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2011-01-26Simplify the way jobs work and drop the persist type, so all jobs areNicholas Marriott
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).
2011-01-04Clean up and simplify tmux command argument parsing.Nicholas Marriott
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.
2010-07-24When changing so that the client passes its stdout and stderr as well asNicholas Marriott
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.
2010-07-11Return the command client return code with MSG_EXIT now that MSG_ERROR andNicholas Marriott
MSG_PRINT are unused. New clients should be compatible with old tmux servers but vice versa may print an error.
2009-11-13Get rid of the ugly CMD_CHFLAG macro and use a const string (eg "dDU") in theNicholas Marriott
command entry structs and a couple of functions to check/set the flags.
2009-11-01Add a flag for jobs that shouldn't be freed after they've died and use it forNicholas Marriott
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 #().
2009-10-11Convert if-shell over to the background job framework as well.Nicholas Marriott
2009-09-21Use KEYC_NONE constant instead of 0 on init.Nicholas Marriott
2009-07-26Make all messages sent between the client and server fixed size.Nicholas Marriott
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.
2009-07-13Having fixed flags for single-character getopt options is a bit hard toNicholas Marriott
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.
2009-07-09New command, if-shell (alias if). Executes the tmux command in the secondNicholas Marriott
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.