Struct solicit::http::frame::headers::StreamDependency
[−]
[src]
pub struct StreamDependency {
pub stream_id: StreamId,
pub weight: u8,
pub is_exclusive: bool,
}The struct represents the dependency information that can be attached to a stream and sent within a HEADERS frame (one with the Priority flag set).
Fields
stream_id | The ID of the stream that a particular stream depends on |
weight | The weight for the stream. The value exposed (and set) here is always
in the range [0, 255], instead of [1, 256] (as defined in section 5.3.2.)
so that the value fits into a |
is_exclusive | A flag indicating whether the stream dependency is exclusive. |
Methods
impl StreamDependency
fn new(stream_id: StreamId, weight: u8, is_exclusive: bool) -> StreamDependency
Creates a new StreamDependency with the given stream ID, weight, and
exclusivity.
fn parse(buf: &[u8]) -> StreamDependency
Parses the first 5 bytes in the buffer as a StreamDependency.
(Each 5-byte sequence is always decodable into a stream dependency
structure).
Panics
If the given buffer has less than 5 elements, the method will panic.
fn serialize(&self) -> [u8; 5]
Serializes the StreamDependency into a 5-byte buffer representing the
dependency description, as described in section 6.2. of the HTTP/2
spec:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-------------+-----------------------------------------------+
|E| Stream Dependency (31) |
+-+-------------+-----------------------------------------------+
| Weight (8) |
+-+-------------+-----------------------------------------------+
Where "E" is set if the dependency is exclusive.