block.h File Reference

#include "uuid.h"

Go to the source code of this file.

Classes
struct	Block
	Associates a DNode's connection data with an INode's data and the data on disk at cid. More...

Macros
#define	BLOCK_TABLE   "data/block.bin"

Functions
	DefList (Block) Buffer Block_serialize(Block block)
	Serialize a Block into a Buffer.
Block	Block_deserialize (Buffer buffer)
	Deserialize a Buffer into a block.
Buffer	ListBlock_serialize (ListBlock list)
	Serialize a List of Block's into a Buffer.
ListBlock	ListBlock_deserialize (Buffer buf)
	Deserialize a Buffer into a List of Block's.
void	insert_into_block (UUID *fid, UUID *nid, UUID *cid, size_t *seq)
	INSERT into the Block table.
ListBlock	select_from_block (UUID *bid, UUID *fid, UUID *nid, UUID *cid, size_t *seq)
	SELECT from the Block table.
ListBlock	Block_get_db (void)
	Get the Block table from the database.
void	Block_set_db (ListBlock blocks)
	Write the database with the List of Block's.
void	print_block (Block block)
	Print a Block's data as a tuple.

Macro Definition Documentation

BLOCK_TABLE

#define BLOCK_TABLE   "data/block.bin"

Function Documentation

Block_deserialize()

Block Block_deserialize

(

Buffer

buffer

)

Deserialize a Buffer into a block.

Caller must free memory in Block.cid.

Parameters

buffer

The Buffer you want to deserialize

Returns

The Block that the Buffer represents

Block_get_db()

ListBlock Block_get_db

(

void

)

Get the Block table from the database.

Returns

a List of Block's

Block_set_db()

void Block_set_db

(

ListBlock

blocks

)

Write the database with the List of Block's.

Parameters

blocks

the List of Block's that you want to overwrite the database with

DefList()

DefList

(

Block

)

Serialize a Block into a Buffer.

Caller must free memory in Buffer.buf.

Parameters

block

the Block you want to serialize

Returns

the Buffer that the Block represents

insert_into_block()

void insert_into_block	(	UUID *	fid,
		UUID *	nid,
		UUID *	cid,
		size_t *	seq )

INSERT into the Block table.

Parameters

fid	UUID of file's INode or NULL
nid	UUID of DNode or NULL
cid	string representing Block's chunk ID or NULL

ListBlock_deserialize()

ListBlock ListBlock_deserialize

(

Buffer

buf

)

Deserialize a Buffer into a List of Block's.

Caller must free memory in Block.cid.

Parameters

buffer

The Buffer you want to deserialize

Returns

The List of Block's that the Buffer represents

ListBlock_serialize()

Buffer ListBlock_serialize

(

ListBlock

list

)

Serialize a List of Block's into a Buffer.

Caller must free memory in Buffer.buf.

Parameters

list	the List of Block's that you want to serialize

Returns

the Buffer that the ListBlock represents

print_block()

void print_block

(

Block

block

)

Print a Block's data as a tuple.

Parameters

block

the Block to be printed

select_from_block()

ListBlock select_from_block	(	UUID *	bid,
		UUID *	fid,
		UUID *	nid,
		UUID *	cid,
		size_t *	seq )

SELECT from the Block table.

Parameters

bid	the Block's UUID or NULL
fid	the Block's INode's file's UUID or NULL
nid	the Block's DNode's UUID or NULL
cid	the Block's chunk ID or NULL

Returns

a ListBlock of the possible matches