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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.
*/
import Foundation
public protocol TTransport {
// Required
func read(size: Int) throws -> Data
func write(data: Data) throws
func flush() throws
// Optional (default provided)
func readAll(size: Int) throws -> Data
func isOpen() throws -> Bool
func open() throws
func close() throws
}
public extension TTransport {
func isOpen() throws -> Bool { return true }
func open() throws { }
func close() throws { }
func readAll(size: Int) throws -> Data {
var buff = Data()
var have = 0
while have < size {
let chunk = try self.read(size: size - have)
have += chunk.count
buff.append(chunk)
if chunk.count == 0 {
throw TTransportError(error: .endOfFile)
}
}
return buff
}
}
public protocol TAsyncTransport : TTransport {
// Factory
func flush(_ completion: @escaping (TAsyncTransport, Error?) ->())
}
public protocol TAsyncTransportFactory {
associatedtype Transport : TAsyncTransport
func newTransport() -> Transport
}
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