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RE: New snapshot with significant new functionality
- From: Chris Metcalf <metcalf at incert dot com>
- To: cygwin at cygwin dot com
- Date: Sun, 5 May 2002 16:14:02 -0400 (EDT)
- Subject: RE: New snapshot with significant new functionality
On Fri, 3 May 2002, Robert Collins wrote:
> Two things: if /proc/registry isn't writable, cating 1 to
> /proc/registry/.writeable won't work - without special case code. I'd
> suggest /proc/sysopts/fs/registry/writeable.
>
> Two, why not have two options:
> writeable
> nextwrite
>
> one is persistent (until all cygwin processes end). The other is for a
> single transaction.
The "single transaction" mode seems like it might be race-prone, if two
processes (or two threads of the same process) are both accessing the
registry. Perhaps it would be cleaner to allow a process to open a
registry file for write, but then require some fd-specific action (e.g. an
ioctl, or perhaps writing the fd number to a /proc/sysopts file) to enable
it to *really* work for write.
Chris Metcalf -- InCert Software -- 1 (617) 621 8080
metcalf@incert.com -- http://www.incert.com/~metcalf
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