0001    // File.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    #if os(Linux)
0026    	import Glibc
0027    #else
0028    	import Darwin.C
0029    #endif
0030    
0031    public class File {
0032    	
0033    	public enum Error
File.swift:52
		guard fp != nil else { throw Error.OpenError(String.fromCString(strerror(errno)) ?? "") }
File.swift:61
		guard count == data.length else { throw Error.WriteError(String.fromCString(strerror(ferror(fp))) ?? "") }
File.swift:71
			guard ferror(fp) == 0 else { throw Error.ReadError(String.fromCString(strerror(ferror(fp))) ?? "") }
: ErrorType {
0034    		case OpenError
File.swift:52
		guard fp != nil else { throw Error.OpenError(String.fromCString(strerror(errno)) ?? "") }
(String)
0035    		case ReadError
File.swift:71
			guard ferror(fp) == 0 else { throw Error.ReadError(String.fromCString(strerror(ferror(fp))) ?? "") }
(String)
0036    		case WriteError
File.swift:61
		guard count == data.length else { throw Error.WriteError(String.fromCString(strerror(ferror(fp))) ?? "") }
(String)
0037    	}
0038    	
0039    	public enum Mode
File.swift:50
	public init(path: String, mode: Mode = .ReadUpdate) throws {
: String {
0040    		case Read = "r"				// Open file for reading
0041    		case Write = "w"			// Truncate to zero length or create file for writing
0042    		case Append = "a"			// Append; open or create file for writing at end-of-file
0043    		case ReadUpdate
File.swift:50
	public init(path: String, mode: Mode = .ReadUpdate) throws {
 = "r+"		// Open file for update (reading and writing)
0044    		case WriteUpdate = "w+"		// Truncate to zero length or create file for update
0045    		case AppendUpdate = "a+"	// Append; open or create file for update, writing at end-of-file
0046    	}
0047    	
0048    	private let fp
File.swift:51
		fp = fopen(path, mode.rawValue)
File.swift:52
		guard fp != nil else { throw Error.OpenError(String.fromCString(strerror(errno)) ?? "") }
File.swift:60
		let count = fwrite(data.uBytes, 1, data.length, fp)
File.swift:61
		guard count == data.length else { throw Error.WriteError(String.fromCString(strerror(ferror(fp))) ?? "") }
File.swift:70
			let count = fread(buffer, 1, min(remaining, 1024), fp)
File.swift:71
			guard ferror(fp) == 0 else { throw Error.ReadError(String.fromCString(strerror(ferror(fp))) ?? "") }
File.swift:71
			guard ferror(fp) == 0 else { throw Error.ReadError(String.fromCString(strerror(ferror(fp))) ?? "") }
File.swift:75
		} while remaining > 0 && feof(fp) == 0
File.swift:80
		if fp != nil {
File.swift:81
			fclose(fp)
: UnsafeMutablePointer<FILE>
0049    	
0050    	public init(path: String, mode: Mode = .ReadUpdate) throws {
0051    		fp = fopen(path, mode.rawValue)
0052    		guard fp != nil else { throw Error.OpenError(String.fromCString(strerror(errno)) ?? "") }
0053    	}
0054    	
0055    	deinit {
0056    		close()
0057    	}
0058    	
0059    	public func write(data: Data) throws {
0060    		let count = fwrite(data.uBytes, 1, data.length, fp)
0061    		guard count == data.length else { throw Error.WriteError(String.fromCString(strerror(ferror(fp))) ?? "") }
0062    	}
0063    	
0064    	public func read(length length: Int = Int.max) throws -> Data {
0065    		var bytes: [UInt8] = []
0066    		var remaining = length
0067    		let buffer = UnsafeMutablePointer<UInt8>.alloc(1024)
0068    		defer { buffer.dealloc(1024) }
0069    		repeat {
0070    			let count = fread(buffer, 1, min(remaining, 1024), fp)
0071    			guard ferror(fp) == 0 else { throw Error.ReadError(String.fromCString(strerror(ferror(fp))) ?? "") }
0072    			guard count > 0 else { continue }
0073    			bytes += Array(UnsafeBufferPointer(start: buffer, count: count).generate()).prefix(count)
0074    			remaining -= count
0075    		} while remaining > 0 && feof(fp) == 0
0076    		return Data(uBytes: bytes)
0077    	}
0078    	
0079    	public func close
File.swift:56
		close()
() {
0080    		if fp != nil {
0081    			fclose(fp)
0082    		}
0083    	}
0084    	
0085    }
0086