Another server.el overhaul.
lib-src/emacsclient.c (xstrdup): New function. (quote_argument): Use xmalloc, not malloc. (main): Send environment variable values. lisp/server.el (server-clients): Documentation update. (server-ttys, server-frames): Removed. (server-client, server-client-get, server-client-set) (server-clients-with, server-add-client) (server-delete-client): New functions. (server-sentinel, server-handle-suspend-tty) (server-handle-delete-tty, server-handle-delete-frame) (server-start, server-process-filter, server-visit-files) (server-buffer-done, server-kill-buffer-query-function) (server-kill-emacs-query-function, server-switch-buffer): Use them. (server-log): Handle both kinds of client references. (server-start): Set up all hooks here. (server-process-filter): Cleanup. Store version in client. Handle -env commands for passing environment variable values. (server-buffer-done): Don't close clients that were created bufferless. (server-switch-buffer): Only look at frameless clients. Don't switch away from current buffer if there is no next-buffer. (server-unload-hook): Remove frame/tty hooks, too. lisp/server.el (server-quote-arg, server-unquote-arg) (server-process-filter, server-kill-buffer-query-function) (server-kill-emacs-query-function): Doc update. (server-buffer-done, server-switch-buffer): Use buffer-live-p, not buffer-name. git-archimport-id: email@example.com/emacs--multi-tty--0--patch-143
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