27 lines
1.1 KiB
C
27 lines
1.1 KiB
C
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#ifndef SLEEP_BITFIELD_H
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#define SLEEP_BITFIELD_H
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#include <stddef.h>
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#include <stdint.h>
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#define SLEEP_BITFIELD_DATA_BYTES 1024u
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#define SLEEP_BITFIELD_TREE_BYTES 2048u
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#define SLEEP_BITFIELD_INDEX_BYTES 256u
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#define SLEEP_BITFIELD_RESERVED_BYTES 256u
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typedef struct sleep_bitfield {
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uint8_t data[SLEEP_BITFIELD_DATA_BYTES];
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uint8_t tree[SLEEP_BITFIELD_TREE_BYTES];
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uint8_t index[SLEEP_BITFIELD_INDEX_BYTES];
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uint8_t reserved[SLEEP_BITFIELD_RESERVED_BYTES];
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} sleep_bitfield_t;
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void sleep_bitfield_clear(sleep_bitfield_t *field);
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int sleep_bitfield_get_data(const sleep_bitfield_t *field, size_t bit);
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int sleep_bitfield_get_tree(const sleep_bitfield_t *field, size_t bit);
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int sleep_bitfield_set_data(sleep_bitfield_t *field, size_t bit, int present);
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int sleep_bitfield_set_tree(sleep_bitfield_t *field, size_t bit, int present);
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void sleep_bitfield_reindex(sleep_bitfield_t *field);
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size_t sleep_bitfield_next_data(const sleep_bitfield_t *field, size_t start, int present);
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int sleep_bitfield_encode(const sleep_bitfield_t *field, uint8_t *out, size_t capacity);
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int sleep_bitfield_decode(sleep_bitfield_t *field, const uint8_t *input, size_t length);
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#endif
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