@@ -3,7 +3,7 @@ SUBDIRS = tint2conf
 endif
 
 AM_CFLAGS += @PANGOCAIRO_CFLAGS@ @PANGO_CFLAGS@ @CAIRO_CFLAGS@ @GLIB2_CFLAGS@ @GOBJECT2_CFLAGS@ @X11_CFLAGS@ @XINERAMA_CFLAGS@ @IMLIB2_CFLAGS@
-LIBS = @PANGOCAIRO_LIBS@ @PANGO_LIBS@ @CAIRO_LIBS@ @GLIB2_LIBS@ @GOBJECT2_LIBS@ @X11_LIBS@ @XINERAMA_LIBS@ @IMLIB2_LIBS@
+LIBS = @PANGOCAIRO_LIBS@ @PANGO_LIBS@ @CAIRO_LIBS@ @GLIB2_LIBS@ @GOBJECT2_LIBS@ @X11_LIBS@ @XINERAMA_LIBS@ @IMLIB2_LIBS@ -lrt
 INCLUDES = -Iutil -Iclock -Itaskbar -Isystray -Itooltip
 
 bin_PROGRAMS = tint2

@@ -37,6 +37,7 @@ PangoFontDescription *bat1_font_desc=0;
 PangoFontDescription *bat2_font_desc=0;
 struct batstate battery_state;
 int battery_enabled;
+static const struct timeout* battery_timeout=0;
 
 static char buf_bat_percentage[10];
 static char buf_bat_time[20];
@@ -131,8 +132,8 @@ 
 	g_free(path1);
 	g_free(battery_dir);
 
-	if (battery_enabled)
-		install_timer(0, 1000000, 5, 0, update_batterys);
+	if (battery_enabled && battery_timeout==0)
+		battery_timeout = add_timeout(10, 5000, update_batterys);
 }
 
 

@@ -46,6 +46,7 @@ static char buf_time[40];
 static char buf_date[40];
 static char buf_tooltip[40];
 int clock_enabled;
+static const struct timeout* clock_timeout=0;
 
 
 void update_clocks()
@@ -69,10 +70,11 @@ 
 
 void init_clock()
 {
-	if(time1_format) {
+	if(time1_format && clock_timeout==0) {
 		if (strchr(time1_format, 'S') || strchr(time1_format, 'T') || strchr(time1_format, 'r'))
-			install_timer(0, 1000000, 1, 0, update_clocks);
-		else install_timer(0, 1000000, 60, 0, update_clocks);
+			clock_timeout = add_timeout(10, 1000, update_clocks);
+		else
+			clock_timeout = add_timeout(10, 60000, update_clocks);
 	}
 }
 

@@ -75,7 +75,6 @@ // append full transparency background
 	list_back = g_slist_append(0, calloc(1, sizeof(Area)));
 
 	// tint2 could reload config, so we cleanup objects
-	uninstall_all_timer();
 	cleanup_systray();
 #ifdef ENABLE_BATTERY
 	cleanup_battery();
@@ -526,20 +525,12 @@ /* Tooltip */
 	else if (strcmp (key, "tooltip") == 0)
 		g_tooltip.enabled = atoi(value);
 	else if (strcmp (key, "tooltip_show_timeout") == 0) {
-		double timeout = atof(value);
-		int sec = (int)timeout;
-		int nsec = (timeout-sec)*1e9;
-		if (nsec < 0)  // can happen because of double is not precise such that (sec > timeout)==TRUE
-			nsec = 0;
-		g_tooltip.show_timeout = (struct timespec){.tv_sec=sec, .tv_nsec=nsec};
+		int timeout_msec = 1000*atof(value);
+		g_tooltip.show_timeout_msec = timeout_msec;
 	}
 	else if (strcmp (key, "tooltip_hide_timeout") == 0) {
-		double timeout = atof(value);
-		int sec = (int)timeout;
-		int nsec = (timeout-sec)*1e9;
-		if (nsec < 0)  // can happen because of double is not precise such that (sec > timeout)==TRUE
-			nsec = 0;
-		g_tooltip.hide_timeout = (struct timespec){.tv_sec=sec, .tv_nsec=nsec};
+		int timeout_msec = 1000*atof(value);
+		g_tooltip.hide_timeout_msec = timeout_msec;
 	}
 	else if (strcmp (key, "tooltip_padding") == 0) {
 		extract_values(value, &value1, &value2, &value3);

