This forces all syscall functions, notably filesystem, to return numeric
codes as opposed to mapping in two different areas. The result of this
change is better consolidation in call sites of `sysfs.FS`, while
further refactoring is needed to address consolidation of file errors.
Signed-off-by: Adrian Cole <adrian@tetrate.io>
This forces all syscall functions, notably filesystem, to return numeric
codes as opposed to mapping in two different areas. The result of this
change is better consolidation in call sites of `sysfs.FS`, while
further refactoring is needed to address consolidation of file errors.
Signed-off-by: Adrian Cole <adrian@tetrate.io>
This handles EOF even if current and possibly future wasi don't have a
way to propagate an EOF signal. This is mainly to match up with go
semantics and ensure we don't have any error conditions (by adding
tests).
Signed-off-by: Adrian Cole <adrian@tetrate.io>
This centralizes filestat logic by making our own `Stat_t` similar to
`syscall.Stat_t`. This exposes utilities in the platform package and
adds a new function `FS.Stat` which avoids having to use `fs.File` to
get the same info. Doing so at the FS abstraction allows us to optimize
how it is implemented internally using portable means (e.g.
`os.StatFile`) or OS-specific means where necessary, e.g. in windows.
This also ensures `platform.OpenFile` returns syscall.Errno and
centralizes error checking with a new `require.EqualErrno` test.
Signed-off-by: Adrian Cole <adrian@tetrate.io>
This adds `FS.Chmod` and implements it for `GOOS=js`. This function
isn't defined in WASI snapshot01, but it is in `wasi-filesystem`, e.g.
`change-file-permissions-at`.
Signed-off-by: Adrian Cole <adrian@tetrate.io>
