```
public class TpmBuffer
extends Object
```

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class TpmBuffer.SizedStructInfo
Information about the TPM data structure being currently unmarshaled.

Constructor Summary

Constructors
Constructor	Description
`TpmBuffer()`	Constructs output marshling buffer with the default capacity of 4096 bytes
`TpmBuffer(byte[] buf)`	Constructs an initialized input marshling buffer
`TpmBuffer(int capacity)`	Constructs an output marshling buffer with the given capacity

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`byte[]`	`buffer()`
`void`	`clear()`
`<T extends TpmMarshaller> T`	`createObj(Class<T> type)`
`<T extends TpmMarshaller> T`	`createSizedObj(Class<T> type)`
`int`	`curPos()`
`void`	`curPos(int newPos)`	Sets current read/write position in the the backing byte buffer
`int`	`getCurStuctRemainingSize()`
`boolean`	`isOk()`
`byte`	`readByte()`	Reads a byte from this buffer.
`byte[]`	`readByteBuf(int size)`	Unmarshalls a byte buffer of the given size (no marshaled length prefix).
`int`	`readInt()`	Unmarshals a 32-bit integer from this buffer.
`long`	`readInt64()`	Unmarshals a 64-bit integer from this buffer.
`long`	`readNum(int len)`
`<T extends TpmMarshaller> T[]`	`readObjArr(Class<T> type)`
`int`	`readShort()`	Unmarshals a 16-bit integer from this buffer.
`byte[]`	`readSizedByteBuf()`
`byte[]`	`readSizedByteBuf(int sizeLen)`	Unmarshals a byte buffer from its size-prefixed representation in the TPM wire format.
`void`	`reset()`
`int`	`size()`
`byte[]`	`trim()`	Shrinks the backing byte buffer so that it ends at the current position
`void`	`writeByte(byte val)`	Writes the given 8-bit integer to this buffer
`<T extends TpmEnum<T>> void`	`writeByte(TpmEnum<T> val)`
`void`	`writeByteBuf(byte[] data)`	Marshalls the given byte buffer with no length prefix.
`void`	`writeInt(int val)`	Marshals the given 32-bit integer to this buffer.
`<T extends TpmEnum<T>> void`	`writeInt(TpmEnum<T> val)`
`void`	`writeInt64(long val)`	Marshals the given 64-bit integer to this buffer.
`void`	`writeNum(long val, int len)`
`void`	`writeNumAtPos(int val, int pos)`
`void`	`writeNumAtPos(int val, int pos, int len)`
`void`	`writeObjArr(TpmMarshaller[] arr)`
`void`	`writeShort(int val)`	Marshals the given 16-bit integer to this buffer.
`<T extends TpmEnum<T>> void`	`writeShort(TpmEnum<T> val)`
`void`	`writeSizedByteBuf(byte[] data)`
`void`	`writeSizedByteBuf(byte[] data, int sizeLen)`	Marshalls the given byte buffer with a length prefix.
`<T extends TpmMarshaller> void`	`writeSizedObj(T obj)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TpmBuffer
```
public TpmBuffer()
```
    Constructs output marshling buffer with the default capacity of 4096 bytes
  - TpmBuffer
```
public TpmBuffer(int capacity)
```
    Constructs an output marshling buffer with the given capacity
    
    Parameters:
    
    capacity - Capacity in bytes
  - TpmBuffer
```
public TpmBuffer(byte[] buf)
```
    Constructs an initialized input marshling buffer
    
    Parameters:
    
    buf - A marshaled representation to initialize the new input buffer with
- Method Detail
  - clear
```
public void clear()
```
  - reset
```
public void reset()
```
  - buffer
```
public byte[] buffer()
```
    Returns:
    
    Reference to the backing byte buffer
  - size
```
public int size()
```
    Returns:
    
    Size of the backing byte buffer. Note that during marshaling this size normally exceeds the amount of actually stored data until trim() is invoked.
  - curPos
```
public int curPos()
```
    Returns:
    
    Current read/write position in the the backing byte buffer
  - curPos
```
public void curPos(int newPos)
```
    Sets current read/write position in the the backing byte buffer
    
    Parameters:
    
    newPos - New read/write position
  - isOk
```
public boolean isOk()
```
    Returns:
    
    true unless a previous read/write operation caused under/overflow correspondingly.
  - trim
```
public byte[] trim()
```
    Shrinks the backing byte buffer so that it ends at the current position
    
    Returns:
    
