cmd-respawn-window.c revision 1.2 
1/* $OpenBSD: cmd-respawn-window.c,v 1.2 2009/07/13 23:11:35 nicm Exp $ */
2
3/*
4 * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#include <sys/types.h>
20
21#include <unistd.h>
22
23#include "tmux.h"
24
25/*
26 * Respawn a window (restart the command). Kill existing if -k given.
27 */
28
29int	cmd_respawn_window_exec(struct cmd *, struct cmd_ctx *);
30
31const struct cmd_entry cmd_respawn_window_entry = {
32	"respawn-window", "respawnw",
33	"[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
34	CMD_ARG01, CMD_CHFLAG('k'),
35	cmd_target_init,
36	cmd_target_parse,
37	cmd_respawn_window_exec,
38	cmd_target_send,
39	cmd_target_recv,
40	cmd_target_free,
41	cmd_target_print
42};
43
44int
45cmd_respawn_window_exec(struct cmd *self, struct cmd_ctx *ctx)
46{
47	struct cmd_target_data	*data = self->data;
48	struct winlink		*wl;
49	struct window		*w;
50	struct window_pane	*wp;
51	struct session		*s;
52	const char	       **env;
53	char		 	*cause;
54
55	if ((wl = cmd_find_window(ctx, data->target, &s)) == NULL)
56		return (-1);
57	w = wl->window;
58
59	if (!(data->chflags & CMD_CHFLAG('k'))) {
60		TAILQ_FOREACH(wp, &w->panes, entry) {
61			if (wp->fd == -1)
62				continue;
63			ctx->error(ctx,
64			    "window still active: %s:%d", s->name, wl->idx);
65			return (-1);
66		}
67	}
68
69	env = server_fill_environ(s);
70
71	wp = TAILQ_FIRST(&w->panes);
72	TAILQ_REMOVE(&w->panes, wp, entry);
73 	window_destroy_panes(w);
74	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
75	window_pane_resize(wp, w->sx, w->sy);
76	if (window_pane_spawn(wp, data->arg, NULL, env, &cause) != 0) {
77		ctx->error(ctx, "respawn window failed: %s", cause);
78		xfree(cause);
79		return (-1);
80	}
81	screen_reinit(&wp->base);
82
83	recalculate_sizes();
84	server_redraw_window(w);
85
86	return (0);
87}
88