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