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restartsig: call XNextEvent only when there is data to be read ref. #295

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bakkeby 2022-08-29 21:37:03 +02:00
parent 90f9b2d982
commit 0f36ba5408
1 changed files with 33 additions and 1 deletions
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34
dwm.c
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@ -55,6 +55,10 @@
#include <pango/pango.h>
#endif // BAR_PANGO_PATCH
#if RESTARTSIG_PATCH
#include <poll.h>
#endif // RESTARTSIG_PATCH
#if XKB_PATCH
#include <X11/XKBlib.h>
#endif // XKB_PATCH
@ -819,7 +823,11 @@ static Atom clientatom[ClientLast];
#if ON_EMPTY_KEYS_PATCH
static int isempty = 0;
#endif // ON_EMPTY_KEYS_PATCH
#if RESTARTSIG_PATCH
static volatile sig_atomic_t running = 1;
#else
static int running = 1;
#endif // RESTARTSIG_PATCH
static Cur *cursor[CurLast];
static Clr **scheme;
static Display *dpy;
@ -3186,6 +3194,30 @@ run(void)
}
}
}
#elif RESTARTSIG_PATCH
void
run(void)
{
XEvent ev;
XSync(dpy, False);
/* main event loop */
while (running) {
struct pollfd pfd = {
.fd = ConnectionNumber(dpy),
.events = POLLIN,
};
int pending = XPending(dpy) > 0 || poll(&pfd, 1, -1) > 0;
if (!running)
break;
if (!pending)
continue;
XNextEvent(dpy, &ev);
if (handler[ev.type])
handler[ev.type](&ev); /* call handler */
}
}
#else
void
run(void)
@ -3208,7 +3240,7 @@ run(void)
handler[ev.type](&ev); /* call handler */
}
}
#endif // IPC_PATCH
#endif // IPC_PATCH | RESTARTSIG_PATCH
void
scan(void)