Inter-Process Mutexes
Gentlemen, I have seen conflicting information on the web concerning inter-process mutexes in CYGWIN. I have seen outright statements that it is not supported, and I have seen statements that ALL mutexes are inter-process by default. Obviously, only one statement is currently correct. The bottom line is that I have some shared memory and multiple processes -- basically a critical section. I need a technique to implement the critical section, and preferably a solution that is portable. I have tried for countless hours over the last few days before concluding that process shared mutexes don't exist in CYGWIN despite some google results implying they do. (I hope I am wrong, and it does support them). Any solution that will work in CYGWIN and a Linux box would be appreciated -- all I need is a critical section for mutliple processes. Thank you in advance for your help! -Drake --- snippets for reference, in case my assumption is wrong (not actual code, simplified cuts) ... initializing pthread_mutexattr_init(mattr); // create default attributes, returns no error pthread_mutexattr_setpshared(mattr, PTHREAD_PROCESS_SHARED); // set for inter-process sharing (it is returning EINVAL) pthread_mutex_init(mutex, mattr); // init, returns no error ... locking/etc... pthread_mutex_lock(mutex) // returns no error in process that init'd mutex, EINVAL in other processes _ Get real-time traffic reports with Windows Live Local Search http://local.live.com/default.aspx?v=2cp=42.336065~-109.392273style=rlvl=4scene=3712634trfc=1 -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
sudden error: proc magic mismatch detected
Hi, I'd been using Cygwin on my PC w/o problems (for about 4 months), until yesterday night. Today morning I get this error... $ startx C:\cygwin\usr\X11R6\bin\xinit.exe (2556): *** proc magic mismatch detected - 0x19C16FB6/0xD079E02. This problem is probably due to using incompatible versions of the cygwin DLL. Search for cygwin1.dll using the Windows Start-Find/Search facility and delete all but the most recent version. The most recent version *should* reside in x:\cygwin\bin, where 'x' is the drive on which you have installed the cygwin distribution. Rebooting is also suggested if you are unable to find another cygwin DLL. If some has a clue as to how to fix this, please lemme know. I've reinstalled cygwin from a ISO image (which was used to install my previous setup as well). thanks, bd -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
RE: sudden error: proc magic mismatch detected
On 04 September 2006 08:41, Banibrata Dutta wrote: I'd been using Cygwin on my PC w/o problems (for about 4 months), until yesterday night. Today morning I get this error... $ startx C:\cygwin\usr\X11R6\bin\xinit.exe (2556): *** proc magic mismatch detected - 0x19C16FB6/0xD079E02. This problem is probably due to using incompatible versions of the cygwin DLL. Search for cygwin1.dll using the Windows Start-Find/Search facility and delete all but the most recent version. The most recent version *should* reside in x:\cygwin\bin, where 'x' is the drive on which you have installed the cygwin distribution. Rebooting is also suggested if you are unable to find another cygwin DLL. If some has a clue as to how to fix this, please lemme know. Well, it is possible that you are using incompatible versions of the cygwin DLL. You could find out by searching for cygwin1.dll using the Windows Start-Find/Search facility and deleting all but the most recent version. BTW, the most recent version *should* reside in x:\cygwin\bin, where 'x' is the drive on which you have installed the cygwin distribution. Oh, apparently, rebooting is also suggested if you are unable to find another cygwin DLL. I've reinstalled cygwin from a ISO image (which was used to install my previous setup as well). Sounds like you've probably ended up with incompatible versions of the cygwin DLL. Problem reports: http://cygwin.com/problems.html If you were to send the output from cygcheck - as an attachment please - as it describes on the problem reporting page, it might well show us how many versions of the cygwin dll you have. cheers, DaveK -- Can't think of a witty .sigline today -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Problem with rpcgen
