class AsyncFile

package nusys.io

Available on all platforms

This class provides methods for asynchronous operations on files instances. For synchronous operations, see nusys.io.File. To obtain an instance of this class, use the async field of nusys.io.File.

var file = nusys.FileSystem.open("example.txt", "r");
file.async.readFile(contents -> trace(contents.toString()));

All methods here are asynchronous versions of the functions in nusys.io.File. Please see them for a description of the arguments and use of each method.

Any synchronous method that returns no value (Void return type) has an extra callback:Callback<NoData> argument.

Any synchronous method that returns a value has an extra callback:Callback<T> argument, where T is the return type of the synchronous method.

Errors are communicated through the callbacks or in some cases thrown immediately.

Methods

chmod (mode:FilePermissions, callback:Callback<NoData>):Void

chown (uid:Int, gid:Int, callback:Callback<NoData>):Void

close (callback:Callback<NoData>):Void

datasync (callback:Callback<NoData>):Void

readBuffer (buffer:Bytes, offset:Int, length:Int, position:Int, callback:Callback<{bytesRead:Int, buffer:Bytes}>):Void

readFile (callback:Callback<Bytes>):Void

stat (callback:Callback<FileStat>):Void

Available on cross

stat (callback:Callback<Stat>):Void

Available on eval

sync (callback:Callback<NoData>):Void

@:value({ len : 0 })truncate (len:Int = 0, callback:Callback<NoData>):Void

utimes (atime:Date, mtime:Date, callback:Callback<NoData>):Void

writeBuffer (buffer:Bytes, offset:Int, length:Int, position:Int, callback:Callback<{bytesWritten:Int, buffer:Bytes}>):Void

writeString (str:String, ?position:Int, ?encoding:Encoding, callback:Callback<{bytesWritten:Int, buffer:Bytes}>):Void