| 1 | ;;; esh-proc.el --- process management |
| 2 | |
| 3 | ;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
| 4 | ;; 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
| 5 | |
| 6 | ;; Author: John Wiegley <johnw@gnu.org> |
| 7 | |
| 8 | ;; This file is part of GNU Emacs. |
| 9 | |
| 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
| 11 | ;; it under the terms of the GNU General Public License as published by |
| 12 | ;; the Free Software Foundation, either version 3 of the License, or |
| 13 | ;; (at your option) any later version. |
| 14 | |
| 15 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | ;; GNU General Public License for more details. |
| 19 | |
| 20 | ;; You should have received a copy of the GNU General Public License |
| 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 22 | |
| 23 | ;;; Commentary: |
| 24 | |
| 25 | ;;; Code: |
| 26 | |
| 27 | (provide 'esh-proc) |
| 28 | |
| 29 | (eval-when-compile |
| 30 | (require 'eshell) |
| 31 | (require 'esh-util)) |
| 32 | |
| 33 | (defgroup eshell-proc nil |
| 34 | "When Eshell invokes external commands, it always does so |
| 35 | asynchronously, so that Emacs isn't tied up waiting for the process to |
| 36 | finish." |
| 37 | :tag "Process management" |
| 38 | :group 'eshell) |
| 39 | |
| 40 | ;;; User Variables: |
| 41 | |
| 42 | (defcustom eshell-proc-load-hook '(eshell-proc-initialize) |
| 43 | "A hook that gets run when `eshell-proc' is loaded." |
| 44 | :type 'hook |
| 45 | :group 'eshell-proc) |
| 46 | |
| 47 | (defcustom eshell-process-wait-seconds 0 |
| 48 | "The number of seconds to delay waiting for a synchronous process." |
| 49 | :type 'integer |
| 50 | :group 'eshell-proc) |
| 51 | |
| 52 | (defcustom eshell-process-wait-milliseconds 50 |
| 53 | "The number of milliseconds to delay waiting for a synchronous process." |
| 54 | :type 'integer |
| 55 | :group 'eshell-proc) |
| 56 | |
| 57 | (defcustom eshell-done-messages-in-minibuffer t |
| 58 | "If non-nil, subjob \"Done\" messages will display in minibuffer." |
| 59 | :type 'boolean |
| 60 | :group 'eshell-proc) |
| 61 | |
| 62 | (defcustom eshell-delete-exited-processes t |
| 63 | "If nil, process entries will stick around until `jobs' is run. |
| 64 | This variable sets the buffer-local value of `delete-exited-processes' |
| 65 | in Eshell buffers. |
| 66 | |
| 67 | This variable causes Eshell to mimic the behavior of bash when set to |
| 68 | nil. It allows the user to view the exit status of a completed subjob |
| 69 | \(process) at their leisure, because the process entry remains in |
| 70 | memory until the user examines it using \\[list-processes]. |
| 71 | |
| 72 | Otherwise, if `eshell-done-messages-in-minibuffer' is nil, and this |
| 73 | variable is set to t, the only indication the user will have that a |
| 74 | subjob is done is that it will no longer appear in the |
| 75 | \\[list-processes\\] display. |
| 76 | |
| 77 | Note that Eshell will have to be restarted for a change in this |
| 78 | variable's value to take effect." |
| 79 | :type 'boolean |
| 80 | :group 'eshell-proc) |
| 81 | |
| 82 | (defcustom eshell-reset-signals |
| 83 | "^\\(interrupt\\|killed\\|quit\\|stopped\\)" |
| 84 | "If a termination signal matches this regexp, the terminal will be reset." |