    Reference to the shrunk backing byte array
  - getCurStuctRemainingSize
```
public int getCurStuctRemainingSize()
```
  - writeNum
```
public void writeNum(long val,
                     int len)
```
  - readNum
```
public long readNum(int len)
```
  - writeNumAtPos
```
public void writeNumAtPos(int val,
                          int pos,
                          int len)
```
  - writeNumAtPos
```
public void writeNumAtPos(int val,
                          int pos)
```
  - writeByte
```
public void writeByte(byte val)
```
    Writes the given 8-bit integer to this buffer
    
    Parameters:
    
    val - 8-bit integer value to marshal
  - writeByte
```
public <T extends TpmEnum<T>> void writeByte(TpmEnum<T> val)
```
  - writeShort
```
public void writeShort(int val)
```
    Marshals the given 16-bit integer to this buffer.
    
    Parameters:
    
    val - 16-bit integer value to marshal
  - writeShort
```
public <T extends TpmEnum<T>> void writeShort(TpmEnum<T> val)
```
  - writeInt
```
public void writeInt(int val)
```
    Marshals the given 32-bit integer to this buffer.
    
    Parameters:
    
    val - 32-bit integer value to marshal
  - writeInt
```
public <T extends TpmEnum<T>> void writeInt(TpmEnum<T> val)
```
  - writeInt64
```
public void writeInt64(long val)
```
    Marshals the given 64-bit integer to this buffer.
    
    Parameters:
    
    val - 64-bit integer value to marshal
  - readByte
```
public byte readByte()
```
    Reads a byte from this buffer.
    
    Returns:
    
    The byte read
  - readShort
```
public int readShort()
```
    Unmarshals a 16-bit integer from this buffer.
    
    Returns:
    
    Unmarshaled 16-bit integer (as 32-bit int because of Java's abysmal unsigned values handling)
  - readInt
```
public int readInt()
```
    Unmarshals a 32-bit integer from this buffer.
    
    Returns:
    
    Unmarshaled 32-bit integer
  - readInt64
```
public long readInt64()
```
    Unmarshals a 64-bit integer from this buffer.
    
    Returns:
    
    Unmarshaled 64-bit integer
  - writeByteBuf
```
public void writeByteBuf(byte[] data)
```
    Marshalls the given byte buffer with no length prefix.
    
    Parameters:
    
    data - Byte buffer to marshal
  - readByteBuf
```
public byte[] readByteBuf(int size)
```
    Unmarshalls a byte buffer of the given size (no marshaled length prefix).
    
    Parameters:
    
    size - Size of the byte buffer to unmarshal
    
    Returns:
    
    Unmarshaled byte buffer
  - writeSizedByteBuf
```
public void writeSizedByteBuf(byte[] data,
                              int sizeLen)
```
    Marshalls the given byte buffer with a length prefix.
    
    Parameters:
    
    data - Byte buffer to marshal
    
    sizeLen - Length of the size prefix in bytes
  - writeSizedByteBuf
```
public void writeSizedByteBuf(byte[] data)
```
  - readSizedByteBuf
```
public byte[] readSizedByteBuf(int sizeLen)
```
    Unmarshals a byte buffer from its size-prefixed representation in the TPM wire format.
    
    Parameters:
    
    sizeLen - Length of the size prefix in bytes
    
    Returns:
    
    Unmarshaled byte buffer
  - readSizedByteBuf
```
public byte[] readSizedByteBuf()
```
  - createObj
```
public <T extends TpmMarshaller> T createObj(Class<T> type)
```
  - writeSizedObj
```
public <T extends TpmMarshaller> void writeSizedObj(T obj)
```
  - createSizedObj
```
public <T extends TpmMarshaller> T createSizedObj(Class<T> type)
```
  - writeObjArr
```
public void writeObjArr(TpmMarshaller[] arr)
```
  - readObjArr
```
public <T extends TpmMarshaller> T[] readObjArr(Class<T> type)
```

Class TpmBuffer

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

TpmBuffer

TpmBuffer

TpmBuffer

Method Detail

clear

reset

buffer

size

curPos

curPos

isOk

trim

getCurStuctRemainingSize

writeNum

readNum

writeNumAtPos

writeNumAtPos

writeByte

writeByte

writeShort

writeShort

writeInt

writeInt

writeInt64

readByte

readShort

readInt

readInt64

writeByteBuf

readByteBuf

writeSizedByteBuf

writeSizedByteBuf

readSizedByteBuf

readSizedByteBuf

createObj

writeSizedObj

createSizedObj

writeObjArr

readObjArr