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/*
* Copyright (c) 2018 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef included_valloc_h
#define included_valloc_h
#include <vppinfra/clib.h>
#include <vppinfra/pool.h>
#include <vppinfra/bitmap.h>
#include <vppinfra/lock.h>
#include <vppinfra/hash.h>
/** @file
@brief Simple first-fit virtual space allocator
*/
typedef struct
{
u32 next; /**< next chunk pool index */
u32 prev; /**< previous chunk pool index */
uword baseva; /**< base VA for this chunk */
uword size; /**< size in bytes of this chunk */
uword flags; /**< flags (free/busy) */
} clib_valloc_chunk_t;
#define CLIB_VALLOC_BUSY (1<<0) /**< chunk is in use */
typedef struct
{
clib_valloc_chunk_t *chunks; /**< pool of virtual chunks */
uword *chunk_index_by_baseva; /**< chunk by baseva hash */
clib_spinlock_t lock; /**< spinlock */
uword flags; /**< flags */
u32 first_index; /**< pool index of first chunk in list */
} clib_valloc_main_t;
#define CLIB_VALLOC_INITIALIZED (1<<0) /**< object has been initialized */
/* doxygen tags in valloc.c */
void clib_valloc_init (clib_valloc_main_t * vam,
clib_valloc_chunk_t * template, int need_lock);
void
clib_valloc_add_chunk (clib_valloc_main_t * vam,
clib_valloc_chunk_t * template);
format_function_t format_valloc;
uword clib_valloc_free (clib_valloc_main_t * vam, uword baseva);
uword clib_valloc_alloc (clib_valloc_main_t * vam, uword size,
int os_out_of_memory_on_failure);
#endif /* included_valloc_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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