Andrew –
There is a standard call that provides this service, but I am porting over BSD
utils to the shell and they just take a straight path and call open. So I want
open to behave the way I expect it to. IN fact, the low level code separates
out the “drive” from the path already, but the current library doesn’t add in
the mappings into the list that gets created (it is used for stdin: stdout: and
stderr:) The thing is that the underlying Shell APIs do handle this case, but
the mapping is stripped before it gets to that layer.
Tim
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Andrew Fish via
Groups.Io
Sent: Wednesday, September 4, 2019 5:35 PM
To: devel@edk2.groups.io; tim.le...@insyde.com
Subject: Re: [edk2-devel] Mappings and StdLib
Tim,
I don't know about the plans with the StdLib, but I do remember a long time ago
with the old shell there was a protocol that let you translate volume names
(mappings) into handles and device paths.
So you could write a simple library that has 2 styles of APIs:
1) Handle + FilePath in Shell mapping with Volume Name out
2) Shell file path with mapping Volume names in and Simple File System handle
Out with the file path
a) A device path out version of this is also useful
You can make the lib just error return if the Shell protocol does not exist so
you don't make it a requirement. The caller handles that failure as the current
working volume/directory case.
Thanks,
Andrew Fish
On Sep 4, 2019, at 5:14 PM, Tim Lewis <tim.le...@insyde.com
<mailto:tim.le...@insyde.com> > wrote:
Following up on my last e-mail, I guess I had the wrong assumption: there
doesn’t appear to be a way to resolve mappings within StdLib.
Are there any plans here?
Thanks,
Tim
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