Hi, I'm new to cygwin. I'm trying to use it but I have problem with rpcgen. It wont geberate needed classes for RPC communication. When I run rpcgen demo.x I receive this error message: execl: No such file or directory execl: No such file or directory execl: No such file or directory execl: No such file or directory But demo.x is in this directory ()root/home directory). I have installed sun rpc package from libs category and expect which is in Interpreters category. I'm using Windows XP. Any suggestions? Thanx, Nemanja -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: sudden error: proc magic mismatch detected
Thanks a lot Dave. The cygcheck -s -v -r cygcheck.out did the trick. Using it's output I figured that somehow, from somewhere a second cygwin1.dll had got installed in C:\WINDOWS\system32\ folder. It didn't showup in the result of file-search, probably because search ignores system-files. Removing the duplicate .ddl fixed this issue. Thanks again. regards, bd On 9/4/06, Dave Korn [EMAIL PROTECTED] wrote: On 04 September 2006 08:41, Banibrata Dutta wrote: I'd been using Cygwin on my PC w/o problems (for about 4 months), until yesterday night. Today morning I get this error... $ startx C:\cygwin\usr\X11R6\bin\xinit.exe (2556): *** proc magic mismatch detected - 0x19C16FB6/0xD079E02. This problem is probably due to using incompatible versions of the cygwin DLL. Search for cygwin1.dll using the Windows Start-Find/Search facility and delete all but the most recent version. The most recent version *should* reside in x:\cygwin\bin, where 'x' is the drive on which you have installed the cygwin distribution. Rebooting is also suggested if you are unable to find another cygwin DLL. If some has a clue as to how to fix this, please lemme know. Well, it is possible that you are using incompatible versions of the cygwin DLL. You could find out by searching for cygwin1.dll using the Windows Start-Find/Search facility and deleting all but the most recent version. BTW, the most recent version *should* reside in x:\cygwin\bin, where 'x' is the drive on which you have installed the cygwin distribution. Oh, apparently, rebooting is also suggested if you are unable to find another cygwin DLL. I've reinstalled cygwin from a ISO image (which was used to install my previous setup as well). Sounds like you've probably ended up with incompatible versions of the cygwin DLL. Problem reports: http://cygwin.com/problems.html If you were to send the output from cygcheck - as an attachment please - as it describes on the problem reporting page, it might well show us how many versions of the cygwin dll you have. cheers, DaveK -- Can't think of a witty .sigline today -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ -- Diamond is a piece of coal that did well under pressure. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Inter-Process Mutexes
Drake Baker wrote: Gentlemen, I have seen conflicting information on the web concerning inter-process mutexes in CYGWIN. I have seen outright statements that it is not supported, and I have seen statements that ALL mutexes are inter-process by default. Obviously, only one statement is currently correct. The bottom line is that I have some shared memory and multiple processes -- basically a critical section. I need a technique to implement the critical section, and preferably a solution that is portable. I have tried for countless hours over the last few days before concluding that process shared mutexes don't exist in CYGWIN despite some google results implying they do. (I hope I am wrong, and it does support them). Any solution that will work in CYGWIN and a Linux box would be appreciated -- all I need is a critical section for mutliple processes. Thank you in advance for your help! -Drake --- snippets for reference, in case my assumption is wrong (not actual code, simplified cuts) ... initializing pthread_mutexattr_init(mattr); // create default attributes, returns no error pthread_mutexattr_setpshared(mattr, PTHREAD_PROCESS_SHARED); // set for inter-process sharing (it is returning EINVAL) pthread_mutex_init(mutex, mattr); // init, returns no error ... locking/etc... pthread_mutex_lock(mutex) // returns no error in process that init'd mutex, EINVAL in other processes Cygwin has System V semaphores and shared memory. You can use that. -- VH signature.asc Description: OpenPGP digital signature
libungif and emacs-cvs
