Commit Graph

125 Commits

Author SHA1 Message Date
nicm
a5d4b7f3d9 Some more long lines. 2014-04-17 14:45:49 +00:00
nicm
f835be4bb2 Style nit - no space between function name and bracket. 2014-02-14 13:59:01 +00:00
nicm
282c5f9644 Alter how tmux handles the working directory to internally use file
descriptors rather than strings.

- Each session still has a current working directory.

- New sessions still get their working directory from the client that
  created them or its attached session if any.

- New windows are created by default in the session working directory.

- The -c flag to new, neww, splitw allows the working directory to be
  overridden.

- The -c flag to attach let's the session working directory be changed.

- The default-path option has been removed.

To get the equivalent to default-path '.', do:

        bind c neww -c $PWD

To get the equivalent of default-path '~', do:

        bind c neww -c ~

This also changes the client identify protocol to be a set of messages rather
than one as well as some other changes that should make it easier to make
backwards-compatible protocol changes in future.
2013-10-10 12:26:34 +00:00
nicm
10c38436aa Similarly for MSG_COMMAND - allow full imsg limit not arbitrary 2048. 2013-10-10 12:13:56 +00:00
nicm
d3830e622f Grouped sessions were being leaked on destroy, correctly free them. 2013-10-10 11:46:28 +00:00
Nicholas Marriott
064124cc5f When the session option renumber-window is used, ensure we iterate over
all sessions in that group when the winlinks are reordered, otherwise
the winlink lists are out of sync with one another. From Thomas Adam.
2013-07-05 14:52:33 +00:00
Nicholas Marriott
46c7dbef0f Call recalculate_sizes() after killing window in case it is in a grouped
session, from Daniel Ralston.
2013-04-22 13:35:18 +00:00
Nicholas Marriott
e4c0730bf1 Use single stdout and stderr for control clients. 2013-03-25 11:36:59 +00:00
Nicholas Marriott
6fee3e9e4b Rename session idx to session id throughout and add $ prefix to targets
to use it, extended from a diff from George Nachman.
2013-03-25 10:11:45 +00:00
Nicholas Marriott
c71844de63 Add resize-pane -Z to temporary zoom the active pane to occupy the full
window or unzoom (restored to the normal layout) if it already zoomed,
bound to C-b z by default. The pane is unzoomed on pretty much any
excuse whatsoever.

We considered making this a new layout but the requirements are quite
different from layouts so decided it is better as a special case. Each
current layout cell is saved, a temporary one-cell layout generated and
all except the active pane set to NULL.

Prompted by suggestions and scripts from several. Thanks to Aaron Jensen
and Thiago Padilha for testing an earlier version.
2013-03-24 09:57:59 +00:00
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
Nicholas Marriott
29613f2f31 Prevent lock on control clients, not on others. 2013-03-22 10:42:55 +00:00
Nicholas Marriott
8d59b189cc No more lint means no more ARGSUSED. 2013-03-22 10:31:22 +00:00
Nicholas Marriott
c5504af4a6 Add various checks to turn off bits that can't work in control mode
(such as lock).
2013-03-21 18:47:01 +00:00
Nicholas Marriott
2e43372d0b If stdin in the client is enable immediately, tmux will eat anything
sent to stdin before it is needed, which can be inconvenient (eg pasting
commands). Instead, start with stdin disabled and reuse MSG_STDIN from
server->client to mean that stdin should be enabled. Based on a diff
from Chris Johnsen.
2012-09-03 08:48:57 +00:00
Nicholas Marriott
df912e3540 xfree is not particularly helpful, remove it. From Thomas Adam. 2012-07-10 11:53:01 +00:00
Nicholas Marriott
2942eca895 Add a skeleton mode to tmux (called "control mode") that let's tmux
commands be sent and output received on stdout. This can be used to
integrate with other terminal emulators and should allow some other
things to be made simpler later. More to come so doesn't do much yet and
deliberately not documented.
2012-06-18 13:16:42 +00:00
Nicholas Marriott
682884edc5 Add a helper function to send ready message. 2012-05-22 10:56:48 +00:00
Nicholas Marriott
7a4679a17f Instead of passing stdin/stdout/stderr file descriptors over imsg and
handling them in the server, handle them in the client and pass buffers
over imsg. This is much tidier for some upcoming changes and the
performance hit isn't critical.

