This is much cleaner and portable way of using SIGCHLD. It also disallow
existence of defunct processes, one which are executed for example from
.Xsession before (on the end) exec /path/../dwm
---
dwm.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/dwm.c b/dwm.c
index 873b794..3cb4a8e 100644
--- a/dwm.c
+++ b/dwm.c
@@ -207,7 +207,7 @@ static void setlayout(const Arg *arg);
static void setmfact(const Arg *arg);
static void setup(void);
static void showhide(Client *c);
-static void sigchld(int signal);
+static void sigchld(int unused);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
@@ -1428,6 +1428,8 @@ setup(void) {
int w;
XSetWindowAttributes wa;
+ signal(SIGCHLD, sigchld);
+
/* init screen */
screen = DefaultScreen(dpy);
root = RootWindow(dpy, screen);
@@ -1496,13 +1498,13 @@ showhide(Client *c) {
void
-sigchld(int signal) {
+sigchld(int unusedl) {
while(0 < waitpid(-1, NULL, WNOHANG));
+ signal(SIGCHLD, sigchld);
}
void
spawn(const Arg *arg) {
- signal(SIGCHLD, sigchld);
if(fork() == 0) {
if(dpy)
close(ConnectionNumber(dpy));
--
1.6.3.3
