M src/config.c → src/config.c

@@ -518,14 +518,18 @@ g_tooltip.enabled = atoi(value);
 	else if (strcmp (key, "tooltip_show_timeout") == 0) {
 		double timeout = atof(value);
 		int sec = (int)timeout;
-		int usec = (timeout-sec)*1e6;
-		g_tooltip.show_timeout.it_value = (struct timeval){.tv_sec=sec, .tv_usec=usec};
+		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};
 	}
 	else if (strcmp (key, "tooltip_hide_timeout") == 0) {
 		double timeout = atof(value);
 		int sec = (int)timeout;
-		int usec = (timeout-sec)*1e6;
-		g_tooltip.hide_timeout.it_value = (struct timeval){.tv_sec=sec, .tv_usec=usec};
+		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};
 	}
 	else if (strcmp (key, "tooltip_padding") == 0) {
 		extract_values(value, &value1, &value2, &value3);

M src/tint.c → src/tint.c

@@ -80,7 +80,6 @@ sigaction(SIGINT, &sa, 0);
 	sigaction(SIGTERM, &sa, 0);
 	sigaction(SIGHUP, &sa, 0);
 	signal(SIGCHLD, SIG_IGN);		// don't have to wait() after fork()
-	signal(SIGALRM, tooltip_sighandler);
 	// block all signals, such that no race conditions occur before pselect in our main loop
 	sigset_t block_mask;
 	sigaddset(&block_mask, SIGINT);
@@ -827,6 +826,8 @@ break;
 				}
 			}
 
+			// 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;

M src/tooltip/tooltip.c → src/tooltip/tooltip.c

@@ -23,27 +23,31 @@ 
 #include "server.h"
 #include "tooltip.h"
 #include "panel.h"
-
-// TODO: Use timer_create instead of setitimer, because SIGALRM is not the right signal for this...
-// Reason: If we want to implement autohide we have to use another signal...
+#include "timer.h"
 
 static int x, y, width, height;
 
+// the next functions are helper functions for tooltip handling
+void start_show_timeout();
+void start_hide_timeout();
+void stop_timeouts();
+
 // give the tooltip some reasonable default values
 Tooltip g_tooltip = {
 	.task = 0,
 	.window = 0,
-	.show_timeout = { .it_interval={0, 0}, .it_value={0, 0} },
-	.hide_timeout = { .it_interval={0, 0}, .it_value={0, 0} },
+	.show_timeout = { 0, 0 },
+	.hide_timeout = { 0, 0 },
 	.enabled = False,
-	.current_state = TOOLTIP_ABOUT_TO_HIDE,
 	.mapped = False,
 	.paddingx = 0,
 	.paddingy = 0,
 	.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
+	.font_desc = 0,
+	.show_timer_id = 0,
+	.hide_timer_id = 0
 };
 
 void init_tooltip()
@@ -51,6 +55,11 @@ {
 	if (!g_tooltip.font_desc)
 		g_tooltip.font_desc = pango_font_description_from_string("sans 10");
 
+	if (g_tooltip.show_timer_id == 0)
+		g_tooltip.show_timer_id = install_timer(0, 0, 0, 0, tooltip_show);
+	if (g_tooltip.hide_timer_id == 0)
+		g_tooltip.hide_timer_id = install_timer(0, 0, 0, 0, tooltip_hide);
+
 	XSetWindowAttributes attr;
 	attr.override_redirect = True;
 	attr.event_mask = ExposureMask;
@@ -61,10 +70,9 @@ 
 
 void cleanup_tooltip()
 {
-	alarm(0);
+	stop_timeouts();
 	tooltip_hide();
 	g_tooltip.enabled = False;
-	g_tooltip.current_state = TOOLTIP_ABOUT_TO_HIDE;
 	if (g_tooltip.task) {
 		g_tooltip.task = 0;
 	}
@@ -79,15 +87,6 @@ }
 }
 
