AlignedBuffers (Ignite 2.17.0)

java.lang.Object
- org.apache.ignite.internal.processors.cache.persistence.file.AlignedBuffers

public class AlignedBuffers
extends Object

Utility class for work with aligned buffers.

Constructor Summary

Constructors
Constructor Description

AlignedBuffers()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static ByteBuffer`	`allocate(int fsBlockSize, int size)`	Allocates align memory for use with O_DIRECT and returns native byte buffer.
`static void`	`free(long addr)`	Frees the memory space pointed to by `addr` - address of buffer, which must have been returned by a previous call `allocate(int, int)`.
`static void`	`free(ByteBuffer buf)`	Frees the memory space used by direct buffer, which must have been returned by a previous call `allocate(int, int)`.

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

- Constructor Detail
  - AlignedBuffers
```
public AlignedBuffers()
```
- Method Detail
  - allocate
```
public static ByteBuffer allocate(int fsBlockSize,
                                  int size)
```
    Allocates align memory for use with O_DIRECT and returns native byte buffer.
    
    Parameters:
    
    fsBlockSize - alignment, FS ans OS block size.
    
    size - capacity.
    
    Returns:
    
    byte buffer, to be released by free(ByteBuffer).
  - free
```
public static void free(ByteBuffer buf)
```
    Frees the memory space used by direct buffer, which must have been returned by a previous call allocate(int, int).
    
    Parameters:
    
    buf - direct buffer to free.
  - free
```
public static void free(long addr)
```
    Frees the memory space pointed to by addr - address of buffer, which must have been returned by a previous call allocate(int, int).
    
    Parameters:
    
    addr - direct buffer address to free.