package obus

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Message serialization/deserialization

exception Data_error of string

exception Protocol_error of string

val read_message : Lwt_io.input_channel -> OBus_message.t Lwt.t

read_message ic deserializes a message from a channel. It fails if the message contains file descriptors.

val write_message : 
  Lwt_io.output_channel ->
  ?byte_order:Lwt_io.byte_order ->
  OBus_message.t ->
  unit Lwt.t

write_message oc ?byte_order message serializes a message to a channel. It fails if the message contains file descriptors.

val message_of_string : string -> Unix.file_descr array -> OBus_message.t

message_of_string buf fds returns a message from a string. fds is used to resolv file descriptors the message may contains.

val string_of_message : 
  ?byte_order:Lwt_io.byte_order ->
  OBus_message.t ->
  string * Unix.file_descr array

Marshal a message into a string. Returns also the list of file descriptors that must be sent with the message.

type reader

A reader which support unix fd passing

val reader : Lwt_unix.file_descr -> reader

reader unix_socket creates a reader from a unix socket

val read_message_with_fds : reader -> OBus_message.t Lwt.t

Read a message with its file descriptors from the given reader

val close_reader : reader -> unit Lwt.t

close_reader reader closes the given reader.

Note: this does not close the underlying file descriptor.

type writer

A writer which support unix fd passing

val writer : Lwt_unix.file_descr -> writer

writer unix_socket creates a writer from a unix socket

val write_message_with_fds : 
  writer ->
  ?byte_order:Lwt_io.byte_order ->
  OBus_message.t ->
  unit Lwt.t

Write a message with its file descriptors on the given writer

val close_writer : writer -> unit Lwt.t

close_writer writer closes the given writer.

Note: this does not close the underlying file descriptor.