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Sync OpenBSD patchset 716:
Fix problems with window sizing seen by Raghavendra D Prabhu when 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.
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parent
3bba401609
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9
client.c
9
client.c
@ -1,4 +1,4 @@
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/* $Id: client.c,v 1.93 2010-06-06 00:25:47 tcunha Exp $ */
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/* $Id: client.c,v 1.94 2010-06-06 00:30:34 tcunha Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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@ -179,6 +179,13 @@ client_main(void)
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/* Set up signals. */
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set_signals(client_signal);
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/*
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* Send a resize message immediately in case the terminal size has
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* changed between the identify message to the server and the MSG_READY
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* telling us to move into the client code.
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*/
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client_write_server(MSG_RESIZE, NULL, 0);
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/*
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* imsg_read in the first client poll loop (before the terminal has
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* been initialised) may have read messages into the buffer after the
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@ -1,4 +1,4 @@
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/* $Id: server-client.c,v 1.32 2010-05-22 21:56:04 micahcowan Exp $ */
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/* $Id: server-client.c,v 1.33 2010-06-06 00:30:34 tcunha Exp $ */
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/*
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* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
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@ -560,9 +560,10 @@ server_client_msg_dispatch(struct client *c)
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if (datalen != 0)
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fatalx("bad MSG_RESIZE size");
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tty_resize(&c->tty);
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recalculate_sizes();
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server_redraw_client(c);
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if (tty_resize(&c->tty)) {
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recalculate_sizes();
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server_redraw_client(c);
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}
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break;
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case MSG_EXITING:
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if (datalen != 0)
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4
tmux.h
4
tmux.h
@ -1,4 +1,4 @@
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/* $Id: tmux.h,v 1.560 2010-06-06 00:23:44 tcunha Exp $ */
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/* $Id: tmux.h,v 1.561 2010-06-06 00:30:34 tcunha Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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@ -1354,7 +1354,7 @@ void tty_puts(struct tty *, const char *);
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void tty_putc(struct tty *, u_char);
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void tty_pututf8(struct tty *, const struct grid_utf8 *);
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void tty_init(struct tty *, int, char *);
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void tty_resize(struct tty *);
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int tty_resize(struct tty *);
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void tty_start_tty(struct tty *);
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void tty_stop_tty(struct tty *);
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void tty_set_title(struct tty *, const char *);
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39
tty.c
39
tty.c
@ -1,4 +1,4 @@
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/* $Id: tty.c,v 1.191 2010-06-06 00:27:08 tcunha Exp $ */
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/* $Id: tty.c,v 1.192 2010-06-06 00:30:34 tcunha Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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@ -73,34 +73,55 @@ tty_init(struct tty *tty, int fd, char *term)
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tty->term_flags = 0;
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}
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void
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int
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tty_resize(struct tty *tty)
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{
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struct winsize ws;
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u_int sx, sy;
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if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
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tty->sx = ws.ws_col;
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tty->sy = ws.ws_row;
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sx = ws.ws_col;
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if (sx == 0)
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sx = 80;
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sy = ws.ws_row;
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if (sy == 0)
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sy = 24;
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} else {
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sx = 80;
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sy = 24;
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}
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if (tty->sx == 0)
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tty->sx = 80;
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if (tty->sy == 0)
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tty->sy = 24;
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if (sx == tty->sx && sy == tty->sy)
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return (0);
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tty->sx = sx;
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tty->sy = sy;
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tty->cx = UINT_MAX;
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tty->cy = UINT_MAX;
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tty->rupper = UINT_MAX;
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tty->rlower = UINT_MAX;
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/*
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* If the terminal has been started, reset the actual scroll region and
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* cursor position, as this may not have happened.
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*/
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if (tty->flags & TTY_STARTED) {
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tty_cursor(tty, 0, 0);
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tty_region(tty, 0, tty->sy - 1);
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}
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return (1);
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}
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int
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tty_open(struct tty *tty, const char *overrides, char **cause)
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{
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char out[64];
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int fd;
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if (debug_level > 3) {
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fd = open("tmux.out", O_WRONLY|O_CREAT|O_TRUNC, 0644);
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xsnprintf(out, sizeof out, "tmux-out-%ld.log", (long) getpid());
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fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644);
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if (fd != -1 && fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
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fatal("fcntl failed");
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tty->log_fd = fd;
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