From: Yoni Rabkin <yoni@rabkins.net>
To: emacs-devel@gnu.org
Subject: Re: improving network utility calls in lisp/net/net-utils.el
Date: Sat, 11 Apr 2009 11:47:23 +0300 [thread overview]
Message-ID: <874owvk25g.fsf@rabkins.net> (raw)
In-Reply-To: <jwv1vs040pm.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Fri, 10 Apr 2009 18:13:30 -0400")
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Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> As a user of both Dired and Gnus I'm well accustomed to waiting for
>> Emacs to synchronously go fetch something. I agree to wait because of
>> the quality of the interface I'll get when the process is done.
>
> There's no connection between the two. I only object to the change to
> sync processes. The rest looks like good changes.
I've attached a patch that calls all of the processes asynchronously,
uses `special-mode' and modifies `net-utils-font-lock-keywords'
conservatively (according to David's multi-platform argument).
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: net-utils-improved-utility-calls-3.patch --]
[-- Type: text/x-diff, Size: 5879 bytes --]
? net-utils-improved-utility-calls-2.patch
? net-utils-improved-utility-calls-3.patch
? net-utils-improved-utility-calls.patch
? net-utils.patch
? lisp/mail/subdirs.el
? lisp/nxml/char-name/subdirs.el
Index: lisp/net/net-utils.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/net/net-utils.el,v
retrieving revision 1.37
diff -u -r1.37 net-utils.el
--- lisp/net/net-utils.el 5 Jan 2009 03:22:45 -0000 1.37
+++ lisp/net/net-utils.el 11 Apr 2009 08:33:43 -0000
@@ -260,6 +260,38 @@
"Expressions to font-lock for nslookup.")
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; General network utilities mode
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst net-utils-font-lock-keywords
+ (list
+ ;; Dotted quads
+ (list
+ (mapconcat 'identity (make-list 4 "[0-9]+") "\\.")
+ 0 'font-lock-variable-name-face)
+ ;; Simple rfc4291 addresses
+ (list (concat
+ "\\( \\([[:xdigit:]]+\\(:\\|::\\)\\)+[[:xdigit:]]+\\)"
+ "\\|"
+ "\\(::[[:xdigit:]]+\\)")
+ 0 'font-lock-variable-name-face)
+ ;; Host names
+ (list
+ (let ((host-expression "[-A-Za-z0-9]+"))
+ (concat
+ (mapconcat 'identity (make-list 2 host-expression) "\\.")
+ "\\(\\." host-expression "\\)*"))
+ 0 'font-lock-variable-name-face))
+ "Expressions to font-lock for general network utilities.")
+
+(define-derived-mode net-utils-mode special-mode "NetworkUtil"
+ "Major mode for interacting with an external network utility."
+ (set
+ (make-local-variable 'font-lock-defaults)
+ '((net-utils-font-lock-keywords)))
+ (use-local-map net-utils-mode-map))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Utility functions
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -288,7 +320,6 @@
(skip-chars-backward ":;.,!?" pt)
(point)))))
-
(defun net-utils-remove-ctrl-m-filter (process output-string)
"Remove trailing control Ms."
(let ((old-buffer (current-buffer))
@@ -296,17 +327,18 @@
(unwind-protect
(let ((moving))
(set-buffer (process-buffer process))
- (setq moving (= (point) (process-mark process)))
+ (let ((inhibit-read-only t))
+ (setq moving (= (point) (process-mark process)))
- (while (string-match "\r" filtered-string)
- (setq filtered-string
- (replace-match "" nil nil filtered-string)))
-
- (save-excursion
- ;; Insert the text, moving the process-marker.
- (goto-char (process-mark process))
- (insert filtered-string)
- (set-marker (process-mark process) (point)))
+ (while (string-match "\r" filtered-string)
+ (setq filtered-string
+ (replace-match "" nil nil filtered-string)))
+
+ (save-excursion
+ ;; Insert the text, moving the process-marker.
+ (goto-char (process-mark process))
+ (insert filtered-string)
+ (set-marker (process-mark process) (point))))
(if moving (goto-char (process-mark process))))
(set-buffer old-buffer))))
@@ -323,6 +355,42 @@
buf))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; General network utilities (diagnostic)
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun net-utils-run-simple (buffer-name program-name args)
+ "Run a network utility for diagnostic output only."
