DSS_ChunkInfo

dss

1998 12-06

CLASS

DSS_ChunkInfo - C++ representation of a chunk in DSS

SYNOPSIS

This class is holds information about a copy of a chunk in DSS. It is simply a data structure with accessor methods.

CONSTRUCTOR

DSS_ChunkInfo()

MEMBER FUNCTIONS

char *GetName()
Returns the chunk name.

char *GetSpaceName()
Returns the name of the space that the chunk is in.

NL_HOST_INET_ADDR GetHostAddress()
Return the address of the host on which this copy of the chunk exists.

long GetIsAlpha()
Return TRUE if the chunk copy is the alpha copy. Otherwise, return FALSE.

long GetState()
Return one of the following states:

DSS_CHUNK_VALID The chunk is a valid copy.

DSS_CHUNK_INVALID The chunk is an invalid copy.

DSS_CHUNK_WAITING The chunk is waiting to be written to.

DSS_CHUNK_CREATING The chunk is being created.

long GetMemoryType()

DSS_MEMORY_SHARED The chunk data is stored in shared memory.

DSS_MEMORY_HEAP The chunk data is stored in the dss daemon heap.

DSS_MEMORY_FILE The chunk data is stored in a file.

DSS_MEMORY_SAME The chunk data location is unspecified and does not yet exist. This state will usually not exist because chunks are by default already set to DSS_MEMORY_HEAP.

unsigned long GetSize()
Return the size of the chunk.

DSS_CHUNK_VALID	The chunk is a valid copy.
DSS_CHUNK_INVALID	The chunk is an invalid copy.
DSS_CHUNK_WAITING	The chunk is waiting to be written to.
DSS_CHUNK_CREATING	The chunk is being created.

DSS_MEMORY_SHARED	The chunk data is stored in shared memory.
DSS_MEMORY_HEAP	The chunk data is stored in the dss daemon heap.
DSS_MEMORY_FILE	The chunk data is stored in a file.
DSS_MEMORY_SAME	The chunk data location is unspecified and does not yet exist. This state will usually not exist because chunks are by default already set to DSS_MEMORY_HEAP.