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use alloc::Allocator;
use util;
pub const MAX_NUM_STREAM: usize = 16;
pub const STREAM_ID_MASK: StreamID = 0xf;
pub type StreamID = u8;
pub struct ReadableBytes<'a> {
pub data: &'a [u8],
pub read_offset: &'a mut usize,
}
impl<'a> ReadableBytes<'a> {
#[inline(always)]
pub fn bytes_avail(&self) -> usize {
self.data.len() - *self.read_offset
}
}
pub struct WritableBytes<'a> {
pub data: &'a mut [u8],
pub write_offset: &'a mut usize,
}
pub trait StreamMuxer<AllocU8: Allocator<u8>> {
#[inline(always)]
fn write(&mut self, stream_id: StreamID, data: &[u8], alloc_u8: &mut AllocU8) -> usize;
#[inline(always)]
fn write_buffer(&mut self, stream_id: StreamID, alloc_u8: &mut AllocU8) -> WritableBytes;
#[inline(always)]
fn can_serialize() -> bool {
true
}
#[inline(always)]
fn serialize(&mut self, output: &mut [u8]) -> usize;
#[inline(always)]
fn flush(&mut self, output: &mut [u8]) -> usize;
#[inline(always)]
fn wrote_eof(&self) -> bool;
#[inline(always)]
fn free(&mut self, alloc_u8: &mut AllocU8);
#[inline(always)]
fn n_stream(&self) -> usize;
}
pub trait StreamDemuxer<AllocU8: Allocator<u8>> {
#[inline(always)]
fn deserialize(&mut self, data: &[u8], alloc_u8: &mut AllocU8) -> usize;
#[inline(always)]
fn read_buffer(&mut self, stream_id: StreamID) -> ReadableBytes;
#[inline(always)]
fn data_len(&self, stream_id: StreamID) -> usize;
#[inline(always)]
fn data(&self, stream_id: StreamID) -> &[u8];
#[inline(always)]
fn editable_data(
&mut self,
stream_id: StreamID,
) -> &mut util::AllocatedMemoryRange<u8, AllocU8>;
#[inline(always)]
fn consume_data(&mut self, stream_id: StreamID, count: usize);
#[inline(always)]
fn consumed_all_streams_until_eof(&self) -> bool;
#[inline(always)]
fn encountered_eof(&self) -> bool;
#[inline(always)]
fn free(&mut self, alloc_u8: &mut AllocU8);
#[inline(always)]
fn n_stream(&self) -> usize;
}