The tty fd is still passed to the server as before.

This bumps the tmux protocol version so new clients and old servers are
incompatible.
2012-05-21 18:27:42 +00:00
Nicholas Marriott
a6c22d650b Add a flag to move-window to renumber the windows in a session (closing
any gaps) and add an option to do this automatically each time a window
is killed. From Thomas Adam.
2012-04-29 17:20:01 +00:00
Nicholas Marriott
46210344a6 Add notify hooks for various events, the functions are currently empty
stubs but will be filled in for control mode later. From George Nachman.
2012-03-17 22:35:09 +00:00
Nicholas Marriott
d3c842d367 Check event_initialized before event_del if event may not have been set
up; libevent2 complains about this. Reported by Moriyoshi Koizumi.
2012-03-17 18:24:07 +00:00
Nicholas Marriott
9bbc63ed65 Call bufferevent_free before closing file descriptor associated with it
or bugs in $EventMechanism on $OtherOS makes libevent get it's knickers
in a twist. From Dylan Alex Simon.
2012-01-29 02:22:11 +00:00
Nicholas Marriott
f0aad68aee Support for \e[3J to clear the history. Also send the corresponding
terminfo code (E3) before locking.
2011-10-23 10:16:14 +00:00
Nicholas Marriott
5985143813 Mark dead panes with some text saying they are dead, suggested by and
with help from Randy Stauner.
2011-09-05 23:40:51 +00:00
Nicholas Marriott
b8023044c3 Set $TMUX without the session when background jobs are run. 2011-01-23 11:03:43 +00:00
Nicholas Marriott
04b32fa734 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
Nicholas Marriott
d3d25365f1 server_kill_window can modify the RB tree so don't use RB_FOREACH, fixes
crash seen by Dan Harnett.
2010-12-23 21:56:38 +00:00
Nicholas Marriott
acf13ce978 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
Nicholas Marriott
9358cfaf4a Use pointer rather than index for the client's last session. 2010-12-20 00:17:22 +00:00
Nicholas Marriott
51487ed22f Track the last session for a client and add a flag to switch-client and
a key binding (L) to move a client back to its last session.
2010-12-11 18:39:25 +00:00
Nicholas Marriott
7aef2994e4 Set cause when failing due to linking a window to itself, from Martin
Pieuchot.
2010-10-09 12:58:00 +00:00
Nicholas Marriott
08bcd6978c Skip NULL entries in the sessions list when choosing the next session,
from Simon Olofsson.
2010-10-05 17:15:21 +00:00
Nicholas Marriott
9a7cde0c9b Two new options:
- server option "exit-unattached" makes the server exit when no clients
  are attached, even if sessions are present;

- session option "destroy-unattached" destroys a session once no clients
  are attached to it.

These are useful for preventing tmux remaining in the background where
it is undesirable and when using tmux as a login shell to keep a limit
on new sessions.
2010-09-26 20:43:30 +00:00
Nicholas Marriott
cc474b4ede Treat trying to link or move to the same window as an error to avoid
removing it accidentally.
2010-08-11 07:36:23 +00:00
Nicholas Marriott
c87187f913 When changing so that the client passes its stdout and stderr as well as
stdin up to the server, I forgot one essential point - the tmux server
could now be both the producer and consumer. This happens when tmux is
run inside tmux, as well as when piping tmux commands together.

So, using stdio(3) was a bad idea - if sufficient data was written, this
could block in write(2). When that happened and the server was both
producer and consumer, it deadlocks.

Change to use libevent bufferevents for the client stdin, stdout and
stderr instead. This is trivial enough for output but requires a
callback mechanism to trigger when stdin is finished.

