io.github.whippetdb.memory.db

Class CacheManager

java.lang.Object

io.github.whippetdb.memory.db.CacheManager

public class CacheManager
extends java.lang.Object

Manages cached pages. The list is implemented as a linked list, where the entries are the cached pages themselves.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ADDR_SIZE
static int	NEXT_OFF
static long	NULL

Constructor Summary

Constructors

Constructor and Description
CacheManager()

Method Summary

Modifier and Type	Method and Description
static long	allocateBlock(MemDataSpace ms, long cacheAddr, int size, boolean clear)
static LongList	listCache(MemDataSpace ms, long cacheAddr)
static long	numCachedBlocks(MemDataSpace ms, long cacheAddr)
static void	releaseBlock(MemDataSpace ms, long cacheAddr, long addr)
static void	scanCache(MemDataSpace ms, long cacheAddr, java.util.function.LongConsumer consumer)

Methods inherited from class java.lang.Object

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

Field Detail

ADDR_SIZE

public static final int ADDR_SIZE

See Also:

Constant Field Values

NULL

public static final long NULL

See Also:

Constant Field Values

NEXT_OFF

public static final int NEXT_OFF

See Also:

Constant Field Values

Constructor Detail

CacheManager

public CacheManager()

Method Detail

allocateBlock

public static long allocateBlock(MemDataSpace ms,
                                 long cacheAddr,
                                 int size,
                                 boolean clear)

releaseBlock

public static void releaseBlock(MemDataSpace ms,
                                long cacheAddr,
                                long addr)

numCachedBlocks

public static long numCachedBlocks(MemDataSpace ms,
                                   long cacheAddr)

scanCache

public static void scanCache(MemDataSpace ms,
                             long cacheAddr,
                             java.util.function.LongConsumer consumer)

listCache

public static LongList listCache(MemDataSpace ms,
                                 long cacheAddr)