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Example of using opendir/readdir/closedir with Swift
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| import Foundation | |
| // Get current working directory | |
| var wdbuf: [Int8] = Array(count: Int(MAXNAMLEN), repeatedValue: 0) | |
| let workingDirectory = getcwd(&wdbuf, UInt(MAXNAMLEN)) | |
| println("Working directory: \(String.fromCString(workingDirectory)!)") | |
| println("\nContents:") | |
| // Open the directory | |
| let dir = opendir(workingDirectory) | |
| if dir != nil { | |
| // Use readdir to get each element | |
| var entry = readdir(dir) | |
| while entry != nil { | |
| let d_namlen = entry.memory.d_namlen | |
| let d_name = entry.memory.d_name | |
| // dirent.d_name is defined as a tuple with | |
| // MAXNAMLEN elements. We want to convert | |
| // that to a null-terminated C string. The | |
| // only way to iterate over tuple elements | |
| // in Swift is via reflection. | |
| // | |
| // Credit: dankogi at http://stackoverflow.com/questions/24299045/any-way-to-iterate-a-tuple-in-swift | |
| var nameBuf: [CChar] = Array() | |
| let mirror = reflect(d_name) | |
| for i in 0..<d_namlen { | |
| let (_, elem) = mirror[Int(i)] | |
| nameBuf.append(elem.value as Int8) | |
| } | |
| // Null-terminate it and convert to a String for display | |
| nameBuf.append(0) | |
| if let name = String.fromCString(nameBuf) { | |
| println("- \(name)") | |
| } | |
| entry = readdir(dir) | |
| } | |
| closedir(dir) | |
| } |
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