| Re: getpid in Mac OS X [message #39765] |
Mon, 14 June 2004 12:43  |
MKatz843
Messages: 98
Registered: March 2002
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Member |
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Miguel Angel Cordoba wrote:
> Thank you,
> but this solution only works if only one IDL process is running. In my
> case there are 4 processes and I need all the PID's.
OK, so all that takes is a few strokes of the pen...
The function below returns a list. Below the code snippet is an
example run.
Note that this is Darwin (OS X) specific. It wouldn't take much to
make it work on Linux.
---------code---------
function idl_pids
pid = -1 ;--- default value appropriate for Mac, PC
if (!version.os EQ 'darwin') then begin
spawn, 'ps', list
print, '----------'
print, list
print, '----------'
w = where((strpos(list, 'Applications') GT 0) $
and (strpos(list, 'idl') GT 0), count)
if (count LT 1) then begin
print, 'idl_pids error: no valid jobs'
return, -1
endif
pid = lonarr(count)
for i=0,count-1 do $
pid(i) = long( (strsplit(list(w(i)), ' ', /EXTRACT))(0) )
endif
return, pid
end
------ end of code ------
IDL> print, idl_pids()
----------
PID TT STAT TIME COMMAND 11879 std Ss 0:00.06 -csh
11898 std S+ 0:03.54 /Applications/idl_6.0/bin/bin.darwin.ppc/idl
11947 std S+ 0:00.02 tcsh -c ps 11885 p2 Ss 0:00.06 -csh
11901 p2 S+ 0:03.36 /Applications/idl_6.0/bin/bin.darwin.ppc/idl
11891 p3 Ss 0:00.07 -csh
11894 p3 S+ 0:03.75 /Applications/idl_6.0/bin/bin.darwin.ppc/idl
----------
11898 11901 11894
Get rid of the print statements if you like.
M. Katz
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| Re: getpid in Mac OS X [message #39773 is a reply to message #39771] |
Mon, 14 June 2004 06:07  |
Miguel Angel Cordoba
Messages: 13
Registered: April 2004
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Junior Member |
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Thank you,
but this solution only works if only one IDL process is running. In my
case there are 4 processes and I need all the PID's.
Regards.
M. Katz wrote:
> Here's a possible solution. It's more of a stopgap than anything
> elegant....
> When you spawn, 'ps' you get output that looks like this
>
> PID TT STAT TIME COMMAND 486 std Ss 0:00.27 -csh
> 614 std S+ 0:23.30 /Applications/idl_6.0/bin/bin.darwin.ppc/idl
> 734 std R+ 0:00.05 tcsh -c ps
>
> So we'll use that output to look for the corrent line, and identify
> the ID as 614 in this case
>
> === code snippet ===
> pid = -1 ;--- default value means unknown PID
>
> if (!version.os EQ 'darwin') then begin ;--- we're on a Mac
> spawn, 'ps', list ;--- this returns a long list of processes
> ;--- My IDL app lives in /Applications, so here I'm looking for
> a
> ; line that has "/Applications" and "idl" in the line.
> ; If your IDL app lives somewhere else, change this to
> something else
> ;--- Find which process might be the right one.
> w = where((strpos(list, 'Applications') GT 0) and (strpos(list,
> 'idl') GT 0), count)
> if (count GT 0) then $
> pid = long( (strsplit(list(w), ' ', /EXTRACT))(0) )
> endif
> === end of code snippet ===
>
> Miguel Angel Cordoba <cordoba_nospam@grahi.upc.es> wrote in message news:<40C9B961.8000605@grahi.upc.es>...
>
>
>> Hi,
>> I want to get the process identification (pid) of my IDL. In
>> Linux I get the pid calling:
>>
>> pid=CALL_EXTERNAL('/usr/lib/i686/libc.so.6','getpid')
>>
>> but this library doesn't exist in Mac Os X. I had probed with
>> the '/usr/lib/libc.dylib' but didn't work. Any ideas?
>>
>> IDL>pid=CALL_EXTERNAL('/usr/lib/libc.dylib','getpid')
>> % CALL_EXTERNAL: Error loading sharable exectuble.
>> Symbol: getpid, FILE=/usr/lib/libc.dylib
>> not a Mach-O MH-BUNDLE file type
>>
>> Thanks a lot.
>>
>> --
>> _________________________________________________________
>> Miguel Angel Cordoba
>>
>>
--
_________________________________________________________
Miguel Angel Cordoba mailto:cordoba@grahi.upc.es
Tel. +34 934 017 371
Fax. +34 934 054 194
---------------------------------------------------------
Grup de Recerca Aplicada en Hidrometeorologia (GRAHI-UPC)
http://www.grahi.upc.es
---------------------------------------------------------
Centre membre de la Xarxa d'Innovacio Tecnologica XIT
http://www.cidem.com/xarxait
_________________________________________________________
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| Re: getpid in Mac OS X [message #39785 is a reply to message #39773] |
Fri, 11 June 2004 14:56 |
MKatz843
Messages: 98
Registered: March 2002
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Member |
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Here's a possible solution. It's more of a stopgap than anything
elegant....
