From 9a6dcbf895f9da01768e64b73cec88c16157d91e Mon Sep 17 00:00:00 2001 From: Michael Biebl Date: Tue, 26 Mar 2019 23:25:23 +0100 Subject: New upstream version 1.16.0 --- shared/systemd/src/basic/prioq.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 shared/systemd/src/basic/prioq.h (limited to 'shared/systemd/src/basic/prioq.h') diff --git a/shared/systemd/src/basic/prioq.h b/shared/systemd/src/basic/prioq.h new file mode 100644 index 00000000..1fb57bfa --- /dev/null +++ b/shared/systemd/src/basic/prioq.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#pragma once + +#include + +#include "hashmap.h" +#include "macro.h" + +typedef struct Prioq Prioq; + +#define PRIOQ_IDX_NULL ((unsigned) -1) + +Prioq *prioq_new(compare_func_t compare); +Prioq *prioq_free(Prioq *q); +DEFINE_TRIVIAL_CLEANUP_FUNC(Prioq*, prioq_free); +int prioq_ensure_allocated(Prioq **q, compare_func_t compare_func); + +int prioq_put(Prioq *q, void *data, unsigned *idx); +int prioq_remove(Prioq *q, void *data, unsigned *idx); +int prioq_reshuffle(Prioq *q, void *data, unsigned *idx); + +void *prioq_peek_by_index(Prioq *q, unsigned idx) _pure_; +static inline void *prioq_peek(Prioq *q) { + return prioq_peek_by_index(q, 0); +} +void *prioq_pop(Prioq *q); + +#define PRIOQ_FOREACH_ITEM(q, p) \ + for (unsigned _i = 0; (p = prioq_peek_by_index(q, _i)); _i++) + +unsigned prioq_size(Prioq *q) _pure_; +bool prioq_isempty(Prioq *q) _pure_; -- cgit 1.3.0-6-gf8a5