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RawSubmissionQueueEntry

Struct RawSubmissionQueueEntry 

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pub struct RawSubmissionQueueEntry(/* private fields */);
Expand description

Miroir exact de struct io_uring_sqe (64 octets). #[repr(transparent)] sur le miroir interne IoUringSqe ⇒ layout bit-pour-bit garanti (asserté statiquement). La zone cmd[] étendue de SETUP_SQE128 (80 o) n’est pas exposée ici : le passthrough URING_CMD passe par la façade typée (Temps 2d).

Rempli via les accesseurs typés (pas de calcul d’offset manuel), puis obtenu par IoUring::raw_get_submission_queue_entry et publié par submit() (Temps 1).

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impl RawSubmissionQueueEntry

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pub fn nop() -> Self

SQE IORING_OP_NOP (entièrement zéro-initialisé). Penser à poser le tag RAW_USER_DATA_TAG sur user_data (§5) avant la soumission.

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pub fn set_opcode(&mut self, opcode: RawOpcode) -> &mut Self

Fixe l’opcode (IORING_OP_*).

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pub fn set_flags(&mut self, flags: u8) -> &mut Self

Fixe les drapeaux IOSQE_* (octet flags).

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pub fn set_fd(&mut self, fd: i32) -> &mut Self

Fixe le fd cible (ou l’index de slot fixe si IOSQE_FIXED_FILE).

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pub fn set_addr(&mut self, addr: u64) -> &mut Self

Fixe addr (union addr/splice_off_in : adresse du buffer principal).

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pub fn set_off(&mut self, off: u64) -> &mut Self

Fixe off/addr2 (union off/addr2/cmd_op selon l’opcode).

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pub fn set_len(&mut self, len: u32) -> &mut Self

Fixe len.

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pub fn set_op_flags(&mut self, op_flags: u32) -> &mut Self

Fixe les flags spécifiques à l’opcode (op_flags : rw_flags, etc.).

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pub fn set_user_data(&mut self, user_data: u64) -> &mut Self

Fixe user_data (doit porter RAW_USER_DATA_TAG pour une op brute, §5).

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pub fn user_data(&self) -> u64

user_data courant (pour vérifier le tag §5).

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pub fn opcode(&self) -> RawOpcode

Opcode courant.

Trait Implementations§

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impl Clone for RawSubmissionQueueEntry

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fn clone(&self) -> RawSubmissionQueueEntry

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for RawSubmissionQueueEntry

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

Formats the value using the given formatter. Read more
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impl Copy for RawSubmissionQueueEntry

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.