@@ -34,7 +34,7 @@ #include "panel.h"
 #include "tooltip.h"
 #include "timer.h"
 
-static int urgent_timer = 0;
+static const struct timeout* urgent_timeout = 0;
 
 const char* task_get_tooltip(void* obj)
 {
@@ -99,6 +99,8 @@ tskbar->area.resize = 1;
 			//printf("add_task panel %d, desktop %d, task %s\n", i, j, new_tsk2->title);
 		}
 	}
+	if (window_is_urgent(win))
+		add_urgent(new_tsk2);
 	return new_tsk2;
 }
 
@@ -503,10 +505,8 @@ t->tsk = tsk;
 	t->tick = 0;
 	urgent_list = g_slist_prepend(urgent_list, t);
 
-	if (urgent_timer == 0)
-		urgent_timer = install_timer(0, 1000000, 1, 0, blink_urgent);
-	else
-		reset_timer(urgent_timer, 0, 1000000, 1, 0);
+	if (urgent_timeout == 0)
+		urgent_timeout = add_timeout(10, 1000, blink_urgent);
 }
 
 
@@ -518,8 +518,10 @@ Task_urgent* t = urgent_task->data;
 		if (t->tsk == tsk) {
 			urgent_list = g_slist_remove(urgent_list, t);
 			free(t);
-			if (!urgent_list)
-				reset_timer(urgent_timer, 0, 0, 0, 0);
+			if (!urgent_list) {
+				stop_timeout(urgent_timeout);
+				urgent_timeout = 0;
+			}
 			return;
 		}
 		urgent_task = urgent_task->next;
@@ -528,6 +530,8 @@ }
 
 int is_urgent(Task *tsk)
 {
+	if (!tsk)
+		return;
 	GSList* urgent_task = urgent_list;
 	while (urgent_task) {
 		Task_urgent* t = urgent_task->data;

@@ -635,8 +635,7 @@ fd_set fdset;
 	int x11_fd, i;
 	Panel *panel;
 	GSList *it;
-	GSList* timer_iter;
-	struct timer* timer;
+	const struct timespec* timeout;
 
 	init (argc, argv);
 
@@ -695,33 +694,17 @@ }
 		}
 
 		// thanks to AngryLlama for the timer
-		// Create a File Description Set containing x11_fd, and every timer_fd
+		// Create a File Description Set containing x11_fd
 		FD_ZERO (&fdset);
 		FD_SET (x11_fd, &fdset);
-		int max_fd = x11_fd;
-		timer_iter = timer_list;
-		while (timer_iter) {
-			timer = timer_iter->data;
-			max_fd = timer->id > max_fd ? timer->id : max_fd;
-			FD_SET(timer->id, &fdset);
-			timer_iter = timer_iter->next;
-		}
+		update_next_timeout();
+		if (next_timeout.tv_sec >= 0 && next_timeout.tv_nsec >= 0)
+			timeout = &next_timeout;
+		else
+			timeout = 0;
 
 		// Wait for X Event or a Timer
-		if (pselect(max_fd+1, &fdset, 0, 0, 0, &empty_mask) > 0) {
-			// we need to iterate over the whole timer list, since fd_set can only be checked with the
-			// brute force method FD_ISSET for every possible timer
-			timer_iter = timer_list;
-			while (timer_iter) {
-				timer = timer_iter->data;
-				if (FD_ISSET(timer->id, &fdset)) {
-					uint64_t dummy;
-					if ( -1  != read(timer->id, &dummy, sizeof(uint64_t)) )
-						timer->_callback();
-				}
-				timer_iter = timer_iter->next;
-			}
-
+		if (pselect(x11_fd+1, &fdset, 0, 0, timeout, &empty_mask) > 0) {
 			while (XPending (server.dsp)) {
 				XNextEvent(server.dsp, &e);
 