| 85 | :type 'regexp |
| 86 | :group 'eshell-proc) |
| 87 | |
| 88 | (defcustom eshell-exec-hook nil |
| 89 | "Called each time a process is exec'd by `eshell-gather-process-output'. |
| 90 | It is passed one argument, which is the process that was just started. |
| 91 | It is useful for things that must be done each time a process is |
| 92 | executed in a eshell mode buffer (e.g., `process-kill-without-query'). |
| 93 | In contrast, `eshell-mode-hook' is only executed once when the buffer |
| 94 | is created." |
| 95 | :type 'hook |
| 96 | :group 'eshell-proc) |
| 97 | |
| 98 | (defcustom eshell-kill-hook '(eshell-reset-after-proc) |
| 99 | "Called when a process run by `eshell-gather-process-output' has ended. |
| 100 | It is passed two arguments: the process that was just ended, and the |
| 101 | termination status (as a string). Note that the first argument may be |
| 102 | nil, in which case the user attempted to send a signal, but there was |
| 103 | no relevant process. This can be used for displaying help |
| 104 | information, for example." |
| 105 | :type 'hook |
| 106 | :group 'eshell-proc) |
| 107 | |
| 108 | ;;; Internal Variables: |
| 109 | |
| 110 | (defvar eshell-current-subjob-p nil) |
| 111 | |
| 112 | (defvar eshell-process-list nil |
| 113 | "A list of the current status of subprocesses.") |
| 114 | |
| 115 | ;;; Functions: |
| 116 | |
| 117 | (defun eshell-proc-initialize () |
| 118 | "Initialize the process handling code." |
| 119 | (make-local-variable 'eshell-process-list) |
| 120 | (define-key eshell-command-map [(meta ?i)] 'eshell-insert-process) |
| 121 | (define-key eshell-command-map [(control ?c)] 'eshell-interrupt-process) |
| 122 | (define-key eshell-command-map [(control ?k)] 'eshell-kill-process) |
| 123 | (define-key eshell-command-map [(control ?d)] 'eshell-send-eof-to-process) |
| 124 | ; (define-key eshell-command-map [(control ?q)] 'eshell-continue-process) |
| 125 | (define-key eshell-command-map [(control ?s)] 'list-processes) |
| 126 | ; (define-key eshell-command-map [(control ?z)] 'eshell-stop-process) |
| 127 | (define-key eshell-command-map [(control ?\\)] 'eshell-quit-process)) |
| 128 | |
| 129 | (defun eshell-reset-after-proc (proc status) |
| 130 | "Reset the command input location after a process terminates. |
| 131 | The signals which will cause this to happen are matched by |
| 132 | `eshell-reset-signals'." |
| 133 | (if (and (stringp status) |
| 134 | (string-match eshell-reset-signals status)) |
| 135 | (eshell-reset))) |
| 136 | |
| 137 | (defun eshell-wait-for-process (&rest procs) |
| 138 | "Wait until PROC has successfully completed." |
| 139 | (while procs |
| 140 | (let ((proc (car procs))) |
| 141 | (when (eshell-processp proc) |
| 142 | ;; NYI: If the process gets stopped here, that's bad. |
| 143 | (while (assq proc eshell-process-list) |
| 144 | (if (input-pending-p) |
| 145 | (discard-input)) |
| 146 | (sit-for eshell-process-wait-seconds |
| 147 | eshell-process-wait-milliseconds)))) |
| 148 | (setq procs (cdr procs)))) |
| 149 | |
| 150 | (defalias 'eshell/wait 'eshell-wait-for-process) |
| 151 | |
| 152 | (defun eshell/jobs (&rest args) |
| 153 | "List processes, if there are any." |
| 154 | (and (fboundp 'process-list) |
| 155 | (process-list) |
| 156 | (list-processes))) |
