comparison: ucx/allocator.c
ucx/allocator.c
- changeset 431
- bb7da585debc
- parent 324
- ce13a778654a
- child 440
- 7c4b9cba09ca
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| 169:fe49cff3c571 | 431:bb7da585debc |
|---|---|
| 1 /* | 1 /* |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
| 3 * | 3 * |
| 4 * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved. | 4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. |
| 5 * | 5 * |
| 6 * Redistribution and use in source and binary forms, with or without | 6 * Redistribution and use in source and binary forms, with or without |
| 7 * modification, are permitted provided that the following conditions are met: | 7 * modification, are permitted provided that the following conditions are met: |
| 8 * | 8 * |
| 9 * 1. Redistributions of source code must retain the above copyright | 9 * 1. Redistributions of source code must retain the above copyright |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | 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 | 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 26 * POSSIBILITY OF SUCH DAMAGE. | 26 * POSSIBILITY OF SUCH DAMAGE. |
| 27 */ | 27 */ |
| 28 | 28 |
| 29 #include "ucx/allocator.h" | 29 #include "cx/allocator.h" |
| 30 | 30 |
| 31 #include <stdlib.h> | 31 __attribute__((__malloc__, __alloc_size__(2))) |
| 32 | 32 static void *cx_malloc_stdlib( |
| 33 static UcxAllocator default_allocator = { | 33 __attribute__((__unused__)) void *d, |
| 34 NULL, | 34 size_t n |
| 35 ucx_default_malloc, | 35 ) { |
| 36 ucx_default_calloc, | |
| 37 ucx_default_realloc, | |
| 38 ucx_default_free | |
| 39 }; | |
| 40 | |
| 41 UcxAllocator *ucx_default_allocator() { | |
| 42 UcxAllocator *allocator = &default_allocator; | |
| 43 return allocator; | |
| 44 } | |
| 45 | |
| 46 void *ucx_default_malloc(void *ignore, size_t n) { | |
| 47 return malloc(n); | 36 return malloc(n); |
| 48 } | 37 } |
| 49 | 38 |
| 50 void *ucx_default_calloc(void *ignore, size_t n, size_t size) { | 39 __attribute__((__warn_unused_result__, __alloc_size__(3))) |
| 51 return calloc(n, size); | 40 static void *cx_realloc_stdlib( |
| 41 __attribute__((__unused__)) void *d, | |
| 42 void *mem, | |
| 43 size_t n | |
| 44 ) { | |
| 45 return realloc(mem, n); | |
| 52 } | 46 } |
| 53 | 47 |
| 54 void *ucx_default_realloc(void *ignore, void *data, size_t n) { | 48 __attribute__((__malloc__, __alloc_size__(2, 3))) |
| 55 return realloc(data, n); | 49 static void *cx_calloc_stdlib( |
| 50 __attribute__((__unused__)) void *d, | |
| 51 size_t nelem, | |
| 52 size_t n | |
| 53 ) { | |
| 54 return calloc(nelem, n); | |
| 56 } | 55 } |
| 57 | 56 |
| 58 void ucx_default_free(void *ignore, void *data) { | 57 __attribute__((__nonnull__)) |
| 59 free(data); | 58 static void cx_free_stdlib( |
| 59 __attribute__((__unused__)) void *d, | |
| 60 void *mem | |
| 61 ) { | |
| 62 free(mem); | |
| 60 } | 63 } |
| 64 | |
| 65 static cx_allocator_class cx_default_allocator_class = { | |
| 66 cx_malloc_stdlib, | |
| 67 cx_realloc_stdlib, | |
| 68 cx_calloc_stdlib, | |
| 69 cx_free_stdlib | |
| 70 }; | |
| 71 | |
| 72 struct cx_allocator_s cx_default_allocator = { | |
| 73 &cx_default_allocator_class, | |
| 74 NULL | |
| 75 }; | |
| 76 CxAllocator *cxDefaultAllocator = &cx_default_allocator; | |
| 77 | |
| 78 | |
| 79 int cx_reallocate( | |
| 80 void **mem, | |
| 81 size_t n | |
| 82 ) { | |
| 83 void *nmem = realloc(*mem, n); | |
| 84 if (nmem == NULL) { | |
| 85 return 1; | |
| 86 } else { | |
| 87 *mem = nmem; | |
| 88 return 0; | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 // IMPLEMENTATION OF HIGH LEVEL API | |
| 93 | |
| 94 void *cxMalloc( | |
| 95 const CxAllocator *allocator, | |
| 96 size_t n | |
| 97 ) { | |
| 98 return allocator->cl->malloc(allocator->data, n); | |
| 99 } | |
| 100 | |
| 101 void *cxRealloc( | |
| 102 const CxAllocator *allocator, | |
| 103 void *mem, | |
| 104 size_t n | |
| 105 ) { | |
| 106 return allocator->cl->realloc(allocator->data, mem, n); | |
| 107 } | |
| 108 | |
| 109 int cxReallocate( | |
| 110 const CxAllocator *allocator, | |
| 111 void **mem, | |
| 112 size_t n | |
| 113 ) { | |
| 114 void *nmem = allocator->cl->realloc(allocator->data, *mem, n); | |
| 115 if (nmem == NULL) { | |
| 116 return 1; | |
| 117 } else { | |
| 118 *mem = nmem; | |
| 119 return 0; | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 void *cxCalloc( | |
| 124 const CxAllocator *allocator, | |
| 125 size_t nelem, | |
| 126 size_t n | |
| 127 ) { | |
| 128 return allocator->cl->calloc(allocator->data, nelem, n); | |
| 129 } | |
| 130 | |
| 131 void cxFree( | |
| 132 const CxAllocator *allocator, | |
| 133 void *mem | |
| 134 ) { | |
| 135 allocator->cl->free(allocator->data, mem); | |
| 136 } |