@@ -799,6 +782,8 @@ break;
 				}
 			}
 		}
+
+		callback_timeout_expired();
 
 		switch (signal_pending) {
 		case SIGUSR1: // reload config file

@@ -32,7 +32,7 @@ 
 // the next functions are helper functions for tooltip handling
 void start_show_timeout();
 void start_hide_timeout();
-void stop_timeouts();
+void stop_tooltip_timeout();
 void tooltip_copy_text(Area* area);
 
 // give the tooltip some reasonable default values
@@ -41,8 +41,8 @@ .tooltip_text = 0,
 	.area = 0,
 	.panel = 0,
 	.window = 0,
-	.show_timeout = { 0, 0 },
-	.hide_timeout = { 0, 0 },
+	.show_timeout_msec = 0,
+	.hide_timeout_msec = 0,
 	.enabled = False,
 	.mapped = False,
 	.paddingx = 0,
@@ -51,8 +51,7 @@ .font_color = { .color={1, 1, 1}, .alpha=1 },
 	.background_color = { .color={0.5, 0.4, 0.5}, .alpha=1 },
 	.border = { .color={0, 0, 0}, .alpha=1,  .width=1, .rounded=0 },
 	.font_desc = 0,
-	.show_timer_id = 0,
-	.hide_timer_id = 0
+	.timeout = 0
 };
 
 void init_tooltip()
@@ -60,9 +59,6 @@ {
 	if (!g_tooltip.font_desc)
 		g_tooltip.font_desc = pango_font_description_from_string("sans 10");
 
-	g_tooltip.show_timer_id = install_timer(0, 0, 0, 0, tooltip_show);
-	g_tooltip.hide_timer_id = install_timer(0, 0, 0, 0, tooltip_hide);
-
 	XSetWindowAttributes attr;
 	attr.override_redirect = True;
 	attr.event_mask = StructureNotifyMask;
@@ -73,7 +69,7 @@ 
 
 void cleanup_tooltip()
 {
-	stop_timeouts();
+	stop_tooltip_timeout();
 	tooltip_hide();
 	g_tooltip.enabled = False;
 	tooltip_copy_text(0);
@@ -96,7 +92,7 @@ g_tooltip.panel = p;
 	if (g_tooltip.mapped && g_tooltip.area != area) {
 		tooltip_copy_text(area);
 		tooltip_update();
-		stop_timeouts();
+		stop_tooltip_timeout();
 	}
 	else if (!g_tooltip.mapped) {
 		start_show_timeout();
@@ -110,7 +106,7 @@ int mx, my;
   Window w;
   XTranslateCoordinates( server.dsp, server.root_win, g_tooltip.panel->main_win, x, y, &mx, &my, &w);
   Area* area = click_area(g_tooltip.panel, mx, my);
-	stop_timeouts();
+	stop_tooltip_timeout();
 	if (!g_tooltip.mapped && area->_get_tooltip_text) {
 		tooltip_copy_text(area);
 		g_tooltip.mapped = True;
@@ -204,7 +200,6 @@ tooltip_hide();
 		return;
 	}
 
-//	printf("tooltip_update\n");
 	tooltip_update_geometry();
 	tooltip_adjust_geometry();
 	XMoveResizeWindow(server.dsp, g_tooltip.window, x, y, width, height);
@@ -253,14 +248,14 @@ start_hide_timeout();
 	}
 	else {
 		// tooltip not visible yet, but maybe a timeout is still pending
-		stop_timeouts();
+		stop_tooltip_timeout();
 	}
 }
 
 
 void tooltip_hide()
 {
-	stop_timeouts();
+	stop_tooltip_timeout();
 	if (g_tooltip.mapped) {
 		g_tooltip.mapped = False;
 		XUnmapWindow(server.dsp, g_tooltip.window);
@@ -271,31 +266,28 @@ 
 
