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Preliminary solution to the stuttering problem.

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This commit is contained in:
Christoph Lohmann
2012-09-16 13:22:23 +02:00
parent d81250e5f9
commit 9fbafe55c9
1 changed files with 24 additions and 3 deletions
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27
st.c
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@ -48,7 +48,7 @@
#define ESC_ARG_SIZ 16 #define ESC_ARG_SIZ 16
#define STR_BUF_SIZ 256 #define STR_BUF_SIZ 256
#define STR_ARG_SIZ 16 #define STR_ARG_SIZ 16
#define DRAW_BUF_SIZ 1024 #define DRAW_BUF_SIZ 20*1024
#define UTF_SIZ 4 #define UTF_SIZ 4
#define XK_NO_MOD UINT_MAX #define XK_NO_MOD UINT_MAX
#define XK_ANY_MOD 0 #define XK_ANY_MOD 0
@ -2329,7 +2329,8 @@ void
run(void) { run(void) {
XEvent ev; XEvent ev;
fd_set rfd; fd_set rfd;
int xfd = XConnectionNumber(xw.dpy); int xfd = XConnectionNumber(xw.dpy), i;
struct timeval drawtimeout;
for(;;) { for(;;) {
FD_ZERO(&rfd); FD_ZERO(&rfd);
@ -2340,9 +2341,29 @@ run(void) {
continue; continue;
die("select failed: %s\n", SERRNO); die("select failed: %s\n", SERRNO);
} }
if(FD_ISSET(cmdfd, &rfd))
/*
* Stop after a certain number of reads so the user does not
* feel like the system is stuttering.
*/
for(i = 0; i < 1000 && FD_ISSET(cmdfd, &rfd); i++) {
ttyread(); ttyread();
FD_ZERO(&rfd);
FD_SET(cmdfd, &rfd);
/*
* Just wait a bit so it isn't disturbing the
* user and the system is able to write something.
*/
drawtimeout.tv_sec = 0;
drawtimeout.tv_usec = 5;
if(select(cmdfd+1, &rfd, NULL, NULL, &drawtimeout) < 0) {
if(errno == EINTR)
continue;
die("select failed: %s\n", SERRNO);
}
}
while(XPending(xw.dpy)) { while(XPending(xw.dpy)) {
XNextEvent(xw.dpy, &ev); XNextEvent(xw.dpy, &ev);
if(XFilterEvent(&ev, xw.win)) if(XFilterEvent(&ev, xw.win))