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Fix problems with window sizing seen by Raghavendra D Prabhu when

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starting tmux from .xinitrc.

One of the very few things the server relies on the client for now is to
pass through a message on SIGWINCH, but there is a condition where
potentially a SIGWINCH may be lost during the transition from unattached
(main.c) to attached (client.c). So trigger a size change immediately
after the client installs its SIGWINCH handler.

Also, when the terminal is resized, reset the scroll region and cursor
position. Previously, we were clearing our saved idea of these, but in
fact some terminals do not reset them on resize, so this caused problems
during redraw.

While here make a resize to the same size not cause a redraw and rename
the tmux.out output log file to include the tmux PID.
This commit is contained in:
Nicholas Marriott
2010-06-05 16:47:11 +00:00
parent ceed5cc9a9
commit 510ec3fb9e
4 changed files with 41 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
tty.c
View File

@ -73,34 +73,55 @@ tty_init(struct tty *tty, int fd, char *term)
tty->term_flags = 0;
}
void
int
tty_resize(struct tty *tty)
{
struct winsize ws;
u_int sx, sy;
if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
tty->sx = ws.ws_col;
tty->sy = ws.ws_row;
sx = ws.ws_col;
if (sx == 0)
sx = 80;
sy = ws.ws_row;
if (sy == 0)
sy = 24;
} else {
sx = 80;
sy = 24;
}
if (tty->sx == 0)
tty->sx = 80;
if (tty->sy == 0)
tty->sy = 24;
if (sx == tty->sx && sy == tty->sy)
return (0);
tty->sx = sx;
tty->sy = sy;
tty->cx = UINT_MAX;
tty->cy = UINT_MAX;
tty->rupper = UINT_MAX;
tty->rlower = UINT_MAX;
/*
* If the terminal has been started, reset the actual scroll region and
* cursor position, as this may not have happened.
*/
if (tty->flags & TTY_STARTED) {
tty_cursor(tty, 0, 0);
tty_region(tty, 0, tty->sy - 1);
}
return (1);
}
int
tty_open(struct tty *tty, const char *overrides, char **cause)
{
char out[64];
int fd;
if (debug_level > 3) {
fd = open("tmux.out", O_WRONLY|O_CREAT|O_TRUNC, 0644);
xsnprintf(out, sizeof out, "tmux-out-%ld.log", (long) getpid());
fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644);
if (fd != -1 && fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
fatal("fcntl failed");
tty->log_fd = fd;