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tmux/cmd-attach-session.c

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Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
/* $OpenBSD$ */
/*
* 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>
xfree is not particularly helpful, remove it. From Thomas Adam.
2012-07-10 11:53:01 +00:00
#include <stdlib.h>
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
#include "tmux.h"
/*
* Attach existing session to the current terminal.
*/
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
enum cmd_retval cmd_attach_session_exec(struct cmd *, struct cmd_q *);
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
const struct cmd_entry cmd_attach_session_entry = {
"attach-session", "attach",
Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-04 00:42:46 +00:00
"drt:", 0, 0,
Support attaching a client read-only with a new -r flag to the attach-session command.
2010-02-06 22:55:31 +00:00
"[-dr] " CMD_TARGET_SESSION_USAGE,
Remove CMD_SENDENVIRON.
2013-10-10 12:09:34 +00:00
CMD_CANTNEST|CMD_STARTSERVER,
Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-04 00:42:46 +00:00
NULL,
cmd_attach_session_exec
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
};
Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 07:10:15 +00:00
enum cmd_retval
Add -A flag to new-session to make it behave like attach-session if the session exists. If -A is used, -D behaves like -d to attach-session.
2013-03-24 09:58:40 +00:00
cmd_attach_session(struct cmd_q *cmdq, const char* tflag, int dflag, int rflag)
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
{
Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-04 00:42:46 +00:00
struct session *s;
struct client *c;
const char *update;
Add a helper function to open the terminal for attach-/new-session.
2012-05-06 07:38:17 +00:00
char *cause;
Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-04 00:42:46 +00:00
u_int i;
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
Store sessions in an RB tree by name rather than a list, this is tidier and allows them to easily be shown sorted in various lists (list-sessions/choose-sessions). Keep a session index which is used in a couple of places internally but make it an ever-increasing number rather than filling in gaps with new sessions.
2010-12-21 22:37:59 +00:00
if (RB_EMPTY(&sessions)) {
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
cmdq_error(cmdq, "no sessions");
Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 07:10:15 +00:00
return (CMD_RETURN_ERROR);
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
}
Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-04 00:42:46 +00:00
Add -A flag to new-session to make it behave like attach-session if the session exists. If -A is used, -D behaves like -d to attach-session.
2013-03-24 09:58:40 +00:00
if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 07:10:15 +00:00
return (CMD_RETURN_ERROR);
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
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
if (cmdq->client == NULL)
Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 07:10:15 +00:00
return (CMD_RETURN_NORMAL);
Both of cmdclient and curclient CAN be NULL - if the command is executed from the configuration file. In this case, attach-session can't do much, and new-session should just assume -d.
2009-07-23 12:33:48 +00:00
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
if (cmdq->client->session != NULL) {
Add -A flag to new-session to make it behave like attach-session if the session exists. If -A is used, -D behaves like -d to attach-session.
2013-03-24 09:58:40 +00:00
if (dflag) {
Massive spaces->tabs and trailing whitespace cleanup, hopefully for the last time now I've configured emacs to make them displayed in really annoying colours...
2009-12-03 22:50:09 +00:00
/*
Tidy up new-session and attach-session and change them to work from inside tmux, switching the current client to the new or requested session. Written with Josh Elsasser.
2009-07-17 15:03:11 +00:00
* Can't use server_write_session in case attaching to
* the same session as currently attached to.
*/
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
c = ARRAY_ITEM(&clients, i);
if (c == NULL || c->session != s)
continue;
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
if (c == cmdq->client)
Tidy up new-session and attach-session and change them to work from inside tmux, switching the current client to the new or requested session. Written with Josh Elsasser.
2009-07-17 15:03:11 +00:00
continue;
server_write_client(c, MSG_DETACH, NULL, 0);
}
}
Massive spaces->tabs and trailing whitespace cleanup, hopefully for the last time now I've configured emacs to make them displayed in really annoying colours...
2009-12-03 22:50:09 +00:00
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
cmdq->client->session = s;
notify_attached_session_changed(cmdq->client);
Don't reset the activity timer for unattached sessions every second, this screws up the choice of most-recently-used. Instead, break the time update into a little function and do it when the session is attached. Pointed out by joshe@.
