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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef MOCKCOMPOSITOR_CORECOMPOSITOR_H
#define MOCKCOMPOSITOR_CORECOMPOSITOR_H
#include <QtTest/QtTest>
#include <wayland-server-core.h>
struct wl_resource;
namespace MockCompositor {
class Global : public QObject
{
Q_OBJECT
public:
virtual bool isClean() { return true; }
virtual QString dirtyMessage() { return isClean() ? "clean" : "dirty"; }
};
class CoreCompositor
{
public:
explicit CoreCompositor();
~CoreCompositor();
bool isClean();
QString dirtyMessage();
void dispatch();
template<typename function_type, typename... arg_types>
auto exec(function_type func, arg_types&&... args) -> decltype(func())
{
Lock lock(this);
return func(std::forward<arg_types>(args)...);
}
template<typename function_type, typename... arg_types>
auto call(function_type func, arg_types&&... args) -> decltype(func())
{
Lock lock(this);
auto boundFunc = std::bind(func, this);
return boundFunc(this, std::forward<arg_types>(args)...);
}
// Unsafe section below, YOU are responsible that the compositor is locked or
// this is run through the mutex() method!
void add(Global *global);
void remove(Global *global);
/*!
* \brief Constructs and adds a new global with the given parameters
*
* Convenience function. i.e.
*
* compositor->add(new MyGlobal(compositor, version);
*
* can be written as:
*
* compositor->add<MyGlobal>(version);
*
* Returns the new global
*/
template<typename global_type, typename... arg_types>
global_type *add(arg_types&&... args)
{
warnIfNotLockedByThread(Q_FUNC_INFO);
auto *global = new global_type(this, std::forward<arg_types>(args)...);
m_globals.append(global);
return global;
}
/*!
* \brief Removes all globals of the given type
*
* Convenience function
*/
template<typename global_type, typename... arg_types>
void removeAll()
{
const auto globals = getAll<global_type>();
for (auto global : globals)
remove(global);
}
/*!
* \brief Returns a global with the given type, if any
*/
template<typename global_type>
global_type *get()
{
warnIfNotLockedByThread(Q_FUNC_INFO);
for (auto *global : qAsConst(m_globals)) {
if (auto *casted = qobject_cast<global_type *>(global))
return casted;
}
return nullptr;
}
/*!
* \brief Returns the nth global with the given type, if any
*/
template<typename global_type>
global_type *get(int index)
{
warnIfNotLockedByThread(Q_FUNC_INFO);
for (auto *global : qAsConst(m_globals)) {
if (auto *casted = qobject_cast<global_type *>(global)) {
if (index--)
continue;
return casted;
}
}
return nullptr;
}
/*!
* \brief Returns all globals with the given type, if any
*/
template<typename global_type>
QVector<global_type *> getAll()
{
warnIfNotLockedByThread(Q_FUNC_INFO);
QVector<global_type *> matching;
for (auto *global : qAsConst(m_globals)) {
if (auto *casted = qobject_cast<global_type *>(global))
matching.append(casted);
}
return matching;
}
uint nextSerial();
uint currentTimeMilliseconds();
wl_client *client(int index = 0);
void warnIfNotLockedByThread(const char* caller = "warnIfNotLockedbyThread");
public:
// Only use this carefully from the test thread (i.e. lock first)
wl_display *m_display = nullptr;
protected:
class Lock {
public:
explicit Lock(CoreCompositor *compositor)
: m_compositor(compositor)
, m_threadId(std::this_thread::get_id())
{
// Can't use a QMutexLocker here, as it's not movable
compositor->m_mutex.lock();
Q_ASSERT(compositor->m_lock == nullptr);
compositor->m_lock = this;
}
~Lock()
{
Q_ASSERT(m_compositor->m_lock == this);
m_compositor->m_lock = nullptr;
m_compositor->m_mutex.unlock();
}
// Move semantics
Lock(Lock &&) = default;
Lock &operator=(Lock &&) = default;
// Disable copying
Lock(const Lock &) = delete;
Lock &operator=(const Lock &) = delete;
bool isOwnedByCurrentThread() const { return m_threadId == std::this_thread::get_id(); }
private:
CoreCompositor *m_compositor = nullptr;
std::thread::id m_threadId;
};
QByteArray m_socketName;
wl_event_loop *m_eventLoop = nullptr;
bool m_running = true;
QVector<Global *> m_globals;
QElapsedTimer m_timer;
private:
Lock *m_lock = nullptr;
QMutex m_mutex;
std::thread m_dispatchThread;
};
template<typename container_type>
QByteArray toByteArray(container_type container)
{
return QByteArray(reinterpret_cast<const char *>(container.data()), sizeof (container[0]) * container.size());
}
template<typename return_type>
return_type *fromResource(::wl_resource *resource) {
if (auto *r = return_type::Resource::fromResource(resource))
return static_cast<return_type *>(r->object());
return nullptr;
}
} // namespace MockCompositor
#endif // MOCKCOMPOSITOR_CORECOMPOSITOR_H
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