+ (interactive)
+ (when (get-buffer buffer-name)
+ (kill-buffer buffer-name))
+ (get-buffer-create buffer-name)
+ (with-current-buffer buffer-name
+ (net-utils-mode)
+ (set-process-filter
+ (apply 'start-process (format "%s" program-name)
+ buffer-name program-name args)
+ 'net-utils-remove-ctrl-m-filter)
+ (goto-char (point-min)))
+ (display-buffer buffer-name))
+
+(defmacro net-utils-defutil (fname program-name args)
+ (let ((doc (format "Run %s and display diagnostic output."
+ fname)))
+ `(defun ,fname ()
+ ,doc
+ (interactive)
+ (net-utils-run-simple
+ (format "*%s*" ,program-name)
+ ,program-name
+ ,args))))
+
+(net-utils-defutil ifconfig ifconfig-program ifconfig-program-options)
+(net-utils-defutil iwconfig iwconfig-program iwconfig-program-options)
+(net-utils-defutil netstat netstat-program netstat-program-options)
+(net-utils-defutil arp arp-program arp-program-options)
+(net-utils-defutil route route-program route-program-options)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Wrappers for external network programs
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -357,60 +425,6 @@
ping-program
options)))
-;;;###autoload
-(defun ifconfig ()
- "Run ifconfig program."
- (interactive)
- (net-utils-run-program
- "Ifconfig"
- (concat "** Ifconfig ** " ifconfig-program " ** ")
- ifconfig-program
- ifconfig-program-options))
-
-;; Windows uses this name.
-;;;###autoload
-(defalias 'ipconfig 'ifconfig)
-
-;;;###autoload
-(defun iwconfig ()
- "Run iwconfig program."
- (interactive)
- (net-utils-run-program
- "Iwconfig"
- (concat "** Iwconfig ** " iwconfig-program " ** ")
- iwconfig-program
- iwconfig-program-options))
-
-;;;###autoload
-(defun netstat ()
- "Run netstat program."
- (interactive)
- (net-utils-run-program
- "Netstat"
- (concat "** Netstat ** " netstat-program " ** ")
- netstat-program
- netstat-program-options))
-
-;;;###autoload
-(defun arp ()
- "Run arp program."
- (interactive)
- (net-utils-run-program
- "Arp"
- (concat "** Arp ** " arp-program " ** ")
- arp-program
- arp-program-options))
-
-;;;###autoload
-(defun route ()
- "Run route program."
- (interactive)
- (net-utils-run-program
- "Route"
- (concat "** Route ** " route-program " ** ")
- route-program
- route-program-options))
-
;; FIXME -- Needs to be a process filter
;; (defun netstat-with-filter (filter)
;; "Run netstat program."
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--
"Cut your own wood and it will warm you twice"
next prev parent reply other threads:[~2009-04-11 8:47 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-10 13:18 improving network utility calls in lisp/net/net-utils.el Yoni Rabkin
2009-04-10 13:25 ` Stefan Monnier
2009-04-10 14:09 ` Yoni Rabkin
2009-04-10 16:40 ` David De La Harpe Golden
2009-04-10 17:55 ` Yoni Rabkin
2009-04-10 20:10 ` David De La Harpe Golden
2009-04-10 21:13 ` Yoni Rabkin
2009-04-11 0:42 ` Chad Brown
2009-04-10 22:13 ` Stefan Monnier
2009-04-11 8:47 ` Yoni Rabkin [this message]
2009-04-11 9:02 ` Eli Zaretskii
2009-04-11 9:17 ` Yoni Rabkin
2009-04-11 12:39 ` Stefan Monnier
2009-07-16 19:52 ` Yoni Rabkin
2009-07-26 8:02 ` Yoni Rabkin
2009-08-02 19:21 ` Yoni Rabkin
2009-08-02 22:34 ` Chong Yidong
2009-08-08 8:05 ` Yoni Rabkin
2009-08-08 18:27 ` Chong Yidong
2009-04-10 19:34 ` Dan Nicolaescu
2009-04-10 22:14 ` Stefan Monnier
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