Handle SIGUSR1 for forced refreshes - slstatus - status monitor
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       ---
 (DIR) commit d1b23e5509863fd0790261b2b388e687d5218d53
 (DIR) parent 3fc2872d1b3e62903a4af49326d42c97c11911d5
 (HTM) Author: Mart Lubbers <mart@martlubbers.net>
       Date:   Thu, 18 Jun 2020 08:46:12 +0200
       
       Handle SIGUSR1 for forced refreshes
       
       At some point one might want to force a refresh for example after
       checking email or changing the volume. Sending a SIGUSR1 achieves this
       now
       
       Diffstat:
         M slstatus.c                          |       9 +++++----
       
       1 file changed, 5 insertions(+), 4 deletions(-)
       ---
 (DIR) diff --git a/slstatus.c b/slstatus.c
       @@ -18,7 +18,7 @@ struct arg {
        };
        
        char buf[1024];
       -static int done;
       +static volatile sig_atomic_t done;
        static Display *dpy;
        
        #include "config.h"
       @@ -26,9 +26,8 @@ static Display *dpy;
        static void
        terminate(const int signo)
        {
       -        (void)signo;
       -
       -        done = 1;
       +        if (signo != SIGUSR1)
       +                done = 1;
        }
        
        static void
       @@ -72,6 +71,8 @@ main(int argc, char *argv[])
                act.sa_handler = terminate;
                sigaction(SIGINT,  &act, NULL);
                sigaction(SIGTERM, &act, NULL);
       +        act.sa_flags |= SA_RESTART;
       +        sigaction(SIGUSR1, &act, NULL);
        
                if (!sflag && !(dpy = XOpenDisplay(NULL))) {
                        die("XOpenDisplay: Failed to open display");