statusbar

stmemory.c (1840B) - View raw

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/* Copyright (C) 2025 awy <awy@awy.one>

   This file is part of stbar.

   stbar is free software: you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation,
   either version 3 of the License, or (at your option) any later version.

   stbar is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public
   License along with stbar. If not, see
   <https://www.gnu.org/licenses/>. */

#include <stdio.h>
#include <stdlib.h>

#include "../lib/util.h"

static void buttonhandler(void)
{
  char *term;
  char *env;
  int button;

  button = 0;
  if ((env = getenv("BLOCK_BUTTON")))
    button = getbtnint(env);

  if (!(term = getenv("TERMINAL")))
    term = "footclient";

  const char *termcmd[] = {term, "-e", "btop", NULL};

  switch (button) {
  case 1:
    break;
  case 2:
    spawn(termcmd);
    break;
  case 3:
    sendnotif("stmemory", "󰍛 Memory module",
              "- Shows Memory Used.\n- Click to show memory hogs.\n\
- Middle click to open btop.");
    break;
  default:
    break;
  }
}

int stmemory(void)
{
  FILE *fp;
  char line[256];
  long total, free;
  double totalf, freef;

  buttonhandler();

  if (!(fp = fopen("/proc/meminfo", "r")))
    die("failed to open: /proc/meminfo");

  fgets(line, sizeof(line), fp);
  sscanf(line + 9, "%ld", &total);

  fgets(line, sizeof(line), fp);
  fgets(line, sizeof(line), fp);
  sscanf(line + 13, "%ld", &free);

  totalf = total / (1024.0 * 1024.0);
  freef = free / (1024.0 * 1024.0);

  printf("%.2fGiB\n", (totalf - freef));
  fclose(fp);

  return 0;
}