This relies on the underlying polling mechanism for libevent to work
with whatever devices to which the user could redirect stdin, stdout or
stderr, hence the change to use poll(2) over kqueue(2) for tmux.
2010-07-24 20:11:59 +00:00
Nicholas Marriott
26524c99f6 New option, detach-on-destroy, to set what happens to a client when the session
it is attached to is destroyed. If on (the default), it is detached; if off, it
is switched to the most recently active session.
2010-06-27 00:22:22 +00:00
Nicholas Marriott
34464da8d3 Use server_destroy_session() for kill-session. 2010-06-26 23:55:50 +00:00
Nicholas Marriott
e63f0546a1 Having a list of winlinks->alerts for each session is stupid, just store
the alert flags directly in the winlink itself.
2010-06-21 01:27:46 +00:00
Nicholas Marriott
a6d52405a8 If remain-on-exit is set, both the error callback and a SIGCHLD could
destroy the same pane (because the first one doesn't remove it from the
list of panes), causing the pane bufferevent to be freed twice. So don't
free it if the fd has already been set to -1, from Romain Francoise.
2010-04-17 23:25:16 +00:00
Nicholas Marriott
c550e66e85 Dead functions, lint. 2010-03-22 19:18:46 +00:00
Nicholas Marriott
b9ade6e6bb When a window is destroyed, remove all links to it from each session rather
than just the first. Reported by Robin Lee Powell.
2010-01-23 21:07:31 +00:00
Nicholas Marriott
7e4f8b45b6 Options to set the colour of the pane borders, with different colours for the
active pane.
2010-01-03 12:51:05 +00:00
Nicholas Marriott
4feee126b8 Fix a couple of problems with grouped sessions reported by danh: redraw
properly and choose the correct last window after a window is killed.
2009-12-22 10:20:08 +00:00
Nicholas Marriott
15a64b805e 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
Nicholas Marriott
4ca857e0e9 Remove a couple of unused arguments where possible, and add /* ARGSUSED */ to
the rest to reduce lint output.
2009-11-26 21:37:13 +00:00
Nicholas Marriott
8e47966225 Destroy panes immediately rather than checking them all every loop. 2009-11-13 17:33:07 +00:00
Nicholas Marriott
b1264a7416 Use timeout events for the identify and message timers. 2009-11-04 23:29:42 +00:00
Nicholas Marriott
b3c4956efe Don't reenlist the client imsg event every loop, instead have a small function
to it and call it after the event triggers or after a imsg is added.
2009-11-04 23:12:43 +00:00
Nicholas Marriott
fbb030d7f7 Set the current window pointer to NULL when killing a winlink that is to be
replaced with link-window -k. This prevents it being pushed onto the last
window stack and causing a use-after-free.

Only took me an hour to find this :-/...
2009-10-11 10:39:27 +00:00
Nicholas Marriott
9dd72b9583 Add "grouped sessions" which have independent name, options, current window and
so on but where the linked windows are synchronized (ie creating, killing
windows and so on are mirrored between the sessions). A grouped session may be
created by passing -t to new-session.

Had this around for a while, tested by a couple of people.
2009-10-10 10:02:48 +00:00
Nicholas Marriott
c734789b18 Check for already locked/suspended clients in server_lock_client rather than
its callers.
2009-10-04 10:55:30 +00:00
Nicholas Marriott
8fa1858a2c New lock-client and lock-session commands to lock an individual client or all
clients attached to a session respectively.
2009-09-24 14:17:09 +00:00
Nicholas Marriott
b01dcd7971 Remove the internal tmux locking and instead detach each client and run the
command specified by a new option "lock-command" (by default "lock -np") in
each client.

This means each terminal has to be unlocked individually but simplifies the
code and allows the system password to be used to unlock.

Note that the set-password command is gone, so it will need to be removed from
configuration files, and the -U command line flag has been removed.

This is the third protocol version change so again it is best to stop the tmux
server before upgrading.
2009-09-23 06:18:47 +00:00
Nicholas Marriott
9b5f5ed8e8 Move some common and untidy code for window link/unlink into generic functions
instead of duplicating it in move/link window..
2009-09-20 17:27:18 +00:00
Nicholas Marriott
273f1b385c Regularise some fatal messages. 2009-09-20 14:58:12 +00:00
Nicholas Marriott
8cb8a0da8d Tidy some common code for destroying sessions into a new function. 2009-09-12 13:01:19 +00:00
Nicholas Marriott
ffab22bb35 Only redraw all clients once when the backoff timer expires rather than every
second all the time.

