128 lines
3.2 KiB
C
128 lines
3.2 KiB
C
/* $NetBSD: pool.c,v 1.1 2007/08/05 22:28:09 pooka Exp $ */
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/*
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* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
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*
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* Development of this software was supported by Google Summer of Code.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/pool.h>
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#include "rumpuser.h"
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struct pool_cache pnbuf_cache;
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struct pool pnbuf_pool;
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struct pool_allocator pool_allocator_nointr;
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void
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pool_init(struct pool *pp, size_t size, u_int align, u_int align_offset,
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int flags, const char *wchan, struct pool_allocator *palloc, int ipl)
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{
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pp->pr_size = size;
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}
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void
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pool_destroy(struct pool *pp)
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{
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return;
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}
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void
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pool_cache_init(struct pool_cache *pc, struct pool *pp,
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int (*ctor)(void *, void *, int), void (*dtor)(void *, void *),
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void *arg)
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{
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pc->pc_pool = pp;
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pc->pc_ctor = ctor;
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pc->pc_dtor = dtor;
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pc->pc_arg = arg;
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}
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void *
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pool_cache_get_paddr(struct pool_cache *pc, int flags, paddr_t *pap)
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{
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void *item;
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item = pool_get(pc->pc_pool, 0);
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if (pc->pc_ctor)
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pc->pc_ctor(pc->pc_arg, item, flags);
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if (pap)
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*pap = POOL_PADDR_INVALID;
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return item;
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}
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void
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pool_cache_put_paddr(struct pool_cache *pc, void *object, paddr_t pa)
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{
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if (pc->pc_dtor)
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pc->pc_dtor(pc->pc_arg, object);
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pool_put(pc->pc_pool, object);
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}
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void *
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pool_get(struct pool *pp, int flags)
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{
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void *rv;
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if (pp->pr_size == 0)
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panic("%s: pool unit size 0. not initialized?", __func__);
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rv = rumpuser_malloc(pp->pr_size, 1);
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if (rv == NULL && (flags & PR_WAITOK && (flags & PR_LIMITFAIL) == 0))
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panic("%s: out of memory and PR_WAITOK", __func__);
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return rv;
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}
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void
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pool_put(struct pool *pp, void *item)
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{
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rumpuser_free(item);
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}
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/* XXX: for tmpfs, shouldn't be here */
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void *pool_page_alloc_nointr(struct pool *, int);
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void pool_page_free_nointr(struct pool *, void *);
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void *
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pool_page_alloc_nointr(struct pool *pp, int flags)
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{
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return pool_get(pp, flags);
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}
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void
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pool_page_free_nointr(struct pool *pp, void *item)
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{
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return pool_put(pp, item);
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}
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