingleApplication );
     return d->instanceNumber;
 }
 
@@ -206,9 +206,9 @@ quint32 SingleApplication::instanceId()
  * specific APIs.
  * @return Returns the primary instance PID.
  */
-qint64 SingleApplication::primaryPid()
+qint64 SingleApplication::primaryPid() const
 {
-    Q_D( SingleApplication );
+    Q_D( const SingleApplication );
     return d->primaryPid();
 }
 
@@ -216,9 +216,9 @@ qint64 SingleApplication::primaryPid()
  * Returns the username the primary instance is running as.
  * @return Returns the username the primary instance is running as.
  */
-QString SingleApplication::primaryUser()
+QString SingleApplication::primaryUser() const
 {
-    Q_D( SingleApplication );
+    Q_D( const SingleApplication );
     return d->primaryUser();
 }
 
@@ -226,7 +226,7 @@ QString SingleApplication::primaryUser()
  * Returns the username the current instance is running as.
  * @return Returns the username the current instance is running as.
  */
-QString SingleApplication::currentUser()
+QString SingleApplication::currentUser() const
 {
     return SingleApplicationPrivate::getUsername();
 }
@@ -267,8 +267,8 @@ void SingleApplication::abortSafely()
     ::exit( EXIT_FAILURE );
 }
 
-QStringList SingleApplication::userData()
+QStringList SingleApplication::userData() const
 {
-    Q_D( SingleApplication );
+    Q_D( const SingleApplication );
     return d->appData();
 }

singleapplication.h

@@ -92,37 +92,37 @@ public:
      * @brief Returns if the instance is the primary instance
      * @returns {bool}
      */
-    bool isPrimary();
+    bool isPrimary() const;
 
     /**
      * @brief Returns if the instance is a secondary instance
      * @returns {bool}
      */
-    bool isSecondary();
+    bool isSecondary() const;
 
     /**
      * @brief Returns a unique identifier for the current instance
      * @returns {qint32}
      */
-    quint32 instanceId();
+    quint32 instanceId() const;
 
     /**
      * @brief Returns the process ID (PID) of the primary instance
      * @returns {qint64}
      */
-    qint64 primaryPid();
+    qint64 primaryPid() const;
 
     /**
      * @brief Returns the username of the user running the primary instance
      * @returns {QString}
      */
-    QString primaryUser();
+    QString primaryUser() const;
 
     /**
      * @brief Returns the username of the current user
      * @returns {QString}
      */
-    QString currentUser();
+    QString currentUser() const;
 
     /**
      * @brief Sends a message to the primary instance. Returns true on success.
@@ -137,7 +137,7 @@ public:
      * @brief Get the set user data.
      * @returns {QStringList}
      */
-    QStringList userData();
+    QStringList userData() const;
 
 Q_SIGNALS:
     void instanceStarted();