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https://github.com/fluencelabs/rust-libp2p
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f5e644da8f
This PR implements `Transport` for WebRTC for browsers by using web-sys. Only the `webrtc-direct` spec is implemented. The `webrtc` spec for connecting two browsers with each other is left to a future PR. Related: https://github.com/libp2p/specs/issues/475. Related #2617. Supersedes: #4229. Pull-Request: #4248. Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
41 lines
1.8 KiB
Rust
41 lines
1.8 KiB
Rust
// Copyright 2022 Parity Technologies (UK) Ltd.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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use asynchronous_codec::Framed;
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use futures::{AsyncRead, AsyncWrite};
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use crate::proto::Message;
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use crate::stream::{MAX_DATA_LEN, MAX_MSG_LEN, VARINT_LEN};
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pub(crate) type FramedDc<T> = Framed<T, quick_protobuf_codec::Codec<Message>>;
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pub(crate) fn new<T>(inner: T) -> FramedDc<T>
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where
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T: AsyncRead + AsyncWrite,
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{
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let mut framed = Framed::new(
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inner,
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quick_protobuf_codec::Codec::new(MAX_MSG_LEN - VARINT_LEN),
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);
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// If not set, `Framed` buffers up to 131kB of data before sending, which leads to "outbound
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// packet larger than maximum message size" error in webrtc-rs.
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framed.set_send_high_water_mark(MAX_DATA_LEN);
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framed
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}
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