 void start_show_timeout()
 {
-	reset_timer(g_tooltip.hide_timer_id, 0, 0, 0, 0);
-	struct timespec t = g_tooltip.show_timeout;
-	if (t.tv_sec == 0 && t.tv_nsec == 0) {
-		tooltip_show();
-	}
-	else {
-		reset_timer(g_tooltip.show_timer_id, t.tv_sec, t.tv_nsec, 0, 0);
-	}
+	if (g_tooltip.timeout)
+		change_timeout(g_tooltip.timeout, g_tooltip.show_timeout_msec, 0, tooltip_show);
+	else
+		g_tooltip.timeout = add_timeout(g_tooltip.show_timeout_msec, 0, tooltip_show);
 }
 
 
 void start_hide_timeout()
 {
-	reset_timer(g_tooltip.show_timer_id, 0, 0, 0, 0);
-	struct timespec t = g_tooltip.hide_timeout;
-	if (t.tv_sec == 0 && t.tv_nsec == 0)
-		tooltip_hide();
+	if (g_tooltip.timeout)
+		change_timeout(g_tooltip.timeout, g_tooltip.hide_timeout_msec, 0, tooltip_hide);
 	else
-		reset_timer(g_tooltip.hide_timer_id, t.tv_sec, t.tv_nsec, 0, 0);
+		g_tooltip.timeout = add_timeout(g_tooltip.hide_timeout_msec, 0, tooltip_hide);
 }
 
-void stop_timeouts()
+
+void stop_tooltip_timeout()
 {
-	reset_timer(g_tooltip.show_timer_id, 0, 0, 0, 0);
-	reset_timer(g_tooltip.hide_timer_id, 0, 0, 0, 0);
+	if (g_tooltip.timeout) {
+		stop_timeout(g_tooltip.timeout);
+		g_tooltip.timeout = 0;
+	}
 }
 
 

@@ -18,10 +18,9 @@ 
 #ifndef TOOLTIP_H
 #define TOOLTIP_H
 
-#include <sys/time.h>
-
 #include "task.h"
 #include "panel.h"
+#include "timer.h"
 
 
 typedef struct {
@@ -29,8 +28,8 @@ Area* area;    // never ever use the area attribut if you are not 100% sure that this area was not freed
 	char* tooltip_text;
 	Panel* panel;
 	Window window;
-	struct timespec show_timeout;
-	struct timespec hide_timeout;
+	int show_timeout_msec;
+	int hide_timeout_msec;
 	Bool enabled;
 	Bool mapped;
 	int paddingx;
@@ -39,8 +38,7 @@ PangoFontDescription* font_desc;
 	config_color font_color;
 	Color background_color;
 	Border border;
-	int show_timer_id;
-	int hide_timer_id;
+	const struct timeout* timeout;
 } Tooltip;
 
 extern Tooltip g_tooltip;

@@ -15,68 +15,152 @@ * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 **************************************************************************/
 
-#include <sys/timerfd.h>
+#include <time.h>
 #include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
 
 #include "timer.h"
 
-GSList* timer_list = 0;
+GSList* timeout_list = 0;
+struct timespec next_timeout;
 
-int install_timer(int value_sec, int value_nsec, int interval_sec, int interval_nsec, void (*_callback)())
-{
-	if ( value_sec < 0 || interval_sec < 0 || _callback == 0 )
-		return -1;
+void add_timeout_intern(int value_msec, int interval_msec, void(*_callback)(), struct timeout* t);
+gint compare_timeouts(gconstpointer t1, gconstpointer t2);
+gint compare_timespecs(const struct timespec* t1, const struct timespec* t2);
+int timespec_subtract(struct timespec* result, struct timespec* x, struct timespec* y);
 
-	int timer_fd;
-	struct itimerspec timer;
-	timer.it_value = (struct timespec){ .tv_sec=value_sec, .tv_nsec=value_nsec };
-	timer.it_interval = (struct timespec){ .tv_sec=interval_sec, .tv_nsec=interval_nsec };
-	timer_fd = timerfd_create(CLOCK_MONOTONIC, 0);
-	timerfd_settime(timer_fd, 0, &timer, 0);
-	struct timer* t = malloc(sizeof(struct timer));
-	t->id=timer_fd;
-	t->_callback = _callback;
-	timer_list = g_slist_prepend(timer_list, t);
+
+const struct timeout* add_timeout(int value_msec, int interval_msec, void (*_callback)())
+{
+	struct timeout* t = malloc(sizeof(struct timeout));
+	add_timeout_intern(value_msec, interval_msec, _callback, t);
+	return t;
+}
 
