evisum/src/ui.c

#include "system.h"
#include "process.h"
#include "disks.h"
#include "ui.h"
#include <stdio.h>
#include <sys/types.h>
#include <pwd.h>

#if defined(__APPLE__) && defined(__MACH__)
# define __MacOS__
#endif

static Eina_Lock _lock;

static results_t *_results = NULL;
static long _memory_total = 0;
static long _memory_used = 0;

static void _disk_view_update(Ui *ui);
static void _extra_view_update(Ui *ui, results_t *results);
static void _cpu_view_update(Ui *ui, results_t *results);
static void _memory_view_update(Ui *ui, results_t *results);

static void
_system_stats_thread(void *data, Ecore_Thread *thread)
{
   Ui *ui;
   int i;

   ui = data;

   while (1)
     {
        results_t *results = malloc(sizeof(results_t));
        system_stats_all_get(results);
        ecore_thread_feedback(thread, results);

        for (i = 0; i < ui->poll_delay * 2; i++)
          {
             if (ecore_thread_check(thread))
               return;

             usleep(500000);
          }
     }
}

static void
_system_stats_thread_feedback_cb(void *data, Ecore_Thread *thread, void *msg)
{
   Ui *ui;
   results_t *results;
   double cpu_usage = 0.0;
   int i;

   if (ecore_thread_check(thread))
     return;

   ui = data;
   results = msg;

   _cpu_view_update(ui, results);
   _memory_view_update(ui, results);
   _disk_view_update(ui);
   _extra_view_update(ui, results);

   for (i = 0; i < results->cpu_count; i++)
     {
        cpu_usage += results->cores[i]->percent;

        free(results->cores[i]);
     }

   cpu_usage = cpu_usage / results->cpu_count;

   _memory_total = results->memory.total >>= 10;
   _memory_used = results->memory.used >>= 10;

   elm_progressbar_value_set(ui->progress_cpu, (double) cpu_usage / 100);
   elm_progressbar_value_set(ui->progress_mem, (double)((results->memory.total / 100.0) * results->memory.used) / 1000000);

   free(results->cores);
   free(results);
}

static int
_sort_by_pid(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;

   inf1 = p1; inf2 = p2;

   return inf1->pid - inf2->pid;
}

static int
_sort_by_uid(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;

   inf1 = p1; inf2 = p2;

   return inf1->uid - inf2->uid;
}

static int
_sort_by_nice(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;

   inf1 = p1; inf2 = p2;

   return inf1->nice - inf2->nice;
}

static int
_sort_by_pri(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;

   inf1 = p1; inf2 = p2;

   return inf1->priority - inf2->priority;
}

static int
_sort_by_cpu(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;

   inf1 = p1; inf2 = p2;

   return inf1->cpu_id - inf2->cpu_id;
}

static int
_sort_by_threads(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;

   inf1 = p1; inf2 = p2;

   return inf1->numthreads - inf2->numthreads;
}

static int
_sort_by_size(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;
   int64_t size1, size2;

   inf1 = p1; inf2 = p2;

   size1 = inf1->mem_size;
   size2 = inf2->mem_size;

   if (size1 < size2)
     return -1;
   if (size2 > size1)
     return 1;

   return 0;
}

static int
_sort_by_rss(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;
   int64_t size1, size2;

   inf1 = p1; inf2 = p2;

   size1 = inf1->mem_rss;
   size2 = inf2->mem_rss;

   if (size1 < size2)
     return -1;
   if (size2 > size1)
     return 1;

   return 0;
}

static int
_sort_by_cpu_usage(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;
   double one, two;

   inf1 = p1; inf2 = p2;

   one = inf1->cpu_usage;
   two = inf2->cpu_usage;

   if (one < two)
     return -1;
   if (two > one)
     return 1;

   return 0;
}

static int
_sort_by_cmd(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;

   inf1 = p1; inf2 = p2;

   return strcasecmp(inf1->command, inf2->command);
}

static int
_sort_by_state(const void *p1, const void *p2)
{
   const Proc_Stats *inf1, *inf2;

   inf1 = p1; inf2 = p2;

   return strcmp(inf1->state, inf2->state);
}

static void
_fields_append(Ui *ui, Proc_Stats *proc)
{
   if (ui->program_pid == proc->pid)
     return;

