Preliminary solution to the stuttering problem. - st - Personal fork of st
(HTM) git clone git://git.drkhsh.at/st.git
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---
(DIR) commit 9fbafe55c996324a73a0be3af80edcd39e5a393b
(DIR) parent d81250e5f96e96dd430a3fc61b5b47ffc04f98d8
(HTM) Author: Christoph Lohmann <20h@r-36.net>
Date: Sun, 16 Sep 2012 13:22:23 +0200
Preliminary solution to the stuttering problem.
Diffstat:
M st.c | 27 ++++++++++++++++++++++++---
1 file changed, 24 insertions(+), 3 deletions(-)
---
(DIR) diff --git a/st.c b/st.c
@@ -48,7 +48,7 @@
#define ESC_ARG_SIZ 16
#define STR_BUF_SIZ 256
#define STR_ARG_SIZ 16
-#define DRAW_BUF_SIZ 1024
+#define DRAW_BUF_SIZ 20*1024
#define UTF_SIZ 4
#define XK_NO_MOD UINT_MAX
#define XK_ANY_MOD 0
@@ -2329,7 +2329,8 @@ void
run(void) {
XEvent ev;
fd_set rfd;
- int xfd = XConnectionNumber(xw.dpy);
+ int xfd = XConnectionNumber(xw.dpy), i;
+ struct timeval drawtimeout;
for(;;) {
FD_ZERO(&rfd);
@@ -2340,9 +2341,29 @@ run(void) {
continue;
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();
+ 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)) {
XNextEvent(xw.dpy, &ev);
if(XFilterEvent(&ev, xw.win))