-	int flags = fcntl( timer_fd, F_GETFL, 0 );
-	if( flags != -1 )
-		fcntl( timer_fd, F_SETFL, flags | O_NONBLOCK );
 
-	return timer_fd;
+void change_timeout(const struct timeout *t, int value_msec, int interval_msec, void(*_callback)())
+{
+	timeout_list = g_slist_remove(timeout_list, t);
+	add_timeout_intern(value_msec, interval_msec, _callback, (struct timeout*)t);
 }
 
 
-void reset_timer(int id, int value_sec, int value_nsec, int interval_sec, int interval_nsec)
+void update_next_timeout()
 {
-	struct itimerspec timer;
-	timer.it_value = (struct timespec){ .tv_sec=value_sec, .tv_nsec=value_nsec };
-	timer.it_interval = (struct timespec){ .tv_sec=interval_sec, .tv_nsec=interval_nsec };
-	timerfd_settime(id, 0, &timer, 0);
+	if (timeout_list) {
+		struct timeout* t = timeout_list->data;
+		struct timespec cur_time;
+		clock_gettime(CLOCK_MONOTONIC, &cur_time);
+		if (timespec_subtract(&next_timeout, &t->timeout_expires, &cur_time)) {
+			next_timeout.tv_sec = 0;
+			next_timeout.tv_nsec = 0;
+		}
+	}
+	else
+		next_timeout.tv_sec = -1;
 }
 
 
-void uninstall_timer(int id)
+void callback_timeout_expired()
 {
-	close(id);
-	GSList* timer_iter = timer_list;
-	while (timer_iter) {
-		struct timer* t = timer_iter->data;
-		if (t->id == id) {
-			timer_list = g_slist_remove(timer_list, t);
-			free(t);
-			return;
+	struct timespec cur_time;
+	struct timeout* t;
+	while (timeout_list) {
+		clock_gettime(CLOCK_MONOTONIC, &cur_time);
+		t = timeout_list->data;
+		if (compare_timespecs(&t->timeout_expires, &cur_time) <= 0) {
+			// it's time for the callback function
+			t->_callback();
+			if (g_slist_find(timeout_list, t)) {
+				// if _callback() calls stop_timeout(t) the timeout 't' does not exist anymore
+				timeout_list = g_slist_remove(timeout_list, t);
+				if (t->interval_msec > 0)
+					add_timeout_intern(t->interval_msec, t->interval_msec, t->_callback, t);
+				else
+					free(t);
+			}
 		}
-		timer_iter = timer_iter->next;
+		else
+			return;
+	}
+}
+
+
+void stop_timeout(const struct timeout* t)
+{
+	if (g_slist_find(timeout_list, t)) {
+		timeout_list = g_slist_remove(timeout_list, t);
+		free((void*)t);
+	}
+}
+
+
+void stop_all_timeouts()
+{
+	while (timeout_list) {
+		free(timeout_list->data);
+		timeout_list = g_slist_remove(timeout_list, timeout_list->data);
 	}
 }
 
