95 lines
2.5 KiB
Haxe
95 lines
2.5 KiB
Haxe
/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package cs.io;
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import haxe.Int64;
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import haxe.io.Bytes;
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import haxe.io.Eof;
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import haxe.io.Error;
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import haxe.io.Input;
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class NativeInput extends Input {
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public var canSeek(get, never):Bool;
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var stream:cs.system.io.Stream;
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var _eof:Bool;
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public function new(stream) {
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this.stream = stream;
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this._eof = false;
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if (!stream.CanRead)
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throw "Write-only stream";
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}
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override public function readByte():Int {
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var ret = stream.ReadByte();
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if (ret == -1) {
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_eof = true;
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throw new Eof();
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}
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return ret;
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}
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override public function readBytes(s:Bytes, pos:Int, len:Int):Int {
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if (pos < 0 || len < 0 || pos + len > s.length)
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throw Error.OutsideBounds;
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var ret = 0;
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var data = s.getData();
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try {
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ret = stream.Read(data, pos, len);
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} catch (e: Dynamic) {}
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if (ret == 0) {
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_eof = true;
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throw new Eof();
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}
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return ret;
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}
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override public function close():Void {
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stream.Close();
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}
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private inline function get_canSeek():Bool {
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return stream.CanSeek;
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}
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public function seek(p:Int, pos:sys.io.FileSeek):Void {
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_eof = false;
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var pos = switch (pos) {
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case SeekBegin: cs.system.io.SeekOrigin.Begin;
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case SeekCur: cs.system.io.SeekOrigin.Current;
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case SeekEnd: cs.system.io.SeekOrigin.End;
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};
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stream.Seek(cast(p, Int64), pos);
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}
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public function tell():Int {
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return cast(stream.Position, Int);
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}
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public inline function eof():Bool {
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return _eof;
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}
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}
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