Applying a shortening proposal for the run loop of k0ga.

[st.git] / st.c

diff --git a/st.c b/st.c
index 12d6665..d5ecf61 100644 (file)
--- 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 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
 #define UTF_SIZ       4
 #define XK_NO_MOD     UINT_MAX
 #define XK_ANY_MOD    0


@@ -2319,8 +2319,7 @@ resize(XEvent *e) {
        row = (xw.h - 2*BORDER) / xw.ch;
        if(col == term.col && row == term.row)
                return;
        row = (xw.h - 2*BORDER) / xw.ch;
        if(col == term.col && row == term.row)
                return;

-       if(tresize(col, row))
-               draw();
+       tresize(col, row);

        xresize(col, row);
        ttyresize(col, row);
 }
        xresize(col, row);
        ttyresize(col, row);
 }


@@ -2329,20 +2328,38 @@ void
 run(void) {
        XEvent ev;
        fd_set rfd;
 run(void) {
        XEvent ev;
        fd_set rfd;

-       int xfd = XConnectionNumber(xw.dpy);
+       int xfd = XConnectionNumber(xw.dpy), i;
+       struct timeval drawtimeout, *tv = NULL;

 
 

-       for(;;) {
+       for(i = 0;; i++) {

                FD_ZERO(&rfd);
                FD_SET(cmdfd, &rfd);
                FD_SET(xfd, &rfd);
                FD_ZERO(&rfd);
                FD_SET(cmdfd, &rfd);
                FD_SET(xfd, &rfd);

-               if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL) < 0) {
+               if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {

                        if(errno == EINTR)
                                continue;
                        die("select failed: %s\n", SERRNO);
                }
                        if(errno == EINTR)
                                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.
+                */
+               if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {

                        ttyread();
 
                        ttyread();
 

+                       /*
+                        * 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;
+                       tv = &drawtimeout;
+                       continue;
+               }
+               i = 0;
+               tv = NULL;
+

                while(XPending(xw.dpy)) {
                        XNextEvent(xw.dpy, &ev);
                        if(XFilterEvent(&ev, xw.win))
                while(XPending(xw.dpy)) {
                        XNextEvent(xw.dpy, &ev);
                        if(XFilterEvent(&ev, xw.win))