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Annotation of src/usr.bin/tmux/cmd-respawn-window.c, Revision 1.1

1.1     ! nicm        1: /* $OpenBSD$ */
        !             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]",
        !            34:        CMD_ARG01|CMD_KFLAG,
        !            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:
        !            44: int
        !            45: cmd_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->flags & CMD_KFLAG)) {
        !            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: }