   eina_strlcat(ui->fields[PROCESS_INFO_FIELD_PID], eina_slstr_printf("<link>%d</link> <br>", proc->pid), TEXT_FIELD_MAX);
   eina_strlcat(ui->fields[PROCESS_INFO_FIELD_UID], eina_slstr_printf("%d <br>", proc->uid), TEXT_FIELD_MAX);
   eina_strlcat(ui->fields[PROCESS_INFO_FIELD_SIZE], eina_slstr_printf("%lld K<br>", proc->mem_size >> 10), TEXT_FIELD_MAX);
   eina_strlcat(ui->fields[PROCESS_INFO_FIELD_RSS], eina_slstr_printf("%lld K<br>", proc->mem_rss >> 10), TEXT_FIELD_MAX);
   eina_strlcat(ui->fields[PROCESS_INFO_FIELD_COMMAND], eina_slstr_printf("%s<br>", proc->command), TEXT_FIELD_MAX);
   eina_strlcat(ui->fields[PROCESS_INFO_FIELD_STATE], eina_slstr_printf("%s <br>", proc->state), TEXT_FIELD_MAX);
   eina_strlcat(ui->fields[PROCESS_INFO_FIELD_CPU_USAGE], eina_slstr_printf("%.1f%% <br>", proc->cpu_usage), TEXT_FIELD_MAX);
}

static void
_fields_show(Ui *ui)
{
   elm_object_text_set(ui->entry_pid, ui->fields[PROCESS_INFO_FIELD_PID]);
   elm_object_text_set(ui->entry_uid, ui->fields[PROCESS_INFO_FIELD_UID]);
   elm_object_text_set(ui->entry_size, ui->fields[PROCESS_INFO_FIELD_SIZE]);
   elm_object_text_set(ui->entry_rss, ui->fields[PROCESS_INFO_FIELD_RSS]);
   elm_object_text_set(ui->entry_cmd, ui->fields[PROCESS_INFO_FIELD_COMMAND]);
   elm_object_text_set(ui->entry_state, ui->fields[PROCESS_INFO_FIELD_STATE]);
   elm_object_text_set(ui->entry_cpu_usage, ui->fields[PROCESS_INFO_FIELD_CPU_USAGE]);
}

static void
_fields_clear(Ui *ui)
{
   for (int i = 0; i < PROCESS_INFO_FIELDS; i++)
     {
        ui->fields[i][0] = '\0';
     }
}

static void
_fields_free(Ui *ui)
{
   for (int i = 0; i < PROCESS_INFO_FIELDS; i++)
     {
        free(ui->fields[i]);
     }
}

static Eina_List *
_list_sort(Ui *ui, Eina_List *list)
{
   switch (ui->sort_type)
     {
      case SORT_BY_NONE:
      case SORT_BY_PID:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_pid);
        break;

      case SORT_BY_UID:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_uid);
        break;

      case SORT_BY_NICE:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_nice);
        break;

      case SORT_BY_PRI:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_pri);
        break;

      case SORT_BY_CPU:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_cpu);
        break;

      case SORT_BY_THREADS:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_threads);
        break;

      case SORT_BY_SIZE:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_size);
        break;

      case SORT_BY_RSS:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_rss);
        break;

      case SORT_BY_CMD:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_cmd);
        break;

      case SORT_BY_STATE:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_state);
        break;

      case SORT_BY_CPU_USAGE:
        list = eina_list_sort(list, eina_list_count(list), _sort_by_cpu_usage);
        break;
     }

   if (ui->sort_reverse)
     list = eina_list_reverse(list);

   return list;
}

static void
_system_process_list_feedback_cb(void *data, Ecore_Thread *thread EINA_UNUSED, void *msg EINA_UNUSED)
{
   Ui *ui;
   Eina_List *list, *l;
   Proc_Stats *proc;

   eina_lock_take(&_lock);

   ui = data;

   list = proc_info_all_get();

   EINA_LIST_FOREACH (list, l, proc)
     {
        int64_t time_prev = ui->cpu_times[proc->pid];
        proc->cpu_usage = 0;
        if (!ui->first_run && proc->cpu_time > time_prev)
          {
             proc->cpu_usage = (double) (proc->cpu_time - time_prev) / ui->poll_delay;
          }
     }

   list = _list_sort(ui, list);

   EINA_LIST_FREE (list, proc)
     {
        _fields_append(ui, proc);
        ui->first_run = EINA_FALSE;
        ui->cpu_times[proc->pid] = proc->cpu_time;

        free(proc);
     }

   if (list)
     eina_list_free(list);