| 157 | |
| 158 | (defun eshell/kill (&rest args) |
| 159 | "Kill processes, buffers, symbol or files." |
| 160 | (let ((ptr args) |
| 161 | (signum 'SIGINT)) |
| 162 | (while ptr |
| 163 | (if (or (eshell-processp (car ptr)) |
| 164 | (and (stringp (car ptr)) |
| 165 | (string-match "^[A-Za-z/][A-Za-z0-9<>/]+$" |
| 166 | (car ptr)))) |
| 167 | ;; What about when $lisp-variable is possible here? |
| 168 | ;; It could very well name a process. |
| 169 | (setcar ptr (get-process (car ptr)))) |
| 170 | (setq ptr (cdr ptr))) |
| 171 | (while args |
| 172 | (let ((id (if (eshell-processp (car args)) |
| 173 | (process-id (car args)) |
| 174 | (car args)))) |
| 175 | (when id |
| 176 | (cond |
| 177 | ((null id) |
| 178 | (error "kill: bad signal spec")) |
| 179 | ((and (numberp id) (= id 0)) |
| 180 | (error "kill: bad signal spec `%d'" id)) |
| 181 | ((and (stringp id) |
| 182 | (string-match "^-?[0-9]+$" id)) |
| 183 | (setq signum (abs (string-to-number id)))) |
| 184 | ((stringp id) |
| 185 | (let (case-fold-search) |
| 186 | (if (string-match "^-\\([A-Z]+[12]?\\)$" id) |
| 187 | (setq signum |
| 188 | (intern (concat "SIG" (match-string 1 id)))) |
| 189 | (error "kill: bad signal spec `%s'" id)))) |
| 190 | ((< id 0) |
| 191 | (setq signum (abs id))) |
| 192 | (t |
| 193 | (signal-process id signum))))) |
| 194 | (setq args (cdr args))) |
| 195 | nil)) |
| 196 | |
| 197 | (defun eshell-read-process-name (prompt) |
| 198 | "Read the name of a process from the minibuffer, using completion. |
| 199 | The prompt will be set to PROMPT." |
| 200 | (completing-read prompt |
| 201 | (mapcar |
| 202 | (function |
| 203 | (lambda (proc) |
| 204 | (cons (process-name proc) t))) |
| 205 | (process-list)) nil t)) |
| 206 | |
| 207 | (defun eshell-insert-process (process) |
| 208 | "Insert the name of PROCESS into the current buffer at point." |
| 209 | (interactive |
| 210 | (list (get-process |
| 211 | (eshell-read-process-name "Name of process: ")))) |
| 212 | (insert-and-inherit "#<process " (process-name process) ">")) |
| 213 | |
| 214 | (defsubst eshell-record-process-object (object) |
| 215 | "Record OBJECT as now running." |
| 216 | (if (and (eshell-processp object) |
| 217 | eshell-current-subjob-p) |
| 218 | (eshell-interactive-print |
| 219 | (format "[%s] %d\n" (process-name object) (process-id object)))) |
| 220 | (setq eshell-process-list |
| 221 | (cons (list object eshell-current-handles |
| 222 | eshell-current-subjob-p nil nil) |
| 223 | eshell-process-list))) |
| 224 | |
| 225 | (defun eshell-remove-process-entry (entry) |
| 226 | "Record the process ENTRY as fully completed." |
| 227 | (if (and (eshell-processp (car entry)) |
| 228 | (nth 2 entry) |
| 229 | eshell-done-messages-in-minibuffer) |
| 230 | (message "[%s]+ Done %s" (process-name (car entry)) |
| 231 | (process-command (car entry)))) |
| 232 | (setq eshell-process-list |
| 233 | (delq entry eshell-process-list))) |
| 234 | |
| 235 | (defvar eshell-scratch-buffer " *eshell-scratch*" |
| 236 | "Scratch buffer for holding Eshell's input/output.") |
| 237 | (defvar eshell-last-sync-output-start nil |
| 238 | "A marker that tracks the beginning of output of the last subprocess. |
| 239 | Used only on systems which do not support async subprocesses.") |
