ps and linking to cygwin.dll

ps and linking to cygwin.dll

[Ryan T. Sammartino]

Am I correct in stating that the only processes that ps will list are
processes that are linked to cygwin.dll?



-- 
Ryan T. Sammartino
http://members.shaw.ca/ryants/
Hear about the young Chinese woman who just won the lottery?
One fortunate cookie...

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

Re: ps and linking to cygwin.dll

[Ryan T. Sammartino]

On Tue, Apr 23, 2002 at 09:19:06PM -0400, Larry Hall (RFK Partners, Inc) wrote:
> At 06:51 PM 4/23/2002, you wrote:
> 
> >Am I correct in stating that the only processes that ps will list are
> >processes that are linked to cygwin.dll?
> 
> 
> No.  See 'ps -h'.


$ ps -h
ps: unknown option -- h


Pretty sure I have the latest greatest "ps".  "man ps" says:

       The  ps program gives the status of all  the  Cygwin  pro-
       cesses running on the system (ps = "process status"). 

but that doesn't mean *just* Cygwin processes, and it isn't 100% clear
what a "Cygwin process" is.


(Oh wait... now I see the slight ambiguity in my question... I should
have said "... that 'ps -a' will list..." explicitly excluding the -W
option.)



-- 
Ryan T. Sammartino
http://members.shaw.ca/ryants/
BOO!  We changed Coke again!  BLEAH!  BLEAH! 

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

Re: ps and linking to cygwin.dll

[Larry Hall (RFK Partners, Inc)]

At 12:28 PM 4/24/2002, Ryan T. Sammartino wrote:
>On Tue, Apr 23, 2002 at 09:19:06PM -0400, Larry Hall (RFK Partners, Inc) wrote:
> > At 06:51 PM 4/23/2002, you wrote:
> > 
> > >Am I correct in stating that the only processes that ps will list are
> > >processes that are linked to cygwin.dll?
> > 
> > 
> > No.  See 'ps -h'.
>
>
>$ ps -h
>ps: unknown option -- h
>
>
>Pretty sure I have the latest greatest "ps".  "man ps" says:
>
>        The  ps program gives the status of all  the  Cygwin  pro-
>        cesses running on the system (ps = "process status"). 
>
>but that doesn't mean *just* Cygwin processes, and it isn't 100% clear
>what a "Cygwin process" is.
>
>
>(Oh wait... now I see the slight ambiguity in my question... I should
>have said "... that 'ps -a' will list..." explicitly excluding the -W
>option.)


OK, I didn't notice that '-h' isn't a valid option either.  The important 
part is that it lists the options.  Doesn't this answer your question?



Larry Hall                              lhall@rfk.com
RFK Partners, Inc.                      http://www.rfk.com
838 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

Re: ps and linking to cygwin.dll

[Ryan T. Sammartino]

On Wed, Apr 24, 2002 at 12:39:25PM -0400, Larry Hall (RFK Partners, Inc) wrote:
> At 12:28 PM 4/24/2002, Ryan T. Sammartino wrote:
> 
> OK, I didn't notice that '-h' isn't a valid option either.  The important 
> part is that it lists the options.  Doesn't this answer your question?
> 

Not really.  The question is *not* "How do I get ps to display Windows
processes".  The question is:

Does 'ps' (without -W) list only processes that have been linked to the
Cygwin dll?

Releated question:

The man page says ps will list "Cygwin processes".   What is a "Cygwin
process", exactly?  Is a Cygwin process an executable that's been linked
to the Cygwin dll?  Does "will list" mean "will *only* list" (in the
absence of the -W option)?


Make sense?


-- 
Ryan T. Sammartino
http://members.shaw.ca/ryants/
Remember: use logout to logout.

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

Re: ps and linking to cygwin.dll

[Larry Hall (RFK Partners, Inc)]

At 05:18 PM 4/24/2002, Ryan T. Sammartino wrote:
>On Wed, Apr 24, 2002 at 12:39:25PM -0400, Larry Hall (RFK Partners, Inc) wrote:
> > At 12:28 PM 4/24/2002, Ryan T. Sammartino wrote:
> > 
> > OK, I didn't notice that '-h' isn't a valid option either.  The important 
> > part is that it lists the options.  Doesn't this answer your question?
> > 
>
>Not really.  The question is *not* "How do I get ps to display Windows
>processes".  The question is:
>
>Does 'ps' (without -W) list only processes that have been linked to the
>Cygwin dll?
>
>Releated question:
>
>The man page says ps will list "Cygwin processes".   What is a "Cygwin
>process", exactly?  Is a Cygwin process an executable that's been linked
>to the Cygwin dll?  Does "will list" mean "will *only* list" (in the
>absence of the -W option)?
>
>
>Make sense?


Not to me but...  The answer is yes to all questions.  I expect you would 
be able to figure this out by playing with it briefly.  If not, the answer
is also in the email archives (or source code).  Sorry but I feel a little
like we're beating a dead horse here.  Anyway, we're sure it's dead now,
right?