   _fields_show(ui);
   _fields_clear(ui);

   eina_lock_release(&_lock);
}

static void
_system_process_list_update(Ui *ui)
{
   _system_process_list_feedback_cb(ui, NULL, NULL);
}

static void
_system_process_list(void *data, Ecore_Thread *thread)
{
   Ui *ui;
   int i;

   ui = data;

   while (1)
     {
        ecore_thread_feedback(thread, ui);
        for (i = 0; i < ui->poll_delay * 2; i++)
          {
             if (ecore_thread_check(thread))
               return;
             usleep(500000);
          }
     }
}

static void
_thread_end_cb(void *data EINA_UNUSED, Ecore_Thread *thread)
{
   thread = NULL;
}

static void
_thread_error_cb(void *data EINA_UNUSED, Ecore_Thread *thread)
{
   thread = NULL;
}

static char *
_progress_mem_format_cb(double val)
{
   char buf[1024];

   snprintf(buf, sizeof(buf), "%ld M out of %ld M", _memory_used, _memory_total);

   return strdup(buf);
}

static void
_progress_mem_format_free_cb(char *str)
{
   if (str)
     free(str);
}

static void
_btn_icon_state_set(Evas_Object *button, Eina_Bool reverse)
{
   Evas_Object *icon = elm_icon_add(button);
   if (reverse)
     elm_icon_standard_set(icon, "go-down");
   else
     elm_icon_standard_set(icon, "go-up");

   elm_object_part_content_set(button, "icon", icon);
   evas_object_show(icon);
}

static void
_btn_pid_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->sort_type == SORT_BY_PID)
     ui->sort_reverse = !ui->sort_reverse;

   _btn_icon_state_set(ui->btn_pid, ui->sort_reverse);

   ui->sort_type = SORT_BY_PID;

   _system_process_list_update(ui);

   elm_scroller_page_bring_in(ui->scroller, 0, 0);
}

static void
_btn_uid_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->sort_type == SORT_BY_UID)
     ui->sort_reverse = !ui->sort_reverse;

   _btn_icon_state_set(ui->btn_uid, ui->sort_reverse);

   ui->sort_type = SORT_BY_UID;

   _system_process_list_update(ui);

   elm_scroller_page_bring_in(ui->scroller, 0, 0);
}


static void
_btn_cpu_usage_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->sort_type == SORT_BY_CPU_USAGE)
     ui->sort_reverse = !ui->sort_reverse;

   _btn_icon_state_set(ui->btn_cpu_usage, ui->sort_reverse);

   ui->sort_type = SORT_BY_CPU_USAGE;

   _system_process_list_update(ui);

   elm_scroller_page_bring_in(ui->scroller, 0, 0);
}

static void
_btn_size_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->sort_type == SORT_BY_SIZE)
     ui->sort_reverse = !ui->sort_reverse;

   _btn_icon_state_set(ui->btn_size, ui->sort_reverse);

   ui->sort_type = SORT_BY_SIZE;

   _system_process_list_update(ui);

   elm_scroller_page_bring_in(ui->scroller, 0, 0);
}

static void
_btn_rss_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->sort_type == SORT_BY_RSS)
     ui->sort_reverse = !ui->sort_reverse;

   _btn_icon_state_set(ui->btn_rss, ui->sort_reverse);

   ui->sort_type = SORT_BY_RSS;

   _system_process_list_update(ui);

   elm_scroller_page_bring_in(ui->scroller, 0, 0);
}

static void
_btn_cmd_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->sort_type == SORT_BY_CMD)
     ui->sort_reverse = !ui->sort_reverse;

   _btn_icon_state_set(ui->btn_cmd, ui->sort_reverse);

   ui->sort_type = SORT_BY_CMD;

   _system_process_list_update(ui);

   elm_scroller_page_bring_in(ui->scroller, 0, 0);
}

static void
_btn_state_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->sort_type == SORT_BY_STATE)
     ui->sort_reverse = !ui->sort_reverse;

   _btn_icon_state_set(ui->btn_state, ui->sort_reverse);

   ui->sort_type = SORT_BY_STATE;