 
-void tooltip_sighandler(int sig)
-{
-	if (g_tooltip.current_state == TOOLTIP_ABOUT_TO_SHOW)
-		tooltip_show();
-	else if (g_tooltip.current_state == TOOLTIP_ABOUT_TO_HIDE)
-		tooltip_hide();
-}
-
-
 void tooltip_trigger_show(Task* task, int x_root, int y_root)
 {
 	x = x_root;
@@ -96,18 +95,11 @@ 
 	if (g_tooltip.mapped && g_tooltip.task != task) {
 		g_tooltip.task = task;
 		tooltip_update();
-		alarm(0);
+		stop_timeouts();
 	}
 	else if (!g_tooltip.mapped) {
-		g_tooltip.current_state = TOOLTIP_ABOUT_TO_SHOW;
 		g_tooltip.task = task;
-		struct timeval t = g_tooltip.show_timeout.it_value;
-		if (t.tv_sec == 0 && t.tv_usec == 0) {
-			alarm(0);
-			tooltip_show();
-		}
-		else
-			setitimer(ITIMER_REAL, &g_tooltip.show_timeout, 0);
+		start_show_timeout();
 	}
 }
 
@@ -118,7 +110,6 @@ if (!g_tooltip.mapped) {
 		g_tooltip.mapped = True;
 		XMapWindow(server.dsp, g_tooltip.window);
 		//tooltip_update();
-		alarm(0);
 	}
 }
 
@@ -251,19 +242,12 @@ 
 void tooltip_trigger_hide(Tooltip* tooltip)
 {
 	if (g_tooltip.mapped) {
-		g_tooltip.current_state = TOOLTIP_ABOUT_TO_HIDE;
-		struct timeval t = g_tooltip.hide_timeout.it_value;
 		g_tooltip.task = 0;
-		if (t.tv_sec == 0 && t.tv_usec == 0) {
-			tooltip_hide();
-			alarm(0);
-		}
-		else
-			setitimer(ITIMER_REAL, &g_tooltip.hide_timeout, 0);
+		start_hide_timeout();
 	}
 	else {
-		// tooltip not visible yet, but maybe an alarm is still pending
-		alarm(0);
+		// tooltip not visible yet, but maybe a timeout is still pending
+		stop_timeouts();
 	}
 }
 
@@ -275,3 +259,31 @@ g_tooltip.mapped = False;
 		XUnmapWindow(server.dsp, g_tooltip.window);
 	}
 }
+
+
+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);
+}
+
+
+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();
+	else
+		reset_timer(g_tooltip.hide_timer_id, t.tv_sec, t.tv_nsec, 0, 0);
+}
+
+void stop_timeouts()
+{
+	reset_timer(g_tooltip.show_timer_id, 0, 0, 0, 0);
+	reset_timer(g_tooltip.hide_timer_id, 0, 0, 0, 0);
+}

M src/tooltip/tooltip.h → src/tooltip/tooltip.h

@@ -22,18 +22,13 @@ #include <sys/time.h>
 
 #include "task.h"
 
-enum tooltip_state {
-	TOOLTIP_ABOUT_TO_SHOW,
-	TOOLTIP_ABOUT_TO_HIDE,
-};
 
 typedef struct {
 	Task* task;
 	Window window;
-	struct itimerval show_timeout;
-	struct itimerval hide_timeout;
+	struct timespec show_timeout;
+	struct timespec hide_timeout;
 	Bool enabled;
-	enum tooltip_state current_state;
 	Bool mapped;
 	int paddingx;
 	int paddingy;
@@ -41,14 +36,14 @@ PangoFontDescription* font_desc;
 	config_color font_color;
 	Color background_color;
 	Border border;
+	int show_timer_id;
+	int hide_timer_id;
 } Tooltip;
 
 extern Tooltip g_tooltip;
 
-
 void init_tooltip();
 void cleanup_tooltip();
-void tooltip_sighandler(int sig);
 void tooltip_trigger_show(Task* task, int x, int y);
 void tooltip_show();
 void tooltip_update();