2 * Cpumem-applet - status area plugin
7 #include <hildon/hildon.h>
8 #include <glib/gerror.h>
13 #include "cpumem_status_area_item.h"
15 #define LA_ICON_WIDTH 16
16 #define LA_ICON_HEIGHT 16
17 #define LA_BOX_WIDTH 5
18 #define LA_BOX_HEIGHT 3
23 #define CPUMEM_APPLET_STATUS_AREA_ITEM_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE (obj, CPUMEM_APPLET_TYPE_STATUS_AREA_ITEM, CpumemAppletStatusAreaItemPrivate))
25 struct _CpumemAppletStatusAreaItemPrivate {
27 gint lastU, lastN, lastIO, lastI;
28 guchar last_mem_level;
29 guchar last_cpu_level;
32 GdkPixbuf *pixbuf_red;
33 GdkPixbuf *pixbuf_off;
38 HD_DEFINE_PLUGIN_MODULE (CpumemAppletStatusAreaItem, cpumem_applet_status_area_item, HD_TYPE_STATUS_PLUGIN_ITEM);
42 * Read current MEM usage and return indicator between 5 and 1 - how many bars are "full"
45 la_check_mem (CpumemAppletStatusAreaItemPrivate *priv)
47 #define MEMFILE "/proc/meminfo"
48 #define MAX_READ_CHARS 128
49 char read_buffer[MAX_READ_CHARS];
57 //Open the memory info file and get current free memory
58 fin = fopen(MEMFILE, "r");
60 g_warning("Can't open "MEMFILE"\n");
63 while (fgets(read_buffer, MAX_READ_CHARS, fin) != NULL) {
64 if (strncmp(read_buffer, "MemTotal", 8) == 0) {
65 sscanf(read_buffer + 10, "%d", &mem_total);
66 } else if (strncmp(read_buffer, "MemFree", 6) == 0) {
67 sscanf(read_buffer + 9, "%d", &mem_free);
68 } else if (strncmp(read_buffer, "Buffers", 6) == 0) {
69 sscanf(read_buffer + 9, "%d", &mem_buffers);
70 } else if (strncmp(read_buffer, "Cached", 6) == 0) {
71 sscanf(read_buffer + 8, "%d", &mem_cached);
77 mem_used = mem_total - mem_free - mem_buffers - mem_cached;
79 if (mem_used > 0.9*mem_total)
81 else if (mem_used > 0.7*mem_total)
83 else if (mem_used > 0.5*mem_total)
85 else if (mem_used > 0.3*mem_total)
93 * Read current CPU usage and return indicator between 5 and 1 - how many bars are "full"
96 la_check_cpu (CpumemAppletStatusAreaItemPrivate *priv)
98 #define CPUFILE "/proc/stat"
99 gint curU, curN, curIO, curI;
100 gint deltaU, deltaN, deltaIO, deltaI;
102 GError *error = NULL;
107 if (!g_file_get_contents (CPUFILE, &contents, &lenght, &error)) {
108 fprintf (stderr, "ERR: can't read file %s: %s\n", CPUFILE, error->message);
109 g_error_free (error);
113 splits = g_strsplit_set (contents, " ", -1);
115 sscanf(splits[2], "%d", &curU);
116 sscanf(splits[3], "%d", &curN);
117 sscanf(splits[4], "%d", &curIO);
118 sscanf(splits[5], "%d", &curI);
123 idle = (curI - priv->lastI);
124 if (idle == 0) load = 100;
125 else load = 100-idle;
126 if (load>100) load = 0;
127 deltaU = curU - priv->lastU;
128 deltaN = curN - priv->lastN;
129 deltaIO = curIO - priv->lastIO;
130 deltaI = curI - priv->lastI;
133 priv->lastIO = curIO;
151 * Compose and blit the current status of memory bars
154 la_blit_memory_bars (const guchar level, CpumemAppletStatusAreaItemPrivate *priv)
158 gdk_pixbuf_fill(priv->pixbuf, 0x00000000);
163 gdk_pixbuf_composite(priv->pixbuf_on, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
166 gdk_pixbuf_composite(priv->pixbuf_on, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
169 gdk_pixbuf_composite(priv->pixbuf_on, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
172 gdk_pixbuf_composite(priv->pixbuf_on, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
174 gdk_pixbuf_composite(priv->pixbuf_off, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
179 * Compose and blit current status of CPU bars
182 la_blit_cpu_bars (const guchar level, CpumemAppletStatusAreaItemPrivate *priv)
190 if (priv->red == TRUE) {
191 gdk_pixbuf_composite(priv->pixbuf_red, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
194 gdk_pixbuf_composite(priv->pixbuf_on, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
200 gdk_pixbuf_composite(priv->pixbuf_on, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
203 gdk_pixbuf_composite(priv->pixbuf_on, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
206 gdk_pixbuf_composite(priv->pixbuf_on, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
208 gdk_pixbuf_composite(priv->pixbuf_off, priv->pixbuf, x, y, LA_BOX_WIDTH, LA_BOX_HEIGHT, x, y, 1, 1, GDK_INTERP_NEAREST, 255);
213 * Ran to check and update the CPU and memory reading
216 la_check_load (gpointer data)
218 guchar current_cpu_level;
219 guchar current_mem_level;
220 CpumemAppletStatusAreaItem *item = (CpumemAppletStatusAreaItem*)data;
221 CpumemAppletStatusAreaItemPrivate *priv = (CpumemAppletStatusAreaItemPrivate*)item->priv;
223 current_cpu_level = la_check_cpu(priv);
224 current_mem_level = la_check_mem(priv);
225 //g_debug(g_strdup_printf("LOADAPLET - UPDATED CPU %d MEM %d", current_cpu_level, current_mem_level));
227 //Update and blit only if data changed!
