Mailing-List: contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT sources DOT redhat DOT com Delivered-To: mailing list cygwin AT sources DOT redhat DOT com Message-ID: <3BBAE7B8.4567166E@iee.org> Date: Wed, 03 Oct 2001 11:26:00 +0100 From: Don Sharp X-Mailer: Mozilla 4.78 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: Robert Legros CC: gnuwin32 Subject: Re: 1.3.3-2: Process creation is possible with ppid = 0 and pgid = 0 References: <20011003090000 DOT 448 DOT qmail AT web11502 DOT mail DOT yahoo DOT com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Robert Legros wrote: > > Hello, > > It is possible to create a Cygwin process whose ppid > and pgid are both zero. > > If you type the following commands at the shell > command prompt (bash or ash) : > sh -c "sleep 10 &" > ps > you will see a process whose PPID and PGID are 0. > Yes you do but note that if the doublequote comes before the ampersand the list is what you might expect. $ sh -c " sleep 10" & [1] 215 $ ps PID PPID PGID WINPID TTY UID STIME COMMAND 205 1 205 205 con 1000 09:28:07 /usr/bin/rxvt 72 205 72 207 0 1000 09:28:07 /usr/bin/bash 215 72 215 170 0 1000 11:17:35 /usr/bin/sh 148 215 215 148 0 1000 11:17:35 /usr/bin/sleep 224 72 224 229 0 1000 11:17:36 /usr/bin/ps Hope that helps. Don Sharp > I really do suppose it was not meant to allow such a > thing. Normally, a detached process should have ppid > and pgid with value 1. That's what does occur when you > type the following commands : > sleep 10 & > ps > > Best Regards, > > ===== > Robert Legros > south Brussels, Belgium > robert_legros AT yahoo DOT com > > __________________________________________________ > Do You Yahoo!? > Listen to your Yahoo! Mail messages from any phone. > http://phone.yahoo.com > > ------------------------------------------------------------------------ > > Cygnus Win95/NT Configuration Diagnostics > Current System Time: Tue Oct 2 15:43:23 2001 > > WinNT Ver 5.0 build 2195 Service Pack 1 > > Path: /usr/local/bin > /usr/bin > /bin > /cygdrive/c/WINNT/system32 > /cygdrive/c/WINNT > /cygdrive/c/WINNT/System32/Wbem > /cygdrive/c/Program Files/Symantec/pcAnywhere/ > . > > SysDir: C:\WINNT\System32 > WinDir: C:\WINNT > > PWD = `/home/rleg/project/cygwin/bug_001' > USER = `rleg' > MAKE_MODE = `unix' > HOME = `/home/rleg' > > NUMBER_OF_PROCESSORS = `1' > PROMPT = `$P$G' > LOGONSERVER = `\\ZAV002361' > OS2LIBPATH = `C:\WINNT\system32\os2\dll;' > COMSPEC = `C:\WINNT\system32\cmd.exe' > !C: = `C:\cygwin\bin' > SYSTEMDRIVE = `C:' > HOSTNAME = `ZAV002361' > PROCESSOR_REVISION = `080a' > PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH' > COMPUTERNAME = `ZAV002361' > WINDIR = `C:\WINNT' > USERPROFILE = `C:\Documents and Settings\rleg' > PS1 = `\[\033]0;\w\007 > \033[32m\]\u@\h \[\033[33m\w\033[0m\] > $ ' > PROGRAMFILES = `C:\Program Files' > !:: = `::\' > MACHTYPE = `i686-pc-cygwin' > PROCESSOR_IDENTIFIER = `x86 Family 6 Model 8 Stepping 10, GenuineIntel' > OS = `Windows_NT' > OLDPWD = `/home/rleg/project/cygwin/bug_001/cygwin-1.3.3-2/winsup/utils' > PROCESSOR_ARCHITECTURE = `x86' > TEMP = `/cygdrive/c/DOCUME~1/rleg/LOCALS~1/Temp' > PROCESSOR_LEVEL = `6' > SYSTEMROOT = `C:\WINNT' > TMP = `/cygdrive/c/DOCUME~1/rleg/LOCALS~1/Temp' > HOMEDRIVE = `C:' > ALLUSERSPROFILE = `C:\Documents and Settings\All Users' > SHLVL = `1' > APPDATA = `C:\Documents and Settings\rleg\Application Data' > COMMONPROGRAMFILES = `C:\Program Files\Common Files' > HOMEPATH = `\' > USERDOMAIN = `ZAV002361' > USERNAME = `rleg' > SHELL = `/bin/bash' > HOSTTYPE = `i686' > OSTYPE = `cygwin' > TERM = `cygwin' > _ = `/usr/bin/cygcheck' > TZ = `RST-1RDT-2,M3.5.0/2,M10.5.0/3' > > HKEY_CURRENT_USER\Software\Cygnus Solutions > HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin > HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2 > (default) = `/cygdrive' > cygdrive flags = 0x00000022 > HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options > HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\Cygnus Solutions > (default) = (unsupported type) > HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions > HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin > HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2 > HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/ > (default) = `C:/cygwin' > flags = 0x0000000a > HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin > (default) = `C:/cygwin/bin' > flags = 0x0000000a > HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib > (default) = `C:/cygwin/lib' > flags = 0x0000000a > HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options > > a: fd N/A N/A > c: hd FAT32 19082Mb 22% CP UN > d: cd N/A N/A > e: net NTFS 17358Mb 97% CP CS UN PA FC soft > f: net NTFS 6243Mb 75% CP CS UN PA FC data > > C:\cygwin\bin /usr/bin system binmode > C:\cygwin\lib /usr/lib system binmode > C:\cygwin / system binmode > c: /cygdrive/c user binmode,noumount > e: /cygdrive/e user binmode,noumount > f: /cygdrive/f user binmode,noumount > > Found: C:\cygwin\bin\bash.exe > Found: C:\cygwin\bin\cat.exe > Found: C:\cygwin\bin\cpp.exe > Found: C:\cygwin\bin\find.exe > Found: C:\cygwin\bin\gcc.exe > Found: C:\cygwin\bin\gdb.exe > Found: C:\cygwin\bin\ld.exe > Found: C:\cygwin\bin\ls.exe > Found: C:\cygwin\bin\make.exe > Found: C:\cygwin\bin\sh.exe > > 56k 2000/12/03 C:\cygwin\bin\cygbz21.0.dll - os=4.0 img=1.0 sys=4.0 > "cygbz21.0.dll" v0.0 ts=2000/11/21 0:53 > 81k 2000/12/05 C:\cygwin\bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0 > "cygitcl30.dll" v0.0 ts=2000/11/26 2:43 > 35k 2000/12/05 C:\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0 > "cygitk30.dll" v0.0 ts=2000/11/26 2:43 > 390k 2000/12/05 C:\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0 > "cygtcl80.dll" v0.0 ts=2000/11/26 2:39 > 5k 2000/12/05 C:\cygwin\bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0 > 10k 2000/12/05 C:\cygwin\bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0 > "cygtclreg80.dll" v0.0 ts=2000/11/26 2:39 > 623k 2000/12/05 C:\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0 > "cygtk80.dll" v0.0 ts=2000/11/26 2:43 > 18k 2000/10/23 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0 > "cyggdbm.dll" v0.0 ts=2000/10/23 4:26 > 21k 2001/06/20 C:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0 > "cygintl.dll" v0.0 ts=2001/6/20 19:09 > 45k 2001/07/04 C:\cygwin\bin\cygjbig1.dll - os=4.0 img=1.0 sys=4.0 > "cygjbig1.dll" v0.0 ts=2001/7/4 5:25 > 119k 2001/06/06 C:\cygwin\bin\cygjpeg6b.dll - os=4.0 img=1.0 sys=4.0 > "cygjpeg6b.dll" v0.0 ts=2001/6/6 6:27 > 163k 2001/05/06 C:\cygwin\bin\cygpng2.dll - os=4.0 img=1.0 sys=4.0 > "cygpng2.dll" v0.0 ts=2001/5/6 6:05 > 45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0 > "cygform5.dll" v0.0 ts=2001/4/25 7:28 > 26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0 > "cygmenu5.dll" v0.0 ts=2001/4/25 7:27 > 156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0 > "cygncurses++5.dll" v0.0 ts=2001/4/25 7:29 > 226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0 > "cygncurses5.dll" v0.0 ts=2001/4/25 7:17 > 15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0 > "cygpanel5.dll" v0.0 ts=2001/4/25 7:27 > 17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0 > "cyghistory4.dll" v0.0 ts=2001/1/7 5:34 > 21k 2001/06/28 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0 > "cyghistory5.dll" v0.0 ts=2001/6/28 4:27 > 108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0 > "cygreadline4.dll" v0.0 ts=2001/1/7 5:34 > 135k 2001/06/28 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0 > "cygreadline5.dll" v0.0 ts=2001/6/28 4:27 > 245k 2001/06/12 C:\cygwin\bin\cygtiff3.dll - os=4.0 img=1.0 sys=4.0 > "cygtiff3.dll" v0.0 ts=2001/6/12 19:25 > 41k 2001/07/04 C:\cygwin\bin\cygXpm-noX4.dll - os=4.0 img=1.0 sys=4.0 > "cygXpm-noX4.dll" v0.0 ts=2001/7/4 3:21 > 45k 2001/07/04 C:\cygwin\bin\cygXpm-X4.dll - os=4.0 img=1.0 sys=4.0 > "cygXpm-X4.dll" v0.0 ts=2000/11/20 3:45 > 49k 2001/02/03 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0 > "cygz.dll" v0.0 ts=2001/2/3 21:35 > 701k 2001/09/13 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0 > "cygwin1.dll" v0.0 ts=2001/9/13 5:54 > Cygwin DLL version info: > dll major: 1003 > dll minor: 3 > dll epoch: 19 > dll bad signal mask: 19005 > dll old termios: 5 > dll malloc env: 28 > api major: 0 > api minor: 46 > shared data: 3 > dll identifier: cygwin1 > mount registry: 2 > cygnus registry name: Cygnus Solutions > cygwin registry name: Cygwin > program options name: Program Options > cygwin mount registry name: mounts v2 > cygdrive flags: cygdrive flags > cygdrive prefix: cygdrive prefix > cygdrive default prefix: > build date: Wed Sep 12 23:54:31 EDT 2001 > shared id: cygwin1S3 > > Use -h to see help about each section > > ------------------------------------------------------------------------ > -- > 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/ -- 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/