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BackendMessage

sentinel_driver::protocol::backend

Enum BackendMessage

pub enum BackendMessage {
Show 26 variants    AuthenticationOk,
    AuthenticationCleartextPassword,
    AuthenticationMd5Password {
        salt: [u8; 4],
    },
    AuthenticationSasl {
        mechanisms: Vec<String>,
    },
    AuthenticationSaslContinue {
        data: Vec<u8>,
    },
    AuthenticationSaslFinal {
        data: Vec<u8>,
    },
    BackendKeyData {
        process_id: i32,
        secret_key: i32,
    },
    ParameterStatus {
        name: String,
        value: String,
    },
    ReadyForQuery {
        transaction_status: TransactionStatus,
    },
    RowDescription {
        fields: Vec<FieldDescription>,
    },
    DataRow {
        columns: DataRowColumns,
    },
    CommandComplete {
        tag: String,
    },
    EmptyQueryResponse,
    ErrorResponse {
        fields: ErrorFields,
    },
    NoticeResponse {
        fields: ErrorFields,
    },
    ParseComplete,
    BindComplete,
    CloseComplete,
    NoData,
    PortalSuspended,
    ParameterDescription {
        oids: Vec<u32>,
    },
    CopyInResponse {
        format: CopyFormat,
        column_formats: Vec<i16>,
    },
    CopyOutResponse {
        format: CopyFormat,
        column_formats: Vec<i16>,
    },
    CopyData {
        data: Bytes,
    },
    CopyDone,
    NotificationResponse {
        process_id: i32,
        channel: String,
        payload: String,
    },
}

Expand description

A decoded backend (server → client) message.

Variants§

AuthenticationOk

AuthenticationCleartextPassword

AuthenticationMd5Password

Fields

§salt: [u8; 4]

AuthenticationSasl

Fields

§mechanisms: Vec<String>

AuthenticationSaslContinue

Fields

§data: Vec<u8>

AuthenticationSaslFinal

Fields

§data: Vec<u8>

BackendKeyData

Fields

§process_id: i32

§secret_key: i32

ParameterStatus

Fields

§name: String

§value: String

ReadyForQuery

Fields

§transaction_status: TransactionStatus

RowDescription

Fields

§fields: Vec<FieldDescription>

DataRow

Fields

§columns: DataRowColumns

CommandComplete

Fields

§tag: String

EmptyQueryResponse

ErrorResponse

Fields

§fields: ErrorFields

NoticeResponse

Fields

§fields: ErrorFields

ParseComplete

BindComplete

CloseComplete

NoData

PortalSuspended

ParameterDescription

Fields

§oids: Vec<u32>

CopyInResponse

Fields

§format: CopyFormat

§column_formats: Vec<i16>

CopyOutResponse

Fields

§format: CopyFormat

§column_formats: Vec<i16>

CopyData

Fields

§data: Bytes

CopyDone

NotificationResponse

Fields

§process_id: i32

§channel: String

§payload: String

Trait Implementations§

impl Debug for BackendMessage

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl !Freeze for BackendMessage

impl RefUnwindSafe for BackendMessage

impl Send for BackendMessage

impl Sync for BackendMessage

impl Unpin for BackendMessage

impl UnsafeUnpin for BackendMessage

impl UnwindSafe for BackendMessage

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> Same for T

type Output = T

Should always be Self

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more