Move servers and clients to separate fies

README.md

@@ -78,10 +78,10 @@ switch client.connect(timeout: 1) {
 ## Server socket example (echo server)
 ``` swift
 func echoService(client: TCPClient) {
-    print("Newclient from:\(client.address)[\(client.port)]")
+    print("Newclient from:\(c.address)[\(c.port)]")
-    var d = client.read(1024*10)
+    var d = c.read(1024*10)
-    client.send(data: d!)
+    c.send(data: d!)
-    client.close()
+    c.close()
 }
 
 func testServer() {

Sources/TCPClient.swift

@@ -32,14 +32,11 @@ import Foundation
 
 @_silgen_name("ytcpsocket_connect") private func c_ytcpsocket_connect(_ host:UnsafePointer<Byte>,port:Int32,timeout:Int32) -> Int32
 @_silgen_name("ytcpsocket_close") private func c_ytcpsocket_close(_ fd:Int32) -> Int32
-@_silgen_name("ytcpsocket_bytes_available") private func c_ytcpsocket_bytes_available(_ fd:Int32) -> Int32
 @_silgen_name("ytcpsocket_send") private func c_ytcpsocket_send(_ fd:Int32,buff:UnsafePointer<Byte>,len:Int32) -> Int32
 @_silgen_name("ytcpsocket_pull") private func c_ytcpsocket_pull(_ fd:Int32,buff:UnsafePointer<Byte>,len:Int32,timeout:Int32) -> Int32
-@_silgen_name("ytcpsocket_listen") private func c_ytcpsocket_listen(_ address:UnsafePointer<Int8>,port:Int32)->Int32
-@_silgen_name("ytcpsocket_accept") private func c_ytcpsocket_accept(_ onsocketfd:Int32,ip:UnsafePointer<Int8>,port:UnsafePointer<Int32>,timeout:Int32) -> Int32
-@_silgen_name("ytcpsocket_port") private func c_ytcpsocket_port(_ fd:Int32) -> Int32
 
 open class TCPClient: Socket {
+  
     /*
      * connect to server
      * return success or fail with message
@@ -62,7 +59,7 @@ open class TCPClient: Socket {
             }
         }
     }
-
+  
     /*
     * close socket
     * return success or fail with message
@@ -136,66 +133,4 @@ open class TCPClient: Socket {
       
         return data
     }
-
-    /*
-    * gets byte available for reading
-    */
-    open func bytesAvailable() -> Int32? {
-        guard let fd:Int32 = self.fd else { return nil }
-
-        let bytesAvailable = c_ytcpsocket_bytes_available(fd);
-
-        if (bytesAvailable < 0) {
-            return nil
-        }
-
-        return bytesAvailable
-    }
-}
-
-open class TCPServer: Socket {
-
-    open func listen() -> Result {
-        let fd = c_ytcpsocket_listen(self.address, port: Int32(self.port))
-        if fd > 0 {
-            self.fd = fd
-            
-            // If port 0 is used, get the actual port number which the server is listening to
-            if (self.port == 0) {
-                let p = c_ytcpsocket_port(fd)
-                if (p == -1) {
-                    return .failure(SocketError.unknownError)
-                } else {
-                    self.port = p
-                }
-            }
-            
-            return .success
-        } else {
-            return .failure(SocketError.unknownError)
-        }
-    }
-    
-    open func accept(timeout :Int32 = 0) -> TCPClient? {
-        guard let serferfd = self.fd else { return nil }
-        
-        var buff: [Int8] = [Int8](repeating: 0x0,count: 16)
-        var port: Int32 = 0
-        let clientfd: Int32 = c_ytcpsocket_accept(serferfd, ip: &buff, port: &port, timeout: timeout)
-        
-        guard clientfd >= 0 else { return nil }
-        guard let address = String(cString: buff, encoding: String.Encoding.utf8) else { return nil }
-        
-        let client = TCPClient(address: address, port: port)
-        client.fd = clientfd
-            
-        return client
-    }
-    
-    open func close() {
-        guard let fd: Int32=self.fd else { return }
-      
-        _ = c_ytcpsocket_close(fd)
-        self.fd = nil
-    }
 }

Sources/TCPServer.swift

@@ -0,0 +1,83 @@
+//
+//  Copyright (c) <2014>, skysent
+//  All rights reserved.
