speedbar refresh hangs emacs when visited directory is deleted

speedbar refresh hangs emacs when visited directory is deleted

[Richard Stallman]

He says this still happens in the latest CVS sources.
Could you please take a look at the problem?


Message-Id: <200203191411.g2JEBgQ05041@dhcp70-196.zurich.ibm.com>
From: Claudio Favi <clf@zurich.ibm.com>
To: bug-gnu-emacs@gnu.org
Subject: speedbar refresh hangs emacs when visited directory is deleted
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Date: Tue, 19 Mar 2002 15:11:42 +0100
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This bug report will be sent to the Free Software Foundation,
 not to your local site managers!!
Please write in English, because the Emacs maintainers do not have
translators to read other languages for them.

In GNU Emacs 20.7.1 (i386-redhat-linux-gnu, X toolkit)
 of Fri Mar 16 2001 on porky.devel.redhat.com
configured using `configure  --mandir=/usr/share/man --infodir=/usr/share/info --prefix=/usr --libexecdir=/usr/lib --sharedstatedir=/var --with-gcc --with-pop --with-x-toolkit i386-redhat-linux-gnu'

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

this is what happens:
     start emacs; start speedbar
     visit a directory with the speedbar (by clicking on the + signs);
     now in a terminal erase that directory;
     go back to the speedbar and refresh it;
     emacs hangs and i get 100% CPU utilization.

that's it, it's that much of a bug.
have a nice day
Claudio


Recent input:
menu-bar help-menu report-emacs-bug

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Re[1]: speedbar refresh hangs emacs when visited directory is deleted

[Eric M. Ludlam]

Hi,

  This patch should fix it.  The patch is against my working version
of speedbar, but the function it patches has not changed.

	speedbar.el (speedbar-default-directory-list): Made robust against
	deleted directories.

Enjoy
Eric

*** speedbar.el.~1.219.~	Fri Mar 22 15:50:54 2002
--- speedbar.el	Tue Mar 26 19:59:20 2002
***************
*** 2013,2020 ****
  		(if (looking-at "[0-9]+:[ ]*<")
  		    (progn
  		      (goto-char (match-end 0))
! 		  (speedbar-do-function-pointer)))
! 		(setq sf (cdr sf)))))
  	)))
  ;;; Generic List support
  ;;
--- 2013,2020 ----
  		(if (looking-at "[0-9]+:[ ]*<")
  		    (progn
  		      (goto-char (match-end 0))
! 		      (speedbar-do-function-pointer)))))
! 	  (setq sf (cdr sf)))
  	)))
  ;;; Generic List support
  ;;


>>> Richard Stallman <rms@gnu.org> seems to think that:
>He says this still happens in the latest CVS sources.
>Could you please take a look at the problem?
>
>
>Message-Id: <200203191411.g2JEBgQ05041@dhcp70-196.zurich.ibm.com>
>From: Claudio Favi <clf@zurich.ibm.com>
>To: bug-gnu-emacs@gnu.org
>Subject: speedbar refresh hangs emacs when visited directory is deleted
>Sender: bug-gnu-emacs-admin@gnu.org
>Errors-To: bug-gnu-emacs-admin@gnu.org
>X-BeenThere: bug-gnu-emacs@gnu.org
>X-Mailman-Version: 2.0.5
>Precedence: bulk
>List-Help: <mailto:bug-gnu-emacs-request@gnu.org?subject=help>
>List-Post: <mailto:bug-gnu-emacs@gnu.org>
>List-Subscribe: <http://mail.gnu.org/mailman/listinfo/bug-gnu-emacs>,
>	<mailto:bug-gnu-emacs-request@gnu.org?subject=subscribe>
>List-Id: Bug reports for GNU Emacs,
>	the Swiss army knife of text editors <bug-gnu-emacs.gnu.org>
>List-Unsubscribe: <http://mail.gnu.org/mailman/listinfo/bug-gnu-emacs>,
>	<mailto:bug-gnu-emacs-request@gnu.org?subject=unsubscribe>
>List-Archive: <http://mail.gnu.org/pipermail/bug-gnu-emacs/>
>Date: Tue, 19 Mar 2002 15:11:42 +0100
>Content-Type: text
>Content-Length: 1492
>
>This bug report will be sent to the Free Software Foundation,
> not to your local site managers!!
>Please write in English, because the Emacs maintainers do not have
>translators to read other languages for them.
>
>In GNU Emacs 20.7.1 (i386-redhat-linux-gnu, X toolkit)
> of Fri Mar 16 2001 on porky.devel.redhat.com
>configured using `configure  --mandir=/usr/share/man --infodir=/usr/share/info --prefix=/usr --libexecdir=/usr/lib --sharedstatedir=/var --with-gcc --with-pop --with-x-toolkit i386-redhat-linux-gnu'
>
>Please describe exactly what actions triggered the bug
>and the precise symptoms of the bug:
>
>this is what happens:
>     start emacs; start speedbar
>     visit a directory with the speedbar (by clicking on the + signs);
>     now in a terminal erase that directory;
>     go back to the speedbar and refresh it;
>     emacs hangs and i get 100% CPU utilization.
>
>that's it, it's that much of a bug.
>have a nice day
>Claudio
>
>
>Recent input:
>menu-bar help-menu report-emacs-bug
>
>Recent messages:
>Loading font-lock...
>Loading regexp-opt...
>Loading regexp-opt...done
>Loading font-lock...done
>For information about the GNU Project and its goals, type C-h C-p.
>Fontifying *scratch*...
>Fontifying *scratch*... (regexps............)
>For information about the GNU Project and its goals, type C-h C-p.
>Loading emacsbug...
>Loading emacsbug...done
>
>_______________________________________________
>Bug-gnu-emacs mailing list
>Bug-gnu-emacs@gnu.org
>http://mail.gnu.org/mailman/listinfo/bug-gnu-emacs
>

