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From 2991f37f0aaf44b9f9b11e7893ff0af8eb88f649 Mon Sep 17 00:00:00 2001
From: Christopher Drelich <cd@cdrakka.com>
Date: Wed, 23 May 2018 22:50:38 -0400
Subject: [PATCH] Modifies quit to handle restarts and adds SIGHUP and SIGTERM
handlers.
Modified quit() to restart if it receives arg .i = 1
MOD+CTRL+SHIFT+Q was added to confid.def.h to do just that.
Signal handlers were handled for SIGHUP and SIGTERM.
If dwm receives these signals it calls quit() with
arg .i = to 1 or 0, respectively.
To restart dwm:
MOD+CTRL+SHIFT+Q
or
kill -HUP dwmpid
To quit dwm cleanly:
MOD+SHIFT+Q
or
kill -TERM dwmpid
---
config.def.h | 1 +
dwm.1 | 10 ++++++++++
dwm.c | 22 ++++++++++++++++++++++
3 files changed, 33 insertions(+)
diff --git a/config.def.h b/config.def.h
index a9ac303..e559429 100644
--- a/config.def.h
+++ b/config.def.h
@@ -94,6 +94,7 @@ static 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/dwm.1 b/dwm.1
index 13b3729..36a331c 100644
--- 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
index bb95e26..286eecd 100644
--- a/dwm.c
+++ b/dwm.c
@@ -205,6 +205,8 @@ static void setup(void);
static void seturgent(Client *c, int urg);
static void showhide(Client *c);
static void sigchld(int unused);
+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);
@@ -260,6 +262,7 @@ 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;
@@ -1248,6 +1251,7 @@ propertynotify(XEvent *e)
void
quit(const Arg *arg)
{
+ if(arg->i) restart = 1;
running = 0;
}
@@ -1536,6 +1540,9 @@ setup(void)
/* clean up any zombies immediately */
sigchld(0);
+ signal(SIGHUP, sighup);
+ signal(SIGTERM, sigterm);
+
/* init screen */
screen = DefaultScreen(dpy);
sw = DisplayWidth(dpy, screen);
@@ -1637,6 +1644,20 @@ sigchld(int unused)
}
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)
{
if (arg->v == dmenucmd)
@@ -2139,6 +2160,7 @@ main(int argc, char *argv[])
setup();
scan();
run();
+ if(restart) execvp(argv[0], argv);
cleanup();
XCloseDisplay(dpy);
return EXIT_SUCCESS;
--
2.7.4
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