Building emacs-cvs, 'configure' gives: checking gif_lib.h usability... yes checking gif_lib.h presence... yes checking for gif_lib.h... yes checking for EGifPutExtensionLast in -lungif... no --- so that it buids without ungif support: ... Configured for `i686-pc-cygwin'. Where should the build process find the source code?/tmp/emacs What operating system and machine description files should Emacs use? `s/cygwin.h' and `m/intel386.h' What compiler should emacs be built with? gcc -g -O2 Should Emacs use the GNU version of malloc? yes Should Emacs use a relocating allocator for buffers?yes Should Emacs use mmap(2) for buffer allocation? no What window system should Emacs use?x11 What toolkit should Emacs use? LUCID Where do we find X Windows header files?/usr/X11R6/include Where do we find X Windows libraries? /usr/X11R6/lib Does Emacs use -lXaw3d? yes Does Emacs use -lXpm? yes Does Emacs use -ljpeg? yes Does Emacs use -ltiff? yes Does Emacs use -lungif? no=== Does Emacs use -lpng? yes Does Emacs use X toolkit scroll bars? yes ... I do not remember this behaviour previously (but it could be), so I flag this in the case it is a problem with libungif. Emacs-cvs requestes libungif 4.1.0b1 or higher and I have installed libungif, libungif4 packages 4.1.4 I have all Cygwin installed and updated. Cheers, Angelo. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: libungif and emacs-cvs
On Mon, 4 Sep 2006, Angelo Graziosi wrote: Building emacs-cvs, 'configure' gives: checking gif_lib.h usability... yes checking gif_lib.h presence... yes checking for gif_lib.h... yes checking for EGifPutExtensionLast in -lungif... no ^^ --- so that it buids without ungif support: It would probably be enlightening to look at config.log to see *why* configure thinks EGifPutExtensionLast is not in -lungif... I do not remember this behaviour previously (but it could be), so I flag this in the case it is a problem with libungif. Or something else completely unrelated that caused the test program to fail, thus making configure think that it didn't have a valid -lungif. HTH, Igor -- http://cs.nyu.edu/~pechtcha/ |\ _,,,---,,_[EMAIL PROTECTED] | [EMAIL PROTECTED] ZZZzz /,`.-'`'-. ;-;;,_Igor Peshansky, Ph.D. (name changed!) |,4- ) )-,_. ,\ ( `'-' old name: Igor Pechtchanski '---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow! Las! je suis sot... -Mais non, tu ne l'es pas, puisque tu t'en rends compte. But no -- you are no fool; you call yourself a fool, there's proof enough in that! -- Rostand, Cyrano de Bergerac -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Problem with rpcgen
Memarovic Nemanja wrote: Hi, I'm new to cygwin. I'm trying to use it but I have problem with rpcgen. It wont geberate needed classes for RPC communication. When I run rpcgen demo.x I receive this error message: execl: No such file or directory execl: No such file or directory execl: No such file or directory execl: No such file or directory But demo.x is in this directory ()root/home directory). I have installed sun rpc package from libs category and expect which is in Interpreters category. I'm using Windows XP. Any suggestions? As always: Problem reports: http://cygwin.com/problems.html Without this information, we're left here with WAGs. Mine is that demo.x isn't found because you didn't specify the full path and the directory it's in isn't in your path. -- Larry Hall http://www.rfk.com RFK Partners, Inc. (508) 893-9779 - RFK Office 216 Dalton Rd. (508) 893-9889 - FAX Holliston, MA 01746 -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
No mails with executable attachements to BMBWK
Aus sicherheitstechnischen Gründen ist der Versand von ausfuehrbaren Dateien an das BMBWK gesperrt. Sender: cygwin@cygwin.com Recipient(s): [EMAIL PROTECTED] Subject: Re: Message Error -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
RE: bash processes defunct after ssh session disconnection
Is there a chance this issue will be solved? -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Variation on: regular user, bash cannot find /tmp