-- 
          Eric Ludlam:                 zappo@gnu.org, eric@siege-engine.com
   Home: www.ultranet.com/~zappo            Siege: www.siege-engine.com
Emacs: http://cedet.sourceforge.net               GNU: www.gnu.org

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Re: speedbar refresh hangs emacs when visited directory is deleted

[Eric M. Ludlam]

>> Richard Stallman <rms@gnu.org> seems to think that:
>He says this still happens in the latest CVS sources.
>Could you please take a look at the problem?
>
[...]
>From: Claudio Favi <clf@zurich.ibm.com>
>To: bug-gnu-emacs@gnu.org
[...]
>this is what happens:
>     start emacs; start speedbar
>     visit a directory with the speedbar (by clicking on the +
>     signs);
>     now in a terminal erase that directory;
>     go back to the speedbar and refresh it;
>     emacs hangs and i get 100% CPU utilization.

Hi,

  This patch should fix it.  The patch is against my working version
of speedbar, but the function it patches has not changed.

        speedbar.el (speedbar-default-directory-list): Made robust
	against deleted directories.

Enjoy
Eric

*** speedbar.el.~1.219.~        Fri Mar 22 15:50:54 2002
--- speedbar.el Tue Mar 26 19:59:20 2002
***************
*** 2013,2020 ****
                (if (looking-at "[0-9]+:[ ]*<")
                    (progn
                      (goto-char (match-end 0))
!                 (speedbar-do-function-pointer)))
!               (setq sf (cdr sf)))))
        )))
  ;;; Generic List support
  ;;
--- 2013,2020 ----
                (if (looking-at "[0-9]+:[ ]*<")
                    (progn
                      (goto-char (match-end 0))
!                     (speedbar-do-function-pointer)))))
!         (setq sf (cdr sf)))
        )))
  ;;; Generic List support
  ;;

-- 
          Eric Ludlam:                 zappo@gnu.org, eric@siege-engine.com
   Home: www.ultranet.com/~zappo            Siege: www.siege-engine.com
Emacs: http://cedet.sourceforge.net               GNU: www.gnu.org

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Re: speedbar refresh hangs emacs when visited directory is deleted

[Richard Stallman]

I installed the fix.  Thanks.

      This patch should fix it.  The patch is against my working version
    of speedbar, but the function it patches has not changed.

Does this mean you have more changes to install in Speedbar?
If so, what are you waiting for?

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Re: speedbar refresh hangs emacs when visited directory is deleted

[Richard Stallman]

    I need to send you papers from my company each time I do a merge, so I
    try to be careful that everything is quite stable between my multiple
    projects so I only have to deal with one bit of paper work at a time.

That makes sense.

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