[GRASS-dev] [GRASS GIS] #2452: v.surf.rst option devi Windows problem

GRASS GIS trac at osgeo.org
Sat Oct 18 07:48:23 PDT 2014

#2452: v.surf.rst option devi Windows problem
 Reporter:  annakrat     |       Owner:  grass-dev@…              
     Type:  defect       |      Status:  new                      
 Priority:  normal       |   Milestone:  7.0.0                    
Component:  Vector       |     Version:  svn-releasebranch70      
 Keywords:  v.surf.rst   |    Platform:  MSWindows 8              
      Cpu:  Unspecified  |  

Comment(by glynn):

 Replying to [comment:2 hellik]:

 > AFAIK overwriting existing files (--overwrite) isn't really working in
 the windows system architecture as opened files - in contrast to
 linux/unix - can't be overwritten.

 1. Overwriting open files and overwriting existing files aren't normally
 the same thing.

 2. There is no inherent problem with modifying open files (i.e. having
 multiple processes open a file for writing). The problem comes from
 deleting, renaming or replacing (renaming onto) open files. Unix allows
 this, Windows doesn't.

 The issue boils down to determining why files which were opened by one
 command are still open when it comes to running a subsequent command.

 It may be related to database drivers, as these may persist after the
 command which started them has terminated (they shouldn't, but past
 reports suggest that they sometimes do).

 Or it may be related to "services" such as indexing, antivirus, version-
 control shell extensions, etc. Perhaps the initial access results in a
 notification to the service, which then decides to take a look at the file
 as soon as it's closed.

Ticket URL: <http://trac.osgeo.org/grass/ticket/2452#comment:5>
GRASS GIS <http://grass.osgeo.org>

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