Struct MsgHead 

pub struct MsgHead {
    pub msg_id: Option<u64>,
    pub create_time: Option<u64>,
    pub modify_time: Option<u64>,
    pub msg_sequence: Option<u64>,
    pub inner_sequence: Option<u64>,
    pub status: Option<u32>,
}

以下为抽象的公共消息定义 消息头 + body

Fields

msg_id: Option<u64>

消息ID

create_time: Option<u64>

消息创建时间

modify_time: Option<u64>

消息修改时间

msg_sequence: Option<u64>

业务序列号，业务保证有序

inner_sequence: Option<u64>

内部序列号，保证唯一

status: Option<u32>

消息状态标志, 后续扩展, 已读标记/增量删除/已撤回等状态信息

Implementations

impl MsgHead

pub fn msg_id(&self) -> u64

Returns the value of msg_id, or the default value if msg_id is unset.

pub fn create_time(&self) -> u64

Returns the value of create_time, or the default value if create_time is unset.

pub fn modify_time(&self) -> u64

Returns the value of modify_time, or the default value if modify_time is unset.

pub fn msg_sequence(&self) -> u64

Returns the value of msg_sequence, or the default value if msg_sequence is unset.

pub fn inner_sequence(&self) -> u64

Returns the value of inner_sequence, or the default value if inner_sequence is unset.

pub fn status(&self) -> u32

Returns the value of status, or the default value if status is unset.

Trait Implementations

impl Clone for MsgHead

fn clone(&self) -> MsgHead

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MsgHead

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

Formats the value using the given formatter.

impl Default for MsgHead

fn default() -> Self

Returns the “default value” for a type.

impl Hash for MsgHead

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for MsgHead

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for MsgHead

fn eq(&self, other: &MsgHead) -> 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 Copy for MsgHead

impl Eq for MsgHead

impl StructuralPartialEq for MsgHead