src/user/meminfo/meminfo.cpp


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#include <raleigh/w/padding.h>
#include <raleigh/w/vbox.h>
#include <raleigh/w/label.h>

#include <raleigh/runtime.h>
#include <raleigh/window.h>

#include <pland/syscall.h>
#include <knob/format.h>
#include <pland/pcrt.h>

using namespace raleigh;

label *kmem;
label *umem;

void refresh(window_tag_t) {
  char *const kstr = format("kernel memory free: %uk", _kernel_dynamic_area_left() * 4);
  char *const ustr = format("userspace memory free: %uk / %uk", _total_userspace_left() * 4, _total_userspace_size() * 4);

  kmem->change_value(kstr);
  umem->change_value(ustr);

  free_block(kstr);
  free_block(ustr);
}

void main() {
  kmem = new label("");
  umem = new label("");
  label msg("press Alt+F4 to quit, or F5 to refresh");

  padding pkmem(*kmem, 1);
  padding pumem(*umem, 1);
  padding pmsg(msg, 1);

  dllist<widget &> ll;
  ll.add_front(pmsg);
  ll.add_front(pumem);
  ll.add_front(pkmem);
  vbox box(ll);

  padding pbox(box, 3);
  window w(pbox);
  w.add_keybind((struct key_packet){.key_id = key_packet::KEY_F5, .modifiers = key_packet::NO_MODS}, &refresh);

  refresh(0);

  w.show();
  start_runtime();
}