tmate/cmd-link-window.c
Nicholas Marriott 20636d956d Add a command queue to standardize and simplify commands that call other
commands and allow a command to block execution of subsequent
commands. This allows run-shell and if-shell to be synchronous which has
been much requested.

Each client has a default command queue and commands are consumed one at
a time from it. A command may suspend execution from the queue by
returning CMD_RETURN_WAIT and then resume it by calling cmd_continue() -
for example run-shell does this from the callback that is fired after
the job is freed.

When the command queue becomes empty, command clients are automatically
exited (unless attaching). A callback is also fired - this is used for
nested commands in, for example, if-shell which can block execution of
the client's cmdq until a new cmdq becomes empty.

Also merge all the old error/info/print functions together and lose the
old curclient/cmdclient distinction - a cmdq is bound to one client (or
none if in the configuration file), this is a command client if
c->session is NULL otherwise an attached client.
2013-03-24 09:54:10 +00:00

66 lines
1.8 KiB
C

/* $OpenBSD$ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdlib.h>
#include "tmux.h"
/*
* Link a window into another session.
*/
enum cmd_retval cmd_link_window_exec(struct cmd *, struct cmd_q *);
const struct cmd_entry cmd_link_window_entry = {
"link-window", "linkw",
"dks:t:", 0, 0,
"[-dk] " CMD_SRCDST_WINDOW_USAGE,
0,
NULL,
NULL,
cmd_link_window_exec
};
enum cmd_retval
cmd_link_window_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct session *src, *dst;
struct winlink *wl;
char *cause;
int idx, kflag, dflag;
if ((wl = cmd_find_window(cmdq, args_get(args, 's'), &src)) == NULL)
return (CMD_RETURN_ERROR);
if ((idx = cmd_find_index(cmdq, args_get(args, 't'), &dst)) == -2)
return (CMD_RETURN_ERROR);
kflag = args_has(self->args, 'k');
dflag = args_has(self->args, 'd');
if (server_link_window(src, wl, dst, idx, kflag, !dflag, &cause) != 0) {
cmdq_error(cmdq, "can't link window: %s", cause);
free(cause);
return (CMD_RETURN_ERROR);
}
recalculate_sizes();
return (CMD_RETURN_NORMAL);
}