| 240 | |
| 241 | (defvar eshell-needs-pipe '("bc") |
| 242 | "List of commands which need `process-connection-type' to be nil. |
| 243 | Currently only affects commands in pipelines, and not those at |
| 244 | the front. If an element contains a directory part it must match |
| 245 | the full name of a command, otherwise just the nondirectory part must match.") |
| 246 | |
| 247 | (defun eshell-needs-pipe-p (command) |
| 248 | "Return non-nil if COMMAND needs `process-connection-type' to be nil. |
| 249 | See `eshell-needs-pipe'." |
| 250 | (and eshell-in-pipeline-p |
| 251 | (not (eq eshell-in-pipeline-p 'first)) |
| 252 | ;; FIXME should this return non-nil for anything that is |
| 253 | ;; neither 'first nor 'last? See bug#1388 discussion. |
| 254 | (catch 'found |
| 255 | (dolist (exe eshell-needs-pipe) |
| 256 | (if (string-equal exe (if (string-match "/" exe) |
| 257 | command |
| 258 | (file-name-nondirectory command))) |
| 259 | (throw 'found t)))))) |
| 260 | |
| 261 | (defun eshell-gather-process-output (command args) |
| 262 | "Gather the output from COMMAND + ARGS." |
| 263 | (unless (and (file-executable-p command) |
| 264 | (file-regular-p (file-truename command))) |
| 265 | (error "%s: not an executable file" command)) |
| 266 | (let* ((delete-exited-processes |
| 267 | (if eshell-current-subjob-p |
| 268 | eshell-delete-exited-processes |
| 269 | delete-exited-processes)) |
| 270 | (process-environment (eshell-environment-variables)) |
| 271 | proc decoding encoding changed) |
| 272 | (cond |
| 273 | ((fboundp 'start-file-process) |
| 274 | (setq proc |
| 275 | (let ((process-connection-type |
| 276 | (unless (eshell-needs-pipe-p command) |
| 277 | process-connection-type)) |
| 278 | (command (or (file-remote-p command 'localname) command))) |
| 279 | (apply 'start-file-process |
| 280 | (file-name-nondirectory command) nil |
| 281 | ;; `start-process' can't deal with relative filenames. |
| 282 | (append (list (expand-file-name command)) args)))) |
| 283 | (eshell-record-process-object proc) |
| 284 | (set-process-buffer proc (current-buffer)) |
| 285 | (if (eshell-interactive-output-p) |
| 286 | (set-process-filter proc 'eshell-output-filter) |
| 287 | (set-process-filter proc 'eshell-insertion-filter)) |
| 288 | (set-process-sentinel proc 'eshell-sentinel) |
| 289 | (run-hook-with-args 'eshell-exec-hook proc) |
| 290 | (when (fboundp 'process-coding-system) |
| 291 | (let ((coding-systems (process-coding-system proc))) |
| 292 | (setq decoding (car coding-systems) |
| 293 | encoding (cdr coding-systems))) |
| 294 | ;; If start-process decided to use some coding system for |
| 295 | ;; decoding data sent from the process and the coding system |
| 296 | ;; doesn't specify EOL conversion, we had better convert CRLF |
| 297 | ;; to LF. |
| 298 | (if (vectorp (coding-system-eol-type decoding)) |
| 299 | (setq decoding (coding-system-change-eol-conversion decoding 'dos) |
| 300 | changed t)) |
| 301 | ;; Even if start-process left the coding system for encoding |
| 302 | ;; data sent from the process undecided, we had better use the |
| 303 | ;; same one as what we use for decoding. But, we should |
| 304 | ;; suppress EOL conversion. |
| 305 | (if (and decoding (not encoding)) |
