Module frame 

Binary framing for all vsock communication.

Frame format: [u32 BE length][u8 type][payload...] Length = size of type byte + payload (excludes the 4-byte length prefix). Max frame size: 1 MB.

Constants

ATTEST_REQ

ATTEST_RESP

CHMOD_REQ

COPY_REQ

DISCARD_REQ

DISCARD_RESP

DOWNLOAD_PROGRESS

DOWNLOAD_REQ

ERROR

EXEC_REQ

EXIT

FS_OK_RESP

FWD_REQ

FWD_RESP

KILL

MKDIR_REQ

MOUNT_REQ

MOUNT_RESP

READ_DIR_REQ

READ_DIR_RESP

READ_FILE_REQ

READ_FILE_RESP

REMOVE_REQ

RENAME_REQ

RESIZE

STAT_REQ

STAT_RESP

STDERR

STDIN

STDOUT

WATCH_EVENT

WATCH_REQ

WRITE_FILE_DATA

WRITE_FILE_REQ

WRITE_FILE_RESP

Functions

exit_payload

Build an EXIT payload: [i32 BE code].

parse_exit_code

Parse an EXIT payload into an i32 exit code.

parse_resize

Parse a RESIZE payload into (rows, cols).

read_frame

Read a binary frame. Returns None on clean EOF, Err on protocol violations or I/O errors.

resize_payload

Build a RESIZE payload: [u16 BE rows][u16 BE cols].

send_json

Serialize msg as JSON and send it as a typed frame.

try_parse

Try to parse a complete frame from the front of buf. Returns Some((msg_type, payload_start, total_len)) if a full frame is available, None if more data is needed.

write_frame

Write a binary frame: [u32 BE length][u8 type][payload].