Struct OpenRequest 

#[repr(C, packed(1))]
pub struct OpenRequest {
    pub flags: u32,
    pub path_len: u16,
}

Open request.

Wire layout: flags @ 0..4, path_len @ 4..6, path_data @ 6...

Wire-compatibility note

Unlike most variable-length fields, the open path is prefixed by a raw u16 length : not an InlineBlobHeader (there is no kind field). This historical layout is kept because every existing client (kernel VFS, net and bus schemes) encodes it this way. Earlier versions of this documentation wrongly claimed an InlineBlobHeader at 4..8; that wire format never existed.

Fields

flags: u32

Open flags (O_RDONLY, O_WRONLY, O_RDWR, O_CREAT, etc.).

path_len: u16

Length in bytes of the UTF-8 path starting at offset 6.

Implementations

impl OpenRequest

pub const PATH_OFFSET: usize = 6

Byte offset at which the inline path starts.

NOTE: this struct is packed(1) so its size matches the wire prefix exactly (no tail padding). Never take references to its fields; read them by copy or use OpenRequest::parse, which decodes straight from the payload bytes.

pub fn parse(payload: &[u8]) -> Option<(u32, &str)>

Parse a full OPEN request payload: fixed prefix + inline path.

Returns (flags, path), or None when:

• the fixed prefix is truncated,
• path_len exceeds the remaining payload,
• the path bytes are not valid UTF-8.

pub fn encode(msg_type: u32, flags: u32, path: &str) -> Option<IpcMessage>

Encode an OPEN request into a fresh IpcMessage. Returns None if the path does not fit the inline capacity.

Trait Implementations

impl Clone for OpenRequest

fn clone(&self) -> OpenRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OpenRequest

impl Debug for OpenRequest

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

Formats the value using the given formatter.