0001    // UDPError.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    @_exported import System
0026    @_exported import Data
0027    
0028    public enum UDPError
UDP.swift:39
        try UDPError.assertNoError()
UDP.swift:63
        try UDPError.assertNoError()
UDP.swift:76
        try UDPError.assertNoReceiveErrorWithData(data, bytesProcessed: bytesProcessed)
UDP.swift:89
        try UDPError.assertNoError()
UDP.swift:107
            throw UDPError.closedSocketError
UDPError.swift:35
    static func lastReceiveErrorWithData(source: Data, bytesProcessed: Int) -> UDPError {
UDPError.swift:40
    static func lastErrorWithData(data: Data) -> UDPError {
UDPError.swift:57
    static var lastError: UDPError {
UDPError.swift:63
        return UDPError.ClosedSocket(description: "Closed socket")
UDPError.swift:62
    static var closedSocketError: UDPError {
UDPError.swift:68
            throw UDPError.lastError
UDPError.swift:74
            throw UDPError.lastReceiveErrorWithData(data, bytesProcessed: bytesProcessed)
UDPError.swift:79
extension UDPError: CustomStringConvertible {
: ErrorType {
0029        case Unknown
UDPError.swift:59
        return .Unknown(description: lastErrorDescription)
UDPError.swift:82
        case Unknown(let description):
(description: String)
0030        case ConnectionResetByPeer(description: String, data: Data)
0031        case NoBufferSpaceAvailabe(description: String, data: Data)
0032        case OperationTimedOut(description: String, data: Data)
0033        case ClosedSocket
UDPError.swift:63
        return UDPError.ClosedSocket(description: "Closed socket")
UDPError.swift:90
        case ClosedSocket(let description):
(description: String)
0034    
0035        static func lastReceiveErrorWithData(source: Data, bytesProcessed: Int) -> UDPError {
0036            let data = source.prefix(bytesProcessed)
0037            return lastErrorWithData(data)
0038        }
0039    
0040        static func lastErrorWithData(data: Data) -> UDPError {
0041            switch errno {
0042            case ECONNRESET:
0043                return .ConnectionResetByPeer(description: lastErrorDescription, data: data)
0044            case ENOBUFS:
0045                return .NoBufferSpaceAvailabe(description: lastErrorDescription, data: data)
0046            case ETIMEDOUT:
0047                return .OperationTimedOut(description: lastErrorDescription, data: data)
0048            default:
0049                return .Unknown(description: lastErrorDescription)
0050            }
0051        }
0052    
0053        static var lastErrorDescription
UDPError.swift:59
        return .Unknown(description: lastErrorDescription)
: String {
0054            return String.fromCString(strerror(errno))!
0055        }
0056    
0057        static var lastError
UDPError.swift:68
            throw UDPError.lastError
: UDPError {
0058            // TODO: Switch on errno
0059            return .Unknown(description: lastErrorDescription)
0060        }
0061    
0062        static var closedSocketError
UDP.swift:107
            throw UDPError.closedSocketError
: UDPError {
0063            return UDPError.ClosedSocket(description: "Closed socket")
0064        }
0065    
0066        static func assertNoError
UDP.swift:39
        try UDPError.assertNoError()
UDP.swift:63
        try UDPError.assertNoError()
UDP.swift:89
        try UDPError.assertNoError()
() throws {
0067            if errno != 0 {
0068                throw UDPError.lastError
0069            }
0070        }
0071    
0072        static func assertNoReceiveErrorWithData(data: Data, bytesProcessed: Int) throws {
0073            if errno != 0 {
0074                throw UDPError.lastReceiveErrorWithData(data, bytesProcessed: bytesProcessed)
0075            }
0076        }
0077    }
0078    
0079    extension UDPError: CustomStringConvertible {
0080        public var description: String {
0081            switch self {
0082            case Unknown(let description):
0083                return description
0084            case ConnectionResetByPeer(let description, _):
0085                return description
0086            case NoBufferSpaceAvailabe(let description, _):
0087                return description
0088            case OperationTimedOut(let description, _):
0089                return description
0090            case ClosedSocket(let description):
0091                return description
0092            }
0093        }
0094    }