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os/os2: recursive directory walker, expose errors in read_directory, file clone

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Adds a directory walker, a method of exposing and retrieving errors from
the existing read directory iterator, allows reusing of the existing
read directory iterator, and adds a file clone procedure
This commit is contained in:
Laytan Laats
2025-02-24 20:40:44 +01:00
parent d0d5cf800e
commit 0e4140a602
14 changed files with 687 additions and 88 deletions
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core/os/os2/file_wasi.odin
+26
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@@ -223,6 +223,32 @@ _new_file :: proc(handle: uintptr, name: string, allocator: runtime.Allocator) -
return &impl.file, nil
}
_clone :: proc(f: ^File) -> (clone: ^File, err: Error) {
if f == nil || f.impl == nil {
return
}
dir_fd, relative, ok := match_preopen(name(f))
if !ok {
return nil, .Invalid_Path
}
fd, fderr := wasi.path_open(dir_fd, {.SYMLINK_FOLLOW}, relative, {}, {}, {}, {})
if fderr != nil {
err = _get_platform_error(fderr)
return
}
defer if err != nil { wasi.fd_close(fd) }
fderr = wasi.fd_renumber((^File_Impl)(f.impl).fd, fd)
if fderr != nil {
err = _get_platform_error(fderr)
return
}
return _new_file(uintptr(fd), name(f), file_allocator())
}
_close :: proc(f: ^File_Impl) -> (err: Error) {
if errno := wasi.fd_close(f.fd); errno != nil {
err = _get_platform_error(errno)