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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#ifndef __NM_PRIOQ_H__
#define __NM_PRIOQ_H__
#define NM_PRIOQ_IDX_NULL G_MAXUINT
struct _NMPrioqItem;
typedef struct {
struct {
union {
GCompareDataFunc compare_data_func;
GCompareFunc compare_func;
};
gpointer compare_data;
struct _NMPrioqItem *items;
unsigned n_items;
unsigned n_allocated;
bool compare_with_data;
} _priv;
} NMPrioq;
#define NM_PRIOQ_ZERO \
{ \
._priv = \
{ \
.compare_func = NULL, \
}, \
}
void nm_prioq_init(NMPrioq *q, GCompareFunc compare_func);
void nm_prioq_init_with_data(NMPrioq *q, GCompareDataFunc compare_func, gpointer compare_data);
void nm_prioq_destroy(NMPrioq *q);
#define nm_auto_prioq nm_auto(nm_prioq_destroy)
void nm_prioq_put(NMPrioq *q, void *data, unsigned *idx);
gboolean nm_prioq_remove(NMPrioq *q, void *data, unsigned *idx);
gboolean nm_prioq_reshuffle(NMPrioq *q, void *data, unsigned *idx);
void nm_prioq_update(NMPrioq *q, void *data, unsigned *idx, bool queued /* or else remove */);
void *nm_prioq_peek_by_index(NMPrioq *q, unsigned idx) _nm_pure;
static inline void *
nm_prioq_peek(NMPrioq *q)
{
return nm_prioq_peek_by_index(q, 0);
}
void *nm_prioq_pop(NMPrioq *q);
#define nm_prioq_for_each(q, p) for (unsigned _i = 0; (p = nm_prioq_peek_by_index((q), _i)); _i++)
_nm_pure static inline unsigned
nm_prioq_size(NMPrioq *q)
{
nm_assert(q);
return q->_priv.n_items;
}
_nm_pure static inline gboolean
nm_prioq_isempty(NMPrioq *q)
{
return nm_prioq_size(q) <= 0;
}
#endif /* __NM_PRIOQ_H__ */
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