57 lines
1.0 KiB
C
57 lines
1.0 KiB
C
/* pools.h
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* simple fixed size block allocator
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*/
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#ifndef _KERNEL_POOLS_H
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#define _KERNEL_POOLS_H
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#include <lock.h>
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typedef struct pool_ctl pool_ctl;
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struct pool_mem {
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struct pool_mem *next;
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region_id aid;
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char *base_addr;
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size_t mem_size;
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char *ptr;
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size_t avail;
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benaphore lock;
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};
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#define FREE_MAGIC 'BORK'
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struct free_blk {
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uint32 magic;
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struct free_blk *next;
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uint32 magic_check;
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};
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#define POOL_USES_BENAPHORES 0
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#define POOL_DEBUG_NAME_SZ 32
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struct pool_ctl {
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struct pool_mem *list;
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struct free_blk *freelist;
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size_t alloc_size;
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size_t block_size;
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#if POOL_USES_BENAPHORES
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benaphore lock;
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#else
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rw_lock lock;
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#endif
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int debug : 1;
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char name[POOL_DEBUG_NAME_SZ];
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};
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int32 pool_init(pool_ctl **p, size_t sz);
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void *pool_get(pool_ctl *p);
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void pool_put(pool_ctl *p, void *ptr);
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void pool_destroy(pool_ctl *p);
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void pool_debug(struct pool_ctl *p, char *name);
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void pool_debug_walk(pool_ctl *p);
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#endif /* _KERNEL_POOLS_H */
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