slab.c File Reference

a Slab Allocator More...

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <stddef.h>
#include <sys/mman.h>
#include <math.h>
#include <assert.h>
#include <core/core.h>
#include <mm/mm.h>

Include dependency graph for slab.c:

Go to the source code of this file.

Macros
#define	SLOTS_ALL_ZERO   ((uint64_t) 0)
#define	SLOTS_FIRST   ((uint64_t) 1)
#define	FIRST_FREE_SLOT(s)   ((size_t) __builtin_ctzll(s))
#define	FREE_SLOTS(s)   ((size_t) __builtin_popcountll(s))
#define	ONE_USED_SLOT(slots, empty_slotmask)

Functions
static int	slab_is_valid (const struct slab_chain *const sch)
struct slab_chain *	slab_init (const size_t itemsize)
void *	slab_alloc (struct slab_chain *const sch)
void	slab_free (struct slab_chain *const sch, const void *const addr)
void	slab_destroy (const struct slab_chain *const sch)

Detailed Description

a Slab Allocator

Slab Allocator

Copyright

Copyright (C) 2008-2019 HPDCS Group https://hpdcs.github.io

This file is part of ROOT-Sim (ROme OpTimistic Simulator).

ROOT-Sim is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; only version 3 of the License applies.

ROOT-Sim is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with ROOT-Sim; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Author

Blagovest Buyukliev - https://github.com/bbu/userland-slab-allocator

Definition in file slab.c.

Macro Definition Documentation

#define ONE_USED_SLOT	(		slots,
			empty_slotmask
	)

Value:

( \
        ( \
            (~(slots) & (empty_slotmask))       & \
            ((~(slots) & (empty_slotmask)) - 1)   \
        ) == SLOTS_ALL_ZERO \
    )

Definition at line 45 of file slab.c.