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48 lines
No EOL
1.2 KiB
C
48 lines
No EOL
1.2 KiB
C
/** Memory pool for fixed size objects.
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*
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2016, Institute for Automation of Complex Power Systems, EONERC
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* This file is part of VILLASnode. All Rights Reserved. Proprietary and confidential.
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* Unauthorized copying of this file, via any medium is strictly prohibited.
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*/
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#include "utils.h"
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#include "pool.h"
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#include "memory.h"
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#include "kernel/kernel.h"
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int pool_init(struct pool *p, size_t blocksz, size_t cnt, const struct memtype *m)
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{
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void *addr;
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int flags, prot;
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size_t len, alignedsz, alignment;
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/* Make sure that we use a block size that is aligned to the size of a cache line */
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alignment = kernel_get_cacheline_size();
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alignedsz = blocksz * CEIL(blocksz, );
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len = cnt * alignedsz;
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addr = memory_alloc_align(m, len, aligment);
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if (!addr)
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serror("Failed to allocate memory for memory pool");
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else
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debug(DBG_POOL | 4, "Allocated %#zx bytes for memory pool", len);
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p->blocksz = blocksz;
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p->alignment = alignment;
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mpmc_queue_init(&p->queue, cnt, m);
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for (int i = 0; i < cnt; i++)
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lstack_push(&p->stack, buf + i * alignedsz);
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return 0;
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}
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int pool_destroy(struct pool *p)
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{
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mpmc_queue_destroy(&p->queue);
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memory_dealloc(p->buffer, p->len);
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} |