swift-mirror/stdlib/public/SDK/Darwin/Darwin.swift

//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 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 the list of Swift project authors
//
//===----------------------------------------------------------------------===//

@exported import Darwin // Clang module


//===----------------------------------------------------------------------===//
// MacTypes.h
//===----------------------------------------------------------------------===//
public let noErr: OSStatus = 0

/// The `Boolean` type declared in MacTypes.h and used throughout Core
/// Foundation.
///
/// The C type is a typedef for `unsigned char`.
public struct DarwinBoolean : BooleanType, BooleanLiteralConvertible {
  var value: UInt8

  public init(_ value: Bool) {
    self.value = value ? 1 : 0
  }

  /// The value of `self`, expressed as a `Bool`.
  public var boolValue: Bool {
    return value != 0
  }

  /// Create an instance initialized to `value`.
  @transparent
  public init(booleanLiteral value: Bool) {
    self.init(value)
  }
}

extension DarwinBoolean : _Reflectable {
  /// Returns a mirror that reflects `self`.
  public func _getMirror() -> _MirrorType {
    return _reflect(boolValue)
  }
}

extension DarwinBoolean : CustomStringConvertible {
  /// A textual representation of `self`.
  public var description: String {
    return self.boolValue.description
  }
}

extension DarwinBoolean : Equatable {}
public func ==(lhs: DarwinBoolean, rhs: DarwinBoolean) -> Bool {
  return lhs.boolValue == rhs.boolValue
}

// FIXME: We can't make the fully-generic versions @transparent due to
// rdar://problem/19418937, so here are some @transparent overloads
// for ObjCBool
@transparent
public func && <T : BooleanType>(
  lhs: T, @autoclosure rhs: () -> DarwinBoolean
) -> Bool {
  return lhs.boolValue ? rhs().boolValue : false
}

@transparent
public func || <T : BooleanType>(
  lhs: T, @autoclosure rhs: () -> DarwinBoolean
) -> Bool {
  return lhs.boolValue ? true : rhs().boolValue
}


//===----------------------------------------------------------------------===//
// sys/errno.h
//===----------------------------------------------------------------------===//

public var errno : Int32 {
  get {
    return __error().memory
  }
  set {
    __error().memory = newValue
  }
}


//===----------------------------------------------------------------------===//
// stdio.h
//===----------------------------------------------------------------------===//

public var stdin : UnsafeMutablePointer<FILE> {
  get {
    return __stdinp
  }
  set {
    __stdinp = newValue
  }   
}

public var stdout : UnsafeMutablePointer<FILE> {
  get {
    return __stdoutp
  }
  set {
    __stdoutp = newValue
  }   
}

public var stderr : UnsafeMutablePointer<FILE> {
  get {
    return __stderrp
  }
  set {
    __stderrp = newValue
  }   
}


//===----------------------------------------------------------------------===//
// fcntl.h
//===----------------------------------------------------------------------===//

@asmname("_swift_Darwin_open") 
func _swift_Darwin_open(path: UnsafePointer<CChar>,
  _ oflag: CInt, _ mode: mode_t) -> CInt
@asmname("_swift_Darwin_openat")
func _swift_Darwin_openat(fd: CInt,
  _ path: UnsafePointer<CChar>,
  _ oflag: CInt, _ mode: mode_t) -> CInt

public func open(path: UnsafePointer<CChar>, _ oflag: CInt) -> CInt {
  return _swift_Darwin_open(path, oflag, 0)
}

public func open(path: UnsafePointer<CChar>, _ oflag: CInt,
  _ mode: mode_t) -> CInt {
  return _swift_Darwin_open(path, oflag, mode)
}

public func openat(fd: CInt, _ path: UnsafePointer<CChar>,
  _ oflag: CInt) -> CInt {
  return _swift_Darwin_openat(fd, path, oflag, 0)
}

public func openat(fd: CInt, _ path: UnsafePointer<CChar>,
  _ oflag: CInt, _ mode: mode_t) -> CInt {
  return _swift_Darwin_openat(fd, path, oflag, mode)
}


public let	S_IFMT   = mode_t(0o170000)
public let	S_IFIFO  = mode_t(0o010000)
public let	S_IFCHR  = mode_t(0o020000)
public let	S_IFDIR  = mode_t(0o040000)
public let	S_IFBLK  = mode_t(0o060000)
public let	S_IFREG  = mode_t(0o100000)
public let	S_IFLNK  = mode_t(0o120000)
public let	S_IFSOCK = mode_t(0o140000)
public let	S_IFWHT  = mode_t(0o160000)

public let	S_IRWXU  = mode_t(0o000700)
public let	S_IRUSR  = mode_t(0o000400)
public let	S_IWUSR  = mode_t(0o000200)
public let	S_IXUSR  = mode_t(0o000100)

public let	S_IRWXG  = mode_t(0o000070)
public let	S_IRGRP  = mode_t(0o000040)
public let	S_IWGRP  = mode_t(0o000020)
public let	S_IXGRP  = mode_t(0o000010)

public let	S_IRWXO  = mode_t(0o000007)
public let	S_IROTH  = mode_t(0o000004)
public let	S_IWOTH  = mode_t(0o000002)
public let	S_IXOTH  = mode_t(0o000001)

public let	S_ISUID  = mode_t(0o004000)
public let	S_ISGID  = mode_t(0o002000)
public let	S_ISVTX  = mode_t(0o001000)

public let	S_ISTXT  = S_ISVTX
public let	S_IREAD  = S_IRUSR
public let	S_IWRITE = S_IWUSR
public let	S_IEXEC  = S_IXUSR


//===----------------------------------------------------------------------===//
// unistd.h
//===----------------------------------------------------------------------===//

@available(*, unavailable, message="Please use threads or posix_spawn*()")
public func fork() -> Int32 {
  fatalError("unavailable function can't be called")
}

@available(*, unavailable, message="Please use threads or posix_spawn*()")
public func vfork() -> Int32 {
  fatalError("unavailable function can't be called")
}

//===----------------------------------------------------------------------===//
// signal.h
//===----------------------------------------------------------------------===//

#if os(OSX) || os(iOS) || os(watchOS) || os(tvOS)
public let SIG_DFL: sig_t? = nil
public let SIG_IGN = unsafeBitCast(1, sig_t.self)
public let SIG_ERR = unsafeBitCast(-1, sig_t.self)
public let SIG_HOLD = unsafeBitCast(5, sig_t.self)
#endif

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