Enum FsPerms 

pub enum FsPerms {
    ReadOnly,
    ReadWrite,
}

Permission bits for operating on filesystem, specified per preopen, as enforced by wasmtime-wasi.

Filesystems can deny all mutation operations (read-only) or permit mutations (read-write).

Read-only permissions allow reading the contents of any file or directory reachable under the preopen, as well as reading any file metadata. Changing, appending, or truncating files is not permitted. Creating or deleting files, directories, symbolic links, and hard links are not permitted.

Read-write permissions include changing the contents of any reachable file, creating and deleting files, directories, symbolic links, and creating hard links, as well as mutating any file metadata.

These permissions are enforced by wasmtime-wasi. The host filesystem may enforce additional restrictions not covered by these.

Variants

ReadOnly

ReadWrite

Implementations

impl FsPerms

pub fn write_not_permitted(&self) -> bool

Tests whether writes are not permitted, returning a boolean. Shorthand for matches!(perms, FsPerms::ReadOnly), used frequently in if-statements.

Trait Implementations

impl Clone for FsPerms

fn clone(&self) -> FsPerms

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FsPerms

impl Debug for FsPerms

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for FsPerms

impl PartialEq for FsPerms

fn eq(&self, other: &FsPerms) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for FsPerms