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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2019-2021 Apple Inc. and the SwiftNIO project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import NIOCore
struct SelectableFileHandle {
var handle: NIOFileHandle
var isOpen: Bool {
return handle.isOpen
}
init(_ handle: NIOFileHandle) {
self.handle = handle
}
func close() throws {
try handle.close()
}
}
extension SelectableFileHandle: Selectable {
func withUnsafeHandle<T>(_ body: (CInt) throws -> T) throws -> T {
return try self.handle.withUnsafeFileDescriptor(body)
}
}
final class PipePair: SocketProtocol {
typealias SelectableType = SelectableFileHandle
let inputFD: SelectableFileHandle?
let outputFD: SelectableFileHandle?
init(inputFD: NIOFileHandle?, outputFD: NIOFileHandle?) throws {
self.inputFD = inputFD.flatMap { SelectableFileHandle($0) }
self.outputFD = outputFD.flatMap { SelectableFileHandle($0) }
try self.ignoreSIGPIPE()
for fileHandle in [inputFD, outputFD].compactMap({ $0 }) {
try fileHandle.withUnsafeFileDescriptor {
try NIOFileHandle.setNonBlocking(fileDescriptor: $0)
}
}
}
func ignoreSIGPIPE() throws {
for fileHandle in [self.inputFD, self.outputFD].compactMap({ $0 }) {
try fileHandle.withUnsafeHandle {
try PipePair.ignoreSIGPIPE(descriptor: $0)
}
}
}
var description: String {
return "PipePair { in=\(String(describing: inputFD)), out=\(String(describing: inputFD)) }"
}
func connect(to address: SocketAddress) throws -> Bool {
throw ChannelError.operationUnsupported
}
func finishConnect() throws {
throw ChannelError.operationUnsupported
}
func write(pointer: UnsafeRawBufferPointer) throws -> IOResult<Int> {
guard let outputFD = self.outputFD else {
fatalError("Internal inconsistency inside NIO. Please file a bug")
}
return try outputFD.withUnsafeHandle {
try Posix.write(descriptor: $0, pointer: pointer.baseAddress!, size: pointer.count)
}
}
func writev(iovecs: UnsafeBufferPointer<IOVector>) throws -> IOResult<Int> {
guard let outputFD = self.outputFD else {
fatalError("Internal inconsistency inside NIO. Please file a bug")
}
return try outputFD.withUnsafeHandle {
try Posix.writev(descriptor: $0, iovecs: iovecs)
}
}
func read(pointer: UnsafeMutableRawBufferPointer) throws -> IOResult<Int> {
guard let inputFD = self.inputFD else {
fatalError("Internal inconsistency inside NIO. Please file a bug")
}
return try inputFD.withUnsafeHandle {
try Posix.read(descriptor: $0, pointer: pointer.baseAddress!, size: pointer.count)
}
}
func recvmsg(pointer: UnsafeMutableRawBufferPointer,
storage: inout sockaddr_storage,
storageLen: inout socklen_t,
controlBytes: inout UnsafeReceivedControlBytes) throws -> IOResult<Int> {
throw ChannelError.operationUnsupported
}
func sendmsg(pointer: UnsafeRawBufferPointer,
destinationPtr: UnsafePointer<sockaddr>?,
destinationSize: socklen_t,
controlBytes: UnsafeMutableRawBufferPointer) throws -> IOResult<Int> {
throw ChannelError.operationUnsupported
}
func sendFile(fd: CInt, offset: Int, count: Int) throws -> IOResult<Int> {
throw ChannelError.operationUnsupported
}
func recvmmsg(msgs: UnsafeMutableBufferPointer<MMsgHdr>) throws -> IOResult<Int> {
throw ChannelError.operationUnsupported
}
func sendmmsg(msgs: UnsafeMutableBufferPointer<MMsgHdr>) throws -> IOResult<Int> {
throw ChannelError.operationUnsupported
}
func shutdown(how: Shutdown) throws {
switch how {
case .RD:
try self.inputFD?.close()
case .WR:
try self.outputFD?.close()
case .RDWR:
try self.close()
}
}
var isOpen: Bool {
return self.inputFD?.isOpen ?? false || self.outputFD?.isOpen ?? false
}
func close() throws {
guard self.isOpen else {
throw ChannelError.alreadyClosed
}
let r1 = Result {
if let inputFD = self.inputFD, inputFD.isOpen {
try inputFD.close()
}
}
let r2 = Result {
if let outputFD = self.outputFD, outputFD.isOpen {
try outputFD.close()
}
}
try r1.get()
try r2.get()
}
func bind(to address: SocketAddress) throws {
throw ChannelError.operationUnsupported
}
func localAddress() throws -> SocketAddress {
throw ChannelError.operationUnsupported
}
func remoteAddress() throws -> SocketAddress {
throw ChannelError.operationUnsupported
}
func setOption<T>(level: NIOBSDSocket.OptionLevel, name: NIOBSDSocket.Option, value: T) throws {
throw ChannelError.operationUnsupported
}
func getOption<T>(level: NIOBSDSocket.OptionLevel, name: NIOBSDSocket.Option) throws -> T {
throw ChannelError.operationUnsupported
}
}
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