+//
+//  Redistribution and use in source and binary forms, with or without
+//  modification, are permitted provided that the following conditions are met:
+//  1. Redistributions of source code must retain the above copyright
+//  notice, this list of conditions and the following disclaimer.
+//  2. Redistributions in binary form must reproduce the above copyright
+//  notice, this list of conditions and the following disclaimer in the
+//  documentation and/or other materials provided with the distribution.
+//  3. All advertising materials mentioning features or use of this software
+//  must display the following acknowledgement:
+//  This product includes software developed by skysent.
+//  4. Neither the name of the skysent nor the
+//  names of its contributors may be used to endorse or promote products
+//  derived from this software without specific prior written permission.
+//
+//  THIS SOFTWARE IS PROVIDED BY skysent ''AS IS'' AND ANY
+//  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+//  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+//  DISCLAIMED. IN NO EVENT SHALL skysent BE LIABLE FOR ANY
+//  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+//  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+//  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+//  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+//  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+//  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+import Foundation
+
+@_silgen_name("ytcpsocket_listen") private func c_ytcpsocket_listen(_ address:UnsafePointer<Int8>,port:Int32)->Int32
+@_silgen_name("ytcpsocket_accept") private func c_ytcpsocket_accept(_ onsocketfd:Int32,ip:UnsafePointer<Int8>,port:UnsafePointer<Int32>) -> Int32
+@_silgen_name("ytcpsocket_port") private func c_ytcpsocket_port(_ fd:Int32) -> Int32
+@_silgen_name("ytcpsocket_close") private func c_ytcpsocket_close(_ fd:Int32) -> Int32
+
+open class TCPServer: Socket {
+
+    open func listen() -> Result {
+        let fd = c_ytcpsocket_listen(self.address, port: Int32(self.port))
+        if fd > 0 {
+            self.fd = fd
+            
+            // If port 0 is used, get the actual port number which the server is listening to
+            if (self.port == 0) {
+                let p = c_ytcpsocket_port(fd)
+                if (p == -1) {
+                    return .failure(SocketError.unknownError)
+                } else {
+                    self.port = p
+                }
+            }
+            
+            return .success
+        } else {
+            return .failure(SocketError.unknownError)
+        }
+    }
+    
+    open func accept() -> TCPClient? {
+        guard let serferfd = self.fd else { return nil }
+        
+        var buff: [Int8] = [Int8](repeating: 0x0,count: 16)
+        var port: Int32 = 0
+        let clientfd: Int32 = c_ytcpsocket_accept(serferfd, ip: &buff, port: &port)
+        
+        guard clientfd >= 0 else { return nil }
+        guard let address = String(cString: buff, encoding: String.Encoding.utf8) else { return nil }
+        
+        let client = TCPClient(address: address, port: port)
+        client.fd = clientfd
+            
+        return client
+    }
+    
+    open func close() {
+        guard let fd: Int32=self.fd else { return }
+      
+        _ = c_ytcpsocket_close(fd)
+        self.fd = nil
+    }
+}

Sources/UDPClient.swift

@@ -30,8 +30,6 @@
 
 import Foundation
 
-@_silgen_name("yudpsocket_server") func c_yudpsocket_server(_ host:UnsafePointer<Int8>,port:Int32) -> Int32
-@_silgen_name("yudpsocket_recive") func c_yudpsocket_recive(_ fd:Int32,buff:UnsafePointer<Byte>,len:Int32,ip:UnsafePointer<Int8>,port:UnsafePointer<Int32>) -> Int32
