From cf8f369f8575dcb9ca4d5116f3afc7cff4a080af Mon Sep 17 00:00:00 2001
From: Topi Reinio <topi.reinio@digia.com>
Date: Wed, 15 Oct 2014 13:50:27 +0200
Subject: Move Qt Core examples under a common subdirectory

Qt Core examples were scattered into several subdirectories under
qtbase/examples. This caused an issue with the example manifest
file generated by QDoc; it expects to find all examples under a
common directory in order to produde correct paths to the example
.pro files. Qt Creator will not find the examples without a valid
manifest file.

This change moves the examples and edits the documentation files
accordingly.

Task-number: QTBUG-41963
Change-Id: I51d86782e0ba21c5c9bae5f15401ec774abe5cf8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
---
 examples/corelib/threads/semaphores/semaphores.cpp | 112 +++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 examples/corelib/threads/semaphores/semaphores.cpp

(limited to 'examples/corelib/threads/semaphores/semaphores.cpp')

diff --git a/examples/corelib/threads/semaphores/semaphores.cpp b/examples/corelib/threads/semaphores/semaphores.cpp
new file mode 100644
index 0000000000..f519e5f323
--- /dev/null
+++ b/examples/corelib/threads/semaphores/semaphores.cpp
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+**     of its contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+//! [0]
+const int DataSize = 100000;
+
+const int BufferSize = 8192;
+char buffer[BufferSize];
+
+QSemaphore freeBytes(BufferSize);
+QSemaphore usedBytes;
+//! [0]
+
+//! [1]
+class Producer : public QThread
+//! [1] //! [2]
+{
+public:
+    void run() Q_DECL_OVERRIDE
+    {
+        qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
+        for (int i = 0; i < DataSize; ++i) {
+            freeBytes.acquire();
+            buffer[i % BufferSize] = "ACGT"[(int)qrand() % 4];
+            usedBytes.release();
+        }
+    }
+};
+//! [2]
+
+//! [3]
+class Consumer : public QThread
+//! [3] //! [4]
+{
+    Q_OBJECT
+public:
+    void run() Q_DECL_OVERRIDE
+    {
+        for (int i = 0; i < DataSize; ++i) {
+            usedBytes.acquire();
+            fprintf(stderr, "%c", buffer[i % BufferSize]);
+            freeBytes.release();
+        }
+        fprintf(stderr, "\n");
+    }
+
+signals:
+    void stringConsumed(const QString &text);
+
+protected:
+    bool finish;
+};
+//! [4]
+
+//! [5]
+int main(int argc, char *argv[])
+//! [5] //! [6]
+{
+    QCoreApplication app(argc, argv);
+    Producer producer;
+    Consumer consumer;
+    producer.start();
+    consumer.start();
+    producer.wait();
+    consumer.wait();
+    return 0;
+}
+//! [6]
+
+#include "semaphores.moc"
-- 
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