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Swap the directionality of the links in Cell.

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This commit is contained in:
Marcin Olawski 2015-02-08 22:38:56 +01:00
parent 0537cb4775
commit a5ff62fbad
1 changed files with 34 additions and 31 deletions
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65
classpath/java/io/ByteArrayOutputStream.java
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@ -13,7 +13,8 @@ package java.io;
public class ByteArrayOutputStream extends OutputStream {
private static final int BufferSize = 32;
private Cell chain;
private Cell firstCell;
private Cell curCell;
private int length;
private byte[] buffer;
private int position;
@ -25,7 +26,8 @@ public class ByteArrayOutputStream extends OutputStream {
}
public void reset() {
chain = null;
firstCell = null;
curCell = null;
length = 0;
buffer = null;
position = 0;
@ -69,11 +71,21 @@ public class ByteArrayOutputStream extends OutputStream {
position += length;
} else {
flushBuffer();
chain = new Cell(copy(b, offset, length), 0, length, chain);
chainCell( new Cell(copy(b, offset, length), 0, length) );
}
this.length += length;
}
private void chainCell(Cell cell){
if (curCell == null){
firstCell = cell;
curCell = cell;
}else{
curCell.next = cell;
curCell = cell;
}
}
private void flushBuffer() {
if (position > 0) {
@ -81,7 +93,8 @@ public class ByteArrayOutputStream extends OutputStream {
int p = position;
buffer = null;
position = 0;
chain = new Cell(b, 0, p, chain);
chainCell( new Cell(b, 0, p) );
}
}
@ -89,35 +102,26 @@ public class ByteArrayOutputStream extends OutputStream {
flushBuffer();
byte[] array = new byte[length];
int index = length;
for (Cell c = chain; c != null; c = c.next) {
int start = index - c.length;
System.arraycopy(c.array, c.offset, array, start, c.length);
index = start;
int pos = 0;
for (Cell c = firstCell; c != null; c = c.next) {
System.arraycopy(c.array, c.offset, array, pos, c.length);
pos += c.length;
}
return array;
}
public synchronized void writeTo(OutputStream out) throws IOException {
if (length==0)
return;
flushBuffer();
int cnt = 0;
for (Cell c = chain; c != null; c = c.next) {
cnt++;
}
Cell[] cellArray = new Cell[cnt];
for (Cell c = chain; c != null; c = c.next) {
cellArray[--cnt] = c;
}
for (Cell c : cellArray){
out.write(c.array, c.offset, c.length);
}
if (length==0) return;
if (out == null){
throw new NullPointerException();
}
flushBuffer();
for (Cell c = firstCell; c != null; c = c.next) {
out.write(c.array, c.offset, c.length);
}
}
@Override
@ -133,13 +137,12 @@ public class ByteArrayOutputStream extends OutputStream {
public byte[] array;
public int offset;
public int length;
public Cell next;
public Cell next = null;
public Cell(byte[] array, int offset, int length, Cell next) {
public Cell(byte[] array, int offset, int length) {
this.array = array;
this.offset = offset;
this.length = length;
this.next = next;
}
}
}