Reported by Simon Nicolussi.
2009-09-05 17:42:16 +00:00
Nicholas Marriott
c5ac2579ba When incorrect passwords are entered, behave similarly to login(1) and backoff
for a bit. Based on a diff from martynas@.
2009-09-02 16:38:35 +00:00
Nicholas Marriott
f8aa5821be Use "Password:" with no space for password prompts and don't display a *s for
the password, like pretty much everything else. From martynas@ with minor
tweaks by me.
2009-09-01 09:11:05 +00:00
Nicholas Marriott
04319964b9 Add a new display-panes command, with two options (display-panes-colour and
display-panes-time), which displays a visual indication of the number of each
pane.
2009-08-31 20:46:19 +00:00
Nicholas Marriott
f0635717b3 Switch tmux to use imsg. This is the last major change to make the
client-server protocol more resilient and make the protocol versioning work
properly. In future, the only things requiring a protocol version bump will be
changes in the message structs, and (when both client and server have this
change) mixing different versions should nicely report an error message.

As a side effect this also makes the code tidier, fixes a problem with the way
errors reported during server startup were handled, and supports fd passing
(which will be used in future).

Looked over by eric@, thanks.

Please note that mixing a client with this change with an older server or vice
versa may cause tmux to crash or hang - tmux should be completely exited before
upgrading.
2009-08-11 17:18:35 +00:00
Nicholas Marriott
6491274f60 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
Nicholas Marriott
e89e70e715 If there is an error in the configuration file, don't just exit(1) as this can
cause the client to hang. Instead, send the error message, then mark the client
as bad and start a normal shutdown so the server exits once the error is
written.

This also allows some code duplicating daemon(3) to be trimmed and logging to
begin earlier.

Prompted by Theo noticing the behaviour on error wasn't documented.
2009-08-07 15:39:10 +00:00
Nicholas Marriott
c1d6d7ac6b Rename struct hdrtype to msgtype which is a better name and can be used even
when struct hdr disappears.
2009-07-29 14:17:26 +00:00
Nicholas Marriott
34a82e7629 Make all messages sent between the client and server fixed size.
This is the first of two changes to make the protocol more resilient and less
sensitive to other changes in the code, particularly with commands. The client
now packs argv into a buffer and sends it to the server for parsing, rather
than doing it itself and sending the parsed command data.

As a side-effect this also removes a lot of now-unused command marshalling
code.

Mixing a server without this change and a client with or vice versa will cause
tmux to hang or crash, please ensure that tmux is entirely killed before
upgrading.
2009-07-26 12:58:44 +00:00
Nicholas Marriott
54afcfbfb4 Display the number of failed password attempts (if any) when the server is
locked. From Tom Doherty.
2009-07-20 14:37:51 +00:00
Nicholas Marriott
0ca6f667e3 Make it so using kill-pane to destroy the last pane in a window destroys the
window instead of being an error.
2009-07-17 20:37:03 +00:00
Nicholas Marriott
d3b5c242cc Oops, it is always a good idea to get arguments the right way round. 2009-07-17 07:09:46 +00:00
Nicholas Marriott
65deba3a35 Memory could be leaked if a second prompt or message appeared while another was
still present, so add a separate prompt free callback and make the _clear
function responsible for calling it if necessary (rather than the individual
prompt callbacks). Also make both messages and prompts clear any existing when
a new is set.

In addition, the screen could be modified while the prompt is there, restore
the redraw-entire-screen behaviour on prompt clear; add a comment as a
reminder.
2009-07-17 06:13:27 +00:00
Nicholas Marriott
4a9b01eb0d Need time.h not sys/time.h for time(2). 2009-07-14 06:59:06 +00:00
Nicholas Marriott
daa1faa905 Add a default-terminal option to set the starting value of $TERM in new
windows.

This is "screen" by default and must be either that or something closely
related. This does makes it easier to customise it if necessary.
2009-07-10 05:50:54 +00:00
Nicholas Marriott
4c5c125173 When unlocking the server, don't try to clear the prompt on clients without a
prompt (such as the one issuing the unlock request).

This caused the server to die if the wrong password was entered when unlocking
from the command line with -U (nasty).
2009-06-30 13:40:30 +00:00
Nicholas Marriott
1675ddb4d1 Miscellaneous unused functions, including one which was basically a
duplicate. Found by lint.
2009-06-25 06:15:04 +00:00
Nicholas Marriott
35876eaab9 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