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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* object-invoke.cpp - Cross-thread Object method invocation test
*/
#include <chrono>
#include <iostream>
#include <thread>
#include <libcamera/camera_manager.h>
#include <libcamera/event_dispatcher.h>
#include <libcamera/object.h>
#include "thread.h"
#include "test.h"
using namespace std;
using namespace libcamera;
class InvokedObject : public Object
{
public:
enum Status {
NoCall,
InvalidThread,
CallReceived,
};
InvokedObject()
: status_(NoCall)
{
}
Status status() const { return status_; }
int value() const { return value_; }
void reset()
{
status_ = NoCall;
value_ = 0;
}
void method(int value)
{
if (Thread::current() != thread())
status_ = InvalidThread;
else
status_ = CallReceived;
value_ = value;
}
private:
Status status_;
int value_;
};
class ObjectInvokeTest : public Test
{
protected:
int run()
{
EventDispatcher *dispatcher = CameraManager::instance()->eventDispatcher();
InvokedObject object;
/*
* Test that method invocation in the same thread goes through
* the event dispatcher.
*/
object.invokeMethod(&InvokedObject::method, 42);
if (object.status() != InvokedObject::NoCall) {
cerr << "Method not invoked asynchronously" << endl;
return TestFail;
}
dispatcher->processEvents();
switch (object.status()) {
case InvokedObject::NoCall:
cout << "Method not invoked for main thread" << endl;
return TestFail;
case InvokedObject::InvalidThread:
cout << "Method invoked in incorrect thread for main thread" << endl;
return TestFail;
default:
break;
}
if (object.value() != 42) {
cout << "Method invoked with incorrect value for main thread" << endl;
return TestFail;
}
/*
* Move the object to a thread and verify that the method is
* delivered in the correct thread.
*/
object.reset();
object.moveToThread(&thread_);
thread_.start();
object.invokeMethod(&InvokedObject::method, 42);
this_thread::sleep_for(chrono::milliseconds(100));
switch (object.status()) {
case InvokedObject::NoCall:
cout << "Method not invoked for custom thread" << endl;
return TestFail;
case InvokedObject::InvalidThread:
cout << "Method invoked in incorrect thread for custom thread" << endl;
return TestFail;
default:
break;
}
if (object.value() != 42) {
cout << "Method invoked with incorrect value for custom thread" << endl;
return TestFail;
}
return TestPass;
}
void cleanup()
{
thread_.exit(0);
thread_.wait();
}
private:
Thread thread_;
};
TEST_REGISTER(ObjectInvokeTest)
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