Re: [Boost-users] Boost.Filesystem

From: Elisha Berns (e.berns_at_[hidden])
Date: 2006-04-04 14:51:51

Well even simple functionality would be very useful: 

1) The ability to set read/write/delete access to the
file/directory for other processes.  
2) The ability to get an OS specific handle to the
file/directory from the Boost.Filesystem lib so that
you can then manipulate file permissions yourself. 
For example, a method signature like
boost::file_handle get_filehandle() where
boost::file_handle is a typedef per OS.  But that
would totally break encapsulation for all the iostream
libraries, right?

Elisha

--- Sebastian Redl <sebastian.redl_at_[hidden]>
wrote:

> Calderon Hector wrote:
> 
> >I doesn't have to support every operative system
> out
> >there. Can it be done to support the major
> operative
> >systems at least?
> >  
> >
> Still not easily. Windows and Unix have quite
> different permission 
> systems: Windows uses access control lists, which
> support fine-grained 
> control of who is able to access which files. Unix
> uses user/group/world 
> permissions, which are far less fine-grained, with
> some *nices in some 
> configurations supporting POSIX ACLs too. (For
> example, this is a 
> compile flag that must be enabled for the file
> systems in the Linux kernel.)
> 
> Finding a common interface for even these two is
> therefore very 
> difficult. I'm sure though that there would be
> interest in any ideas you 
> might have.
> 
> Sebastian Redl
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