   _system_process_list_update(ui);

   elm_scroller_page_bring_in(ui->scroller, 0, 0);
}

static void
_btn_quit_clicked_cb(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   ecore_main_loop_quit();

   elm_exit();
}

static void
_btn_about_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui;
   Evas_Object *win;

   ui = data;
   win = ui->win;

   printf("(c) Copyright 2018. Alastair Poole <netstar@gmail.com>\n");
}

static void
_list_item_del_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   pid_t *pid = data;

   free(pid);
}

static void
_process_panel_pids_update(Ui *ui)
{
   Proc_Stats *proc;
   Elm_Widget_Item *item;
   Eina_List *list;
   pid_t *pid;
   char buf[64];

   if (!ui->panel_visible)
     return;

   list = proc_info_all_get();
   list = eina_list_sort(list, eina_list_count(list), _sort_by_pid);

   elm_list_clear(ui->list_pid);

   EINA_LIST_FREE(list, proc)
     {
        snprintf(buf, sizeof(buf), "%d", proc->pid);

        pid = malloc(sizeof(pid_t));
        *pid = proc->pid;

        item = elm_list_item_append(ui->list_pid, buf, NULL, NULL, NULL, pid);
        elm_object_item_del_cb_set(item, _list_item_del_cb);

        free(proc);
     }

   elm_list_go(ui->list_pid);

   if (list)
     eina_list_free(list);
}

static Eina_Bool
_process_panel_update(void *data)
{
   Ui *ui;
   const Eina_List *l, *list;
   Elm_Widget_Item *it;
   struct passwd *pwd_entry;
   Proc_Stats *proc;
   double cpu_usage = 0.0;

   ui = data;

   proc = proc_info_by_pid(ui->selected_pid);
   if (!proc)
     {
        _process_panel_pids_update(ui);

        return ECORE_CALLBACK_CANCEL;
     }

   list = elm_list_items_get(ui->list_pid);
   EINA_LIST_FOREACH(list, l, it)
     {
         pid_t *pid = elm_object_item_data_get(it);
         if (pid && *pid == ui->selected_pid)
           {
              elm_list_item_selected_set(it, EINA_TRUE);
              elm_list_item_bring_in(it);
              break;
           }
     }

   elm_object_text_set(ui->entry_pid_cmd, proc->command);

   pwd_entry = getpwuid(proc->uid);
   if (pwd_entry)
     elm_object_text_set(ui->entry_pid_user, pwd_entry->pw_name);

   elm_object_text_set(ui->entry_pid_pid, eina_slstr_printf("%d", proc->pid));
   elm_object_text_set(ui->entry_pid_uid, eina_slstr_printf("%d", proc->uid));
   elm_object_text_set(ui->entry_pid_cpu, eina_slstr_printf("%d", proc->cpu_id));
   elm_object_text_set(ui->entry_pid_threads, eina_slstr_printf("%d", proc->numthreads));
   elm_object_text_set(ui->entry_pid_size, eina_slstr_printf("%lld bytes", proc->mem_size));
   elm_object_text_set(ui->entry_pid_rss, eina_slstr_printf("%lld bytes", proc->mem_rss));
   elm_object_text_set(ui->entry_pid_nice, eina_slstr_printf("%d", proc->nice));
   elm_object_text_set(ui->entry_pid_pri, eina_slstr_printf("%d", proc->priority));
   elm_object_text_set(ui->entry_pid_state, proc->state);

   if (proc->cpu_time > ui->pid_cpu_time)
     {
        cpu_usage = (double) (proc->cpu_time - ui->pid_cpu_time) / ui->poll_delay;
     }

   ui->pid_cpu_time = proc->cpu_time;
   elm_object_text_set(ui->entry_pid_cpu_usage, eina_slstr_printf("%.1f%%", cpu_usage));

   free(proc);

   return ECORE_CALLBACK_RENEW;
}

static void
_process_panel_list_selected_cb(void *data, Evas_Object *obj, void *event_info EINA_UNUSED)
{
   Elm_Object_Item *it;
   Ui *ui;
   const char *text;

   ui = data;

   it = elm_list_selected_item_get(obj);

   text = elm_object_item_text_get(it);

   if (ui->timer_pid)
     {
        ecore_timer_del(ui->timer_pid);
        ui->timer_pid = NULL;
     }

   ui->selected_pid = atoi(text);

   ui->pid_cpu_time = 0;

