mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
0cb4ac79d5
Move the intialization of the paramters to runtime by converting the static array to a vector and filling it when critirion calls the test setup. Global variable initialization order across translation units is not defined. Referring to e.g. the memory::mmap global variable in the initialization of the static unit test parameter set may leave an incorrect address in the struct param. Signed-off-by: Philipp Jungkamp <Philipp.Jungkamp@opal-rt.com>
87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/** Memory pool for fixed size objects.
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*
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* @author Steffen Vogel <post@steffenvogel.de>
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* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
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* @license Apache 2.0
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*********************************************************************************/
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#include <villas/utils.hpp>
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#include <villas/exceptions.hpp>
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#include <villas/pool.hpp>
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#include <villas/node/memory.hpp>
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#include <villas/kernel/kernel.hpp>
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#include <villas/log.hpp>
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using namespace villas;
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int villas::node::pool_init(struct Pool *p, size_t cnt, size_t blocksz, struct memory::Type *m)
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{
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int ret;
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auto logger = logging.get("pool");
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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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p->alignment = kernel::getCachelineSize();
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p->blocksz = p->alignment * CEIL(blocksz, p->alignment);
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p->len = cnt * p->blocksz;
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logger->debug("New memory pool: alignment={}, blocksz={}, len={}, memory={}", p->alignment, p->blocksz, p->len, m->name);
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void *buffer = memory::alloc_aligned(p->len, p->alignment, m);
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if (!buffer)
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throw MemoryAllocationError();
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logger->debug("Allocated {:#x} bytes for memory pool", p->len);
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p->buffer_off = (char*) buffer - (char*) p;
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ret = queue_init(&p->queue, LOG2_CEIL(cnt), m);
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if (ret)
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return ret;
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for (unsigned i = 0; i < cnt; i++)
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queue_push(&p->queue, (char *) buffer + i * p->blocksz);
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p->state = State::INITIALIZED;
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return 0;
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}
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int villas::node::pool_destroy(struct Pool *p)
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{
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int ret;
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if (p->state == State::DESTROYED)
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return 0;
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ret = queue_destroy(&p->queue);
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if (ret)
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return ret;
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void *buffer = (char *) p + p->buffer_off;
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ret = memory::free(buffer);
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if (ret == 0)
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p->state = State::DESTROYED;
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return ret;
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}
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ssize_t villas::node::pool_get_many(struct Pool *p, void *blocks[], size_t cnt)
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{
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return queue_pull_many(&p->queue, blocks, cnt);
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}
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ssize_t villas::node::pool_put_many(struct Pool *p, void *blocks[], size_t cnt)
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{
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return queue_push_many(&p->queue, blocks, cnt);
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}
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void * villas::node::pool_get(struct Pool *p)
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{
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void *ptr;
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return queue_pull(&p->queue, &ptr) == 1 ? ptr : nullptr;
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}
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int villas::node::pool_put(struct Pool *p, void *buf)
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{
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return queue_push(&p->queue, buf);
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}
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