BLI_heap.h

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "BLI_compiler_attrs.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct Heap;
struct HeapNode;
typedef struct Heap Heap;
typedef struct HeapNode HeapNode;
 
typedef void (*HeapFreeFP)(void *ptr);
 
Heap *BLI_heap_new_ex(unsigned int reserve_num) ATTR_WARN_UNUSED_RESULT;
Heap *BLI_heap_new(void) ATTR_WARN_UNUSED_RESULT;
void BLI_heap_clear(Heap *heap, HeapFreeFP ptrfreefp) ATTR_NONNULL(1);
void BLI_heap_free(Heap *heap, HeapFreeFP ptrfreefp) ATTR_NONNULL(1);
HeapNode *BLI_heap_insert(Heap *heap, float value, void *ptr) ATTR_NONNULL(1);
void BLI_heap_insert_or_update(Heap *heap, HeapNode **node_p, float value, void *ptr)
    ATTR_NONNULL(1, 2);
void BLI_heap_remove(Heap *heap, HeapNode *node) ATTR_NONNULL(1, 2);
bool BLI_heap_is_empty(const Heap *heap) ATTR_NONNULL(1);
unsigned int BLI_heap_len(const Heap *heap) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
HeapNode *BLI_heap_top(const Heap *heap) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
float BLI_heap_top_value(const Heap *heap) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void *BLI_heap_pop_min(Heap *heap) ATTR_NONNULL(1);
void BLI_heap_node_value_update(Heap *heap, HeapNode *node, float value) ATTR_NONNULL(1, 2);
void BLI_heap_node_value_update_ptr(Heap *heap, HeapNode *node, float value, void *ptr)
    ATTR_NONNULL(1, 2);
 
float BLI_heap_node_value(const HeapNode *heap) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
void *BLI_heap_node_ptr(const HeapNode *heap) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL(1);
bool BLI_heap_is_valid(const Heap *heap);
 
#ifdef __cplusplus
}
#endif