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37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include "forward.h"
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typedef struct Prioq Prioq;
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#define PRIOQ_IDX_NULL (UINT_MAX)
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Prioq* prioq_new(compare_func_t compare);
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Prioq* prioq_free(Prioq *q);
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DEFINE_TRIVIAL_CLEANUP_FUNC(Prioq*, prioq_free);
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int prioq_ensure_allocated(Prioq **q, compare_func_t compare_func);
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int prioq_put(Prioq *q, void *data, unsigned *idx);
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int _prioq_ensure_put(Prioq **q, compare_func_t compare_func, void *data, unsigned *idx);
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#define prioq_ensure_put(q, compare_func, data, idx) \
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({ \
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int (*_func_)(const typeof((data)[0])*, const typeof((data)[0])*) = compare_func; \
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_prioq_ensure_put(q, (compare_func_t) _func_, data, idx); \
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})
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int prioq_remove(Prioq *q, void *data, unsigned *idx);
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void prioq_reshuffle(Prioq *q, void *data, unsigned *idx);
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void* prioq_peek_by_index(Prioq *q, unsigned idx) _pure_;
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static inline void *prioq_peek(Prioq *q) {
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return prioq_peek_by_index(q, 0);
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}
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void* prioq_pop(Prioq *q);
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#define PRIOQ_FOREACH_ITEM(q, p) \
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for (unsigned _i = 0; (p = prioq_peek_by_index(q, _i)); _i++)
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unsigned prioq_size(Prioq *q) _pure_;
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bool prioq_isempty(Prioq *q) _pure_;
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