   _process_panel_update(ui);

   ui->timer_pid = ecore_timer_add(ui->poll_delay, _process_panel_update, ui);

   elm_scroller_page_bring_in(ui->scroller, 0, 0);
}

static void
_panel_scrolled_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   ui->panel_visible = !ui->panel_visible;
}

static void
_btn_start_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->selected_pid == -1)
     return;

   kill(ui->selected_pid, SIGCONT);
}

static void
_btn_stop_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->selected_pid == -1)
     return;

   kill(ui->selected_pid, SIGSTOP);
}

static void
_btn_kill_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui = data;

   if (ui->selected_pid == -1)
     return;

   kill(ui->selected_pid, SIGKILL);
}

static void
_entry_pid_clicked_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Ui *ui;
   Evas_Object *textblock;
   Evas_Textblock_Cursor *pos;
   const char *text;
   char *pid_text, *start, *end;

   ui = data;

   textblock = elm_entry_textblock_get(obj);
   if (!textblock)
     return;

   pos = evas_object_textblock_cursor_get(textblock);
   if (!pos)
     return;

   text = evas_textblock_cursor_paragraph_text_get(pos);
   if (!text)
     return;

   pid_text = strdup(text);

   start = strchr(pid_text, '>') + 1;
   if (start)
     {
        end = strchr(start, '<');
        if (end)
          *end = '\0';
     }
   else
     {
        free(pid_text);
        return;
     }

   ui->selected_pid = atol(start);

   free(pid_text);

   _process_panel_update(ui);

   if (ui->timer_pid)
     {
        ecore_timer_del(ui->timer_pid);
        ui->timer_pid = NULL;
     }

   ui->timer_pid = ecore_timer_add(ui->poll_delay, _process_panel_update, ui);

   elm_panel_toggle(ui->panel);
   ui->panel_visible = EINA_TRUE;
}

static unsigned long _disk_used = 0, _disk_total = 0;

static char *
_progress_disk_format_cb(double val)
{
   char buf[1024];

   snprintf(buf, sizeof(buf), "%luM of %luM", _disk_used, _disk_total);

   return strdup(buf);
}

static void
_progress_disk_format_free_cb(char *str)
{
   if (str)
     free(str);
}

static void
_ui_disk_add(Ui *ui, const char *path, const char *mount, unsigned long total, unsigned long used)
{
   Evas_Object *frame, *progress;
   double ratio, value;

   frame = elm_frame_add(ui->disk_activity);
   evas_object_size_hint_align_set(frame, EVAS_HINT_FILL, 0);
   evas_object_size_hint_weight_set(frame, EVAS_HINT_EXPAND, 0);
   elm_object_text_set(frame, eina_slstr_printf("%s on %s", path, mount));
   evas_object_show(frame);

   progress = elm_progressbar_add(frame);
   evas_object_size_hint_align_set(progress, EVAS_HINT_FILL, EVAS_HINT_FILL);
   evas_object_size_hint_weight_set(progress, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   elm_progressbar_span_size_set(progress, 1.0);
   elm_progressbar_unit_format_set(progress, "");
   elm_progressbar_unit_format_function_set(progress, _progress_disk_format_cb, _progress_disk_format_free_cb);

   elm_object_content_set(frame, progress);

   _disk_used = used;
   _disk_total = total;

   ratio = total / 100.0;
   value = used / ratio;

   if (used == 0 && total == 0)
     elm_progressbar_value_set(progress, 1.0);
   else
     elm_progressbar_value_set(progress, value / 100.0);

   evas_object_show(progress);

   elm_box_pack_end(ui->disk_activity, frame);
}

static void
_disk_view_update(Ui *ui)
{
   Eina_List *disks;
   char *path;
   unsigned long total, used;

   if (!ui->disk_visible)
     return;

   elm_box_clear(ui->disk_activity);

   disks = disks_get();
   EINA_LIST_FREE(disks, path)
     {
        char *mount = disk_mount_point_get(path);
        if (mount)
          {
             if (disk_usage_get(mount, &total, &used))
               {
                  total >>= 20; used >>= 20;
                  _ui_disk_add(ui, path, mount, total,  used);
               }
             free(mount);
          }

        free(path);
     }
   if (disks)
     free(disks);
}

static char *
_progress_incoming_format_cb(double val)
{
   char buf[1024];
   double incoming;
   const char *unit = "B/s";