2011-01-01 01:12:09 +00:00
session_update_activity(s);
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
server_redraw_client(cmdq->client);
Only hide flags on the current window when the session is attached, from Roland Walker.
2012-01-21 06:13:16 +00:00
s->curw->flags &= ~WINLINK_ALERTFLAGS;
Tidy up new-session and attach-session and change them to work from inside tmux, switching the current client to the new or requested session. Written with Josh Elsasser.
2009-07-17 15:03:11 +00:00
} else {
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
if (server_client_open(cmdq->client, s, &cause) != 0) {
cmdq_error(cmdq, "open terminal failed: %s", cause);
xfree is not particularly helpful, remove it. From Thomas Adam.
2012-07-10 11:53:01 +00:00
free(cause);
Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 07:10:15 +00:00
return (CMD_RETURN_ERROR);
Tidy up new-session and attach-session and change them to work from inside tmux, switching the current client to the new or requested session. Written with Josh Elsasser.
2009-07-17 15:03:11 +00:00
}
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
Add -A flag to new-session to make it behave like attach-session if the session exists. If -A is used, -D behaves like -d to attach-session.
2013-03-24 09:58:40 +00:00
if (rflag)
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
cmdq->client->flags |= CLIENT_READONLY;
Support attaching a client read-only with a new -r flag to the attach-session command.
2010-02-06 22:55:31 +00:00
Add -A flag to new-session to make it behave like attach-session if the session exists. If -A is used, -D behaves like -d to attach-session.
2013-03-24 09:58:40 +00:00
if (dflag)
Tidy up new-session and attach-session and change them to work from inside tmux, switching the current client to the new or requested session. Written with Josh Elsasser.
2009-07-17 15:03:11 +00:00
server_write_session(s, MSG_DETACH, NULL, 0);
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
Infrastructure and commands to manage the environment for processes started within tmux. There is a global environment, copied from the external environment when the server is started and each sesssion has an (initially empty) session environment which overrides it. New commands set-environment and show-environment manipulate or display the environments. A new session option, update-environment, is a space-separated list of variables which are updated from the external environment into the session environment every time a new session is created - the default is DISPLAY.
2009-08-08 21:52:43 +00:00
update = options_get_string(&s->options, "update-environment");
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
environ_update(update, &cmdq->client->environ, &s->environ);
Infrastructure and commands to manage the environment for processes started within tmux. There is a global environment, copied from the external environment when the server is started and each sesssion has an (initially empty) session environment which overrides it. New commands set-environment and show-environment manipulate or display the environments. A new session option, update-environment, is a space-separated list of variables which are updated from the external environment into the session environment every time a new session is created - the default is DISPLAY.
2009-08-08 21:52:43 +00:00
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
cmdq->client->session = s;
notify_attached_session_changed(cmdq->client);
session_update_activity(s);
server_redraw_client(cmdq->client);
Only hide flags on the current window when the session is attached, from Roland Walker.
2012-01-21 06:13:16 +00:00
s->curw->flags &= ~WINLINK_ALERTFLAGS;
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
server_write_ready(cmdq->client);
cmdq->client_exit = 0;
Tidy up new-session and attach-session and change them to work from inside tmux, switching the current client to the new or requested session. Written with Josh Elsasser.
2009-07-17 15:03:11 +00:00
}
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
recalculate_sizes();
Only need to chmod +x or -x the socket when a client is created, lost or attached, rather than every event loop.
2009-11-11 08:00:42 +00:00
server_update_socket();
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
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
return (CMD_RETURN_NORMAL);
Import tmux, a terminal multiplexor allowing (among other things) a single terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
2009-06-01 22:58:49 +00:00
}
Add -A flag to new-session to make it behave like attach-session if the session exists. If -A is used, -D behaves like -d to attach-session.
2013-03-24 09:58:40 +00:00
enum cmd_retval
cmd_attach_session_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
return (cmd_attach_session(cmdq, args_get(args, 't'),
args_has(args, 'd'), args_has(args, 'r')));
}
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