QT: Fix issue with selection due to multiple local servers trying to use the same socket.

wb/lib/wb/qt/wb_nav_qt.cqt

@@ -59,7 +59,6 @@ NavQt::NavQt(void* nav_parent_ctx, const char* nav_name,
   form_widget = wrapInFrame(scrolledbrow);
 
   server = new QLocalServer(trace_obj);
-  server->listen("STRING");
   QObject::connect(
       server, SIGNAL(newConnection()), trace_obj, SLOT(sel_convert_cb()));
 
@@ -107,6 +106,10 @@ void NavQtTraceObject::sel_convert_cb()
 
 void NavQt::set_selection_owner(int set)
 {
+  if (!server->isListening()) {
+    QLocalServer::removeServer("STRING");
+    server->listen("STRING");
+  }
   selection_owner = set;
 }
 

wb/lib/wb/qt/wb_pal_qt.cqt

@@ -59,7 +59,6 @@ PalQt::PalQt(void* pal_parent_ctx, const char* pal_name,
   form_widget = wrapInFrame(scrolledbrow);
 
   server = new QLocalServer(trace_obj);
-  server->listen("STRING");
   QObject::connect(
       server, SIGNAL(newConnection()), trace_obj, SLOT(sel_convert_cb()));
 
@@ -108,6 +107,10 @@ void PalQt::set_inputfocus(int focus)
 
 void PalQt::set_selection_owner()
 {
+  if (!server->isListening()) {
+    QLocalServer::removeServer("STRING");
+    server->listen("STRING");
+  }
   selection_owner = 1;
   brow_SetInverseColor(brow_ctx, flow_eDrawType_Line);
 }

wb/lib/wb/qt/wb_wnav_qt.cqt

@@ -95,19 +95,15 @@ WNavQt::WNavQt(void* xn_parent_ctx, QWidget* xn_parent_wid, const char* xn_name,
   *w = form_widget;
 
   serverString = new QLocalServer(trace_obj);
-  serverString->listen("STRING");
   QObject::connect(
       serverString, SIGNAL(newConnection()), trace_obj, SLOT(sel_convert_cb()));
   serverGraph = new QLocalServer(trace_obj);
-  serverGraph->listen("PWR_GRAPH");
   QObject::connect(
       serverGraph, SIGNAL(newConnection()), trace_obj, SLOT(sel_convert_cb()));
   serverObjId = new QLocalServer(trace_obj);
-  serverObjId->listen("PWR_OBJID");
   QObject::connect(
       serverObjId, SIGNAL(newConnection()), trace_obj, SLOT(sel_convert_cb()));
   serverAttrRef = new QLocalServer(trace_obj);
-  serverAttrRef->listen("PWR_ATTRREF");
   QObject::connect(serverAttrRef, SIGNAL(newConnection()), trace_obj,
       SLOT(sel_convert_cb()));
 
@@ -197,6 +193,23 @@ int WNavQt::get_selection(char* str, int len)
 
 void WNavQt::set_selection_owner()
 {
+  if (!serverString->isListening()) {
+    QLocalServer::removeServer("STRING");
+    serverString->listen("STRING");
+  }
+  if (!serverGraph->isListening()) {
+    QLocalServer::removeServer("PWR_GRAPH");
+    serverGraph->listen("PWR_GRAPH");
+  }
+  if (!serverObjId->isListening()) {
+    QLocalServer::removeServer("PWR_OBJID");
+    serverObjId->listen("PWR_OBJID");
+  }
+  if (!serverAttrRef->isListening()) {
+    QLocalServer::removeServer("PWR_ATTRREF");
+    serverAttrRef->listen("PWR_ATTRREF");
+  }
+
   selection_owner = 1;
 }
 
@@ -274,9 +287,11 @@ static void selection_data_set(
 {
   QByteArray block;
   QDataStream out(&block, QIODevice::WriteOnly);
-  out.writeRawData(data, strlen(data));
+  out << QString(data);
 
   QLocalSocket* clientConnection = server->nextPendingConnection();
+  QObject::connect(clientConnection, SIGNAL(disconnected()),
+      clientConnection, SLOT(deleteLater()));
   clientConnection->write(block);
   clientConnection->flush();
   clientConnection->disconnectFromServer();

xtt/lib/cow/qt/cow_wow_qt.cqt

@@ -72,15 +72,6 @@
 
 #include <qlocalsocket.h>
 
-typedef struct {
-  char str[200];
-  int len;
-  int received;
-  pwr_tStatus sts;
-  const char* atom;
-  int new_main;
-} wow_sSelection;
-
 typedef struct {
   char title[80];
   flow_tCtx flow_ctx;
@@ -424,46 +415,33 @@ void CoWowQtObject::DisplayLicense()
 
 int CoWowQt::GetSelection(char* str, int size, const char* atom)
 {
-  log_debug("GetSelection str=%s, size=%d, arom=%s\n", str, size, atom);
-  static wow_sSelection data;
-
-  data.received = 0;
-  data.sts = 0;
-  data.atom = atom;
-  data.new_main = 0;
-
   QLocalSocket* socket = new QLocalSocket();
   socket->connectToServer(fl(atom));
+  if (!socket->waitForConnected()) {
+    log_debug("GetSelection failed, could not connect to local server %s: %s\n", fl(atom), qPrintable(socket->errorString()));
+  }
 
-  while (!data.received) {
+  QString rcvStr;
+  int received = 0;
+  while (!received) {
     if (socket->waitForReadyRead(50)) {
-      if (socket->bytesAvailable() > 0) {
       QDataStream in(socket);
-        if (socket->bytesAvailable() > int(sizeof(data.str) - 1)
-            || in.atEnd()) {
-          data.sts = 0;
-          continue;
-        }
-        in.readRawData(data.str, socket->bytesAvailable());
-        data.str[socket->bytesAvailable()] = 0;
-        data.len = socket->bytesAvailable();
-        data.sts = 1;
-      } else {
-        data.sts = 0;
+      if (socket->bytesAvailable() > 0 && !in.atEnd()) {
+        in >> rcvStr;
       }
-
-      data.received = 1;
+      received = 1;
     }
     QApplication::processEvents();
   }
 
+  socket->close();
   delete socket;
 
-  if (data.sts && data.len < size) {
-    strcpy(str, data.str);
+  if (!rcvStr.isEmpty() && rcvStr.length() < size) {
+    strcpy(str, qPrintable(rcvStr));
   }
 
-  return data.sts;
+  return !rcvStr.isEmpty();
 }
 
 void CoWowQt::CreateFileSelDia(const char* title, void* parent_ctx,