initial commit

CheetahIPC/Client.swift

@@ -0,0 +1,67 @@
+import CoreFoundation
+import UserNotifications
+
+public enum IPCClientError: Error {
+    case createRemoteFailure
+    case sendRequestFailure(Int32)
+}
+
+public class IPCClient {
+    let remote: CFMessagePort
+    
+    public init(messagePortName: String) throws {
+        if let remote = CFMessagePortCreateRemote(nil, messagePortName as CFString) {
+            self.remote = remote
+        } else {
+            throw IPCClientError.createRemoteFailure
+        }
+    }
+    
+    public func sendRequest(msgid: Int32, data: Data) throws -> Data? {
+        var responseData: Unmanaged<CFData>? = nil
+        
+        let result = CFMessagePortSendRequest(
+            remote,
+            msgid,
+            data as CFData,
+            1.0, // sendTimeout
+            1.0, // rcvTimeout
+            CFRunLoopMode.defaultMode.rawValue,
+            &responseData)
+        
+        if result == kCFMessagePortSuccess {
+            return responseData?.takeRetainedValue() as Data?
+        } else {
+            throw IPCClientError.sendRequestFailure(result)
+        }
+    }
+}
+
+public extension IPCClient {
+    func encode(_ object: Encodable) throws -> Data {
+        return try PropertyListEncoder().encode(object)
+    }
+    
+    func encode(_ object: NSCoding) throws -> Data {
+        return try NSKeyedArchiver.archivedData(withRootObject: object, requiringSecureCoding: true)
+    }
+    
+    func decode<T: Decodable>(_ data: Data) throws -> T {
+        return try PropertyListDecoder().decode(T.self, from: data)
+    }
+    
+    func decode<T>(_ data: Data) throws -> T? where T: NSObject, T: NSCoding {
+        return try NSKeyedUnarchiver.unarchivedObject(ofClass: T.self, from: data)
+    }
+    
+    func sendMessage(id: any RawRepresentable<Int32>, withObject object: NSCoding) throws {
+        _ = try sendRequest(msgid: id.rawValue, data: encode(object))
+    }
+    
+    func sendMessage<T: Decodable>(id: any RawRepresentable<Int32>, withObject object: NSCoding) throws -> T? {
+        guard let resultData = try sendRequest(msgid: id.rawValue, data: encode(object)) else {
+            return nil
+        }
+        return try decode(resultData)
+    }
+}