6.6.1 original

examples/corelib/ipc/doc/src/localfortuneclient.qdoc

@@ -3,14 +3,16 @@
 
 /*!
     \example ipc/localfortuneclient
-    \title Local Fortune Client Example
+    \examplecategory {Connectivity}
+    \title Local Fortune Client
     \ingroup examples-ipc
     \brief Demonstrates using QLocalSocket for a simple local service client.
 
     The Local Fortune Client example shows how to create a client for a simple
     local service using QLocalSocket. It is intended to be run alongside the
-    \l{Local Fortune Server Example}.
+    \l{Local Fortune Server} example.
 
-    \image localfortuneclient-example.png Screenshot of the Local Fortune Client example
+    \image localfortuneclient-example.png Screenshot of the Local Fortune Client
+    example
 
 */

examples/corelib/ipc/doc/src/localfortuneserver.qdoc

@@ -3,13 +3,14 @@
 
 /*!
     \example ipc/localfortuneserver
-    \title Local Fortune Server Example
+    \examplecategory {Connectivity}
+    \title Local Fortune Server
     \ingroup examples-ipc
     \brief Demonstrates using QLocalServer and QLocalSocket for serving a simple local service.
 
     The Local Fortune Server example shows how to create a server for a simple
     local service. It is intended to be run alongside the
-    \l{Local Fortune Client Example}
+    \l{Local Fortune Client} example.
 
     \image localfortuneserver-example.png Screenshot of the Local Fortune Server example
  */

examples/corelib/ipc/doc/src/sharedmemory.qdoc

@@ -3,10 +3,11 @@
 
 /*!
   \example ipc/sharedmemory
-  \title Shared Memory Example
+  \examplecategory {Data Processing & I/O}
+  \title IPC: Shared Memory
   \ingroup examples-ipc
-  \brief Demonstrates doing inter-process communication using shared memory with
-  the QSharedMemory class.
+  \brief Demonstrates how to share image data between different processes
+  using the Shared Memory IPC mechanism.
 
   The Shared Memory example shows how to use the QSharedMemory class
   to implement inter-process communication using shared memory. To

examples/corelib/ipc/localfortuneclient/client.cpp

@@ -1,14 +1,19 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QtWidgets>
-#include <QtNetwork>
-
 #include "client.h"
 
+#include <QDialogButtonBox>
+#include <QGridLayout>
+#include <QGuiApplication>
+#include <QMessageBox>
+#include <QTimer>
+
+using namespace Qt::StringLiterals;
+
 Client::Client(QWidget *parent)
     : QDialog(parent),
-      hostLineEdit(new QLineEdit("fortune")),
+      hostLineEdit(new QLineEdit(u"fortune"_s)),
       getFortuneButton(new QPushButton(tr("Get Fortune"))),
       statusLabel(new QLabel(tr("This examples requires that you run the "
                                 "Local Fortune Server example as well."))),
@@ -28,7 +33,7 @@ Client::Client(QWidget *parent)
     buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
 
     in.setDevice(socket);
-    in.setVersion(QDataStream::Qt_5_10);
+    in.setVersion(QDataStream::Qt_6_0);
 
     connect(hostLineEdit, &QLineEdit::textChanged,
             this, &Client::enableGetFortuneButton);

examples/corelib/ipc/localfortuneclient/client.h

@@ -4,15 +4,12 @@
 #ifndef CLIENT_H
 #define CLIENT_H
 
-#include <QDialog>
 #include <QDataStream>
+#include <QDialog>
+#include <QLabel>
+#include <QLineEdit>
 #include <QLocalSocket>
-
-QT_BEGIN_NAMESPACE
-class QLabel;
-class QLineEdit;
-class QPushButton;
-QT_END_NAMESPACE
+#include <QPushButton>
 
 class Client : public QDialog
 {

examples/corelib/ipc/localfortuneclient/main.cpp

@@ -1,10 +1,10 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QApplication>
-
 #include "client.h"
 