When you spawn, 'ps' you get output that looks like this
PID TT STAT TIME COMMAND 486 std Ss 0:00.27 -csh
614 std S+ 0:23.30 /Applications/idl_6.0/bin/bin.darwin.ppc/idl
734 std R+ 0:00.05 tcsh -c ps
So we'll use that output to look for the corrent line, and identify
the ID as 614 in this case
=== code snippet ===
pid = -1 ;--- default value means unknown PID
if (!version.os EQ 'darwin') then begin ;--- we're on a Mac
spawn, 'ps', list ;--- this returns a long list of processes
;--- My IDL app lives in /Applications, so here I'm looking for
a
; line that has "/Applications" and "idl" in the line.
; If your IDL app lives somewhere else, change this to
something else
;--- Find which process might be the right one.
w = where((strpos(list, 'Applications') GT 0) and (strpos(list,
'idl') GT 0), count)
if (count GT 0) then $
pid = long( (strsplit(list(w), ' ', /EXTRACT))(0) )
endif
=== end of code snippet ===
Miguel Angel Cordoba <cordoba_nospam@grahi.upc.es> wrote in message news:<40C9B961.8000605@grahi.upc.es>...
> Hi,
> I want to get the process identification (pid) of my IDL. In
> Linux I get the pid calling:
>
> pid=CALL_EXTERNAL('/usr/lib/i686/libc.so.6','getpid')
>
> but this library doesn't exist in Mac Os X. I had probed with
> the '/usr/lib/libc.dylib' but didn't work. Any ideas?
>
> IDL>pid=CALL_EXTERNAL('/usr/lib/libc.dylib','getpid')
> % CALL_EXTERNAL: Error loading sharable exectuble.
> Symbol: getpid, FILE=/usr/lib/libc.dylib
> not a Mach-O MH-BUNDLE file type
>
> Thanks a lot.
>
> --
> _________________________________________________________
> Miguel Angel Cordoba
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| Re: getpid in Mac OS X [message #39900 is a reply to message #39765] |
Tue, 15 June 2004 02:22 |
Miguel Angel Cordoba
Messages: 13
Registered: April 2004
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Junior Member |
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Thank you,
but the problem is that I need the PID off the process. If I execute three
processes all off them needs his PID and with 'ps' list I think that
it's not possible.
With the 'ps' method I can find the three PID's but I can't know who is his
owner.
With the "call_external" method in all the programs I execute this to
get the
PID off the process.
SOLARIS:
my_pid=CALL_EXTERNAL('/lib/sparcv9/libc.so','getpid')
LINUX
my_pdi=CALL_EXTERNAL('/lib/i686/libc.so.6','getpid')
then the problem in Mac Os X is the error:
IDL>pid=CALL_EXTERNAL('/usr/lib/libc.dylib','getpid')
% CALL_EXTERNAL: Error loading sharable exectuble.
Symbol: getpid, FILE=/usr/lib/libc.dylib
not a Mach-O MH-BUNDLE file type
Any ideas?. Thank you.
M. Katz wrote:
> Miguel Angel Cordoba wrote:
>
>
>> Thank you,
>> but this solution only works if only one IDL process is running. In my
>> case there are 4 processes and I need all the PID's.
>>
>>
>
> OK, so all that takes is a few strokes of the pen...
> The function below returns a list. Below the code snippet is an
> example run.
> Note that this is Darwin (OS X) specific. It wouldn't take much to
> make it work on Linux.
>
> ---------code---------
> function idl_pids
> pid = -1 ;--- default value appropriate for Mac, PC
>
> if (!version.os EQ 'darwin') then begin
> spawn, 'ps', list
> print, '----------'
> print, list
> print, '----------'
> w = where((strpos(list, 'Applications') GT 0) $
> and (strpos(list, 'idl') GT 0), count)
> if (count LT 1) then begin
> print, 'idl_pids error: no valid jobs'
> return, -1
> endif
> pid = lonarr(count)
> for i=0,count-1 do $
> pid(i) = long( (strsplit(list(w(i)), ' ', /EXTRACT))(0) )
> endif
>
> return, pid
> end
> ------ end of code ------
>
> IDL> print, idl_pids()
> ----------
> PID TT STAT TIME COMMAND 11879 std Ss 0:00.06 -csh
> 11898 std S+ 0:03.54 /Applications/idl_6.0/bin/bin.darwin.ppc/idl
> 11947 std S+ 0:00.02 tcsh -c ps 11885 p2 Ss 0:00.06 -csh
> 11901 p2 S+ 0:03.36 /Applications/idl_6.0/bin/bin.darwin.ppc/idl
> 11891 p3 Ss 0:00.07 -csh
> 11894 p3 S+ 0:03.75 /Applications/idl_6.0/bin/bin.darwin.ppc/idl
> ----------
> 11898 11901 11894
>
> Get rid of the print statements if you like.
> M. Katz
>
>
--
_________________________________________________________
Miguel Angel Cordoba
---------------------------------------------------------
Grup de Recerca Aplicada en Hidrometeorologia (GRAHI-UPC)
http://www.grahi.upc.es
---------------------------------------------------------
Centre membre de la Xarxa d'Innovacio Tecnologica XIT
http://www.cidem.com/xarxait
_________________________________________________________
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