d343041caa
Introduce explicit abstractions for different mapping types, handling the instantiation, forking, pagefaults and freeing of anonymous memory, direct physical mappings, shared memory and physically contiguous anonymous memory as separate types, making region.c more generic. Also some other genericification like merging the 3 munmap cases into one. COW and SMAP safemap code is still implicit in region.c.
21 lines
848 B
C
21 lines
848 B
C
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#include <minix/u64.h>
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#define AVL_UNIQUE(id) physr_ ## id
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#define AVL_HANDLE phys_region_t *
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#define AVL_KEY vir_bytes
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#define AVL_MAX_DEPTH 30 /* good for 2 million nodes */
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#define AVL_NULL NULL
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#define AVL_GET_LESS(h, a) (h)->less
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#define AVL_GET_GREATER(h, a) (h)->greater
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#define AVL_SET_LESS(h1, h2) USE((h1), (h1)->less = h2;);
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#define AVL_SET_GREATER(h1, h2) USE((h1), (h1)->greater = h2;);
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#define AVL_GET_BALANCE_FACTOR(h) (h)->factor
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#define AVL_SET_BALANCE_FACTOR(h, f) USE((h), (h)->factor = f;);
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#define AVL_SET_ROOT(h, v) USE((h), (h)->root = v;);
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#define AVL_COMPARE_KEY_KEY(k1, k2) ((k1) > (k2) ? 1 : ((k1) < (k2) ? -1 : 0))
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#define AVL_COMPARE_KEY_NODE(k, h) AVL_COMPARE_KEY_KEY((k), (h)->offset)
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#define AVL_COMPARE_NODE_NODE(h1, h2) AVL_COMPARE_KEY_KEY((h1)->offset, (h2)->offset)
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#define AVL_INSIDE_STRUCT char pad[4];
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