VILLASnode/common/include/villas/terminal.hpp

/* Terminal handling.
 *
 * Author: Steffen Vogel <post@steffenvogel.de>
 * SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 * SPDX-License-Identifier: Apache-2.0
 */

#pragma once

#include <cstdio>

#include <signal.h>
#include <sys/ioctl.h>

namespace villas {

class Terminal {

protected:
  struct winsize window; // Size of the terminal window.

  bool isTty;

  static class Terminal *current;

public:
  Terminal();

  // Signal handler for TIOCGWINSZ
  static void resize(int signal, siginfo_t *sinfo, void *ctx);

  static int getCols() {
    if (!current)
      current = new Terminal();

    return current->window.ws_col;
  }

  static int getRows() {
    if (!current)
      current = new Terminal();

    return current->window.ws_row;
  }
};

} // namespace villas