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// SPDX-License-Identifier: MPL-2.0
// (c) Hare authors <https://harelang.org>
use rt;
// Wraps an [[rt::errno]] to produce an [[error]], which may be [[opaque_]].
// This is a non-portable interface which is mainly provided to support internal
// stdlib requirements.
export fn errno(errno: rt::errno) error = {
switch (errno) {
case rt::ECONNREFUSED =>
return refused;
case rt::ECANCELED =>
return cancelled;
case rt::EOVERFLOW =>
return overflow;
case rt::EACCES =>
return noaccess;
case rt::EINVAL =>
return invalid;
case rt::EEXIST =>
return exists;
case rt::ENOENT =>
return noentry;
case rt::ETIMEDOUT =>
return timeout;
case rt::EBUSY =>
return busy;
case rt::EINTR =>
return interrupted;
case rt::EAGAIN =>
return again;
case rt::ENETUNREACH =>
return netunreachable;
case => void;
};
static assert(size(rt::errno) <= size(opaque_data));
let err = opaque_ { strerror = &rt_strerror, ... };
let ptr = &err.data: *rt::errno;
*ptr = errno;
return err;
};
fn rt_strerror(err: *opaque_data) const str = {
let err = err: *rt::errno;
return rt::strerror(*err);
};
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