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

1.1     ! nicm        1: /* $Id$ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
        !             5:  * Copyright (c) 2011 Marcel P. Partap <mpartap@gmx.net>
        !             6:  *
        !             7:  * Permission to use, copy, modify, and distribute this software for any
        !             8:  * purpose with or without fee is hereby granted, provided that the above
        !             9:  * copyright notice and this permission notice appear in all copies.
        !            10:  *
        !            11:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            12:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            13:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            14:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            15:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
        !            16:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
        !            17:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            18:  */
        !            19:
        !            20: #include <sys/types.h>
        !            21:
        !            22: #include <unistd.h>
        !            23:
        !            24: #include "tmux.h"
        !            25:
        !            26: /*
        !            27:  * Respawn a pane (restart the command). Kill existing if -k given.
        !            28:  */
        !            29:
        !            30: int    cmd_respawn_pane_exec(struct cmd *, struct cmd_ctx *);
        !            31:
        !            32: const struct cmd_entry cmd_respawn_pane_entry = {
        !            33:        "respawn-pane", "respawnp",
        !            34:        "kt:", 0, 1,
        !            35:        "[-k] " CMD_TARGET_PANE_USAGE " [command]",
        !            36:        0,
        !            37:        NULL,
        !            38:        NULL,
        !            39:        cmd_respawn_pane_exec
        !            40: };
        !            41:
        !            42: int
        !            43: cmd_respawn_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
        !            44: {
        !            45:        struct args             *args = self->args;
        !            46:        struct winlink          *wl;
        !            47:        struct window           *w;
        !            48:        struct window_pane      *wp;
        !            49:        u_int                    hlimit;
        !            50:        struct session          *s;
        !            51:        struct environ           env;
        !            52:        const char              *cmd;
        !            53:        char                    *cause;
        !            54:
        !            55:        if ((wl = cmd_find_pane(ctx, args_get(args, 't'), &s, &wp)) == NULL)
        !            56:                return (-1);
        !            57:        w = wl->window;
        !            58:
        !            59:        if (!args_has(self->args, 'k') && wp->fd != -1) {
        !            60:                ctx->error(ctx, "pane still active: %s:%u.%u",
        !            61:                    s->name, wl->idx, window_pane_index(w, wp));
        !            62:                return (-1);
        !            63:        }
        !            64:
        !            65:        environ_init(&env);
        !            66:        environ_copy(&global_environ, &env);
        !            67:        environ_copy(&s->environ, &env);
        !            68:        server_fill_environ(s, &env);
        !            69:
        !            70:        window_pane_reset_mode(wp);
        !            71:        screen_free(&wp->base);
        !            72:        hlimit = options_get_number(&s->options, "history-limit");
        !            73:        screen_init(&wp->base, wp->sx, wp->sy, hlimit);
        !            74:        wp->screen = &wp->base;
        !            75:        input_init(wp);
        !            76:
        !            77:        if (args->argc != 0)
        !            78:                cmd = args->argv[0];
        !            79:        else
        !            80:                cmd = NULL;
        !            81:        if (window_pane_spawn(wp, cmd, NULL, NULL, &env, s->tio, &cause) != 0) {
        !            82:                ctx->error(ctx, "respawn pane failed: %s", cause);
        !            83:                xfree(cause);
        !            84:                environ_free(&env);
        !            85:                return (-1);
        !            86:        }
        !            87:        wp->flags |= PANE_REDRAW;
        !            88:        server_status_window(w);
        !            89:
        !            90:        environ_free(&env);
        !            91:        return (0);
        !            92: }