neighbor/Explorer: add "noexcept"

src/neighbor/Explorer.hxx

@@ -61,12 +61,12 @@ public:
 	/**
          * Stop exploring.
 	 */
-	virtual void Close() = 0;
+	virtual void Close() noexcept = 0;
 
 	/**
 	 * Obtain a list of currently known neighbors.
 	 */
-	virtual List GetList() const = 0;
+	virtual List GetList() const noexcept = 0;
 };
 
 #endif

src/neighbor/plugins/SmbclientNeighborPlugin.cxx

@@ -74,8 +74,8 @@ public:
 
 	/* virtual methods from class NeighborExplorer */
 	void Open() override;
-	void Close() override;
-	List GetList() const override;
+	void Close() noexcept override;
+	List GetList() const noexcept override;
 
 private:
 	void Run();
@@ -90,7 +90,7 @@ SmbclientNeighborExplorer::Open()
 }
 
 void
-SmbclientNeighborExplorer::Close()
+SmbclientNeighborExplorer::Close() noexcept
 {
 	mutex.lock();
 	quit = true;
@@ -101,7 +101,7 @@ SmbclientNeighborExplorer::Close()
 }
 
 NeighborExplorer::List
-SmbclientNeighborExplorer::GetList() const
+SmbclientNeighborExplorer::GetList() const noexcept
 {
 	const std::lock_guard<Mutex> protect(mutex);
 	/*

src/neighbor/plugins/UpnpNeighborPlugin.cxx

@@ -64,8 +64,8 @@ public:
 
 	/* virtual methods from class NeighborExplorer */
 	void Open() override;
-	void Close() override;
-	List GetList() const override;
+	void Close() noexcept override;
+	List GetList() const noexcept override;
 
 private:
 	/* virtual methods from class UPnPDiscoveryListener */
@@ -91,14 +91,14 @@ UpnpNeighborExplorer::Open()
 }
 
 void
-UpnpNeighborExplorer::Close()
+UpnpNeighborExplorer::Close() noexcept
 {
 	delete discovery;
 	UpnpClientGlobalFinish();
 }
 
 NeighborExplorer::List
-UpnpNeighborExplorer::GetList() const
+UpnpNeighborExplorer::GetList() const noexcept
 {
 	std::vector<ContentDirectoryService> tmp;