Enum AsyncOp 

#[repr(u8)]
pub enum AsyncOp {
    Nop = 0,
    Read = 1,
    Write = 2,
    Open = 3,
    Close = 4,
    Stat = 5,
    IpcSend = 10,
    IpcRecv = 11,
    IpcCall = 12,
    PollAdd = 20,
    PollRemove = 21,
    Timeout = 30,
    TimeoutRemove = 31,
    Accept = 40,
    Connect = 41,
    StorageRead = 50,
    StorageWrite = 51,
    Cancel = 254,
}

Operation opcode submitted through the async ring.

Do not reorder existing variants : the numeric value is part of the userspace ABI and must remain stable.

Variants

Nop = 0

No-op : used for testing and ring probing.

Read = 1

VFS: read from an open file descriptor.

Write = 2

VFS: write to an open file descriptor.

Open = 3

VFS: open a file (async version).

Close = 4

VFS: close a file descriptor.

Stat = 5

VFS: stat / fstat a file.

IpcSend = 10

IPC: send a message to a port (non-blocking).

IpcRecv = 11

IPC: receive a message from a port (non-blocking).

IpcCall = 12

IPC: combined send + recv (reply channel).

PollAdd = 20

Poll: add an fd to the epoll set.

PollRemove = 21

Poll: remove an fd from the epoll set.

Timeout = 30

Timer: arm a timeout completion.

TimeoutRemove = 31

Timer: remove a previously armed timeout.

Accept = 40

Network: accept a connection on a listening socket.

Connect = 41

Network: connect to a remote endpoint.

StorageRead = 50

Storage: read sectors from a block device (AHCI / NVMe).

StorageWrite = 51

Storage: write sectors to a block device.

Cancel = 254

Cancel an in-flight operation by its user_data token.

Trait Implementations

impl Clone for AsyncOp

fn clone(&self) -> AsyncOp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AsyncOp

impl Debug for AsyncOp

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

Formats the value using the given formatter.

impl Eq for AsyncOp

impl PartialEq for AsyncOp

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for AsyncOp