228 if ((current_mem_level != priv->last_mem_level) || (current_cpu_level != priv->last_cpu_level)) {
229 la_blit_memory_bars (current_mem_level, priv);
230 la_blit_cpu_bars (current_cpu_level, priv);
231 if (current_cpu_level == LA_CPU_MAX)
233 hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM(data), priv->pixbuf);
234 priv->last_mem_level = current_mem_level;
235 priv->last_cpu_level = current_cpu_level;
236 } else if (current_cpu_level == LA_CPU_MAX) {
237 //Pulsate max CPU load icon also when CPU load stays at max
238 la_blit_cpu_bars (current_cpu_level, priv);
239 hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM(data), priv->pixbuf);
246 * Get callback when display state changes
249 cpumem_applet_status_area_item_display_cb(osso_display_state_t state, gpointer user_data)
251 CpumemAppletStatusAreaItem *item = CPUMEM_APPLET_STATUS_AREA_ITEM(user_data);
253 g_return_if_fail (item != NULL && item->priv != NULL);
255 if (state == OSSO_DISPLAY_ON)
257 //Restart the updates, do one right away
258 if (item->priv->timeout_id == -1)
260 item->priv->timeout_id = gtk_timeout_add(1000, la_check_load, item);
263 //Suspend the updates - screen is off
264 if (g_source_remove(item->priv->timeout_id) != TRUE)
267 item->priv->timeout_id = -1;
273 /*****************************************************************************
275 * Boilerplate code area - do not enter
277 *****************************************************************************/
280 cpumem_applet_status_area_item_set_area_icon (CpumemAppletStatusAreaItem *item)
282 item->priv = CPUMEM_APPLET_STATUS_AREA_ITEM_GET_PRIVATE (item);
284 hd_status_plugin_item_set_status_area_icon (HD_STATUS_PLUGIN_ITEM(item), item->priv->pixbuf);
289 cpumem_applet_status_area_item_class_finalize (CpumemAppletStatusAreaItemClass *klass)
296 cpumem_applet_status_area_item_finalize (GObject *object)
298 CpumemAppletStatusAreaItemPrivate *priv = CPUMEM_APPLET_STATUS_AREA_ITEM(object)->priv;
299 // Release and clean our stuff
300 G_OBJECT_CLASS (cpumem_applet_status_area_item_parent_class)->finalize (object);
303 osso_deinitialize(priv->osso);
312 cpumem_applet_status_area_item_class_init (CpumemAppletStatusAreaItemClass *klass)
314 GObjectClass *object_class = G_OBJECT_CLASS (klass);
316 object_class->finalize = cpumem_applet_status_area_item_finalize;
318 g_type_class_add_private (klass, sizeof (CpumemAppletStatusAreaItemPrivate));
323 cpumem_applet_status_area_item_init (CpumemAppletStatusAreaItem *item)
325 item->priv = CPUMEM_APPLET_STATUS_AREA_ITEM_GET_PRIVATE (item);
327 item->priv->last_mem_level = -1;
328 item->priv->last_cpu_level = -1;
329 item->priv->timeout_id = -1;
330 item->priv->red = FALSE;
331 item->priv->pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, LA_ICON_WIDTH, LA_ICON_HEIGHT);
332 gdk_pixbuf_fill(item->priv->pixbuf, 0x00000000);
333 item->priv->pixbuf_on = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, LA_BOX_WIDTH, LA_BOX_HEIGHT);
334 gdk_pixbuf_fill(item->priv->pixbuf_on, 0xffffffff);
335 item->priv->pixbuf_red = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, LA_BOX_WIDTH, LA_BOX_HEIGHT);
336 gdk_pixbuf_fill(item->priv->pixbuf_red, 0xff0000ff);
337 item->priv->pixbuf_off = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, LA_BOX_WIDTH, LA_BOX_HEIGHT);
338 gdk_pixbuf_fill(item->priv->pixbuf_off, 0x777777ff);
339 cpumem_applet_status_area_item_set_area_icon(item);
341 item->priv->osso = osso_initialize ("cpumem_applet_status_area_item", "Maemo5", TRUE, NULL);
342 item->priv->timeout_id = gtk_timeout_add(1000, la_check_load, item);
343 osso_hw_set_display_event_cb (item->priv->osso, cpumem_applet_status_area_item_display_cb, item);