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b01f31954f
Before we had the following scheme: mempool_enabled() would check mempool_use_allowed, and libsystemd-shared would be linked with a .c file that provides mempool_use_allowed=true, while other things would linked with a different .c file with mempool_use_allowed=false. In the new scheme, mempool_enabled() itself is a weak symbol. If it's not found, we assume false. So it only needs to be provided for libsystemd-shared, where it can return false or true. test-set-disable-mempool is libshared, so it gets the symbol. But then we actually disable the mempool via envvar. mempool_enable() is called to check its return value directly.
31 lines
691 B
C
31 lines
691 B
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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struct pool;
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struct mempool {
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struct pool *first_pool;
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void *freelist;
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size_t tile_size;
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unsigned at_least;
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};
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void* mempool_alloc_tile(struct mempool *mp);
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void* mempool_alloc0_tile(struct mempool *mp);
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void mempool_free_tile(struct mempool *mp, void *p);
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#define DEFINE_MEMPOOL(pool_name, tile_type, alloc_at_least) \
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static struct mempool pool_name = { \
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.tile_size = sizeof(tile_type), \
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.at_least = alloc_at_least, \
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}
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__attribute__((weak)) bool mempool_enabled(void);
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#if VALGRIND
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void mempool_drop(struct mempool *mp);
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#endif
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