Glass freelist. More...

#include <config.h>
#include "glass_freelist.h"
#include "glass_table.h"
#include "xapian/error.h"
#include "omassert.h"
#include "wordaccess.h"
#include <cstring>

Include dependency graph for glass_freelist.cc:

Go to the source code of this file.

Macros
#define	FREELIST_END block_size

Variables
const unsigned	C_BASE = 8
	The first offset to use for storing free block info. More...

const uint4	UNUSED = static_cast<uint4>(-1)
	Invalid freelist block value, so we can detect overreading bugs, etc. More...

Detailed Description

Glass freelist.

Definition in file glass_freelist.cc.

Macro Definition Documentation

◆ FREELIST_END

#define FREELIST_END block_size

Definition at line 52 of file glass_freelist.cc.

Referenced by GlassFreeList::commit(), GlassFreeList::get_block(), GlassFreeList::mark_block_unused(), and GlassFreeList::walk().

Variable Documentation

◆ C_BASE

const unsigned C_BASE = 8

The first offset to use for storing free block info.

The first 4 bytes store the revision. The next byte (which is the level for a block in the B-tree) is set to LEVEL_FREELIST to mark this as a freelist block).

Definition at line 61 of file glass_freelist.cc.

Referenced by GlassFreeList::get_block(), GlassFreeList::mark_block_unused(), and GlassFreeList::walk().

◆ UNUSED

const uint4 UNUSED = static_cast<uint4>(-1)

Invalid freelist block value, so we can detect overreading bugs, etc.

Definition at line 64 of file glass_freelist.cc.