haiku/headers/private/kernel/slab/Depot.h

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/*
* Copyright 2007, Hugo Santos. All Rights Reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Hugo Santos, hugosantos@gmail.com
*/
#ifndef _SLAB_DEPOT_H_
#define _SLAB_DEPOT_H_
#include <stdint.h>
#include <lock.h>
#include <smp.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct depot_magazine {
struct depot_magazine *next;
uint16_t current_round, round_count;
void *rounds[0];
} depot_magazine;
typedef struct depot_cpu_store {
benaphore lock;
depot_magazine *loaded, *previous;
} depot_cpu_store;
typedef struct base_depot {
benaphore lock;
depot_magazine *full, *empty;
size_t full_count, empty_count;
depot_cpu_store *stores;
void (*return_object)(base_depot *depot, void *object);
} base_depot;
static inline depot_cpu_store *
base_depot_cpu(base_depot *depot)
{
return &depot->stores[smp_get_current_cpu()];
}
status_t base_depot_init(base_depot *depot,
void (*return_object)(base_depot *, void *));
void base_depot_destroy(base_depot *depot);
void *base_depot_obtain_from_store(base_depot *depot, depot_cpu_store *store);
int base_depot_return_to_store(base_depot *depot, depot_cpu_store *store,
void *object);
void base_depot_make_empty(base_depot *depot);
#ifdef __cplusplus
}
#endif
#endif