Package one.nio.os.bpf

Class BpfMap

java.lang.Object

one.nio.os.bpf.Handle

one.nio.os.bpf.BpfObj

one.nio.os.bpf.BpfMap

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Direct Known Subclasses:

BpfMap.SynchronizedBpfMap

public class BpfMap
extends BpfObj
implements java.io.Closeable

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) class	BpfMap.KeysIterator
private static class	BpfMap.SynchronizedBpfMap

Nested classes/interfaces inherited from class one.nio.os.bpf.BpfObj

BpfObj.IdsIterator

Field Summary

Fields

Modifier and Type	Field	Description
static int	ARRAY_KEY_SIZE
static int	CPUS
int	flags
int	keySize
int	maxEntries
int	totalValueSize
MapType	type
int	valueSize

Fields inherited from class one.nio.os.bpf.BpfObj

id, MAX_NAME_LEN, name

Fields inherited from class one.nio.os.bpf.Handle

fdUpdater

Constructor Summary

Constructors

Constructor	Description
BpfMap(MapType type, int id, java.lang.String name, int keySize, int valueSize, int maxEntries, int flags, int fd)

Method Summary

Modifier and Type	Method	Description
static java.nio.ByteBuffer	bytes(byte[] value)
static byte[]	bytes(int i)
static byte[]	bytes(long i)
private void	checkKeyLength(int length)
private void	checkTotalValueLength(int length)
byte[]	get(byte[] key)
boolean	get(byte[] key, byte[] result)
protected boolean	get(byte[] key, byte[] result, int flags)
static java.lang.Iterable<java.lang.Integer>	getAllIds()
static BpfMap	getByFd(int fd)
static BpfMap	getById(int id)
static BpfMap	getPinned(java.lang.String path)
static java.nio.IntBuffer	ints(byte[] value)
java.lang.Iterable<byte[]>	keys()
static java.nio.LongBuffer	longs(byte[] value)
static BpfMap	newMap(MapType type, int keySize, int valueSize, int maxEntries, java.lang.String name, int flags)
static BpfMap	newMapOfMaps(MapType type, int keySize, int maxEntries, java.lang.String name, int flags, BpfMap innerMap)
static BpfMap	newPerfEventArray(java.lang.String name, int flags)
boolean	put(byte[] key, byte[] value)
protected boolean	put(byte[] key, byte[] value, int flags)
boolean	putIfAbsent(byte[] key, byte[] value)
boolean	putIfPresent(byte[] key, byte[] value)
boolean	remove(byte[] key)
private static int	roundUp(int valueSize)
BpfMap	synchronizedMap()

Methods inherited from class one.nio.os.bpf.BpfObj

pin

Methods inherited from class one.nio.os.bpf.Handle

close, fd

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.Closeable

close

Field Detail

CPUS

public static final int CPUS

ARRAY_KEY_SIZE

public static final int ARRAY_KEY_SIZE

See Also:

Constant Field Values

type

public final MapType type

keySize

public final int keySize

valueSize

public final int valueSize

totalValueSize

public final int totalValueSize

maxEntries

public final int maxEntries

flags

public final int flags

Constructor Detail

BpfMap

BpfMap(MapType type,
       int id,
       java.lang.String name,
       int keySize,
       int valueSize,
       int maxEntries,
       int flags,
       int fd)

Method Detail

roundUp

private static int roundUp(int valueSize)

get

public boolean get(byte[] key,
                   byte[] result)
            throws java.io.IOException

Throws:

java.io.IOException

get

protected boolean get(byte[] key,
                      byte[] result,
                      int flags)
               throws java.io.IOException

Throws:

java.io.IOException

get

public byte[] get(byte[] key)
           throws java.io.IOException

Throws:

java.io.IOException

put

public boolean put(byte[] key,
                   byte[] value)
            throws java.io.IOException

Throws:

java.io.IOException

putIfAbsent

public boolean putIfAbsent(byte[] key,
                           byte[] value)
                    throws java.io.IOException

Throws:

java.io.IOException

putIfPresent

public boolean putIfPresent(byte[] key,
                            byte[] value)
                     throws java.io.IOException

Throws:

java.io.IOException

put

protected boolean put(byte[] key,
                      byte[] value,
                      int flags)
               throws java.io.IOException

Throws:

java.io.IOException

remove

public boolean remove(byte[] key)
               throws java.io.IOException

Throws:

java.io.IOException

keys

public java.lang.Iterable<byte[]> keys()

synchronizedMap

public BpfMap synchronizedMap()

getPinned

public static BpfMap getPinned(java.lang.String path)
                        throws java.io.IOException

Throws:

java.io.IOException

getById

public static BpfMap getById(int id)
                      throws java.io.IOException

Throws:

java.io.IOException

getByFd

public static BpfMap getByFd(int fd)
                      throws java.io.IOException

Throws:

java.io.IOException

newMap

public static BpfMap newMap(MapType type,
                            int keySize,
                            int valueSize,
                            int maxEntries,
                            java.lang.String name,
                            int flags)
                     throws java.io.IOException

Throws:

java.io.IOException

newMapOfMaps

public static BpfMap newMapOfMaps(MapType type,
                                  int keySize,
                                  int maxEntries,
                                  java.lang.String name,
                                  int flags,
                                  BpfMap innerMap)
                           throws java.io.IOException

Throws:

java.io.IOException

newPerfEventArray

public static BpfMap newPerfEventArray(java.lang.String name,
                                       int flags)
                                throws java.io.IOException

Throws:

java.io.IOException

checkKeyLength

private void checkKeyLength(int length)

checkTotalValueLength

private void checkTotalValueLength(int length)

getAllIds

public static java.lang.Iterable<java.lang.Integer> getAllIds()

bytes

public static byte[] bytes(int i)

bytes

public static byte[] bytes(long i)

bytes

public static java.nio.ByteBuffer bytes(byte[] value)

ints

public static java.nio.IntBuffer ints(byte[] value)

longs

public static java.nio.LongBuffer longs(byte[] value)