Karl Fogel <email@example.com> writes:
> > I'll move the code in question into apr_file_set_read_only() in io.c
> > like so
> Even if no one has provided the Win32 know-how in APR yet, we could
> still at least put the skeleton in place and have the Unix side done.
> I think that would be better than adding a WIN32 conditional to
> Subversion, considering that the minimal APR change here is so
Damn! That means I need to think of a complete interface instead of
just one function ;-)
Well, Branko suggested
First, APR already has apr_file_set_perms:
apr_status_t apr_file_perms_set(const char *fname, apr_fileperms_t perms);
and it provides apr_stat to get the perms, so that interface is
complete, and the (possibly buggy!) Unix implementation is
available. I assume a Win32 implementation could be provided.
Now APR doesn't appear to have a boolean type so in keeping with the
rest of APR:
#define APR_FILE_ATTRIBUTE_READONLY 0x01
#define APR_FILE_ATTRIBUTE_EXECUTABLE 0x02
/* Holds or'ed values of APR_FILE_ATTRIBUTE_... */
typedef apr_int32_t apr_fileattributes_t;
apr_status_t apr_file_set_attributes(char const *fname,
apr_status_t apr_file_get_attributes(char const *fname,
These have fairly obvious implementations in terms of
apr_file_perms_set and apr_stat on Unix. I assume a Win32
implementation could be provided.
However, this get/set interface doesn't allow Unix to set readonly
differently for user, group, world and any attempt to make it do so
just reinvents apr_file_perms_set. So what I don't understand is why
Win32 cannot simply do the right thing 'under the hood' of
apr_file_perms_set. This is documented to return APR_INCOMPLETE and
APR_ENOTIMPL if the platform cannot fully comply. It gets 3 sets of
read/write/execute flags, Win32 could ignore or extrapolate from those
as required. If it needs to set an ACL as well as a permission can
apr_file_perms_set not do that? What exactly is the Win32 readonly and
executable interface? Can someone with Win32 knowledge contribute?
Why is more than apr_file_perms_set required?
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Received on Sat Oct 21 14:37:00 2006