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// Licensed to the Apache Software Foundation (ASF) under one // or more contributor license agreements. See the NOTICE file // distributed with this work for additional information // regarding copyright ownership. The ASF licenses this file // to you under the Apache License, Version 2.0 (the // "License"); you may not use this file except in compliance // with the License. You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, // software distributed under the License is distributed on an // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY // KIND, either express or implied. See the License for the // specific language governing permissions and limitations // under the License. //! Types required to send and receive bytes over an I/O channel. //! //! The core type exposed here is a `TTransport`, which can by used by a //! `TProtocol`. While `TProtocol` exposes a typed interface for communicating //! primitives, `TTransport` only deals with bytes. //! //! Specific implementations include: //! * `TBufferedTransport`: wraps an underlying transport with a buffer, //! reducing the number of I/O operations //! * `TFramedTransport`: wraps an underlying transport and prefixes outgoing //! messages with a message-framing header //! * `TTcpTransport`: sends messages over a TCP socket use std::cell::RefCell; use std::io; use std::rc::Rc; mod buffered; mod framed; mod passthru; mod socket; #[cfg(test)] pub mod mem; pub use self::buffered::{TBufferedTransport, TBufferedTransportFactory}; pub use self::framed::{TFramedTransport, TFramedTransportFactory}; pub use self::passthru::TPassThruTransport; pub use self::socket::TTcpTransport; /// Marker trait identifying a channel that can be used to send/receive bytes. pub trait TTransport: io::Read + io::Write { } impl <I: io::Read + io::Write> TTransport for I { } /// Helper type required by a `TSimpleServer` to create `TTransport` /// instances with which to communicate with accepted client connections. pub trait TTransportFactory { /// Construct a `TTransport` that wraps an `inner` transport, creating /// a transport stack. fn create(&self, inner: Rc<RefCell<Box<TTransport>>>) -> Box<TTransport>; }