| 306 | (setq encoding (coding-system-change-eol-conversion decoding 'unix) |
| 307 | changed t)) |
| 308 | (if changed |
| 309 | (set-process-coding-system proc decoding encoding)))) |
| 310 | (t |
| 311 | ;; No async subprocesses... |
| 312 | (let ((oldbuf (current-buffer)) |
| 313 | (interact-p (eshell-interactive-output-p)) |
| 314 | lbeg lend line proc-buf exit-status) |
| 315 | (and (not (markerp eshell-last-sync-output-start)) |
| 316 | (setq eshell-last-sync-output-start (point-marker))) |
| 317 | (setq proc-buf |
| 318 | (set-buffer (get-buffer-create eshell-scratch-buffer))) |
| 319 | (erase-buffer) |
| 320 | (set-buffer oldbuf) |
| 321 | (run-hook-with-args 'eshell-exec-hook command) |
| 322 | (setq exit-status |
| 323 | (apply 'call-process-region |
| 324 | (append (list eshell-last-sync-output-start (point) |
| 325 | command t |
| 326 | eshell-scratch-buffer nil) |
| 327 | args))) |
| 328 | ;; When in a pipeline, record the place where the output of |
| 329 | ;; this process will begin. |
| 330 | (and eshell-in-pipeline-p |
| 331 | (set-marker eshell-last-sync-output-start (point))) |
| 332 | ;; Simulate the effect of the process filter. |
| 333 | (when (numberp exit-status) |
| 334 | (set-buffer proc-buf) |
| 335 | (goto-char (point-min)) |
| 336 | (setq lbeg (point)) |
| 337 | (while (eq 0 (forward-line 1)) |
| 338 | (setq lend (point) |
| 339 | line (buffer-substring-no-properties lbeg lend)) |
| 340 | (set-buffer oldbuf) |
| 341 | (if interact-p |
| 342 | (eshell-output-filter nil line) |
| 343 | (eshell-output-object line)) |
| 344 | (setq lbeg lend) |
| 345 | (set-buffer proc-buf)) |
| 346 | (set-buffer oldbuf)) |
| 347 | (eshell-update-markers eshell-last-output-end) |
| 348 | ;; Simulate the effect of eshell-sentinel. |
| 349 | (eshell-close-handles (if (numberp exit-status) exit-status -1)) |
| 350 | (run-hook-with-args 'eshell-kill-hook command exit-status) |
| 351 | (or eshell-in-pipeline-p |
| 352 | (setq eshell-last-sync-output-start nil)) |
| 353 | (if (not (numberp exit-status)) |
| 354 | (error "%s: external command failed: %s" command exit-status)) |
| 355 | (setq proc t)))) |
| 356 | proc)) |
| 357 | |
| 358 | (defun eshell-insertion-filter (proc string) |
| 359 | "Insert a string into the eshell buffer, or a process/file/buffer. |
| 360 | PROC is the process for which we're inserting output. STRING is the |
| 361 | output." |
| 362 | (when (buffer-live-p (process-buffer proc)) |
| 363 | (with-current-buffer (process-buffer proc) |
| 364 | (let ((entry (assq proc eshell-process-list))) |
| 365 | (when entry |
| 366 | (setcar (nthcdr 3 entry) |
| 367 | (concat (nth 3 entry) string)) |
| 368 | (unless (nth 4 entry) ; already being handled? |
| 369 | (while (nth 3 entry) |
| 370 | (let ((data (nth 3 entry))) |
| 371 | (setcar (nthcdr 3 entry) nil) |
| 372 | (setcar (nthcdr 4 entry) t) |
| 373 | (eshell-output-object data nil (cadr entry)) |
| 374 | (setcar (nthcdr 4 entry) nil))))))))) |
| 375 | |
| 376 | (defun eshell-sentinel (proc string) |
| 377 | "Generic sentinel for command processes. Reports only signals. |
| 378 | PROC is the process that's exiting. STRING is the exit message." |
| 379 | (when (buffer-live-p (process-buffer proc)) |
| 380 | (with-current-buffer (process-buffer proc) |
| 381 | (unwind-protect |
