src/basic/prioq.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <stdbool.h>
   5
   6 #include "hashmap.h"
   7 #include "macro.h"
   8
   9 typedef struct Prioq Prioq;
  10
  11 #define PRIOQ_IDX_NULL ((unsigned) -1)
  12
  13 Prioq *prioq_new(compare_func_t compare);
  14 Prioq *prioq_free(Prioq *q);
  15 DEFINE_TRIVIAL_CLEANUP_FUNC(Prioq*, prioq_free);
  16 int prioq_ensure_allocated(Prioq **q, compare_func_t compare_func);
  17
  18 int prioq_put(Prioq *q, void *data, unsigned *idx);
  19 int prioq_remove(Prioq *q, void *data, unsigned *idx);
  20 int prioq_reshuffle(Prioq *q, void *data, unsigned *idx);
  21
  22 void *prioq_peek(Prioq *q) _pure_;
  23 void *prioq_pop(Prioq *q);
  24
  25 unsigned prioq_size(Prioq *q) _pure_;
  26 bool prioq_isempty(Prioq *q) _pure_;