/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <LibCore/File.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>

int main(int argc, char** argv)
{
    (void)argc;
    (void)argv;

    printf("PID TPG PGP SID UID  STATE        PPID NSCHED     FDS TTY   NAME\n");

    auto all_processes = Core::ProcessStatisticsReader::get_all();

    for (const auto& it : all_processes) {
        const auto& proc = it.value;
        auto tty = proc.tty;

        if (tty.starts_with("/dev/"))
            tty = tty.characters() + 5;
        else
            tty = "n/a";

        printf("%-3u %-3u %-3u %-3u %-3u  %-11s  %-3u  %-9u  %-3u %-5s %s\n",
            proc.pid,
            proc.pgid,
            proc.pgp,
            proc.sid,
            proc.uid,
            proc.threads.first().state.characters(),
            proc.ppid,
            proc.threads.first().times_scheduled,
            proc.nfds,
            tty.characters(),
            proc.name.characters());
    }

    return 0;
}