private void readUtf8_slow(int charCount, int charIndex) {
char[] chars = this.chars;
byte[] buffer = this.buffer;
while (charIndex < charCount) {
if (position == limit) require(1);
int b = buffer[position++] & 0xFF;
switch (b >> 4) {
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
chars[charIndex] = (char) b;
break;
case 12:
case 13:
if (position == limit) require(1);
chars[charIndex] = (char) ((b & 0x1F) << 6 | buffer[position++] & 0x3F);
break;
case 14:
require(2);
chars[charIndex] =
(char)
((b & 0x0F) << 12 | (buffer[position++] & 0x3F) << 6 | buffer[position++] & 0x3F);
break;
}
charIndex++;
}
}
private int readInt_slow(boolean optimizePositive) {
// The buffer is guaranteed to have at least 1 byte.
int b = buffer[position++];
int result = b & 0x7F;
if ((b & 0x80) != 0) {
require(1);
byte[] buffer = this.buffer;
b = buffer[position++];
result |= (b & 0x7F) << 7;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (b & 0x7F) << 14;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (b & 0x7F) << 21;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (b & 0x7F) << 28;
}
}
}
}
return optimizePositive ? result : ((result >>> 1) ^ -(result & 1));
}
private int readUtf8Length_slow(int b) {
int result = b & 0x3F; // Mask all but first 6 bits.
if ((b & 0x40) != 0) { // Bit 7 means another byte, bit 8 means UTF8.
require(1);
byte[] buffer = this.buffer;
b = buffer[position++];
result |= (b & 0x7F) << 6;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (b & 0x7F) << 13;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (b & 0x7F) << 20;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (b & 0x7F) << 27;
}
}
}
}
return result;
}
private String readAscii_slow() {
position--; // Re-read the first byte.
// Copy chars currently in buffer.
int charCount = limit - position;
if (charCount > chars.length) chars = new char[charCount * 2];
char[] chars = this.chars;
byte[] buffer = this.buffer;
for (int i = position, ii = 0, n = limit; i < n; i++, ii++) chars[ii] = (char) buffer[i];
position = limit;
// Copy additional chars one by one.
while (true) {
require(1);
int b = buffer[position++];
if (charCount == chars.length) {
char[] newChars = new char[charCount * 2];
System.arraycopy(chars, 0, newChars, 0, charCount);
chars = newChars;
this.chars = newChars;
}
if ((b & 0x80) == 0x80) {
chars[charCount++] = (char) (b & 0x7F);
break;
}
chars[charCount++] = (char) b;
}
return new String(chars, 0, charCount);
}
/** Reads a 4 byte int. */
public int readInt() throws KryoException {
require(4);
byte[] buffer = this.buffer;
int position = this.position;
this.position = position + 4;
return (buffer[position] & 0xFF) << 24 //
| (buffer[position + 1] & 0xFF) << 16 //
| (buffer[position + 2] & 0xFF) << 8 //
| buffer[position + 3] & 0xFF;
}
/** Discards the specified number of bytes. */
public void skip(int count) throws KryoException {
int skipCount = Math.min(limit - position, count);
while (true) {
position += skipCount;
count -= skipCount;
if (count == 0) break;
skipCount = Math.min(count, capacity);
require(skipCount);
}
}
/** Reads an 8 byte long. */
public long readLong() throws KryoException {
require(8);
byte[] buffer = this.buffer;
return (long) buffer[position++] << 56 //
| (long) (buffer[position++] & 0xFF) << 48 //
| (long) (buffer[position++] & 0xFF) << 40 //
| (long) (buffer[position++] & 0xFF) << 32 //
| (long) (buffer[position++] & 0xFF) << 24 //
| (buffer[position++] & 0xFF) << 16 //
| (buffer[position++] & 0xFF) << 8 //
| buffer[position++] & 0xFF;
}
/** Reads count bytes and writes them to the specified byte[], starting at offset. */
public void readBytes(byte[] bytes, int offset, int count) throws KryoException {
if (bytes == null) throw new IllegalArgumentException("bytes cannot be null.");
int copyCount = Math.min(limit - position, count);
while (true) {
System.arraycopy(buffer, position, bytes, offset, copyCount);
position += copyCount;
count -= copyCount;
if (count == 0) break;
offset += copyCount;
copyCount = Math.min(count, capacity);
require(copyCount);
}
}
private long readLong_slow(boolean optimizePositive) {
// The buffer is guaranteed to have at least 1 byte.
int b = buffer[position++];
long result = b & 0x7F;
if ((b & 0x80) != 0) {
require(1);
byte[] buffer = this.buffer;
b = buffer[position++];
result |= (b & 0x7F) << 7;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (b & 0x7F) << 14;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (b & 0x7F) << 21;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (long) (b & 0x7F) << 28;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (long) (b & 0x7F) << 35;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (long) (b & 0x7F) << 42;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (long) (b & 0x7F) << 49;
if ((b & 0x80) != 0) {
require(1);
b = buffer[position++];
result |= (long) b << 56;
}
}
}
}
}
}
}
}
if (!optimizePositive) result = (result >>> 1) ^ -(result & 1);
return result;
}
/** Reads a 2 byte char. */
public char readChar() throws KryoException {
require(2);
return (char) (((buffer[position++] & 0xFF) << 8) | (buffer[position++] & 0xFF));
}
/** Reads a 1 byte boolean. */
public boolean readBoolean() throws KryoException {
require(1);
return buffer[position++] == 1;
}
/** Reads a 2 byte short as an int from 0 to 65535. */
public int readShortUnsigned() throws KryoException {
require(2);
return ((buffer[position++] & 0xFF) << 8) | (buffer[position++] & 0xFF);
}
/** Reads a 2 byte short. */
public short readShort() throws KryoException {
require(2);
return (short) (((buffer[position++] & 0xFF) << 8) | (buffer[position++] & 0xFF));
}
/** Reads a byte as an int from 0 to 255. */
public int readByteUnsigned() throws KryoException {
require(1);
return buffer[position++] & 0xFF;
}
/** Reads a single byte. */
public byte readByte() throws KryoException {
require(1);
return buffer[position++];
}