   incoming = _results->incoming;
   if (incoming > 1048576)
     {
       incoming /= 1048576;
       unit = "MB/s";
     }
   else if (incoming  > 1024 && incoming < 1048576)
     {
        incoming /= 1024;
        unit = "KB/s";
     }

   snprintf(buf, sizeof(buf), "%.2f %s", incoming, unit);

   return strdup(buf);
}

static void
_progress_incoming_format_free_cb(char *str)
{
   if (str)
     free(str);
}

static char *
_progress_outgoing_format_cb(double val)
{
   char buf[1024];
   double outgoing;
   const char *unit = "B/s";

   outgoing = _results->outgoing;
   if (outgoing > 1048576)
     {
       outgoing /= 1048576;
       unit = "MB/s";
     }
   else if (outgoing > 1024 && outgoing < 1048576)
     {
        outgoing /= 1024;
        unit = "KB/s";
     }

   snprintf(buf, sizeof(buf), "%.2f %s", outgoing, unit);

   return strdup(buf);
}

static void
_progress_outgoing_format_free_cb(char *str)
{
   if (str)
     free(str);
}

static void
_cpu_view_update(Ui *ui, results_t *results)
{
   Evas_Object *box, *frame, *progress;
   int i;

   if (!ui->cpu_visible)
     return;

   elm_box_clear(ui->cpu_activity);

   box = elm_box_add(ui->content);
   evas_object_size_hint_align_set(box, EVAS_HINT_FILL, EVAS_HINT_FILL);
   evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   evas_object_show(box);

   for (i = 0; i < results->cpu_count; i++)
     {
        frame = elm_frame_add(box);
        evas_object_size_hint_align_set(frame, EVAS_HINT_FILL, 0);
        evas_object_size_hint_weight_set(frame, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
        if (i == 0 && results->temperature != INVALID_TEMP)
          elm_object_text_set(frame, eina_slstr_printf("CPU %d (%d °C)", i, results->temperature));
        else
          elm_object_text_set(frame, eina_slstr_printf("CPU %d", i));

        evas_object_show(frame);

        progress = elm_progressbar_add(frame);
        evas_object_size_hint_align_set(progress, EVAS_HINT_FILL, EVAS_HINT_FILL);
        evas_object_size_hint_weight_set(progress, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
        elm_progressbar_span_size_set(progress, 1.0);
        elm_progressbar_unit_format_set(progress, "%1.2f%%");

        elm_progressbar_value_set(progress, results->cores[i]->percent / 100);
        evas_object_show(progress);
        elm_object_content_set(frame, progress);
        elm_box_pack_end(box, frame);
     }

   elm_box_pack_end(ui->cpu_activity, box);
}

static void
_memory_view_update(Ui *ui, results_t *results)
{
   Evas_Object *box, *frame, *progress;
   double ratio, value;

   if (!ui->mem_visible)
     return;

   elm_box_clear(ui->mem_activity);

   box = elm_box_add(ui->content);
   evas_object_size_hint_align_set(box, EVAS_HINT_FILL, EVAS_HINT_FILL);
   evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   evas_object_show(box);

   frame = elm_frame_add(box);
   evas_object_size_hint_align_set(frame, EVAS_HINT_FILL, 0);
   evas_object_size_hint_weight_set(frame, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   elm_object_text_set(frame, "Memory Used");
   evas_object_show(frame);
   progress = elm_progressbar_add(frame);
   evas_object_size_hint_align_set(progress, EVAS_HINT_FILL, EVAS_HINT_FILL);
   evas_object_size_hint_weight_set(progress, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   elm_progressbar_span_size_set(progress, 1.0);
   elm_progressbar_unit_format_set(progress, eina_slstr_printf("%lu M / %lu M", results->memory.used, results->memory.total));
   ratio = results->memory.total / 100.0;
   value = results->memory.used / ratio;
   elm_progressbar_value_set(progress, value / 100);
   evas_object_show(progress);
   elm_object_content_set(frame, progress);
   elm_box_pack_end(box, frame);

   frame = elm_frame_add(box);
   evas_object_size_hint_align_set(frame, EVAS_HINT_FILL, 0);
   evas_object_size_hint_weight_set(frame, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
   elm_object_text_set(frame, "Memory Cached");
   evas_object_show(frame);
   progress = elm_progressbar_add(frame);
   evas_object_size_hint_align_set(progress, EVAS_HINT_FILL, EVAS_HINT_FILL);
   evas_object_size_hint_weight_set(progress, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND)