commit 06710ebd054f2658f2b46e7c784eea51d58bb72d
parent fefab14beea22fa83ddee6b4d196ead0c9a34a28
Author: Mark Caudill <mark@mrkc.me>
Date: Wed, 1 Apr 2020 11:45:00 -0400
Proposed fix for issue #5.
Initialize all signals from RTMIN to RTMAX with a dummy handler before
actually setting the "real" handlers.
Diffstat:
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/dwmblocks.c b/dwmblocks.c
@@ -13,6 +13,7 @@ typedef struct {
unsigned int interval;
unsigned int signal;
} Block;
+void dummysighandler(int num);
void sighandler(int num);
void replace(char *str, char old, char new);
void getcmds(int time);
@@ -67,7 +68,7 @@ void getcmds(int time)
{
const Block* current;
for(int i = 0; i < LENGTH(blocks); i++)
- {
+ {
current = blocks + i;
if ((current->interval != 0 && time % current->interval == 0) || time == -1)
getcmd(current,statusbar[i]);
@@ -88,8 +89,12 @@ void getsigcmds(int signal)
void setupsignals()
{
+ /* initialize all real time signals with dummy handler */
+ for(int i = SIGRTMIN; i <= SIGRTMAX; i++)
+ signal(i, dummysighandler);
+
for(int i = 0; i < LENGTH(blocks); i++)
- {
+ {
if (blocks[i].signal > 0)
signal(SIGRTMIN+blocks[i].signal, sighandler);
}
@@ -147,6 +152,14 @@ void statusloop()
}
#ifndef __OpenBSD__
+/* this signal handler should do nothing */
+void dummysighandler(int signum)
+{
+ return;
+}
+#endif
+
+#ifndef __OpenBSD__
void sighandler(int signum)
{
getsigcmds(signum-SIGRTMIN);
@@ -163,7 +176,7 @@ void termhandler(int signum)
int main(int argc, char** argv)
{
for(int i = 0; i < argc; i++)
- {
+ {
if (!strcmp("-d",argv[i]))
delim = argv[++i][0];
else if(!strcmp("-p",argv[i]))
