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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
import CoreFoundation
#if !swift(>=4.2)
// Swift 3/4 compatibility
fileprivate extension RunLoopMode {
static let `default` = defaultRunLoopMode
}
#endif
#if os(Linux)
/// Currently unavailable in Linux
/// Remove comments and build to fix
/// Currently kConstants for CFSockets don't exist in linux and not all have been moved
/// to property structs yet
#else
// Must inherit NSObject for NSStreamDelegate conformance
public class TStreamTransport : NSObject, TTransport {
public var input: InputStream? = nil
public var output: OutputStream? = nil
public init(inputStream: InputStream?, outputStream: OutputStream?) {
input = inputStream
output = outputStream
}
public convenience init(inputStream: InputStream?) {
self.init(inputStream: inputStream, outputStream: nil)
}
public convenience init(outputStream: OutputStream?) {
self.init(inputStream: nil, outputStream: outputStream)
}
deinit {
close()
}
public func readAll(size: Int) throws -> Data {
guard let input = input else {
throw TTransportError(error: .unknown)
}
var read = Data()
while read.count < size {
var buffer = Array<UInt8>(repeating: 0, count: size - read.count)
let bytesRead = buffer.withUnsafeMutableBufferPointer { bufferPtr in
return input.read(bufferPtr.baseAddress!, maxLength: size - read.count)
}
if bytesRead <= 0 {
throw TTransportError(error: .notOpen)
}
read.append(Data(buffer))
}
return read
}
public func read(size: Int) throws -> Data {
guard let input = input else {
throw TTransportError(error: .unknown)
}
var read = Data()
while read.count < size {
var buffer = Array<UInt8>(repeating: 0, count: size - read.count)
let bytesRead = buffer.withUnsafeMutableBufferPointer {
input.read($0.baseAddress!, maxLength: size - read.count)
}
if bytesRead <= 0 {
break
}
read.append(Data(buffer))
}
return read
}
public func write(data: Data) throws {
guard let output = output else {
throw TTransportError(error: .unknown)
}
var bytesWritten = 0
while bytesWritten < data.count {
bytesWritten = data.withUnsafeBytes {
return output.write($0, maxLength: data.count)
}
if bytesWritten == -1 {
throw TTransportError(error: .notOpen)
} else if bytesWritten == 0 {
throw TTransportError(error: .endOfFile)
}
}
}
public func flush() throws {
return
}
public func close() {
if input != nil {
// Close and reset inputstream
if let cf: CFReadStream = input {
CFReadStreamSetProperty(cf, .shouldCloseNativeSocket, kCFBooleanTrue)
}
input?.delegate = nil
input?.close()
input?.remove(from: .current, forMode: .default)
input = nil
}
if output != nil {
// Close and reset output stream
if let cf: CFWriteStream = output {
CFWriteStreamSetProperty(cf, .shouldCloseNativeSocket, kCFBooleanTrue)
}
output?.delegate = nil
output?.close()
output?.remove(from: .current, forMode: .default)
output = nil
}
}
}
#endif
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