Start to switch over to NIO Transport Services

Author: Yasumoto

Package.swift

@@ -24,11 +24,12 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-nio.git", from: "2.10.1"),
         .package(url: "https://github.com/apple/swift-nio-ssl.git", from: "2.0.0"),
         .package(url: "https://github.com/apple/swift-nio-extras.git", from: "1.3.0"),
+        .package(url: "https://github.com/apple/swift-nio-transport-services", from: "1.0.0")
     ],
     targets: [
         .target(
             name: "AsyncHTTPClient",
-            dependencies: ["NIO", "NIOHTTP1", "NIOSSL", "NIOConcurrencyHelpers", "NIOHTTPCompression", "NIOFoundationCompat"]
+            dependencies: ["NIO", "NIOHTTP1", "NIOSSL", "NIOTransportServices", "NIOConcurrencyHelpers", "NIOHTTPCompression", "NIOFoundationCompat"]
         ),
         .testTarget(
             name: "AsyncHTTPClientTests",

Sources/AsyncHTTPClient/HTTPClient.swift

@@ -18,6 +18,10 @@ import NIOConcurrencyHelpers
 import NIOHTTP1
 import NIOHTTPCompression
 import NIOSSL
+#if canImport(Network)
+import Network
+import NIOTransportServices
+#endif
 
 /// HTTPClient class provides API for request execution.
 ///
@@ -61,7 +65,15 @@ public class HTTPClient {
         case .shared(let group):
             self.eventLoopGroup = group
         case .createNew:
-            self.eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: 1)
+            #if canImport(Network)
+                if #available(OSX 10.14, iOS 12.0, tvOS 12.0, watchOS 6.0, *) {
+                    self.eventLoopGroup = NIOTSEventLoopGroup()
+                } else {
+                    self.eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: System.coreCount)
+                }
+            #else
+                self.eventLoopGroup = MultiThreadedEventLoopGroup(numberOfThreads: System.coreCount)
+            #endif
         }
         self.configuration = configuration
     }