pub struct MessageCodec;Expand description
Zero-size type providing stateless read/write helpers for ClusterMessage.
Wire format: [u32 big-endian byte count][serde_json UTF-8 body]
Implementations§
Source§impl MessageCodec
impl MessageCodec
Sourcepub async fn write<W>(writer: &mut W, msg: &ClusterMessage) -> Result<()>where
W: AsyncWriteExt + Unpin,
pub async fn write<W>(writer: &mut W, msg: &ClusterMessage) -> Result<()>where
W: AsyncWriteExt + Unpin,
Write one ClusterMessage to writer.
The bytes on the wire are:
- 4-byte big-endian unsigned length of the JSON body
- the JSON body (UTF-8)
§Errors
Returns Err if serialization fails or the underlying write fails.
Sourcepub async fn read<R>(reader: &mut R) -> Result<ClusterMessage>where
R: AsyncReadExt + Unpin,
pub async fn read<R>(reader: &mut R) -> Result<ClusterMessage>where
R: AsyncReadExt + Unpin,
Read one ClusterMessage from reader.
Reads the 4-byte length prefix, allocates a buffer of that size, reads the body, then deserialises.
§Errors
Returns Err if the read fails or the body is not valid JSON.
Auto Trait Implementations§
impl Freeze for MessageCodec
impl RefUnwindSafe for MessageCodec
impl Send for MessageCodec
impl Sync for MessageCodec
impl Unpin for MessageCodec
impl UnsafeUnpin for MessageCodec
impl UnwindSafe for MessageCodec
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