dwm

commit e6e2cca529a2e51abb21ccbc410363a7c3df183a
parent 0b4cafb297403ec0cef951441969bfdd270a8990
Author: Jul <jul@9o.is>
Date:   Sun,  1 Feb 2026 02:19:44 -0500

handle term and hup signals

Diffstat:
M
config.def.h
 | 
1
+
M
config.h
 | 
2
+-
M
dwm.1
 | 
10
++++++++++
M
dwm.c
 | 
34
+++++++++++++++++++++++++++++++++-

4 files changed, 45 insertions(+), 2 deletions(-)
diff --git a/config.def.h b/config.def.h
@@ -96,6 +96,7 @@ static const Key keys[] = {
 	TAGKEYS(                        XK_8,                      7)
 	TAGKEYS(                        XK_9,                      8)
 	{ MODKEY|ShiftMask,             XK_q,      quit,           {0} },
+	{ MODKEY|ControlMask|ShiftMask, XK_q,      quit,           {1} },
 };
 
 /* button definitions */
diff --git a/config.h b/config.h
@@ -89,7 +89,7 @@ static const Key keys[] = {
 	TAGKEYS(                        XK_7,                      6)
 	TAGKEYS(                        XK_8,                      7)
 	TAGKEYS(                        XK_9,                      8)
-	{ MODKEY|Mod1Mask,              XK_q,      quit,           {0} },
+	{ MODKEY|Mod1Mask,              XK_q,      quit,           {1} },
 };
 
 /* button definitions */
diff --git a/dwm.1 b/dwm.1
@@ -142,6 +142,9 @@ Add/remove all windows with nth tag to/from the view.
 .TP
 .B Mod1\-Shift\-q
 Quit dwm.
+.TP
+.B Mod1\-Control\-Shift\-q
+Restart dwm.
 .SS Mouse commands
 .TP
 .B Mod1\-Button1
@@ -155,6 +158,13 @@ Resize focused window while dragging. Tiled windows will be toggled to the float
 .SH CUSTOMIZATION
 dwm is customized by creating a custom config.h and (re)compiling the source
 code. This keeps it fast, secure and simple.
+.SH SIGNALS
+.TP
+.B SIGHUP - 1
+Restart the dwm process.
+.TP
+.B SIGTERM - 15
+Cleanly terminate the dwm process.
 .SH SEE ALSO
 .BR dmenu (1),
 .BR st (1)
diff --git a/dwm.c b/dwm.c
@@ -204,6 +204,8 @@ static void setmfact(const Arg *arg);
 static void setup(void);
 static void seturgent(Client *c, int urg);
 static void showhide(Client *c);
+static void sighup(int unused);
+static void sigterm(int unused);
 static void spawn(const Arg *arg);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
@@ -259,6 +261,7 @@ static void (*handler[LASTEvent]) (XEvent *) = {
 	[UnmapNotify] = unmapnotify
 };
 static Atom wmatom[WMLast], netatom[NetLast];
+static int restart = 0;
 static int running = 1;
 static Cur *cursor[CurLast];
 static Clr **scheme;
@@ -1258,6 +1261,7 @@ propertynotify(XEvent *e)
 void
 quit(const Arg *arg)
 {
+	if(arg->i) restart = 1;
 	running = 0;
 }
 
@@ -1542,7 +1546,7 @@ setup(void)
 	int i;
 	XSetWindowAttributes wa;
 	Atom utf8string;
-	struct sigaction sa;
+	struct sigaction sa, sa_term, sa_hup;
 
 	/* do not transform children into zombies when they terminate */
 	sigemptyset(&sa.sa_mask);
@@ -1550,6 +1554,18 @@ setup(void)
 	sa.sa_handler = SIG_IGN;
 	sigaction(SIGCHLD, &sa, NULL);
 
+	/* handle termination */
+	sigemptyset(&sa_term.sa_mask);
+	sa_term.sa_flags = SA_RESTART;
+	sa_term.sa_handler = sigterm;
+	sigaction(SIGTERM, &sa_term, NULL);
+
+	/* handle hangup */
+	sigemptyset(&sa_hup.sa_mask);
+	sa_hup.sa_flags = SA_RESTART;
+	sa_hup.sa_handler = sighup;
+	sigaction(SIGHUP, &sa_hup, NULL);
+
 	/* clean up any zombies (inherited from .xinitrc etc) immediately */
 	while (waitpid(-1, NULL, WNOHANG) > 0);
 
@@ -1645,6 +1661,20 @@ showhide(Client *c)
 }
 
 void
+sighup(int unused)
+{
+	Arg a = {.i = 1};
+	quit(&a);
+}
+
+void
+sigterm(int unused)
+{
+	Arg a = {.i = 0};
+	quit(&a);
+}
+
+void
 spawn(const Arg *arg)
 {
 	struct sigaction sa;
@@ -2159,6 +2189,8 @@ main(int argc, char *argv[])
 #endif /* __OpenBSD__ */
 	scan();
 	run();
+	if(restart)
+		execvp(argv[0], argv);
 	cleanup();
 	XCloseDisplay(dpy);
 	return EXIT_SUCCESS;