0001    // UDP.swift
0002    //
0003    // The MIT License (MIT)
0004    //
0005    // Copyright (c) 2015 Zewo
0006    //
0007    // Permission is hereby granted, free of charge, to any person obtaining a copy
0008    // of this software and associated documentation files (the "Software"), to deal
0009    // in the Software without restriction, including without limitation the rights
0010    // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
0011    // copies of the Software, and to permit persons to whom the Software is
0012    // furnished to do so, subject to the following conditions:
0013    //
0014    // The above copyright notice and this permission notice shall be included in all
0015    // copies or substantial portions of the Software.
0016    //
0017    // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0018    // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0019    // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
0020    // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
0021    // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
0022    // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
0023    // SOFTWARE.
0024    
0025    import CLibvenice
0026    @_exported import IP
0027    @_exported import Data
0028    
0029    public final class UDPSocket {
0030        private var socket
UDP.swift:34
        return Int(udpport(socket))
UDP.swift:38
        self.socket = socket
UDP.swift:51
        if !closed && socket != nil {
UDP.swift:52
            udpclose(socket)
UDP.swift:102
        udpclose(socket): udpsock
0031        public private(set) var closed
UDP.swift:51
        if !closed && socket != nil {
UDP.swift:84
        if !closed {
UDP.swift:90
        closed = false
UDP.swift:95
        closed = true
UDP.swift:101
        closed = true
UDP.swift:106
        if closed { = false
0032    
0033        public var port: Int {
0034            return Int(udpport(socket))
0035        }
0036    
0037        public init(socket: udpsock) throws {
0038            self.socket = socket
0039            try UDPError.assertNoError()
0040        }
0041    
0042        public convenience init(ip: IP) throws {
0043            try self.init(socket: udplisten(ip.address))
0044        }
0045    
0046        public convenience init(fileDescriptor: Int32) throws {
0047            try self.init(socket: udpattach(fileDescriptor))
0048        }
0049    
0050        deinit {
0051            if !closed && socket != nil {
0052                udpclose(socket)
0053            }
0054        }
0055    
0056        public func send(ip ip: IP, data: Data, deadline: Deadline = never) throws {
0057            try assertNotClosed()
0058    
0059            data.withUnsafeBufferPointer {
0060                udpsend(socket, ip.address, $0.baseAddress, $0.count)
0061            }
0062    
0063            try UDPError.assertNoError()
0064        }
0065    
0066        public func receive(length length: Int, deadline: Deadline = never) throws -> (Data, IP) {
0067            try assertNotClosed()
0068    
0069            var address = ipaddr()
0070            var data = Data.bufferWithSize(length)
0071    
0072            let bytesProcessed = data.withUnsafeMutableBufferPointer {
0073                udprecv(socket, &address, $0.baseAddress, $0.count, deadline)
0074            }
0075    
0076            try UDPError.assertNoReceiveErrorWithData(data, bytesProcessed: bytesProcessed)
0077    
0078            let processedData = data.prefix(bytesProcessed)
0079            let ip = try IP(address: address)
0080            return (processedData, ip)
0081        }
0082    
0083        public func attach(fileDescriptor: FileDescriptor) throws {
0084            if !closed {
0085                try close()
0086            }
0087    
0088            socket = udpattach(fileDescriptor)
0089            try UDPError.assertNoError()
0090            closed = false
0091        }
0092    
0093        public func detach() throws -> FileDescriptor {
0094            try assertNotClosed()
0095            closed = true
0096            return udpdetach(socket)
0097        }
0098    
0099        public func close
UDP.swift:85
            try close()() throws {
0100            try assertNotClosed()
0101            closed = true
0102            udpclose(socket)
0103        }
0104    
0105        func assertNotClosed
UDP.swift:57
        try assertNotClosed()
UDP.swift:67
        try assertNotClosed()
UDP.swift:94
        try assertNotClosed()
UDP.swift:100
        try assertNotClosed()() throws {
0106            if closed {
0107                throw UDPError.closedSocketError
0108            }
0109        }
0110    }