Swift support and OpenBSD.

Add the right `os(OpenBSD)` directives. Ensure `DISPATCH_COCOA_COMPAT` is
defined and expose the runloop innards for `CFRunLoop` to use in
Foundation down the line.

Author: 3405691582

private/private.h

@@ -177,7 +177,7 @@ void _dispatch_prohibit_transition_to_multithreaded(bool prohibit);
 
 #if TARGET_OS_MAC
 #define DISPATCH_COCOA_COMPAT 1
-#elif defined(__linux__) || defined(__FreeBSD__) || defined(_WIN32)
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(_WIN32)
 #define DISPATCH_COCOA_COMPAT 1
 #else
 #define DISPATCH_COCOA_COMPAT 0

src/queue.c

@@ -6947,7 +6947,7 @@ _dispatch_runloop_root_queue_wakeup_4CF(dispatch_queue_t dq)
 	_dispatch_runloop_queue_wakeup(upcast(dq)._dl, 0, false);
 }
 
-#if TARGET_OS_MAC || defined(_WIN32)
+#if TARGET_OS_MAC || defined(_WIN32) || defined(__OpenBSD__)
 dispatch_runloop_handle_t
 _dispatch_runloop_root_queue_get_port_4CF(dispatch_queue_t dq)
 {

src/swift/Source.swift

@@ -116,7 +116,7 @@ extension DispatchSource {
 	}
 #endif
 
-#if !os(Linux) && !os(Android) && !os(Windows)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(OpenBSD)
 	public struct ProcessEvent : OptionSet, RawRepresentable {
 		public let rawValue: UInt
 		public init(rawValue: UInt) { self.rawValue = rawValue }
@@ -174,7 +174,7 @@ extension DispatchSource {
 	}
 #endif
 
-#if !os(Linux) && !os(Android) && !os(Windows)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(OpenBSD)
 	public class func makeProcessSource(identifier: pid_t, eventMask: ProcessEvent, queue: DispatchQueue? = nil) -> DispatchSourceProcess {
 		let source = dispatch_source_create(_swift_dispatch_source_type_PROC(), UInt(identifier), eventMask.rawValue, queue?.__wrapped)
 		return DispatchSource(source: source) as DispatchSourceProcess
@@ -224,7 +224,7 @@ extension DispatchSource {
 		return DispatchSource(source: source) as DispatchSourceUserDataReplace
 	}
 
-#if !os(Linux) && !os(Android) && !os(Windows)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(OpenBSD)
 	public class func makeFileSystemObjectSource(fileDescriptor: Int32, eventMask: FileSystemEvent, queue: DispatchQueue? = nil) -> DispatchSourceFileSystemObject {
 		let source = dispatch_source_create(_swift_dispatch_source_type_VNODE(), UInt(fileDescriptor), eventMask.rawValue, queue?.__wrapped)
 		return DispatchSource(source: source) as DispatchSourceFileSystemObject
@@ -290,7 +290,7 @@ extension DispatchSourceMemoryPressure {
 }
 #endif
 
-#if !os(Linux) && !os(Android) && !os(Windows)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(OpenBSD)
 extension DispatchSourceProcess {
 	public var handle: pid_t {
 		return pid_t(dispatch_source_get_handle(self as! DispatchSource))
@@ -646,7 +646,7 @@ extension DispatchSourceTimer {
 	}
 }
 
-#if !os(Linux) && !os(Android) && !os(Windows)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(OpenBSD)
 extension DispatchSourceFileSystemObject {
 	public var handle: Int32 {
 		return Int32(dispatch_source_get_handle((self as! DispatchSource).__wrapped))

src/swift/Wrapper.swift

@@ -181,7 +181,7 @@ extension DispatchSource : DispatchSourceMachSend,
 }
 #endif
 
-#if !os(Linux) && !os(Android) && !os(Windows)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(OpenBSD)
 extension DispatchSource : DispatchSourceProcess,
 	DispatchSourceFileSystemObject {
 }
@@ -272,7 +272,7 @@ public protocol DispatchSourceMemoryPressure : DispatchSourceProtocol {
 }
 #endif
 
-#if !os(Linux) && !os(Android) && !os(Windows)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(OpenBSD)
 public protocol DispatchSourceProcess : DispatchSourceProtocol {
 	var handle: pid_t { get }
 
@@ -302,7 +302,7 @@ public protocol DispatchSourceTimer : DispatchSourceProtocol {
 	func scheduleRepeating(wallDeadline: DispatchWallTime, interval: Double, leeway: DispatchTimeInterval)
 }
 
-#if !os(Linux) && !os(Android) && !os(Windows)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(OpenBSD)
 public protocol DispatchSourceFileSystemObject : DispatchSourceProtocol {
 	var handle: Int32 { get }