http: Properly stop server on stop server.

UI/RemoteISOScreen.cpp

@@ -79,7 +79,7 @@ static void RegisterServer(int port) {
 static void ExecuteServer() {
 	setCurrentThreadName("HTTPServer");
 
-	net::Init();
+	net::AutoInit netInit;
 	auto http = new http::Server(new threading::SameThreadExecutor());
 
 	std::map<std::string, std::string> paths;
@@ -156,7 +156,11 @@ static void ExecuteServer() {
 	}
 
 	if (!http->Listen(g_Config.iRemoteISOPort)) {
-		http->Listen(0);
+		if (!http->Listen(0)) {
+			ERROR_LOG(COMMON, "Unable to listen on any port");
+			UpdateStatus(ServerStatus::STOPPED);
+			return;
+		}
 	}
 	UpdateStatus(ServerStatus::RUNNING);
 
@@ -173,7 +177,7 @@ static void ExecuteServer() {
 		}
 	}
 
-	net::Shutdown();
+	http->Stop();
 
 	UpdateStatus(ServerStatus::STOPPED);
 }

ext/native/net/http_server.cpp

@@ -162,6 +162,10 @@ bool Server::Listen(int port) {
 }
 
 bool Server::RunSlice(double timeout) {
+	if (listener_ < 0 || port_ == 0) {
+		return false;
+	}
+
 	if (timeout <= 0.0) {
 		timeout = 86400.0;
 	}
@@ -182,7 +186,9 @@ bool Server::RunSlice(double timeout) {
 }
 
 bool Server::Run(int port) {
-	Listen(port);
+	if (!Listen(port)) {
+		return false;
+	}
 
 	while (true) {
 		RunSlice(0.0);
@@ -192,6 +198,10 @@ bool Server::Run(int port) {
 	return true;
 }
 
+void Server::Stop() {
+	closesocket(listener_);
+}
+
 void Server::HandleConnection(int conn_fd) {
   Request request(conn_fd);
   if (!request.IsOK()) {

ext/native/net/http_server.h

@@ -74,6 +74,7 @@ public:
 	// for a new connection to handle.
 	bool RunSlice(double timeout);
 	bool Listen(int port);
+	void Stop();
 
 	void RegisterHandler(const char *url_path, UrlHandlerFunc handler);
 	void SetFallbackHandler(UrlHandlerFunc handler);