# Module Ocsigen_http_com

    module Ocsigen_http_com: sig .. end

Sending and receiving HTTP frames

    exception Connection_closed

The other side has cleanly closed the connection after a message

    exception Lost_connection of exn

The connection has been unexpectedly broken

    exception Timeout

No activity on the other side

    exception Keepalive_timeout

    exception Aborted

Connection killed

    type mode =

`|` | `Answer`
`|` | `Query`
`|` | `Nofirstline`

    type connection

    val create_receiver : int -> mode -> Lwt_ssl.socket -> connection

    val lock_receiver : connection -> unit Lwt.t

    val unlock_receiver : connection -> unit

    val wakeup_next_request : connection -> unit

    val block_next_request : connection -> unit Lwt.t

    val get_http_frame : ?head:bool -> connection -> Ocsigen_http_frame.t Lwt.t

    val connection_id : connection -> int

    val connection_fd : connection -> Lwt_ssl.socket

    val closed : connection -> unit Lwt.t

`closed conn` is a thread waking up when the connection is closed

    type slot

    val start_processing : connection -> (slot -> unit Lwt.t) -> unit

    val wait_all_senders : connection -> unit Lwt.t

    val write_stream : ?chunked:bool ->
           Lwt_chan.out_channel -> string Ocsigen_stream.t -> unit Lwt.t

This function may return any I/O error from the channel, or a interrupted stream exception.

    type sender_type

    val create_sender : ?server_name:string ->
           ?headers:Http_headers.t ->
           ?proto:Ocsigen_http_frame.Http_header.proto ->
           unit -> sender_type

    val default_sender : sender_type

Sender with only the server name, and HTTP/1.1

    val send : ?reopen:(unit -> unit Lwt.t) ->
           slot ->
           clientproto:Ocsigen_http_frame.Http_header.proto ->
           ?mode:Ocsigen_http_frame.Http_header.http_mode ->
           ?proto:Ocsigen_http_frame.Http_header.proto ->
           ?keep_alive:bool ->
           head:bool ->
           sender:sender_type ->
           Ocsigen_http_frame.result -> unit Lwt.t

send an HTTP message. `send` may also fail with `Interrupted_stream` exception if the input stream is interrupted.

    val abort : connection -> unit

    val set_result_observer : (Ocsigen_http_frame.Http_header.http_header -> string -> unit Lwt.t) -> unit

Use this function to make an action just before sending the result (for example observe the headers that will be sent). The parameter is a function taking the set of headers twice, first as `Ocsigen_http_frame.Http_headers.http_header`, second as a `string`.