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Annotation of src/usr.bin/tmux/cmd-respawn-window.c, Revision 1.10

1.10    ! nicm        1: /* $OpenBSD: cmd-respawn-window.c,v 1.9 2009/09/16 12:35:04 nicm Exp $ */
1.1       nicm        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:
                     29: int    cmd_respawn_window_exec(struct cmd *, struct cmd_ctx *);
                     30:
                     31: const struct cmd_entry cmd_respawn_window_entry = {
                     32:        "respawn-window", "respawnw",
                     33:        "[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
1.2       nicm       34:        CMD_ARG01, CMD_CHFLAG('k'),
1.1       nicm       35:        cmd_target_init,
                     36:        cmd_target_parse,
                     37:        cmd_respawn_window_exec,
                     38:        cmd_target_free,
                     39:        cmd_target_print
                     40: };
                     41:
                     42: int
                     43: cmd_respawn_window_exec(struct cmd *self, struct cmd_ctx *ctx)
                     44: {
                     45:        struct cmd_target_data  *data = self->data;
                     46:        struct winlink          *wl;
                     47:        struct window           *w;
                     48:        struct window_pane      *wp;
                     49:        struct session          *s;
1.6       nicm       50:        struct environ           env;
1.1       nicm       51:        char                    *cause;
                     52:
                     53:        if ((wl = cmd_find_window(ctx, data->target, &s)) == NULL)
                     54:                return (-1);
                     55:        w = wl->window;
                     56:
1.2       nicm       57:        if (!(data->chflags & CMD_CHFLAG('k'))) {
1.1       nicm       58:                TAILQ_FOREACH(wp, &w->panes, entry) {
                     59:                        if (wp->fd == -1)
                     60:                                continue;
                     61:                        ctx->error(ctx,
                     62:                            "window still active: %s:%d", s->name, wl->idx);
                     63:                        return (-1);
                     64:                }
                     65:        }
                     66:
1.6       nicm       67:        environ_init(&env);
                     68:        environ_copy(&global_environ, &env);
                     69:        environ_copy(&s->environ, &env);
                     70:        server_fill_environ(s, &env);
1.1       nicm       71:
                     72:        wp = TAILQ_FIRST(&w->panes);
                     73:        TAILQ_REMOVE(&w->panes, wp, entry);
1.3       nicm       74:        layout_free(w);
1.1       nicm       75:        window_destroy_panes(w);
                     76:        TAILQ_INSERT_HEAD(&w->panes, wp, entry);
                     77:        window_pane_resize(wp, w->sx, w->sy);
1.8       nicm       78:        if (window_pane_spawn(
1.9       nicm       79:            wp, data->arg, NULL, NULL, &env, s->tio, &cause) != 0) {
1.1       nicm       80:                ctx->error(ctx, "respawn window failed: %s", cause);
                     81:                xfree(cause);
1.6       nicm       82:                environ_free(&env);
1.10    ! nicm       83:                server_destroy_pane(wp);
1.1       nicm       84:                return (-1);
                     85:        }
1.3       nicm       86:        layout_init(w);
1.1       nicm       87:        screen_reinit(&wp->base);
1.4       nicm       88:        window_set_active_pane(w, wp);
1.1       nicm       89:
                     90:        recalculate_sizes();
                     91:        server_redraw_window(w);
                     92:
1.6       nicm       93:        environ_free(&env);
1.1       nicm       94:        return (0);
                     95: }