 @_silgen_name("yudpsocket_close") func c_yudpsocket_close(_ fd:Int32) -> Int32
 @_silgen_name("yudpsocket_client") func c_yudpsocket_client() -> Int32
 @_silgen_name("yudpsocket_get_server_ip") func c_yudpsocket_get_server_ip(_ host:UnsafePointer<Int8>,ip:UnsafePointer<Int8>) -> Int32
@@ -111,26 +109,6 @@ open class UDPClient: Socket {
         }
     }
     
-    //TODO add multycast and boardcast
-    open func recv(_ expectlen: Int) -> ([Byte]?, String, Int) {
-        guard let fd = self.fd else {
-            return (nil, "no ip", 0)
-        }
-        let buff: [Byte] = [Byte](repeating: 0x0, count: expectlen)
-        var remoteipbuff: [Int8] = [Int8](repeating: 0x0, count: 16)
-        var remoteport: Int32 = 0
-        let readLen: Int32 = c_yudpsocket_recive(fd, buff: buff, len: Int32(expectlen), ip: &remoteipbuff, port: &remoteport)
-        let port: Int = Int(remoteport)
-        let address = String(cString: remoteipbuff, encoding: String.Encoding.utf8) ?? ""
-        
-        if readLen <= 0 {
-            return (nil, address, port)
-        }
-
-        let data: [Byte] = Array(buff[0..<Int(readLen)])
-        return (data, address, port)
-    }
-    
     open func close() {
         guard let fd = self.fd else { return }
         
@@ -139,47 +117,3 @@ open class UDPClient: Socket {
     }
     //TODO add multycast and boardcast
 }
-
-open class UDPServer: Socket {
-    
-    public override init(address: String, port: Int32) {
-        super.init(address: address, port: port)
-      
-        let fd = c_yudpsocket_server(address, port: port)
-        if fd > 0 { 
-            self.fd = fd
-        }
-    }
-  
-    //TODO add multycast and boardcast
-    open func recv(_ expectlen: Int) -> ([Byte]?, String, Int) {
-        if let fd = self.fd {
-            let buff: [Byte] = [Byte](repeating: 0x0,count: expectlen)
-            var remoteipbuff: [Int8] = [Int8](repeating: 0x0,count: 16)
-            var remoteport: Int32 = 0
-            let readLen: Int32 = c_yudpsocket_recive(fd, buff: buff, len: Int32(expectlen), ip: &remoteipbuff, port: &remoteport)
-            let port: Int = Int(remoteport)
-            var address = ""
-            if let ip = String(cString: remoteipbuff, encoding: String.Encoding.utf8) {
-                address = ip
-            }
-          
-            if readLen <= 0 {
-                return (nil, address, port)
-            }
-          
-            let rs = buff[0...Int(readLen-1)]
-            let data: [Byte] = Array(rs)
-            return (data, address, port)
-        }
-      
-        return (nil, "no ip", 0)
-    }
-  
-    open func close() {
-        guard let fd = self.fd else { return }
-        
-        _ = c_yudpsocket_close(fd)
-        self.fd = nil
-    }
-}

Sources/UDPServer.swift

@@ -0,0 +1,78 @@
+//
+//  Copyright (c) <2014>, skysent
+//  All rights reserved.
+//
+//  Redistribution and use in source and binary forms, with or without
+//  modification, are permitted provided that the following conditions are met:
+//  1. Redistributions of source code must retain the above copyright
+//  notice, this list of conditions and the following disclaimer.
+//  2. Redistributions in binary form must reproduce the above copyright
+//  notice, this list of conditions and the following disclaimer in the
+//  documentation and/or other materials provided with the distribution.
+//  3. All advertising materials mentioning features or use of this software
+//  must display the following acknowledgement:
+//  This product includes software developed by skysent.
+//  4. Neither the name of the skysent nor the
+//  names of its contributors may be used to endorse or promote products
+//  derived from this software without specific prior written permission.
