libcamera/libcamera.git - libcamera official repository

path: root/test/v4l2_subdevice/v4l2_subdevice_test.h

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * log_process.cpp - Logging in isolated child process test
 */

#include <fcntl.h>
#include <iostream>
#include <random>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <vector>

#include <libcamera/event_dispatcher.h>
#include <libcamera/logging.h>
#include <libcamera/timer.h>

#include "log.h"
#include "process.h"
#include "test.h"
#include "thread.h"
#include "utils.h"

using namespace std;
using namespace libcamera;

static const string message("hello from the child");

LOG_DEFINE_CATEGORY(LogProcessTest)

class LogProcessTestChild
{
public:
	int run(int status, int num)
	{
		usleep(50000);

		string logPath = "/tmp/libcamera.worker.test." +
				 to_string(num) + ".log";
		if (logSetFile(logPath.c_str()) < 0)
			return TestSkip;

		LOG(LogProcessTest, Warning) << message;

		return status;
	}
};

class LogProcessTest : public Test
{
protected:
	int init()
	{
		random_device random;
		num_ = random();
		logPath_ = "/tmp/libcamera.worker.test." +
			   to_string(num_) + ".log";

		proc_.finished.connect(this, &LogProcessTest::procFinished);
		return 0;
	}

	int run()
	{
		EventDispatcher *dispatcher = Thread::current()->eventDispatcher();
		Timer timeout;

		int exitCode = 42;
		vector<std::string> args;
		args.push_back(to_string(exitCode));
		args.push_back(to_string(num_));
		int ret = proc_.start("/proc/self/exe", args);
		if (ret) {
			cerr << "failed to start process" << endl;
			return TestFail;
		}

		timeout.start(200);
		while (timeout.isRunning())
			dispatcher->processEvents();

		if (exitStatus_ != Process::NormalExit) {
			cerr << "process did not exit normally" << endl;
			return TestFail;
		}


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