I found a few similar problems in your mail archives, but I did not quickly find the problem I'm having. Attached is cygcheck output as requested. A few days ago, as a normal user on my MS Windows box, I went to cygwin.com and ran setup.exe to install things, for just me. Everything seemed to go OK. When I ran the shortcut, it brought up a bash. First time up it did some setup. Things worked. Then I decided to install it for everyone. I deleted all the cygwin stuff I could find from my directories. Then, from an Admin account, I went to cygwin.com again, ran setup.exe again, and chose For everyone and put things under c:\cygwin. Again, everything seemed to go OK. But when I, as the original user, try the newly installed shortcut on my desktop, I get bash.exe: warning: could not find /tmp, please create! bash-3.1$ complaint. The other reports I found seem to indicate it gets further than I get. At first, I thought the entire installation must have gone south, somehow. But... if I login as a different (and non-admin) user, the first time I click on the Cygwin shortcut on that different user's desktop, it does its first-time bash setup and works. I've been trying to find some file or some shred of data that got left over and undeleted from my first (and personal) installation that could be polluting or distracting the for-everyone installation. I've tried running the batch commands by hand from a command shell, with the same result. Is there an option to bash to have it dump out a lot more of what it is doing. I already tried -v. `pwd` indicates I'm in /usr/bin. But no commands seem to work. `echo ~` indicates I'm in my Windows homedir, not my cygwin homedir, and this is a difference with the other users. But how and/or why? And how to I fit it? I can't seem to run any non-builtin program; I always get file not found, even with explicit pathnames, absolute and relative to `pwd`. I was able to do `set ~/foo.txt` from as me (David) and have attached that as well. Also attached (the ...2 versions) are the cygcheck and set from a user that works. Maybe somebody can find the crucial difference and tell me how to fix it? I use Linux daily for work; my Windows skills are minimal. Any clues? Thanks, David [EMAIL PROTECTED] cygcheck.out Description: Binary data !::='::\' !C:='C:\cygwin\bin' ALLUSERSPROFILE='C:\Documents and Settings\All Users' APPDATA='C:\Documents and Settings\David\Application Data' BASH=/bin/sh BASH_ARGC=() BASH_ARGV=() BASH_LINENO=() BASH_SOURCE=() BASH_VERSINFO=([0]=3 [1]=1 [2]=17 [3]=6 [4]=release [5]=i686-pc-cygwin) BASH_VERSION='3.1.17(6)-release' CLASSPATH='C:\Program Files\QuickTime\QTSystem\QTJava.zip' COMMONPROGRAMFILES='C:\Program Files\Common Files' COMPUTERNAME=THEMORNINGLIGHT COMSPEC='C:\WINDOWS\system32\cmd.exe' DIRSTACK=() EUID=400 FP_NO_HOST_CHECK=NO GROUPS=() HISTFILE='/cygdrive/c/Documents and Settings/David/.bash_history' HISTFILESIZE=500 HISTSIZE=500 HOME='/cygdrive/c/Documents and Settings/David' HOMEDRIVE=C: HOMEPATH='\Documents and Settings\David' HOSTNAME=TheMorningLight HOSTTYPE=i686 IFS=$' \t\n' LOGONSERVER='\\THEMORNINGLIGHT' MACHTYPE=i686-pc-cygwin MAILCHECK=60 NUMBER_OF_PROCESSORS=1 OPTERR=1 OPTIND=1 OS=Windows_NT OSTYPE=cygwin PATH='/cygdrive/c/WINDOWS/system32:/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/System32/Wbem:/cygdrive/c/Program Files/QuickTime/QTSystem/' PATHEXT='.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH' PIPESTATUS=([0]=0) PPID=1 PROCESSOR_ARCHITECTURE=x86 PROCESSOR_IDENTIFIER='x86 Family 15 Model 3 Stepping 4, GenuineIntel' PROCESSOR_LEVEL=15 PROCESSOR_REVISION=0304 PROGRAMFILES='C:\Program Files' PROMPT='$P$G' PS1='\s-\v\$ ' PS2=' ' PS4='+ ' PWD=/usr/bin QTJAVA='C:\Program Files\QuickTime\QTSystem\QTJava.zip' SESSIONNAME=Console SHELL=/bin/sh SHELLOPTS=braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor SHLVL=1 SYSTEMDRIVE=C: SYSTEMROOT='C:\WINDOWS' TEMP=/cygdrive/c/DOCUME~1/David/LOCALS~1/Temp TERM=cygwin TMP=/cygdrive/c/DOCUME~1/David/LOCALS~1/Temp UID=400 USERDOMAIN=THEMORNINGLIGHT USERNAME=David USERPROFILE='C:\Documents and Settings\David' WINDIR='C:\WINDOWS' _=set cygcheck2.out Description: Binary data !::='::\' !C:='C:\cygwin\bin' ALLUSERSPROFILE='C:\Documents and Settings\All Users' APPDATA='C:\Documents and Settings\Benji\Application Data' BASH=/usr/bin/bash BASH_ARGC=() BASH_ARGV=() BASH_LINENO=() BASH_SOURCE=() BASH_VERSINFO=([0]=3 [1]=1 [2]=17 [3]=6 [4]=release [5]=i686-pc-cygwin) BASH_VERSION='3.1.17(6)-release' CLASSPATH='C:\Program Files\QuickTime\QTSystem\QTJava.zip' COMMONPROGRAMFILES='C:\Program Files\Common Files' COMPUTERNAME=THEMORNINGLIGHT COMSPEC='C:\WINDOWS\system32\cmd.exe' CVS_RSH=/bin/ssh DIRSTACK=() EUID=1012 FP_NO_HOST_CHECK=NO GROUPS=() HISTFILE=/home/Benji/.bash_history HISTFILESIZE=500 HISTSIZE=500 HOME=/home/Benji HOMEDRIVE=C: HOMEPATH='\Documents and Settings\Benji' HOSTNAME=TheMorningLight HOSTTYPE=i686 IFS=$' \t\n'