 
-void uninstall_all_timer()
+void add_timeout_intern(int value_msec, int interval_msec, void(*_callback)(), struct timeout *t)
+{
+	t->interval_msec = interval_msec;
+	t->_callback = _callback;
+	struct timespec expire;
+	clock_gettime(CLOCK_MONOTONIC, &expire);
+	expire.tv_sec += value_msec / 1000;
+	expire.tv_nsec += (value_msec % 1000)*1000000;
+	if (expire.tv_nsec >= 1000000000) {  // 10^9
+		expire.tv_sec++;
+		expire.tv_nsec -= 1000000000;
+	}
+	t->timeout_expires = expire;
+	timeout_list = g_slist_insert_sorted(timeout_list, t, compare_timeouts);
+}
+
+
+gint compare_timeouts(gconstpointer t1, gconstpointer t2)
+{
+	return compare_timespecs(&((const struct timeout*)t1)->timeout_expires,
+													 &((const struct timeout*)t2)->timeout_expires);
+}
+
+
+gint compare_timespecs(const struct timespec* t1, const struct timespec* t2)
+{
+	if (t1->tv_sec < t2->tv_sec)
+		return -1;
+	else if (t1->tv_sec == t2->tv_sec) {
+		if (t1->tv_nsec < t2->tv_nsec)
+			return -1;
+		else if (t1->tv_nsec == t2->tv_nsec)
+			return 0;
+		else
+			return 1;
+	}
+	else
+		return 1;
+}
+
+int timespec_subtract(struct timespec* result, struct timespec* x, struct timespec* y)
 {
-	while (timer_list) {
-		struct timer* t = timer_list->data;
-		uninstall_timer(t->id);
+	/* Perform the carry for the later subtraction by updating y. */
+	if (x->tv_nsec < y->tv_nsec) {
+		int nsec = (y->tv_nsec - x->tv_nsec) / 1000000000 + 1;
+		y->tv_nsec -= 1000000000 * nsec;
+		y->tv_sec += nsec;
 	}
+	if (x->tv_nsec - y->tv_nsec > 1000000000) {
+		int nsec = (x->tv_nsec - y->tv_nsec) / 1000000000;
+		y->tv_nsec += 1000000000 * nsec;
+		y->tv_sec -= nsec;
+	}
+
+	/* Compute the time remaining to wait. tv_nsec is certainly positive. */
+	result->tv_sec = x->tv_sec - y->tv_sec;
+	result->tv_nsec = x->tv_nsec - y->tv_nsec;
+
+	/* Return 1 if result is negative. */
+	return x->tv_sec < y->tv_sec;
 }

@@ -21,31 +21,32 @@ #define TIMER_H
 
 #include <glib.h>
 
-extern GSList* timer_list;
+extern GSList* timeout_list;
+extern struct timespec next_timeout;
 
 
-struct timer {
-	int id;
+struct timeout {
+	int interval_msec;
+	struct timespec timeout_expires;
 	void (*_callback)();
 };
 
 
 // timer functions
-/** installs a timer with the first timeout 'value_sec' and then a periodic timeout with interval_sec
-	* '_callback' is the callback function when the timer reaches the timeout.
-	* If 'value_sec' == 0 then the timer is disabled (but not uninstalled)
-	* If 'interval_sec' == 0 the timer is a single shot timer, ie. no periodic timeout occur
-	* returns the 'id' of the timer, which is needed for uninstalling the timer **/
-int install_timer(int value_sec, int value_nsec, int interval_sec, int interval_nsec, void (*_callback)());
+/** installs a timeout with the first timeout of 'value_msec' and then a periodic timeout with
+	* 'interval_msec'. '_callback' is the callback function when the timer reaches the timeout.
+	* returns a pointer to the timeout, which is needed for stopping it again **/
+const struct timeout* add_timeout(int value_msec, int interval_msec, void (*_callback)());
+
+void change_timeout(const struct timeout* t, int value_msec, int interval_msec, void (*_callback)());
 
-/** resets a timer to the new values. If 'id' does not exist nothing happens.
-	* If value_sec == 0 the timer is stopped **/
-void reset_timer(int id, int value_sec, int value_nsec, int interval_sec, int interval_nsec);
+/** stops the timeout 't' **/
+void stop_timeout(const struct timeout* t);
 
-/** uninstalls a timer with the given 'id'. If no timer is installed with this id nothing happens **/
-void uninstall_timer(int id);
+/** stops all timeouts **/
+void stop_all_timeouts();
 
-/** uninstalls all timer. Calls uninstall_timer for all available id's **/
-void uninstall_all_timer();
+void update_next_timeout();
+void callback_timeout_expired();
 
 #endif // TIMER_H