src/allocator.c

Thu, 17 Nov 2022 18:25:40 +0100

author
Mike Becker <universe@uap-core.de>
date
Thu, 17 Nov 2022 18:25:40 +0100
changeset 611
77efa5163ae5
parent 508
8aea65ae1eaf
child 628
1e2be40f0cb5
permissions
-rw-r--r--

#219 array list: implement insert

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 #include "cx/allocator.h"
universe@391 30
universe@391 31 #include <stdlib.h>
universe@391 32
universe@452 33 __attribute__((__malloc__, __alloc_size__(2)))
universe@508 34 static void *cx_malloc_stdlib(
universe@508 35 __attribute__((__unused__)) void *d,
universe@508 36 size_t n
universe@508 37 ) {
universe@397 38 return malloc(n);
universe@397 39 }
universe@397 40
universe@452 41 __attribute__((__warn_unused_result__, __alloc_size__(3)))
universe@508 42 static void *cx_realloc_stdlib(
universe@508 43 __attribute__((__unused__)) void *d,
universe@508 44 void *mem,
universe@508 45 size_t n
universe@508 46 ) {
universe@397 47 return realloc(mem, n);
universe@397 48 }
universe@397 49
universe@452 50 __attribute__((__malloc__, __alloc_size__(2, 3)))
universe@508 51 static void *cx_calloc_stdlib(
universe@508 52 __attribute__((__unused__)) void *d,
universe@508 53 size_t nelem,
universe@508 54 size_t n
universe@508 55 ) {
universe@397 56 return calloc(nelem, n);
universe@397 57 }
universe@397 58
universe@450 59 __attribute__((__nonnull__))
universe@508 60 static void cx_free_stdlib(
universe@508 61 __attribute__((__unused__)) void *d,
universe@508 62 void *mem
universe@508 63 ) {
universe@397 64 free(mem);
universe@397 65 }
universe@397 66
universe@450 67 static cx_allocator_class cx_default_allocator_class = {
universe@396 68 cx_malloc_stdlib,
universe@396 69 cx_realloc_stdlib,
universe@396 70 cx_calloc_stdlib,
universe@396 71 cx_free_stdlib
universe@396 72 };
universe@396 73
universe@391 74 struct cx_allocator_s cx_default_allocator = {
universe@396 75 &cx_default_allocator_class,
universe@391 76 NULL
universe@391 77 };
universe@500 78 CxAllocator *cxDefaultAllocator = &cx_default_allocator;
universe@391 79
universe@434 80 /* IMPLEMENTATION OF HIGH LEVEL API */
universe@434 81
universe@500 82 void *cxMalloc(
universe@508 83 CxAllocator const *allocator,
universe@500 84 size_t n
universe@500 85 ) {
universe@396 86 return allocator->cl->malloc(allocator->data, n);
universe@394 87 }
universe@394 88
universe@500 89 void *cxRealloc(
universe@508 90 CxAllocator const *allocator,
universe@500 91 void *mem,
universe@500 92 size_t n
universe@500 93 ) {
universe@396 94 return allocator->cl->realloc(allocator->data, mem, n);
universe@394 95 }
universe@394 96
universe@500 97 int cxReallocate(
universe@508 98 CxAllocator const *allocator,
universe@500 99 void **mem,
universe@500 100 size_t n
universe@500 101 ) {
universe@450 102 void *nmem = allocator->cl->realloc(allocator->data, *mem, n);
universe@414 103 if (nmem == NULL) {
universe@414 104 return 1;
universe@414 105 } else {
universe@414 106 *mem = nmem;
universe@414 107 return 0;
universe@414 108 }
universe@414 109 }
universe@414 110
universe@500 111 void *cxCalloc(
universe@508 112 CxAllocator const *allocator,
universe@500 113 size_t nelem,
universe@500 114 size_t n
universe@500 115 ) {
universe@396 116 return allocator->cl->calloc(allocator->data, nelem, n);
universe@394 117 }
universe@394 118
universe@500 119 void cxFree(
universe@508 120 CxAllocator const *allocator,
universe@500 121 void *mem
universe@500 122 ) {
universe@396 123 allocator->cl->free(allocator->data, mem);
universe@397 124 }

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