72 lines
3.1 KiB
Standard ML
72 lines
3.1 KiB
Standard ML
(*----------------------------------------------------------------------------
|
|
* Copyright (c) 2019 António Nuno Monteiro
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its
|
|
* contributors may be used to endorse or promote products derived from this
|
|
* software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*---------------------------------------------------------------------------*)
|
|
|
|
open Util
|
|
|
|
type t = int
|
|
|
|
(* From RFC7540§6.2:
|
|
* Flags that have no defined semantics for a particular frame type MUST be
|
|
* ignored and MUST be left unset (0x0) when sending. *)
|
|
let default_flags = 0x0
|
|
|
|
(* From RFC7540§6.2:
|
|
* END_STREAM (0x1): When set, bit 0 indicates that the header block (Section
|
|
* 4.3) is the last that the endpoint will send for the identified stream. *)
|
|
let test_end_stream x = test_bit x 0
|
|
let set_end_stream x = set_bit x 0
|
|
let clear_end_stream x = clear_bit x 0
|
|
|
|
(* From RFC7540§6.7:
|
|
* ACK (0x1): When set, bit 0 indicates that this PING frame is a PING
|
|
* response. *)
|
|
let test_ack x = test_bit x 0
|
|
let set_ack x = set_bit x 0
|
|
|
|
(* From RFC7540§6.2:
|
|
* END_HEADERS (0x4): When set, bit 2 indicates that this frame contains an
|
|
* entire header block (Section 4.3) and is not followed by any CONTINUATION
|
|
* frames. *)
|
|
let test_end_header x = test_bit x 2
|
|
let set_end_header x = set_bit x 2
|
|
|
|
(* From RFC7540§6.2:
|
|
* PADDED (0x8): When set, bit 3 indicates that the Pad Length field and any
|
|
* padding that it describes are present. *)
|
|
let test_padded x = test_bit x 3
|
|
let set_padded x = set_bit x 3
|
|
|
|
(* From RFC7540§6.2:
|
|
* PRIORITY (0x20): When set, bit 5 indicates that the Exclusive Flag (E),
|
|
* Stream Dependency, and Weight fields are present; see Section 5.3. *)
|
|
let test_priority x = test_bit x 5
|
|
let set_priority x = set_bit x 5
|