gorealis v2 refactor (#5)

* Changing default timeout for start maintenance.

* Upgrading dependencies to gorealis v2 and thrift  0.12.0

* Refactored to update to gorealis v2.

vendor/git.apache.org/thrift.git/lib/swift/Sources/TSocketServer.swift

@@ -0,0 +1,149 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements. See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership. The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License. You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied. See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+#if os(OSX) || os(iOS) || os(watchOS) || os(tvOS)
+  import Darwin
+#elseif os(Linux) || os(FreeBSD) || os(PS4) || os(Android)
+  import Glibc
+  import Dispatch
+#endif
+
+import Foundation
+import CoreFoundation
+
+public let TSocketServerClientConnectionFinished = "TSocketServerClientConnectionFinished"
+public let TSocketServerProcessorKey = "TSocketServerProcessor"
+public let TSocketServerTransportKey = "TSocketServerTransport"
+
+class TSocketServer<InProtocol: TProtocol, OutProtocol: TProtocol, Processor: TProcessor, Service> where Processor.Service == Service {
+  var socketFileHandle: FileHandle
+  var processingQueue =  DispatchQueue(label: "TSocketServer.processing",
+                                       qos: .background,
+                                       attributes: .concurrent)
+  var serviceHandler: Service
+
+  public init(port: Int,
+              service: Service,
+              inProtocol: InProtocol.Type,
+              outProtocol: OutProtocol.Type,
+              processor: Processor.Type) throws {
+    // set service handler
+    self.serviceHandler = service
+
+    // create a socket
+    var fd: Int32 = -1
+    #if os(Linux)
+      let sock = CFSocketCreate(kCFAllocatorDefault, PF_INET, Int32(SOCK_STREAM.rawValue), Int32(IPPROTO_TCP), 0, nil, nil)
+    #else
+      let sock = CFSocketCreate(kCFAllocatorDefault, PF_INET, SOCK_STREAM, IPPROTO_TCP, 0, nil, nil)
+    #endif
+    if sock != nil {
+      CFSocketSetSocketFlags(sock, CFSocketGetSocketFlags(sock) & ~kCFSocketCloseOnInvalidate)
+
+      fd = CFSocketGetNative(sock)
+      var yes = 1
+      setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, UInt32(MemoryLayout<Int>.size))
+
+      #if os(Linux)
+        var addr = sockaddr_in(sin_family: sa_family_t(AF_INET),
+                               sin_port: in_port_t(port.bigEndian),
+                               sin_addr: in_addr(s_addr: in_addr_t(0)),
+                               sin_zero: (0, 0, 0, 0, 0, 0, 0, 0))
+      #else
+        var addr = sockaddr_in(sin_len: UInt8(MemoryLayout<sockaddr_in>.size),
+                               sin_family: sa_family_t(AF_INET),
+                               sin_port: in_port_t(port.bigEndian),
+                               sin_addr: in_addr(s_addr: in_addr_t(0)),
+                               sin_zero: (0, 0, 0, 0, 0, 0, 0, 0))
+      #endif
+
+      let ptr = withUnsafePointer(to: &addr) {
+        return UnsafePointer<UInt8>(OpaquePointer($0))
+      }
+
+      let address = Data(bytes: ptr, count: MemoryLayout<sockaddr_in>.size)
+
+      let cfaddr = address.withUnsafeBytes {
+        CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, $0, address.count, nil)
+      }
+      if CFSocketSetAddress(sock, cfaddr) != CFSocketError.success { //kCFSocketSuccess {
+        CFSocketInvalidate(sock)
+        print("TSocketServer: Could not bind to address")
+        throw TTransportError(error: .notOpen, message: "Could not bind to address")
+      }
+
+    } else {
+      print("TSocketServer: No server socket")
+      throw TTransportError(error: .notOpen, message: "Could not create socket")
+    }
+
+    // wrap it in a file handle so we can get messages from it
+    socketFileHandle = FileHandle(fileDescriptor: fd, closeOnDealloc: true)
+
+    // throw away our socket
+    CFSocketInvalidate(sock)
+
+    // register for notifications of accepted incoming connections
+    _ = NotificationCenter.default.addObserver(forName: .NSFileHandleConnectionAccepted,
+                                               object: nil, queue: nil) {
+                                                [weak self] notification in
+                                                guard let strongSelf = self else { return }
+                                                strongSelf.connectionAccepted(strongSelf.socketFileHandle)
+
+    }
+
+    // tell socket to listen
+    socketFileHandle.acceptConnectionInBackgroundAndNotify()
+
+    print("TSocketServer: Listening on TCP port \(port)")
+  }
+
+  deinit {
+    NotificationCenter.default.removeObserver(self)
+  }
+
+  func connectionAccepted(_ socket: FileHandle) {
+    // Now that we have a client connected, handle the request on queue
+    processingQueue.async {
+      self.handleClientConnection(socket)
+    }
+  }
+
+  func handleClientConnection(_ clientSocket: FileHandle) {
+
+    let transport = TFileHandleTransport(fileHandle: clientSocket)
+    let processor = Processor(service: serviceHandler)
+
+    let inProtocol = InProtocol(on: transport)
+    let outProtocol = OutProtocol(on: transport)
+
+    do {
+      try processor.process(on: inProtocol, outProtocol: outProtocol)
+    } catch let error {
+      print("Error processign request: \(error)")
+    }
+    DispatchQueue.main.async {
+      NotificationCenter.default
+        .post(name: Notification.Name(rawValue: TSocketServerClientConnectionFinished),
+              object: self,
+              userInfo: [TSocketServerProcessorKey: processor,
+                         TSocketServerTransportKey: transport])
+    }
+  }
+}