org.apache.tomcat.jni

Class Buffer

java.lang.Object

org.apache.tomcat.jni.Buffer

public class Buffer
extends java.lang.Object

Provides utilities related to the use of directly allocated ByteBuffer instances with native code.

Constructor Summary

Constructors

Constructor and Description
Buffer()

Method Summary

Modifier and Type	Method and Description
static long	address(java.nio.ByteBuffer buf) Returns the memory address of the ByteBuffer.
static java.nio.ByteBuffer	calloc(int num, int size) Deprecated. Unused. Will be removed in Tomcat 10.1
static java.nio.ByteBuffer	create(long mem, int size) Deprecated. Unused. Will be removed in Tomcat 10.1
static void	free(java.nio.ByteBuffer buf) Deprecated. Unused. Will be removed in Tomcat 10.1
static java.nio.ByteBuffer	malloc(int size) Deprecated. Unused. Will be removed in Tomcat 10.1
static java.nio.ByteBuffer	palloc(long p, int size) Deprecated. Unused. Will be removed in Tomcat 10.1
static java.nio.ByteBuffer	pcalloc(long p, int size) Deprecated. Unused. Will be removed in Tomcat 10.1
static long	size(java.nio.ByteBuffer buf) Deprecated. Unused. Will be removed in Tomcat 10.1

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Buffer

public Buffer()

Method Detail

malloc

@Deprecated
public static java.nio.ByteBuffer malloc(int size)

Deprecated. Unused. Will be removed in Tomcat 10.1

Allocate a new ByteBuffer from memory

Parameters:

size - The amount of memory to allocate

Returns:

The ByteBuffer with allocated memory

calloc

@Deprecated
public static java.nio.ByteBuffer calloc(int num,
                                                     int size)

Deprecated. Unused. Will be removed in Tomcat 10.1

Allocate a new ByteBuffer from memory and set all of the memory to 0

Parameters:

num - Number of elements.

size - Length in bytes of each element.

Returns:

The ByteBuffer with allocated memory

palloc

@Deprecated
public static java.nio.ByteBuffer palloc(long p,
                                                     int size)

Deprecated. Unused. Will be removed in Tomcat 10.1

Allocate a new ByteBuffer from a pool

Parameters:

p - The pool to allocate from

size - The amount of memory to allocate

Returns:

The ByteBuffer with allocated memory

pcalloc

@Deprecated
public static java.nio.ByteBuffer pcalloc(long p,
                                                      int size)

Deprecated. Unused. Will be removed in Tomcat 10.1

Allocate a new ByteBuffer from a pool and set all of the memory to 0

Parameters:

p - The pool to allocate from

size - The amount of memory to allocate

Returns:

The ByteBuffer with allocated memory

create

@Deprecated
public static java.nio.ByteBuffer create(long mem,
                                                     int size)

Deprecated. Unused. Will be removed in Tomcat 10.1

Allocate a new ByteBuffer from already allocated memory.
Allocated memory must be provided from call to the Stdlib.alloc or Stdlib.calloc methods.

Parameters:

mem - The memory to use

size - The amount of memory to use

Returns:

The ByteBuffer with attached memory

free

@Deprecated
public static void free(java.nio.ByteBuffer buf)

Deprecated. Unused. Will be removed in Tomcat 10.1

Deallocates or frees a memory block used by ByteBuffer
Warning : Call this method only on ByteBuffers that were created by calling Buffer.alloc or Buffer.calloc.

Parameters:

buf - Previously allocated ByteBuffer to be freed.

address

public static long address(java.nio.ByteBuffer buf)

Returns the memory address of the ByteBuffer.

Parameters:

buf - Previously allocated ByteBuffer.

Returns:

the memory address

size

@Deprecated
public static long size(java.nio.ByteBuffer buf)

Deprecated. Unused. Will be removed in Tomcat 10.1

Returns the allocated memory size of the ByteBuffer.

Parameters:

buf - Previously allocated ByteBuffer.

Returns:

the size