OpenBSD support.

There is potential for simplifying some of these conditional chains.
For now, I have avoided doing this since this should be picked onto the
release branch and simply extending the chains limits the risk scope
slightly.

Author: 3405691582

Sources/SwiftDocC/Benchmark/Benchmark.swift

@@ -48,6 +48,8 @@ public class Benchmark: Encodable {
     public let platform = "Android"
     #elseif os(FreeBSD)
     public let platform = "FreeBSD"
+    #elseif os(OpenBSD)
+    public let platform = "OpenBSD"
     #else
     public let platform = "unsupported"
     #endif

Sources/SwiftDocC/Benchmark/Metrics/PeakMemory.swift

@@ -67,7 +67,7 @@ extension Benchmark {
             ) else { return nil }
             return Int64(pmcStats.PeakWorkingSetSize)
         }
-        #elseif os(FreeBSD)
+        #elseif os(FreeBSD) || os(OpenBSD)
         private static func peakMemory() -> Int64? {
             var usage = rusage()
             if (getrusage(RUSAGE_SELF, &usage) == -1) {

Sources/SwiftDocC/Infrastructure/External Data/OutOfProcessReferenceResolver.swift

@@ -517,7 +517,7 @@ private class LongRunningService: ExternalLinkResolving {
 /// This private class is only used by the ``OutOfProcessReferenceResolver`` and shouldn't be used for general communication with other processes.
 private class LongRunningProcess: ExternalLinkResolving {
 
-    #if os(macOS) || os(Linux) || os(Android) || os(FreeBSD)
+    #if os(macOS) || os(Linux) || os(Android) || os(FreeBSD) || os(OpenBSD)
     private let process: Process
 
     init(location: URL, errorOutputHandler: @escaping (String) -> Void) throws {

Sources/SwiftDocC/Model/Rendering/RenderContext.swift

@@ -61,7 +61,7 @@ public struct RenderContext {
             )
         }
 
-        #if os(macOS) || os(iOS) || os(Android) || os(Windows) || os(FreeBSD)
+        #if os(macOS) || os(iOS) || os(Android) || os(Windows) || os(FreeBSD) || os(OpenBSD)
         // Concurrently render content on macOS/iOS, Windows & Android
         let results: [(reference: ResolvedTopicReference, content: RenderReferenceStore.TopicContent)] = references.concurrentPerform { reference, results in
             results.append((reference, renderContentFor(reference)))

Sources/SwiftDocC/Utility/FoundationExtensions/AutoreleasepoolShim.swift

@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-#if os(Linux) || os(Android) || os(Windows) || os(FreeBSD)
+#if os(Linux) || os(Android) || os(Windows) || os(FreeBSD) || os(OpenBSD)
 /// A shim for non-ObjC targets that runs the given block of code.
 ///
 /// The existence of this shim allows you the use of auto-release pools to optimize memory footprint on Darwin platforms while maintaining

Sources/SwiftDocC/Utility/Synchronization.swift

@@ -35,7 +35,7 @@ public class Synchronized<Value> {
     #elseif os(Linux) || os(Android)
     /// A lock type appropriate for the current platform.
     var lock: UnsafeMutablePointer<pthread_mutex_t>
-    #elseif os(FreeBSD)
+    #elseif os(FreeBSD) || os(OpenBSD)
     /// A lock type appropriate for the current platform.
     var lock: UnsafeMutablePointer<pthread_mutex_t?>
     #elseif os(Windows)
@@ -56,7 +56,7 @@ public class Synchronized<Value> {
         lock = UnsafeMutablePointer<pthread_mutex_t>.allocate(capacity: 1)
         lock.initialize(to: pthread_mutex_t())
         pthread_mutex_init(lock, nil)
-        #elseif os(FreeBSD)
+        #elseif os(FreeBSD) || os(OpenBSD)
         lock = UnsafeMutablePointer<pthread_mutex_t?>.allocate(capacity: 1)
         lock.initialize(to: nil)
         pthread_mutex_init(lock, nil)
@@ -84,7 +84,7 @@ public class Synchronized<Value> {
         #elseif os(Linux) || os(Android)
         pthread_mutex_lock(lock)
         defer { pthread_mutex_unlock(lock) }
-        #elseif os(FreeBSD)
+        #elseif os(FreeBSD) || os(OpenBSD)
         pthread_mutex_lock(lock)
         defer { pthread_mutex_unlock(lock) }
         #elseif os(Windows)
@@ -123,7 +123,7 @@ extension Lock {
         #elseif os(Linux) || os(Android)
         pthread_mutex_lock(lock)
         defer { pthread_mutex_unlock(lock) }
-        #elseif os(FreeBSD)
+        #elseif os(FreeBSD) || os(OpenBSD)
         pthread_mutex_lock(lock)
         defer { pthread_mutex_unlock(lock) }
         #elseif os(Windows)

Sources/SwiftDocCUtilities/Utility/DirectoryMonitor.swift

@@ -11,7 +11,7 @@
 import Foundation
 import SwiftDocC
 
-#if !os(Linux) && !os(Android) && !os(Windows) && !os(FreeBSD)
+#if !os(Linux) && !os(Android) && !os(Windows) && !os(FreeBSD) && !os(OpenBSD)
 import Darwin
 
 /// A throttle object to filter events that come too fast.

Sources/SwiftDocCUtilities/Utility/Signal.swift

@@ -27,7 +27,7 @@ public struct Signal {
         signalAction.__sigaction_handler = unsafeBitCast(callback, to: sigaction.__Unnamed_union___sigaction_handler.self)
         #elseif os(Android)
         signalAction.sa_handler = callback
-        #elseif os(FreeBSD)
+        #elseif os(FreeBSD) || os(OpenBSD)
         signalAction.__sigaction_u.__sa_handler = callback
         #else
         signalAction.__sigaction_u = unsafeBitCast(callback, to: __sigaction_u.self)

Sources/docc/main.swift

@@ -8,7 +8,7 @@
  See https://swift.org/CONTRIBUTORS.txt for Swift project authors
 */
 
-#if os(macOS) || os(Linux) || os(Android) || os(Windows) || os(FreeBSD)
+#if os(macOS) || os(Linux) || os(Android) || os(Windows) || os(FreeBSD) || os(OpenBSD)
 import SwiftDocCUtilities
 
 await Task {

Tests/SwiftDocCTests/Servers/DocumentationSchemeHandlerTests.swift

@@ -24,7 +24,7 @@ class DocumentationSchemeHandlerTests: XCTestCase {
         forResource: "LegacyBundle_DoNotUseInNewTests", withExtension: "docc", subdirectory: "Test Bundles")!
 
     func testDocumentationSchemeHandler() {
-        #if !os(Linux) && !os(Android) && !os(Windows) && !os(FreeBSD)
+        #if !os(Linux) && !os(Android) && !os(Windows) && !os(FreeBSD) && !os(OpenBSD)
         let topicSchemeHandler = DocumentationSchemeHandler(withTemplateURL: templateURL)
 
         let request = URLRequest(url:  baseURL.appendingPathComponent("/images/figure1.jpg"))
@@ -50,7 +50,7 @@ class DocumentationSchemeHandlerTests: XCTestCase {
     }
 
     func testSetData() {
-        #if !os(Linux) && !os(Android) && !os(Windows) && !os(FreeBSD)
+        #if !os(Linux) && !os(Android) && !os(Windows) && !os(FreeBSD) && !os(OpenBSD)
         let topicSchemeHandler = DocumentationSchemeHandler(withTemplateURL: templateURL)
 
         let data = "hello!".data(using: .utf8)!