1 files changed, 176 insertions, 0 deletions
diff --git a/tests/auto/qmlls/qlanguageserver/qiopipe.cpp b/tests/auto/qmlls/qlanguageserver/qiopipe.cpp
new file mode 100644
index 0000000000..de6d37a02f
--- /dev/null
+++ b/tests/auto/qmlls/qlanguageserver/qiopipe.cpp
@@ -0,0 +1,176 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qiopipe.h"
+
+#include <QtCore/private/qobject_p.h>
+#include <QtCore/qpointer.h>
+
+#include <QDebug>
+
+#include <memory>
+
+QT_BEGIN_NAMESPACE
+
+class QPipeEndPoint : public QIODevice
+{
+    Q_OBJECT
+
+public:
+    bool isSequential() const override;
+    qint64 bytesAvailable() const override;
+
+    void setRemoteEndPoint(QPipeEndPoint *other);
+
+protected:
+    qint64 readData(char *data, qint64 maxlen) override;
+    qint64 writeData(const char *data, qint64 len) override;
+
+private:
+    QByteArray m_buffer;
+    QPointer<QPipeEndPoint> m_remoteEndPoint;
+};
+
+class QIOPipePrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QIOPipe)
+public:
+    QIOPipePrivate();
+    ~QIOPipePrivate() final;
+
+    std::unique_ptr<QPipeEndPoint> end1;
+    std::unique_ptr<QPipeEndPoint> end2;
+};
+
+QIOPipe::QIOPipe(QObject *parent) : QObject(*(new QIOPipePrivate()), parent) { }
+
+bool QIOPipe::open(QIODevice::OpenMode mode)
+{
+    Q_D(QIOPipe);
+
+    if (!d->end1->open(mode))
+        return false;
+    switch (mode & QIODevice::ReadWrite) {
+    case QIODevice::WriteOnly:
+    case QIODevice::ReadOnly:
+        return d->end2->open(mode ^ QIODevice::ReadWrite);
+    default:
+        return d->end2->open(mode);
+    }
+}
+
+QIODevice *QIOPipe::end1() const
+{
+    Q_D(const QIOPipe);
+    return d->end1.get();
+}
+
+QIODevice *QIOPipe::end2() const
+{
+    Q_D(const QIOPipe);
+    return d->end2.get();
+}
+
+QIOPipePrivate::QIOPipePrivate()
+    : end1(std::make_unique<QPipeEndPoint>()), end2(std::make_unique<QPipeEndPoint>())
+{
+    end1->setRemoteEndPoint(end2.get());
+    end2->setRemoteEndPoint(end1.get());
+}
+
+QIOPipePrivate::~QIOPipePrivate() { }
+
+bool QPipeEndPoint::isSequential() const
+{
+    return true;
+}
+
+qint64 QPipeEndPoint::bytesAvailable() const
+{
+    return m_buffer.length() + QIODevice::bytesAvailable();
+}
+
+void QPipeEndPoint::setRemoteEndPoint(QPipeEndPoint *other)
+{
+    m_remoteEndPoint = other;
+}
+
+qint64 QPipeEndPoint::readData(char *data, qint64 maxlen)
+{
+    maxlen = qMin(maxlen, static_cast<qint64>(m_buffer.length()));
+    if (maxlen <= 0)
+        return 0;
+
+    Q_ASSERT(maxlen > 0);
+    Q_ASSERT(maxlen <= std::numeric_limits<int>::max());
+    memcpy(data, m_buffer.data(), static_cast<size_t>(maxlen));
+    m_buffer = m_buffer.mid(static_cast<int>(maxlen));
+    return maxlen;
+}
+
+qint64 QPipeEndPoint::writeData(const char *data, qint64 len)
+{
+    if (!m_remoteEndPoint)
+        return -1;
+
+    if (len <= 0)
+        return 0;
+
+    QByteArray &buffer = m_remoteEndPoint->m_buffer;
+    const qint64 prevLen = buffer.length();
+    Q_ASSERT(prevLen >= 0);
+    len = qMin(len, std::numeric_limits<int>::max() - prevLen);
+
+    if (len == 0)
+        return 0;
+
+    Q_ASSERT(len > 0);
+    Q_ASSERT(prevLen + len > 0);
+    Q_ASSERT(prevLen + len <= std::numeric_limits<int>::max());
+
+    buffer.resize(static_cast<int>(prevLen + len));
+    memcpy(buffer.data() + prevLen, data, static_cast<size_t>(len));
+    emit bytesWritten(len);
+    emit m_remoteEndPoint->readyRead();
+    return len;
+}
+
+QT_END_NAMESPACE
+
+#include <qiopipe.moc>