Scheme Request for Implementation 199,
"POSIX errno manipulation,"
by Harold Ancell,
has gone into WITHDRAWN status.
The document and an archive of the discussion are available at <
https://srfi.schemers.org/srfi-199/>.
As thoroughly discussed on the mailing list, a simple Scheme level API
like the one proposed is unsatisfactory because a Scheme
implementation can run arbitrary code that might set errno between any
of 1) manually setting it, 2) a POSIX call possibly setting it, and 3)
retrieving its value. This, along with EINTR loops (see the Worse is
Better essay) need to be done at a low level, and no one has been able
to come up with a suitable standard and universal high level API for
any of this.
Regards,
SRFI Editor
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