Module `Proto.Topen`

Topen prepares a fid for I/O with the provided options.

type t

val size : t -> int: The size of this message in bytes. It is identical to the length of the underlying I/O vector but is also encoded in the first 4 bytes of the message.

val code : int: The op code for this message.

val tag : t -> Tag.t: An identifier for this transaction. All in-flight requests on a given connection must have unique tags.

val of_iovec : Iovec.t -> t: of_iovec verifies a message from an I/O vector. No copying is done, and of_iovec only performs bounds checks. Modifying the underlying I/O vector will change the results when accessing message fields.

val fid : t -> Fid.t: fid references the file to be opened. After the open transaction, I/O may be sent to fid.

val flags : t -> Styx__.Types.Flag.t: flags determines the type of I/O to allow on fid; see Flag for details.

val write : Iovec.t -> tag:Tag.t -> fid:Fid.t -> flags:Styx__.Types.Flag.t -> int