+#include <QApplication>
+
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);

examples/corelib/ipc/localfortuneserver/main.cpp

@@ -1,10 +1,10 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QApplication>
-
 #include "server.h"
 
+#include <QApplication>
+
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);

examples/corelib/ipc/localfortuneserver/server.cpp

@@ -3,27 +3,33 @@
 
 #include "server.h"
 
-#include <QtWidgets>
-#include <QtNetwork>
+#include <QDialogButtonBox>
+#include <QGuiApplication>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QLineEdit>
+#include <QLocalSocket>
+#include <QMessageBox>
+#include <QPushButton>
+#include <QRandomGenerator>
+
+using namespace Qt::StringLiterals;
+
+static const QString idleStateText = QObject::tr("Press \"Listen\" to start the server");
 
 Server::Server(QWidget *parent)
-    : QDialog(parent)
+    : QDialog(parent),
+      server(new QLocalServer(this)),
+      hostLineEdit(new QLineEdit(u"fortune"_s)),
+      statusLabel(new QLabel(idleStateText)),
+      listenButton(new QPushButton(tr("Listen"))),
+      stopListeningButton(new QPushButton(tr("Stop Listening")))
 {
     setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
 
-    server = new QLocalServer(this);
-    if (!server->listen("fortune")) {
-        QMessageBox::critical(this, tr("Local Fortune Server"),
-                              tr("Unable to start the server: %1.")
-                              .arg(server->errorString()));
-        close();
-        return;
-    }
-
-    QLabel *statusLabel = new QLabel;
     statusLabel->setWordWrap(true);
-    statusLabel->setText(tr("The server is running.\n"
-                            "Run the Local Fortune Client example now."));
+
+    stopListeningButton->setDisabled(true);
 
     fortunes << tr("You've been leading a dog's life. Stay off the furniture.")
              << tr("You've got to think about tomorrow.")
@@ -33,28 +39,71 @@ Server::Server(QWidget *parent)
              << tr("You cannot kill time without injuring eternity.")
              << tr("Computers are not intelligent. They only think they are.");
 
+    QLabel *hostLabel = new QLabel(tr("Server name:"));
+
+    connect(server, &QLocalServer::newConnection, this, &Server::sendFortune);
+    connect(hostLineEdit, &QLineEdit::textChanged, this, &Server::toggleListenButton);
+    connect(listenButton, &QPushButton::clicked, this, &Server::listenToServer);
+    connect(stopListeningButton, &QPushButton::clicked,this, &Server::stopListening);
+
     QPushButton *quitButton = new QPushButton(tr("Quit"));
     quitButton->setAutoDefault(false);
     connect(quitButton, &QPushButton::clicked, this, &Server::close);
-    connect(server, &QLocalServer::newConnection, this, &Server::sendFortune);
 
-    QHBoxLayout *buttonLayout = new QHBoxLayout;
-    buttonLayout->addStretch(1);
-    buttonLayout->addWidget(quitButton);
-    buttonLayout->addStretch(1);
+    QDialogButtonBox *buttonBox = new QDialogButtonBox;
+    buttonBox->addButton(listenButton, QDialogButtonBox::ActionRole);
+    buttonBox->addButton(stopListeningButton, QDialogButtonBox::ActionRole);
+    buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
 
-    QVBoxLayout *mainLayout = new QVBoxLayout(this);
-    mainLayout->addWidget(statusLabel);
-    mainLayout->addLayout(buttonLayout);
+    QGridLayout *mainLayout = new QGridLayout(this);
+    mainLayout->addWidget(hostLabel, 0, 0);
+    mainLayout->addWidget(hostLineEdit, 0, 1);
+    mainLayout->addWidget(statusLabel, 2, 0, 3, 2);
+    mainLayout->addWidget(buttonBox, 10, 0, 2, 2);
 
