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/*
This source file is part of the Swift.org open source project
Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
import TSCBasic
import TSCLibc
#if os(Windows)
#else
public final class PseudoTerminal {
let primary: Int32
let secondary: Int32
public var outStream: LocalFileOutputByteStream
public init?(){
var primary: Int32 = 0
var secondary: Int32 = 0
if openpty(&primary, &secondary, nil, nil, nil) != 0 {
return nil
}
guard let outStream = try? LocalFileOutputByteStream(filePointer: fdopen(secondary, "w")!, closeOnDeinit: false) else {
return nil
}
self.outStream = outStream
self.primary = primary
self.secondary = secondary
}
public func readPrimary(maxChars n: Int = 1000) -> String? {
var buf: [CChar] = [CChar](repeating: 0, count: n)
if read(primary, &buf, n) <= 0 {
return nil
}
return String(cString: buf)
}
public func closeSecondary() {
_ = TSCLibc.close(secondary)
}
public func closePrimary() {
_ = TSCLibc.close(primary)
}
public func close() {
closeSecondary()
closePrimary()
}
}
#endif
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