byte-stream.h (1878B)
1 // Copyright (c) 2019 Cloudflare, Inc. and contributors 2 // Licensed under the MIT License: 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a copy 5 // of this software and associated documentation files (the "Software"), to deal 6 // in the Software without restriction, including without limitation the rights 7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 // copies of the Software, and to permit persons to whom the Software is 9 // furnished to do so, subject to the following conditions: 10 // 11 // The above copyright notice and this permission notice shall be included in 12 // all copies or substantial portions of the Software. 13 // 14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 20 // THE SOFTWARE. 21 22 #pragma once 23 // Bridges from KJ streams to Cap'n Proto ByteStream RPC protocol. 24 25 #include <capnp/compat/byte-stream.capnp.h> 26 #include <kj/async-io.h> 27 28 namespace capnp { 29 30 class ByteStreamFactory { 31 // In order to allow path-shortening through KJ, a common factory must be used for converting 32 // between RPC ByteStreams and KJ streams. 33 34 public: 35 capnp::ByteStream::Client kjToCapnp(kj::Own<kj::AsyncOutputStream> kjStream); 36 kj::Own<kj::AsyncOutputStream> capnpToKj(capnp::ByteStream::Client capnpStream); 37 38 private: 39 CapabilityServerSet<capnp::ByteStream> streamSet; 40 41 class StreamServerBase; 42 class SubstreamImpl; 43 class CapnpToKjStreamAdapter; 44 class KjToCapnpStreamAdapter; 45 }; 46 47 } // namespace capnp