+//
+//  THIS SOFTWARE IS PROVIDED BY skysent ''AS IS'' AND ANY
+//  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+//  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+//  DISCLAIMED. IN NO EVENT SHALL skysent BE LIABLE FOR ANY
+//  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+//  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+//  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+//  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+//  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+//  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+import Foundation
+
+@_silgen_name("yudpsocket_server") func c_yudpsocket_server(_ host:UnsafePointer<Int8>,port:Int32) -> Int32
+@_silgen_name("yudpsocket_recive") func c_yudpsocket_recive(_ fd:Int32,buff:UnsafePointer<Byte>,len:Int32,ip:UnsafePointer<Int8>,port:UnsafePointer<Int32>) -> Int32
+
+open class UDPServer: Socket {
+    
+    public override init(address: String, port: Int32) {
+        super.init(address: address, port: port)
+      
+        let fd = c_yudpsocket_server(address, port: port)
+        if fd > 0 { 
+            self.fd = fd
+        }
+    }
+  
+    //TODO add multycast and boardcast
+    open func recv(_ expectlen: Int) -> ([Byte]?, String, Int) {
+        if let fd = self.fd {
+            var buff: [Byte] = [Byte](repeating: 0x0,count: expectlen)
+            var remoteipbuff: [Int8] = [Int8](repeating: 0x0,count: 16)
+            var remoteport: Int32 = 0
+            let readLen: Int32 = c_yudpsocket_recive(fd, buff: buff, len: Int32(expectlen), ip: &remoteipbuff, port: &remoteport)
+            let port: Int = Int(remoteport)
+            var address = ""
+            if let ip = String(cString: remoteipbuff, encoding: String.Encoding.utf8) {
+                address = ip
+            }
+          
+            if readLen <= 0 {
+                return (nil, address, port)
+            }
+          
+            let rs = buff[0...Int(readLen-1)]
+            let data: [Byte] = Array(rs)
+            return (data, address, port)
+        }
+      
+        return (nil, "no ip", 0)
+    }
+  
+    open func close() {
+        guard let fd = self.fd else { return }
+        
+        _ = c_yudpsocket_close(fd)
+        self.fd = nil
+    }
+}

Sources/ytcpsocket.c

@@ -37,14 +37,12 @@
 #include <netinet/in.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
-#include <sys/time.h>
 #include <dirent.h>
 #include <netdb.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <signal.h>
 #include <sys/select.h>
-#include <sys/ioctl.h>
 
 void ytcpsocket_set_block(int socket, int on) {
     int flags;
@@ -95,6 +93,7 @@ int ytcpsocket_connect(const char *host, int port, int timeout) {
             return -4;//connect fail
         }
       
+        ytcpsocket_set_block(sockfd, 1);
         int set = 1;
         setsockopt(sockfd, SOL_SOCKET, SO_NOSIGPIPE, (void *)&set, sizeof(int));
         return sockfd;
@@ -106,8 +105,6 @@ int ytcpsocket_close(int socketfd){
 }
 
 int ytcpsocket_pull(int socketfd, char *data, int len, int timeout_sec) {
-    int readlen = 0;
-    int datalen = 0;
     if (timeout_sec > 0) {
         fd_set fdset;
         struct timeval timeout;
@@ -120,26 +117,8 @@ int ytcpsocket_pull(int socketfd, char *data, int len, int timeout_sec) {
             return ret; // select-call failed or timeout occurred (before anything was sent)
         }
     }
-    // use loop to make sure receive all data
+    int readlen = (int)read(socketfd, data, len);
-    do {
+    return readlen;
-        readlen = (int)read(socketfd, data + datalen, len - datalen);
-        if (readlen > 0) {
-            datalen += readlen;
-        }
-    } while (readlen > 0);
-    
-    return datalen;
-}
-
-int ytcpsocket_bytes_available(int socketfd) {
-    int count;
-    int callResult = ioctl(socketfd, FIONREAD, &count);
-
-    if (callResult < 0) {
-        return callResult;
