libcamera/libcamera.git - libcamera official repository

path: root/src/gstreamer/gstlibcamerasrc.cpp

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * signal-threads.cpp - Cross-thread signal delivery test
 */

#include <chrono>
#include <iostream>
#include <thread>

#include "libcamera/internal/message.h"
#include "libcamera/internal/thread.h"
#include "libcamera/internal/utils.h"

#include "test.h"

using namespace std;
using namespace libcamera;

class SignalReceiver : public Object
{
public:
	enum Status {
		NoSignal,
		InvalidThread,
		SignalReceived,
	};

	SignalReceiver()
		: status_(NoSignal)
	{
	}

	Status status() const { return status_; }
	int value() const { return value_; }
	void reset()
	{
		status_ = NoSignal;
		value_ = 0;
	}

	void slot(int value)
	{
		if (Thread::current() != thread())
			status_ = InvalidThread;
		else
			status_ = SignalReceived;

		value_ = value;
	}

private:
	Status status_;
	int value_;
};

class SignalThreadsTest : public Test
{
protected:
	int run()
	{
		SignalReceiver receiver;
		signal_.connect(&receiver, &SignalReceiver::slot);

		/* Test that a signal is received in the main thread. */
		signal_.emit(0);

		switch (receiver.status()) {
		case SignalReceiver::NoSignal:
			cout << "No signal received for direct connection" << endl;
			return TestFail;
		case SignalReceiver::InvalidThread:
			cout << "Signal received in incorrect thread "
				"for direct connection" << endl;
			return TestFail;
		default:
			break;
		}

		/*


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