CVSROOT:        /cvs
Module name:    src
Changes by:     n...@cvs.openbsd.org    2013/03/24 03:54:10

Modified files:
        usr.bin/tmux   : Makefile cfg.c client.c cmd-attach-session.c 
                         cmd-bind-key.c cmd-break-pane.c 
                         cmd-capture-pane.c cmd-choose-buffer.c 
                         cmd-choose-client.c cmd-choose-list.c 
                         cmd-choose-tree.c cmd-clear-history.c 
                         cmd-clock-mode.c cmd-command-prompt.c 
                         cmd-confirm-before.c cmd-copy-mode.c 
                         cmd-delete-buffer.c cmd-detach-client.c 
                         cmd-display-message.c cmd-display-panes.c 
                         cmd-find-window.c cmd-has-session.c 
                         cmd-if-shell.c cmd-join-pane.c cmd-kill-pane.c 
                         cmd-kill-server.c cmd-kill-session.c 
                         cmd-kill-window.c cmd-link-window.c 
                         cmd-list-buffers.c cmd-list-clients.c 
                         cmd-list-commands.c cmd-list-keys.c 
                         cmd-list-panes.c cmd-list-sessions.c 
                         cmd-list-windows.c cmd-list.c cmd-load-buffer.c 
                         cmd-lock-server.c cmd-move-window.c 
                         cmd-new-session.c cmd-new-window.c 
                         cmd-paste-buffer.c cmd-pipe-pane.c 
                         cmd-refresh-client.c cmd-rename-session.c 
                         cmd-rename-window.c cmd-resize-pane.c 
                         cmd-respawn-pane.c cmd-respawn-window.c 
                         cmd-rotate-window.c cmd-run-shell.c 
                         cmd-save-buffer.c cmd-select-layout.c 
                         cmd-select-pane.c cmd-select-window.c 
                         cmd-send-keys.c cmd-server-info.c 
                         cmd-set-buffer.c cmd-set-environment.c 
                         cmd-set-option.c cmd-show-environment.c 
                         cmd-show-messages.c cmd-show-options.c 
                         cmd-source-file.c cmd-split-window.c 
                         cmd-start-server.c cmd-string.c 
                         cmd-suspend-client.c cmd-swap-pane.c 
                         cmd-swap-window.c cmd-switch-client.c 
                         cmd-unbind-key.c cmd-unlink-window.c cmd.c 
                         control.c format.c key-bindings.c 
                         server-client.c server-fn.c server.c tmux.1 
                         tmux.c tmux.h window-choose.c 
Added files:
        usr.bin/tmux   : cmd-queue.c 

Log message:
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.

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