-    }
-
-    return count;
 }
 
 int ytcpsocket_send(int socketfd, const char *data, int len){
@@ -180,31 +159,15 @@ int ytcpsocket_listen(const char *address, int port) {
 }
 
 //return client socket fd
-int ytcpsocket_accept(int onsocketfd, char *remoteip, int *remoteport, int timeouts) {
+int ytcpsocket_accept(int onsocketfd, char *remoteip, int *remoteport) {
     socklen_t clilen;
     struct sockaddr_in  cli_addr;
     clilen = sizeof(cli_addr);
-    fd_set fdset;
-    FD_ZERO(&fdset);
-    FD_SET(onsocketfd, &fdset);
-    struct timeval *timeptr = NULL;
-    struct timeval timeout;
-    if (timeouts > 0) {
-      timeout.tv_sec = timeouts;
-      timeout.tv_usec = 0;
-      timeptr = &timeout;
-    }
-    int status = select(FD_SETSIZE, &fdset, NULL, NULL, timeptr);
-    if (status != 1) {
-      return -1;
-    }
     int newsockfd = accept(onsocketfd, (struct sockaddr *) &cli_addr, &clilen);
     char *clientip=inet_ntoa(cli_addr.sin_addr);
     memcpy(remoteip, clientip, strlen(clientip));
     *remoteport = cli_addr.sin_port;
     if (newsockfd > 0) {
-        int set = 1;
-        setsockopt(newsockfd, SOL_SOCKET, SO_NOSIGPIPE, (void*) &set, sizeof(int));
         return newsockfd;
     } else {
         return -1;

Sources/yudpsocket.c

@@ -48,7 +48,6 @@ int yudpsocket_server(const char *address, int port) {
   
     //bind
     struct sockaddr_in serv_addr;
-    memset( &serv_addr, '\0', sizeof(serv_addr));
     serv_addr.sin_len = sizeof(struct sockaddr_in);
     serv_addr.sin_family = AF_INET;
     if (address == NULL || strlen(address) == 0 || strcmp(address, "255.255.255.255") == 0) {
@@ -59,6 +58,7 @@ int yudpsocket_server(const char *address, int port) {
         r = setsockopt(socketfd, SOL_SOCKET, SO_REUSEADDR, &reuseon, sizeof(reuseon));
         serv_addr.sin_addr.s_addr = inet_addr(address);
         serv_addr.sin_port = htons(port);
+        memset( &serv_addr, '\0', sizeof(serv_addr));
     }
   
     if (r == -1) {
@@ -95,10 +95,6 @@ int yudpsocket_client() {
     int socketfd = socket(AF_INET, SOCK_DGRAM, 0);
     int reuseon = 1;
     setsockopt(socketfd, SOL_SOCKET, SO_REUSEADDR, &reuseon, sizeof(reuseon));
-
-    //disable SIGPIPE as we'll handle send errors ourselves
-    int noSigPipe = 1;
-    setsockopt(socketfd, SOL_SOCKET, SO_NOSIGPIPE, &noSigPipe, sizeof(noSigPipe));
   
     return socketfd;
 }

SwiftSocket.podspec

@@ -1,11 +1,11 @@
 Pod::Spec.new do |s|
 
   s.name         = 'SwiftSocket'
-  s.version      = '2.0.2'
+  s.version      = '2.0.1'
   s.summary      = 'A cool framework to work with TCP and UDP sockets'
 
   s.description  = <<-DESC
-                    SwiftSocket provides an easy way to create TCP or UDP clients and servers 💁
+                    SwiftSocket profieds an easy way to create TCP or UDP clients and servers 💁
                    DESC
 
   s.homepage     = 'https://github.com/swiftsocket/SwiftSocket'
@@ -23,6 +23,6 @@ Pod::Spec.new do |s|
     :tag => s.version
   }
   s.source_files  = 'Sources/**/*.{swift,c}'
-  s.pod_target_xcconfig = { 'SWIFT_VERSION' => '5' }
+  s.pod_target_xcconfig = { 'SWIFT_VERSION' => '3' }
 
 end

SwiftSocket.xcodeproj/project.pbxproj

@@ -33,6 +33,12 @@
 		375C48351DDC4C56008C701D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 375C48331DDC4C56008C701D /* Main.storyboard */; };
 		375C48371DDC4C56008C701D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 375C48361DDC4C56008C701D /* Assets.xcassets */; };
 		375C483A1DDC4C56008C701D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 375C48381DDC4C56008C701D /* LaunchScreen.storyboard */; };
+		37DA08A81E1FDD6D00C88E31 /* TCPServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 37DA08A71E1FDD6D00C88E31 /* TCPServer.swift */; };
+		37DA08A91E1FDD6D00C88E31 /* TCPServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 37DA08A71E1FDD6D00C88E31 /* TCPServer.swift */; };
