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fixed signal handling on OpenBSD by using SIGUSR1 instead of SIGRTMIN.

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This should not affect other platforms at all.
This commit is contained in:
aidan 2020-08-12 10:24:42 -06:00
parent 5b9f39d697
commit 5dcb2a0d84
1 changed files with 14 additions and 11 deletions
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23
dwmblocks.c
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@ -4,6 +4,13 @@
#include<unistd.h> #include<unistd.h>
#include<signal.h> #include<signal.h>
#include<X11/Xlib.h> #include<X11/Xlib.h>
#ifdef __OpenBSD__
#define SIGPLUS SIGUSR1+1
#define SIGMINUS SIGUSR1-1
#else
#define SIGPLUS SIGRTMIN
#define SIGMINUS SIGRTMIN
#endif
#define LENGTH(X) (sizeof(X) / sizeof (X[0])) #define LENGTH(X) (sizeof(X) / sizeof (X[0]))
#define CMDLENGTH 50 #define CMDLENGTH 50
#define STATUSLENGTH (LENGTH(blocks) * CMDLENGTH + 1) #define STATUSLENGTH (LENGTH(blocks) * CMDLENGTH + 1)
@ -14,14 +21,14 @@ typedef struct {
unsigned int interval; unsigned int interval;
unsigned int signal; unsigned int signal;
} Block; } Block;
#ifndef __OpenBSD__
void dummysighandler(int num); void dummysighandler(int num);
#endif
void sighandler(int num); void sighandler(int num);
void getcmds(int time); void getcmds(int time);
#ifndef __OpenBSD__
void getsigcmds(int signal); void getsigcmds(int signal);
void setupsignals(); void setupsignals();
void sighandler(int signum); void sighandler(int signum);
#endif
int getstatus(char *str, char *last); int getstatus(char *str, char *last);
void setroot(); void setroot();
void statusloop(); void statusloop();
@ -67,7 +74,6 @@ void getcmds(int time)
} }
} }
#ifndef __OpenBSD__
void getsigcmds(int signal) void getsigcmds(int signal)
{ {
const Block *current; const Block *current;
@ -81,18 +87,19 @@ void getsigcmds(int signal)
void setupsignals() void setupsignals()
{ {
#ifndef __OpenBSD__
/* initialize all real time signals with dummy handler */ /* initialize all real time signals with dummy handler */
for(int i = SIGRTMIN; i <= SIGRTMAX; i++) for(int i = SIGRTMIN; i <= SIGRTMAX; i++)
signal(i, dummysighandler); signal(i, dummysighandler);
#endif
for(int i = 0; i < LENGTH(blocks); i++) for(int i = 0; i < LENGTH(blocks); i++)
{ {
if (blocks[i].signal > 0) if (blocks[i].signal > 0)
signal(SIGRTMIN+blocks[i].signal, sighandler); signal(SIGMINUS+blocks[i].signal, sighandler);
} }
} }
#endif
int getstatus(char *str, char *last) int getstatus(char *str, char *last)
{ {
@ -129,9 +136,7 @@ void pstdout()
void statusloop() void statusloop()
{ {
#ifndef __OpenBSD__
setupsignals(); setupsignals();
#endif
int i = 0; int i = 0;
getcmds(-1); getcmds(-1);
while(statusContinue) while(statusContinue)
@ -151,13 +156,11 @@ void dummysighandler(int signum)
} }
#endif #endif
#ifndef __OpenBSD__
void sighandler(int signum) void sighandler(int signum)
{ {
getsigcmds(signum-SIGRTMIN); getsigcmds(signum-SIGPLUS);
writestatus(); writestatus();
} }
#endif
void termhandler(int signum) void termhandler(int signum)
{ {