ucx
UAP Common Extensions
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mempool.h
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1/*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
37#ifndef UCX_MEMPOOL_H
38#define UCX_MEMPOOL_H
39
40#include "common.h"
41#include "allocator.h"
42
43#ifdef __cplusplus
44extern "C" {
45#endif
46
48struct cx_mempool_memory_s;
49
57
63
65 struct cx_mempool_memory_s **data;
66
68 size_t size;
69
71 size_t capacity;
72};
73
77typedef struct cx_mempool_s CxMempool;
78
88__attribute__((__warn_unused_result__))
90
97__attribute__((__warn_unused_result__))
98static inline CxMempool *cxBasicMempoolCreate(size_t capacity) {
99 return cxMempoolCreate(capacity, NULL);
100}
101
107__attribute__((__nonnull__))
109
119__attribute__((__nonnull__))
121 void *memory,
123);
124
138__attribute__((__nonnull__))
140 CxMempool *pool,
141 void *memory,
143);
144
145#ifdef __cplusplus
146} // extern "C"
147#endif
148
149#endif // UCX_MEMPOOL_H
Interface for custom allocators.
void(* cx_destructor_func)(void *memory)
Function pointer type for destructor functions.
Definition: allocator.h:117
Common definitions and feature checks.
#define __attribute__(x)
Removes GNU C attributes where they are not supported.
Definition: common.h:127
static CxMempool * cxBasicMempoolCreate(size_t capacity)
Creates a basic array-based memory pool.
Definition: mempool.h:98
CxMempool * cxMempoolCreate(size_t capacity, cx_destructor_func destr)
Creates an array-based memory pool with a shared destructor function.
int cxMempoolRegister(CxMempool *pool, void *memory, cx_destructor_func destr)
Registers foreign memory with this pool.
void cxMempoolDestroy(CxMempool *pool)
Destroys a memory pool and frees the managed memory.
void cxMempoolSetDestructor(void *memory, cx_destructor_func fnc)
Sets the destructor function for a specific allocated memory object.
Structure holding the data for an allocator.
Definition: allocator.h:86
The basic structure of a memory pool.
Definition: mempool.h:54
size_t capacity
Memory pool capacity.
Definition: mempool.h:71
struct cx_mempool_memory_s ** data
Array of pooled memory.
Definition: mempool.h:65
cx_destructor_func auto_destr
A destructor that shall be automatically registered for newly allocated memory.
Definition: mempool.h:62
CxAllocator const * allocator
The provided allocator.
Definition: mempool.h:56
size_t size
Number of pooled memory items.
Definition: mempool.h:68