+		37DA08AA1E1FDD6D00C88E31 /* TCPServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 37DA08A71E1FDD6D00C88E31 /* TCPServer.swift */; };
+		37DA08B01E1FDE3500C88E31 /* UDPServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 37DA08AF1E1FDE3500C88E31 /* UDPServer.swift */; };
+		37DA08B11E1FDE3500C88E31 /* UDPServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 37DA08AF1E1FDE3500C88E31 /* UDPServer.swift */; };
+		37DA08B21E1FDE3500C88E31 /* UDPServer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 37DA08AF1E1FDE3500C88E31 /* UDPServer.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -55,6 +61,8 @@
 		375C483B1DDC4C56008C701D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		377DAA691DCDE40200009697 /* SwiftSocket.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = SwiftSocket.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		377DAA761DCDE45D00009697 /* SwiftSocket.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = SwiftSocket.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		37DA08A71E1FDD6D00C88E31 /* TCPServer.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = TCPServer.swift; path = Sources/TCPServer.swift; sourceTree = SOURCE_ROOT; };
+		37DA08AF1E1FDE3500C88E31 /* UDPServer.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = UDPServer.swift; path = Sources/UDPServer.swift; sourceTree = SOURCE_ROOT; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -89,22 +97,24 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
-		375BC51D1DCDE86B006AD8F6 /* TCPSocket */ = {
+		375BC51D1DCDE86B006AD8F6 /* TCP */ = {
 			isa = PBXGroup;
 			children = (
 				372313941DCF84E30042DA87 /* TCPClient.swift */,
+				37DA08A71E1FDD6D00C88E31 /* TCPServer.swift */,
 				372313951DCF84E30042DA87 /* ytcpsocket.c */,
 			);
-			name = TCPSocket;
+			name = TCP;
 			sourceTree = "<group>";
 		};
-		375BC51E1DCDE878006AD8F6 /* UDPSocket */ = {
+		375BC51E1DCDE878006AD8F6 /* UDP */ = {
 			isa = PBXGroup;
 			children = (
 				372313901DCF84D80042DA87 /* UDPClient.swift */,
+				37DA08AF1E1FDE3500C88E31 /* UDPServer.swift */,
 				372313911DCF84D80042DA87 /* yudpsocket.c */,
 			);
-			name = UDPSocket;
+			name = UDP;
 			sourceTree = "<group>";
 		};
 		375C482E1DDC4C56008C701D /* iOS Example */ = {
@@ -156,8 +166,8 @@
 			children = (
 				372313981DCF84EC0042DA87 /* Result.swift */,
 				372313991DCF84EC0042DA87 /* Socket.swift */,
-				375BC51D1DCDE86B006AD8F6 /* TCPSocket */,
+				375BC51D1DCDE86B006AD8F6 /* TCP */,
-				375BC51E1DCDE878006AD8F6 /* UDPSocket */,
+				375BC51E1DCDE878006AD8F6 /* UDP */,
 				377DAA6A1DCDE40200009697 /* Supporting Files */,
 			);
 			name = Source;
@@ -273,12 +283,11 @@
 			attributes = {
 				LastSwiftMigration = 0710;
 				LastSwiftUpdateCheck = 0810;
-				LastUpgradeCheck = 1020;
+				LastUpgradeCheck = 0710;
 				ORGANIZATIONNAME = swift;
 				TargetAttributes = {
 					37454EC91E06158200800AE5 = {
 						CreatedOnToolsVersion = 8.2;
-						LastSwiftMigration = 1020;
 						ProvisioningStyle = Manual;
 					};
 					375C482C1DDC4C56008C701D = {
@@ -287,19 +296,18 @@
 					};
 					377DAA681DCDE40200009697 = {
 						CreatedOnToolsVersion = 8.1;
-						LastSwiftMigration = 1020;
+						LastSwiftMigration = 0810;
 						ProvisioningStyle = Manual;
 					};
 					377DAA751DCDE45D00009697 = {
 						CreatedOnToolsVersion = 8.1;
-						LastSwiftMigration = 1020;
 						ProvisioningStyle = Manual;
 					};
 				};
 			};
 			buildConfigurationList = 5518C82A19A3290F0049DC22 /* Build configuration list for PBXProject "SwiftSocket" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = en;
+			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
@@ -359,9 +367,11 @@
 			files = (
 				37454EE31E06163D00800AE5 /* UDPClient.swift in Sources */,
 				37454EE01E06163D00800AE5 /* Socket.swift in Sources */,
+				37DA08B21E1FDE3500C88E31 /* UDPServer.swift in Sources */,
 				37454EE41E06163D00800AE5 /* yudpsocket.c in Sources */,
 				37454EDF1E06163D00800AE5 /* Result.swift in Sources */,