     setWindowTitle(QGuiApplication::applicationDisplayName());
+    hostLineEdit->setFocus();
+}
+
+void Server::listenToServer()
+{
+    name = hostLineEdit->text();
+    if (!server->listen(name)) {
+        QMessageBox::critical(this, tr("Local Fortune Server"),
+                              tr("Unable to start the server: %1.")
+                                      .arg(server->errorString()));
+        name.clear();
+        return;
+    }
+    statusLabel->setText(tr("The server is running.\n"
+                            "Run the Local Fortune Client example now."));
+    toggleListenButton();
+}
+
+void Server::stopListening()
+{
+    server->close();
+    name.clear();
+    statusLabel->setText(idleStateText);
+    toggleListenButton();
+}
+
+void Server::toggleListenButton()
+{
+    if (server->isListening()) {
+        listenButton->setDisabled(true);
+        stopListeningButton->setEnabled(true);
+    } else {
+        listenButton->setEnabled(!hostLineEdit->text().isEmpty());
+        stopListeningButton->setDisabled(true);
+    }
 }
 
 void Server::sendFortune()
 {
     QByteArray block;
     QDataStream out(&block, QIODevice::WriteOnly);
-    out.setVersion(QDataStream::Qt_5_10);
+    out.setVersion(QDataStream::Qt_6_0);
     const int fortuneIndex = QRandomGenerator::global()->bounded(0, fortunes.size());
     const QString &message = fortunes.at(fortuneIndex);
     out << quint32(message.size());

examples/corelib/ipc/localfortuneserver/server.h

@@ -4,27 +4,33 @@
 #ifndef SERVER_H
 #define SERVER_H
 
+#include <QApplication>
 #include <QDialog>
-
-QT_BEGIN_NAMESPACE
-class QLabel;
-class QPushButton;
-class QLocalServer;
-QT_END_NAMESPACE
+#include <QLabel>
+#include <QLineEdit>
+#include <QLocalServer>
+#include <QPushButton>
 
 class Server : public QDialog
 {
-    Q_OBJECT
+    Q_DECLARE_TR_FUNCTIONS(Server)
 
 public:
     explicit Server(QWidget *parent = nullptr);
 
-private slots:
-    void sendFortune();
-
 private:
+    void sendFortune();
+    void toggleListenButton();
+    void listenToServer();
+    void stopListening();
+
     QLocalServer *server;
+    QLineEdit *hostLineEdit;
+    QLabel *statusLabel;
+    QPushButton *listenButton;
+    QPushButton *stopListeningButton;
     QStringList fortunes;
+    QString name;
 };
 
 #endif

examples/corelib/ipc/sharedmemory/dialog.cpp

@@ -2,8 +2,12 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
 #include "dialog.h"
-#include <QFileDialog>
+
 #include <QBuffer>
+#include <QFileDialog>
+#include <QNativeIpcKey>
+
+using namespace Qt::StringLiterals;
 
 /*!
   \class Dialog
@@ -29,8 +33,9 @@
   each button.
 */
 //! [0]
+
 Dialog::Dialog(QWidget *parent)
-  : QDialog(parent), sharedMemory("QSharedMemoryExample")
+    : QDialog(parent), sharedMemory(QNativeIpcKey(u"QSharedMemoryExample"_s))
 {
     ui.setupUi(this);
     connect(ui.loadFromFileButton, &QPushButton::clicked,

examples/corelib/ipc/sharedmemory/dialog.h

@@ -6,6 +6,7 @@
 
 #include <QDialog>
 #include <QSharedMemory>
+
 #include "ui_dialog.h"
 
 //! [0]
@@ -13,21 +14,21 @@ class Dialog : public QDialog
 {
     Q_OBJECT
 
-  public:
+public:
     Dialog(QWidget *parent = nullptr);
 
-  public slots:
+public slots:
     void loadFromFile();
     void loadFromMemory();
 
- private:
+private:
     void detach();
 
-  private:
+private:
     Ui::Dialog ui;
     QSharedMemory sharedMemory;
 };
 //! [0]
 
-#endif
+#endif // DIALOG_H
 

examples/corelib/ipc/sharedmemory/main.cpp

@@ -1,9 +1,10 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-#include <QApplication>
 #include "dialog.h"
 
+#include <QApplication>
+
 //! [0]
 int main(int argc, char *argv[])
 {