Commit Graph

20 Commits

Author SHA1 Message Date
Nicholas Marriott
293e331d69 Add functions to allocate and free command contexts rather than doing it all on
the stack.
2013-02-18 23:20:21 +00:00
Tiago Cunha
db27dc82f0 Sync OpenBSD patchset 1159:
Remove dead code, from Sean Estabrooks.
2012-08-12 19:30:54 +00:00
Tiago Cunha
1f5e6e35d5 Sync OpenBSD patchset 1151:
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 19:37:32 +00:00
Tiago Cunha
a432fcd306 Sync OpenBSD patchset 1150:
xfree is not particularly helpful, remove it. From Thomas Adam.
2012-07-11 19:34:16 +00:00
Tiago Cunha
3f5ec24b5a Sync OpenBSD patchset 972:
Didn't really think the else behaviour through - requiring argv to
contain "else" is silly so just omit that, also some manpage
tweaks. From Tiago Cunha.
2011-10-31 13:55:10 +00:00
Tiago Cunha
9b48c77493 Sync OpenBSD patchset 963:
Add an else clause for if-shell, from "arno-" on SourceForge.
2011-10-23 15:00:41 +00:00
Tiago Cunha
213544a30a $Id$ not $OpenBSD$. 2011-05-29 15:13:36 +00:00
Tiago Cunha
28427efbac Sync OpenBSD patchset 819:
Nuke a redundant if statement, from Tiago Cunha.
2011-05-26 20:12:07 +00:00
Tiago Cunha
3d7b8105e1 Sync OpenBSD patchset 855:
Simplify the way jobs work and drop the persist type, so all jobs are
fire-and-forget.

Status jobs now managed with two trees of output (new and old), rather
than storing the output in the jobs themselves. When the status line is
processed any jobs which don't appear in the new tree are started and
the output from the old tree displayed. When a job finishes it updates
the new tree with its output and that is used for any subsequent
redraws. When the status interval expires, the new tree is moved to the
old so that all jobs are run again.

This fixes the "#(echo %H:%M:%S)" problem which would lead to thousands
of identical persistent jobs and high memory use (this can still be
achieved by adding "sleep 30" but that is much less likely to happen by
accident).
2011-02-15 15:20:03 +00:00
Tiago Cunha
1df427bc7b Sync OpenBSD patchset 829:
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.
2011-01-07 14:45:34 +00:00
Tiago Cunha
d7bae0edce Sync OpenBSD patchset 741:
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.
2010-08-09 21:44:25 +00:00
Tiago Cunha
ad6a528f61 Sync OpenBSD patchset 734:
Return the command client return code with MSG_EXIT now that MSG_ERROR and
MSG_PRINT are unused.

New clients should be compatible with old tmux servers but vice versa may print
an error.
2010-07-17 14:36:41 +00:00
Tiago Cunha
e35f5b35bd Sync OpenBSD patchset 539:
Get rid of the ugly CMD_CHFLAG macro and use a const string (eg "dDU") in the
command entry structs and a couple of functions to check/set the flags.
2009-11-14 17:56:39 +00:00
Tiago Cunha
053e40572c Sync OpenBSD patchset 475:
Add a flag for jobs that shouldn't be freed after they've died and use it for
status jobs, then only kill those jobs when status-left, status-right or
set-titles-string is changed.

Fixes problems with changing options from inside #().
2009-11-02 21:38:27 +00:00
Tiago Cunha
a053aeddf8 Sync OpenBSD patchset 386:
Convert if-shell over to the background job framework as well.
2009-10-12 00:29:03 +00:00
Tiago Cunha
31ccf2f813 Sync OpenBSD patchset 342:
Use KEYC_NONE constant instead of 0 on init.
2009-09-22 14:06:40 +00:00
Tiago Cunha
d637cb33da Sync OpenBSD patchset 181:
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.
2009-07-28 22:12:16 +00:00
Nicholas Marriott
097b96ea44 Having fixed flags for single-character getopt options is a bit hard to
maintain and is only going to get worse as more are used. So instead, add a new
uint64_t member to cmd_entry which is a bitmask of upper and lowercase options
accepted by the command.

This means new single character options can be used without the need to add it
explicitly to the list.
2009-07-14 06:43:33 +00:00
Nicholas Marriott
7e8ff69a14 Fix $Id$. 2009-07-09 18:16:36 +00:00
Nicholas Marriott
eee3dd297e New command, if-shell (alias if). Executes the tmux command in the second
argument if the shell command in the first succeeds, for example:

       if "[ -e ~/.tmux.conf.alt ]" "source .tmux.conf.alt"

Written by Tiago Cunha, many thanks.
2009-07-09 18:14:18 +00:00