 				37454EE21E06163D00800AE5 /* ytcpsocket.c in Sources */,
+				37DA08AA1E1FDD6D00C88E31 /* TCPServer.swift in Sources */,
 				37454EE11E06163D00800AE5 /* TCPClient.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -381,9 +391,11 @@
 			files = (
 				372313931DCF84D80042DA87 /* yudpsocket.c in Sources */,
 				3723139A1DCF84EC0042DA87 /* Result.swift in Sources */,
+				37DA08B01E1FDE3500C88E31 /* UDPServer.swift in Sources */,
 				3723139B1DCF84EC0042DA87 /* Socket.swift in Sources */,
 				372313921DCF84D80042DA87 /* UDPClient.swift in Sources */,
 				372313971DCF84E30042DA87 /* ytcpsocket.c in Sources */,
+				37DA08A81E1FDD6D00C88E31 /* TCPServer.swift in Sources */,
 				372313961DCF84E30042DA87 /* TCPClient.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -394,9 +406,11 @@
 			files = (
 				37454EDC1E06163C00800AE5 /* UDPClient.swift in Sources */,
 				37454ED91E06163C00800AE5 /* Socket.swift in Sources */,
+				37DA08B11E1FDE3500C88E31 /* UDPServer.swift in Sources */,
 				37454EDD1E06163C00800AE5 /* yudpsocket.c in Sources */,
 				37454ED81E06163C00800AE5 /* Result.swift in Sources */,
 				37454EDB1E06163C00800AE5 /* ytcpsocket.c in Sources */,
+				37DA08A91E1FDD6D00C88E31 /* TCPServer.swift in Sources */,
 				37454EDA1E06163C00800AE5 /* TCPClient.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -447,8 +461,8 @@
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
-				TARGETED_DEVICE_FAMILY = 3;
+				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -479,8 +493,8 @@
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
-				TARGETED_DEVICE_FAMILY = 3;
+				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -504,7 +518,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = iphoneos;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -527,7 +541,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 			};
@@ -561,7 +575,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -595,7 +609,7 @@
 				SDKROOT = iphoneos;
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -623,7 +637,7 @@
 				PRODUCT_NAME = SwiftSocket;
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
@@ -649,7 +663,7 @@
 				PRODUCT_NAME = SwiftSocket;
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VALIDATE_PRODUCT = YES;
@@ -660,28 +674,17 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
@@ -689,7 +692,6 @@
 				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
@@ -709,7 +711,7 @@
 				PRODUCT_NAME = "";
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 3.0;
 			};
 			name = Debug;
 		};
@@ -717,35 +719,23 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = YES;
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
-				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
@@ -757,8 +747,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_NAME = "";
 				SDKROOT = macosx;
-				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_VERSION = 3.0;
-				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};

SwiftSocket.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEDidComputeMac32BitWarning</key>
-	<true/>
-</dict>
-</plist>

SwiftSocket.xcodeproj/xcshareddata/xcschemes/SwiftSocket iOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "0820"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

SwiftSocket.xcodeproj/xcshareddata/xcschemes/SwiftSocket macOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "0820"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

SwiftSocket.xcodeproj/xcshareddata/xcschemes/SwiftSocket tvOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "0820"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

iOS Example/AppDelegate.swift

@@ -12,8 +12,9 @@ import UIKit
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
   var window: UIWindow?
- 
+
-  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+
+  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
     return true
   }