| 382 | (let* ((entry (assq proc eshell-process-list))) |
| 383 | ; (if (not entry) |
| 384 | ; (error "Sentinel called for unowned process `%s'" |
| 385 | ; (process-name proc)) |
| 386 | (when entry |
| 387 | (unwind-protect |
| 388 | (progn |
| 389 | (unless (string= string "run") |
| 390 | (unless (string-match "^\\(finished\\|exited\\)" string) |
| 391 | (eshell-insertion-filter proc string)) |
| 392 | (eshell-close-handles (process-exit-status proc) 'nil |
| 393 | (cadr entry)))) |
| 394 | (eshell-remove-process-entry entry)))) |
| 395 | (run-hook-with-args 'eshell-kill-hook proc string))))) |
| 396 | |
| 397 | (defun eshell-process-interact (func &optional all query) |
| 398 | "Interact with a process, using PROMPT if more than one, via FUNC. |
| 399 | If ALL is non-nil, background processes will be interacted with as well. |
| 400 | If QUERY is non-nil, query the user with QUERY before calling FUNC." |
| 401 | (let (defunct result) |
| 402 | (eshell-for entry eshell-process-list |
| 403 | (if (and (memq (process-status (car entry)) |
| 404 | '(run stop open closed)) |
| 405 | (or all |
| 406 | (not (nth 2 entry))) |
| 407 | (or (not query) |
| 408 | (y-or-n-p (format query (process-name (car entry)))))) |
| 409 | (setq result (funcall func (car entry)))) |
| 410 | (unless (memq (process-status (car entry)) |
| 411 | '(run stop open closed)) |
| 412 | (setq defunct (cons entry defunct)))) |
| 413 | ;; clean up the process list; this can get dirty if an error |
| 414 | ;; occurred that brought the user into the debugger, and then they |
| 415 | ;; quit, so that the sentinel was never called. |
| 416 | (eshell-for d defunct |
| 417 | (eshell-remove-process-entry d)) |
| 418 | result)) |
| 419 | |
| 420 | (defcustom eshell-kill-process-wait-time 5 |
| 421 | "Seconds to wait between sending termination signals to a subprocess." |
| 422 | :type 'integer |
| 423 | :group 'eshell-proc) |
| 424 | |
| 425 | (defcustom eshell-kill-process-signals '(SIGINT SIGQUIT SIGKILL) |
| 426 | "Signals used to kill processes when an Eshell buffer exits. |
| 427 | Eshell calls each of these signals in order when an Eshell buffer is |
| 428 | killed; if the process is still alive afterwards, Eshell waits a |
| 429 | number of seconds defined by `eshell-kill-process-wait-time', and |
| 430 | tries the next signal in the list." |
| 431 | :type '(repeat symbol) |
| 432 | :group 'eshell-proc) |
| 433 | |
| 434 | (defcustom eshell-kill-processes-on-exit nil |
| 435 | "If non-nil, kill active processes when exiting an Eshell buffer. |
| 436 | Emacs will only kill processes owned by that Eshell buffer. |
| 437 | |
| 438 | If nil, ownership of background and foreground processes reverts to |
| 439 | Emacs itself, and will die only if the user exits Emacs, calls |
| 440 | `kill-process', or terminates the processes externally. |
| 441 | |
| 442 | If `ask', Emacs prompts the user before killing any processes. |
| 443 | |
| 444 | If `every', it prompts once for every process. |
| 445 | |
| 446 | If t, it kills all buffer-owned processes without asking. |
| 447 | |
| 448 | Processes are first sent SIGHUP, then SIGINT, then SIGQUIT, then |
| 449 | SIGKILL. The variable `eshell-kill-process-wait-time' specifies how |
| 450 | long to delay between signals." |
