Index: sdk/lib/io/buffer_list.dart |
diff --git a/sdk/lib/io/buffer_list.dart b/sdk/lib/io/buffer_list.dart |
deleted file mode 100644 |
index f263e04cf6b712753fde54f9e55dcc010b35c5dd..0000000000000000000000000000000000000000 |
--- a/sdk/lib/io/buffer_list.dart |
+++ /dev/null |
@@ -1,100 +0,0 @@ |
-// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
-// for details. All rights reserved. Use of this source code is governed by a |
-// BSD-style license that can be found in the LICENSE file. |
- |
-part of dart.io; |
- |
-/** |
- * Utility class that can fast concatenate [List<int>]s of bytes. Use |
- * [readBytes] to get the final buffer. |
- */ |
-class _BufferList { |
- static const int _INIT_SIZE = 1 * 1024; |
- |
- _BufferList() { |
- clear(); |
- } |
- |
- int pow2roundup(int x) { |
- --x; |
- x |= x >> 1; |
- x |= x >> 2; |
- x |= x >> 4; |
- x |= x >> 8; |
- x |= x >> 16; |
- return x + 1; |
- } |
- |
- /** |
- * Adds a new buffer to the list. |
- */ |
- void add(List<int> buffer) { |
- int bufferLength = buffer.length; |
- int required = _length + bufferLength; |
- if (_buffer == null) { |
- int size = pow2roundup(required); |
- if (size < _INIT_SIZE) size = _INIT_SIZE; |
- _buffer = new Uint8List(size); |
- } else if (_buffer.length < required) { |
- // This will give is a list in the range of 2-4 times larger than |
- // required. |
- int size = pow2roundup(required) * 2; |
- Uint8List newBuffer = new Uint8List(size); |
- newBuffer.setRange(0, _buffer.length, _buffer); |
- _buffer = newBuffer; |
- } |
- assert(_buffer.length >= required); |
- if (buffer is Uint8List) { |
- _buffer.setRange(_length, required, buffer); |
- } else { |
- for (int i = 0; i < bufferLength; i++) { |
- _buffer[_length + i] = buffer[i]; |
- } |
- } |
- _length = required; |
- } |
- |
- /** |
- * Same as [add]. |
- */ |
- void write(List<int> buffer) { |
- add(buffer); |
- } |
- |
- /** |
- * Read all the bytes from the buffer list. If it's empty, an empty list |
- * is returned. A call to [readBytes] will clear the buffer. |
- */ |
- List<int> readBytes() { |
- if (_buffer == null) return new Uint8List(0); |
- var buffer = new Uint8List.view(_buffer.buffer, 0, _length); |
- clear(); |
- return buffer; |
- } |
- |
- /** |
- * Returns the total number of bytes in the buffer. |
- */ |
- int get length => _length; |
- |
- /** |
- * Returns whether the buffer list is empty. |
- */ |
- bool get isEmpty => _length == 0; |
- |
- /** |
- * Returns whether the buffer list is not empty. |
- */ |
- bool get isNotEmpty => !isEmpty; |
- |
- /** |
- * Clears the content of the buffer list. |
- */ |
- void clear() { |
- _length = 0; |
- _buffer = null; |
- } |
- |
- int _length; // Total number of bytes in the buffer. |
- Uint8List _buffer; // Internal buffer. |
-} |