src/cx/allocator.h

Sun, 07 Feb 2021 12:20:07 +0100

author
Mike Becker <universe@uap-core.de>
date
Sun, 07 Feb 2021 12:20:07 +0100
changeset 391
f094a53c1178
child 393
8c0421ccbb58
permissions
-rw-r--r--

adds allocator interface and default implementation

universe@391 1 /*
universe@391 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@391 3 *
universe@391 4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
universe@391 5 *
universe@391 6 * Redistribution and use in source and binary forms, with or without
universe@391 7 * modification, are permitted provided that the following conditions are met:
universe@391 8 *
universe@391 9 * 1. Redistributions of source code must retain the above copyright
universe@391 10 * notice, this list of conditions and the following disclaimer.
universe@391 11 *
universe@391 12 * 2. Redistributions in binary form must reproduce the above copyright
universe@391 13 * notice, this list of conditions and the following disclaimer in the
universe@391 14 * documentation and/or other materials provided with the distribution.
universe@391 15 *
universe@391 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@391 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@391 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@391 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@391 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@391 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@391 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@391 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@391 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@391 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@391 26 * POSSIBILITY OF SUCH DAMAGE.
universe@391 27 */
universe@391 28
universe@391 29 #ifndef UCX_ALLOCATOR_H
universe@391 30 #define UCX_ALLOCATOR_H
universe@391 31
universe@391 32 #include <stdlib.h>
universe@391 33
universe@391 34 typedef void* cx_allocator;
universe@391 35 typedef void*(*cx_malloc_func)(cx_allocator a, size_t n);
universe@391 36 typedef void*(*cx_realloc_func)(cx_allocator a, void* mem, size_t n);
universe@391 37 typedef void*(*cx_calloc_func)(cx_allocator a, size_t nelem, size_t n);
universe@391 38 typedef void(*cx_free_func)(cx_allocator a, void* mem);
universe@391 39
universe@391 40 void* cx_malloc_stdlib(cx_allocator a, size_t n);
universe@391 41 void* cx_realloc_stdlib(cx_allocator a, void* mem, size_t n);
universe@391 42 void* cx_calloc_stdlib(cx_allocator a, size_t nelem, size_t n);
universe@391 43 void cx_free_stdlib(cx_allocator a, void* mem);
universe@391 44
universe@391 45 struct cx_allocator_s {
universe@391 46 cx_malloc_func malloc;
universe@391 47 cx_realloc_func realloc;
universe@391 48 cx_calloc_func calloc;
universe@391 49 cx_free_func free;
universe@391 50 void* data;
universe@391 51 };
universe@391 52 typedef struct cx_allocator_s* CxAllocator;
universe@391 53
universe@391 54 extern CxAllocator cxDefaultAllocator;
universe@391 55
universe@391 56 #define cxMalloc(a, n) (a)->malloc((a), n)
universe@391 57 #define cxRealloc(a, mem, n) (a)->realloc((a), mem, n)
universe@391 58 #define cxCalloc(a, nelem, n) (a)->calloc((a), nelem, n)
universe@391 59 #define cxFree(a, mem) (a)->free((a), mem)
universe@391 60
universe@391 61 #endif //UCX_ALLOCATOR_H

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