Larry Hall                              lhall@rfk.com
RFK Partners, Inc.                      http://www.rfk.com
838 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

Re: ps and linking to cygwin.dll

[Ryan T. Sammartino]

On Wed, Apr 24, 2002 at 06:09:44PM -0400, Larry Hall (RFK Partners, Inc) wrote:
> At 05:18 PM 4/24/2002, Ryan T. Sammartino wrote:
> >
> >Not really.  The question is *not* "How do I get ps to display Windows
> >processes".  The question is:
> >
> >Does 'ps' (without -W) list only processes that have been linked to the
> >Cygwin dll?
> >
> >Releated question:
> >
> >The man page says ps will list "Cygwin processes".   What is a "Cygwin
> >process", exactly?  Is a Cygwin process an executable that's been linked
> >to the Cygwin dll?  Does "will list" mean "will *only* list" (in the
> >absence of the -W option)?
> >
> >
> >Make sense?
> 
> 
> Not to me but...  The answer is yes to all questions.  I expect you would 
> be able to figure this out by playing with it briefly.  If not, the answer
> is also in the email archives (or source code).  Sorry but I feel a little
> like we're beating a dead horse here.  Anyway, we're sure it's dead now,
> right?
> 

Not quite yet :)

So, if I see a process in 'ps -a' output that is *not* linked to Cygwin
dll, that's a bug? 


Or, does it mean that it is linked to the Cygwin dll, and that "depend"
tool that comes with Visual Studio is lying to me?


-- 
Ryan T. Sammartino
http://members.shaw.ca/ryants/
Backed up the system lately?

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

Re: ps and linking to cygwin.dll

[Larry Hall (RFK Partners, Inc)]

At 07:34 PM 4/24/2002, Ryan T. Sammartino wrote:
>On Wed, Apr 24, 2002 at 06:09:44PM -0400, Larry Hall (RFK Partners, Inc) wrote:
> > At 05:18 PM 4/24/2002, Ryan T. Sammartino wrote:
> > >
> > >Not really.  The question is *not* "How do I get ps to display Windows
> > >processes".  The question is:
> > >
> > >Does 'ps' (without -W) list only processes that have been linked to the
> > >Cygwin dll?
> > >
> > >Releated question:
> > >
> > >The man page says ps will list "Cygwin processes".   What is a "Cygwin
> > >process", exactly?  Is a Cygwin process an executable that's been linked
> > >to the Cygwin dll?  Does "will list" mean "will *only* list" (in the
> > >absence of the -W option)?
> > >
> > >
> > >Make sense?
> > 
> > 
> > Not to me but...  The answer is yes to all questions.  I expect you would 
> > be able to figure this out by playing with it briefly.  If not, the answer
> > is also in the email archives (or source code).  Sorry but I feel a little
> > like we're beating a dead horse here.  Anyway, we're sure it's dead now,
> > right?
> > 
>
>Not quite yet :)
>
>So, if I see a process in 'ps -a' output that is *not* linked to Cygwin
>dll, that's a bug? 


Yes.


>Or, does it mean that it is linked to the Cygwin dll, and that "depend"
>tool that comes with Visual Studio is lying to me?


No.  The process may load Cygwin DLL at runtime.  "depends" won't detect 
this.  Of course, if I knew the specifics of the case you're concerned 
about, I or someone else might be able to better advise you.  Is there 
any reason that you want to hide the details of the specific problem you're
seeing?





Larry Hall                              lhall@rfk.com
RFK Partners, Inc.                      http://www.rfk.com
838 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

Re: ps and linking to cygwin.dll

[Stephen Powell]

>>>>> "Ryan" == Ryan T Sammartino <ryants@shaw.ca> writes:

    > So, if I see a process in 'ps -a' output that is *not* linked to
    > Cygwin dll, that's a bug?

A process spawned by a Cygwin process will be displayed e.g. (the $ is
the bash prompt)

$ which regedit
/c/winnt/regedit

$ regedit &
[1] 1880

$ ps -a
      PID    PPID    PGID     WINPID  TTY  UID    STIME COMMAND
     1508       1    1508       1508    ?   18   Apr 24 /usr/bin/cygrunsrv
     1664    1508    1508       1772    ?   18   Apr 24 /usr/sbin/cron
      864       1     864        864    0 1000 04:58:43 /gnu/local/bin/ispell
     1592       1    1592       1592    1 1000 06:05:55 /usr/bin/bash
     1880    1592    1880       1880    1 1000 06:41:16 /c/winnt/regedit
     1760    1592    1760       1524    1 1000 06:41:23 /usr/bin/ps


In this example the parent process (PPID) of the Windows registry
editor (regedit) is the bash shell.

-- 
Stephen Powell
stephen_powell@optusnet.com.au



--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

RE: ps and linking to cygwin.dll

[Heribert Dahms]

Runtime loaded cygwin may be checked for example with
the process viewer from NTRESKIT: select process, click
memory details, open drop-down to see dlls instead of total commit.


Bye, Heribert (heribert_dahms@icon-scm.com)

> -----Original Message-----
> From:	Larry Hall (RFK Partners, Inc) [SMTP:lhall@rfk.com]
> Sent:	Thursday, April 25, 2002 16:12
> To:	Ryan T. Sammartino; Cygwin List
> Subject:	Re: ps and linking to cygwin.dll
> 
> At 07:34 PM 4/24/2002, Ryan T. Sammartino wrote:
> 
	[Heribert]  [snip]

> >Or, does it mean that it is linked to the Cygwin dll, and that "depend"
> >tool that comes with Visual Studio is lying to me?
> 
> 
> No.  The process may load Cygwin DLL at runtime.  "depends" won't detect 
> this.  Of course, if I knew the specifics of the case you're concerned 
> about, I or someone else might be able to better advise you.  Is there 
> any reason that you want to hide the details of the specific problem
> you're
> seeing?
> 
> 
> 
> 
> 
> Larry Hall                              lhall@rfk.com
> RFK Partners, Inc.                      http://www.rfk.com
> 838 Washington Street                   (508) 893-9779 - RFK Office
> Holliston, MA 01746                     (508) 893-9889 - FAX
> 

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/