| 451 | :type '(choice (const :tag "Kill all, don't ask" t) |
| 452 | (const :tag "Ask before killing" ask) |
| 453 | (const :tag "Ask for each process" every) |
| 454 | (const :tag "Don't kill subprocesses" nil)) |
| 455 | :group 'eshell-proc) |
| 456 | |
| 457 | (defun eshell-round-robin-kill (&optional query) |
| 458 | "Kill current process by trying various signals in sequence. |
| 459 | See the variable `eshell-kill-processes-on-exit'." |
| 460 | (let ((sigs eshell-kill-process-signals)) |
| 461 | (while sigs |
| 462 | (eshell-process-interact |
| 463 | (function |
| 464 | (lambda (proc) |
| 465 | (signal-process (process-id proc) (car sigs)))) t query) |
| 466 | (setq query nil) |
| 467 | (if (not eshell-process-list) |
| 468 | (setq sigs nil) |
| 469 | (sleep-for eshell-kill-process-wait-time) |
| 470 | (setq sigs (cdr sigs)))))) |
| 471 | |
| 472 | (defun eshell-query-kill-processes () |
| 473 | "Kill processes belonging to the current Eshell buffer, possibly w/ query." |
| 474 | (when (and eshell-kill-processes-on-exit |
| 475 | eshell-process-list) |
| 476 | (save-window-excursion |
| 477 | (list-processes) |
| 478 | (if (or (not (eq eshell-kill-processes-on-exit 'ask)) |
| 479 | (y-or-n-p (format "Kill processes owned by `%s'? " |
| 480 | (buffer-name)))) |
| 481 | (eshell-round-robin-kill |
| 482 | (if (eq eshell-kill-processes-on-exit 'every) |
| 483 | "Kill Eshell child process `%s'? "))) |
| 484 | (let ((buf (get-buffer "*Process List*"))) |
| 485 | (if (and buf (buffer-live-p buf)) |
| 486 | (kill-buffer buf))) |
| 487 | (message nil)))) |
| 488 | |
| 489 | (custom-add-option 'eshell-exit-hook 'eshell-query-kill-processes) |
| 490 | |
| 491 | (defun eshell-interrupt-process () |
| 492 | "Interrupt a process." |
| 493 | (interactive) |
| 494 | (unless (eshell-process-interact 'interrupt-process) |
| 495 | (run-hook-with-args 'eshell-kill-hook nil "interrupt"))) |
| 496 | |
| 497 | (defun eshell-kill-process () |
| 498 | "Kill a process." |
| 499 | (interactive) |
| 500 | (unless (eshell-process-interact 'kill-process) |
| 501 | (run-hook-with-args 'eshell-kill-hook nil "killed"))) |
| 502 | |
| 503 | (defun eshell-quit-process () |
| 504 | "Send quit signal to process." |
| 505 | (interactive) |
| 506 | (unless (eshell-process-interact 'quit-process) |
| 507 | (run-hook-with-args 'eshell-kill-hook nil "quit"))) |
| 508 | |
| 509 | ;(defun eshell-stop-process () |
| 510 | ; "Send STOP signal to process." |
| 511 | ; (interactive) |
| 512 | ; (unless (eshell-process-interact 'stop-process) |
| 513 | ; (run-hook-with-args 'eshell-kill-hook nil "stopped"))) |
| 514 | |
| 515 | ;(defun eshell-continue-process () |
| 516 | ; "Send CONTINUE signal to process." |
| 517 | ; (interactive) |
| 518 | ; (unless (eshell-process-interact 'continue-process) |
| 519 | ; ;; jww (1999-09-17): this signal is not dealt with yet. For |
| 520 | ; ;; example, `eshell-reset' will be called, and so will |
| 521 | ; ;; `eshell-resume-eval'. |
| 522 | ; (run-hook-with-args 'eshell-kill-hook nil "continue"))) |
| 523 | |
| 524 | (defun eshell-send-eof-to-process () |
| 525 | "Send EOF to process." |
| 526 | (interactive) |
| 527 | (eshell-send-input nil nil t) |
| 528 | (eshell-process-interact 'process-send-eof)) |
| 529 | |
| 530 | ;;; esh-proc.el ends here |