comparison: src/ucx/allocator.c
src/ucx/allocator.c
- changeset 415
- d938228c382e
- parent 254
- 4784c14aa639
- child 438
- 22eca559aded
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| 414:99a34860c105 | 415:d938228c382e |
|---|---|
| 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 #include <stdlib.h> |
| 32 | 32 |
| 33 static UcxAllocator default_allocator = { | 33 __attribute__((__malloc__, __alloc_size__(2))) |
| 34 NULL, | 34 static void *cx_malloc_stdlib( |
| 35 ucx_default_malloc, | 35 __attribute__((__unused__)) void *d, |
| 36 ucx_default_calloc, | 36 size_t n |
| 37 ucx_default_realloc, | 37 ) { |
| 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); | 38 return malloc(n); |
| 48 } | 39 } |
| 49 | 40 |
| 50 void *ucx_default_calloc(void *ignore, size_t n, size_t size) { | 41 __attribute__((__warn_unused_result__, __alloc_size__(3))) |
| 51 return calloc(n, size); | 42 static void *cx_realloc_stdlib( |
| 43 __attribute__((__unused__)) void *d, | |
| 44 void *mem, | |
| 45 size_t n | |
| 46 ) { | |
| 47 return realloc(mem, n); | |
| 52 } | 48 } |
| 53 | 49 |
| 54 void *ucx_default_realloc(void *ignore, void *data, size_t n) { | 50 __attribute__((__malloc__, __alloc_size__(2, 3))) |
| 55 return realloc(data, n); | 51 static void *cx_calloc_stdlib( |
| 52 __attribute__((__unused__)) void *d, | |
| 53 size_t nelem, | |
| 54 size_t n | |
| 55 ) { | |
| 56 return calloc(nelem, n); | |
| 56 } | 57 } |
| 57 | 58 |
| 58 void ucx_default_free(void *ignore, void *data) { | 59 __attribute__((__nonnull__)) |
| 59 free(data); | 60 static void cx_free_stdlib( |
| 61 __attribute__((__unused__)) void *d, | |
| 62 void *mem | |
| 63 ) { | |
| 64 free(mem); | |
| 60 } | 65 } |
| 66 | |
| 67 static cx_allocator_class cx_default_allocator_class = { | |
| 68 cx_malloc_stdlib, | |
| 69 cx_realloc_stdlib, | |
| 70 cx_calloc_stdlib, | |
| 71 cx_free_stdlib | |
| 72 }; | |
| 73 | |
| 74 struct cx_allocator_s cx_default_allocator = { | |
| 75 &cx_default_allocator_class, | |
| 76 NULL | |
| 77 }; | |
| 78 CxAllocator *cxDefaultAllocator = &cx_default_allocator; | |
| 79 | |
| 80 /* IMPLEMENTATION OF HIGH LEVEL API */ | |
| 81 | |
| 82 void *cxMalloc( | |
| 83 CxAllocator const *allocator, | |
| 84 size_t n | |
| 85 ) { | |
| 86 return allocator->cl->malloc(allocator->data, n); | |
| 87 } | |
| 88 | |
| 89 void *cxRealloc( | |
| 90 CxAllocator const *allocator, | |
| 91 void *mem, | |
| 92 size_t n | |
| 93 ) { | |
| 94 return allocator->cl->realloc(allocator->data, mem, n); | |
| 95 } | |
| 96 | |
| 97 int cxReallocate( | |
| 98 CxAllocator const *allocator, | |
| 99 void **mem, | |
| 100 size_t n | |
| 101 ) { | |
| 102 void *nmem = allocator->cl->realloc(allocator->data, *mem, n); | |
| 103 if (nmem == NULL) { | |
| 104 return 1; | |
| 105 } else { | |
| 106 *mem = nmem; | |
| 107 return 0; | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 void *cxCalloc( | |
| 112 CxAllocator const *allocator, | |
| 113 size_t nelem, | |
| 114 size_t n | |
| 115 ) { | |
| 116 return allocator->cl->calloc(allocator->data, nelem, n); | |
| 117 } | |
| 118 | |
| 119 void cxFree( | |
| 120 CxAllocator const *allocator, | |
| 121 void *mem | |
| 122 ) { | |
| 123 allocator->cl->free(allocator->data, mem); | |
| 124 } |
