tmux/cmd-display-message.c
nicm 0ccfb61bb0 In order that people can use formats like #D in #() in the status line
and not have to wait for an update when they change pane, we allow
commands to run more than once a second if the expanded form
changes. Unfortunately this can mean them being run far too often
(pretty much continually) when multiple clients exist, because some
formats (including #D) will always differ between clients.

To avoid this, give each client its own tree of jobs which means that
the same command will be different instances for each client - similar
to how we have the tag to separate commands for different panes.

GitHub issue 889; test case reported by Paul Johnson.
2017-05-01 12:20:55 +00:00

90 lines
2.5 KiB
C

/* $OpenBSD$ */
/*
* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
*
* 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 <time.h>
#include "tmux.h"
/*
* Displays a message in the status line.
*/
#define DISPLAY_MESSAGE_TEMPLATE \
"[#{session_name}] #{window_index}:" \
"#{window_name}, current pane #{pane_index} " \
"- (%H:%M %d-%b-%y)"
static enum cmd_retval cmd_display_message_exec(struct cmd *,
struct cmdq_item *);
const struct cmd_entry cmd_display_message_entry = {
.name = "display-message",
.alias = "display",
.args = { "c:pt:F:", 0, 1 },
.usage = "[-p] [-c target-client] [-F format] "
CMD_TARGET_PANE_USAGE " [message]",
.target = { 't', CMD_FIND_PANE, 0 },
.flags = CMD_AFTERHOOK,
.exec = cmd_display_message_exec
};
static enum cmd_retval
cmd_display_message_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
struct client *c;
struct session *s = item->target.s;
struct winlink *wl = item->target.wl;
struct window_pane *wp = item->target.wp;
const char *template;
char *msg;
struct format_tree *ft;
if (args_has(args, 'F') && args->argc != 0) {
cmdq_error(item, "only one of -F or argument must be given");
return (CMD_RETURN_ERROR);
}
c = cmd_find_client(item, args_get(args, 'c'), 1);
template = args_get(args, 'F');
if (args->argc != 0)
template = args->argv[0];
if (template == NULL)
template = DISPLAY_MESSAGE_TEMPLATE;
ft = format_create(item->client, item, FORMAT_NONE, 0);
format_defaults(ft, c, s, wl, wp);
msg = format_expand_time(ft, template, time(NULL));
if (args_has(self->args, 'p'))
cmdq_print(item, "%s", msg);
else if (c != NULL)
status_message_set(c, "%s", msg);
free(msg);
format_free(ft);
return (CMD_RETURN_NORMAL);
}