Shared memory support (MIT-SHM) in 1.7?

2011-07-23 Thread egerlach 
Hi, 
I've read in http://x.cygwin.com/docs/ug/using-shared-memory.html hat cygwin 
supports shared memory, but: Note: for Cygwin 1.5 only. I ask me whether the 
documentation refers only to older versions of cygwin or also to newer versions 
1.6 and 1.7.

Who knows the answer? 

If 1.7 does not support shared memory, so I have to install legacy version 1.5 
(see http://www.cygwin.com/win-9x.html ), right?  I've just installed the  
latest version 1.7.x , so I uninstall this version (by deleting c:\cygwin, 
right?) an  I install the setup-legacy.exe , right?

Why I need shared memory? - Because the extreme fast picture viewer kuickshow 
from KDE only works with shared memory, all picture are black. Kuckshow 
complains: 
  Xlib:  extension MIT-SHM missing on display 192.168.98.101:0.0.
Other picture viewer are not so fast, so I urgently need kuickshow. 

thx
Ekkard




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Re: Shared memory support (MIT-SHM) in 1.7?

2011-07-23 Thread Corinna Vinschen 
On Jul 23 13:21, egerl...@aiai.de wrote:
 Hi, 
 I've read in http://x.cygwin.com/docs/ug/using-shared-memory.html hat cygwin 
 supports shared memory, but: Note: for Cygwin 1.5 only. I ask me whether 
 the documentation refers only to older versions of cygwin or also to newer 
 versions 1.6 and 1.7.
 
 Who knows the answer? 
 
 If 1.7 does not support shared memory, so I have to install legacy version 
 1.5 (see http://www.cygwin.com/win-9x.html ), right?  I've just installed the 
  latest version 1.7.x , so I uninstall this version (by deleting c:\cygwin, 
 right?) an  I install the setup-legacy.exe , right?

No.  Read http://x.cygwin.com/docs/ug/using-shared-memory.html again.
It says exactly what you need to do to get XSI shared memory running.
The *note* is for 1.5 only.


Corinna

(*) Btw., named POSIX shared mem support is available since 1.7.  It's
a pity that MIT-SHM extension uses XSI, rather than POSIX shared
memory, since you don't need cygserver for the POSIX implementation.

-- 
Corinna Vinschen  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader  cygwin AT cygwin DOT com
Red Hat

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