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annotate src/libmlk-core/core/alloc.h @ 402:d3fa956cdaf0

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core: add alloc_sdupf
author David Demelier <markand@malikania.fr>
date Wed, 30 Mar 2022 15:06:55 +0200
parents 460c78706989
children 7321511052f6
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1 /*
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2 * alloc.h -- custom allocators
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3 *
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4 * Copyright (c) 2020-2022 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #ifndef MLK_CORE_ALLOC_H
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20 #define MLK_CORE_ALLOC_H
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21
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22 #include <stddef.h>
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23
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24 #include "core.h"
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25 #include "util.h"
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26
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27 /* Must be power of 2. */
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28 #define ALLOC_POOL_INIT_DEFAULT (32)
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29
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30 /* Custom allocator. */
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31 struct alloc_funcs {
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32 void *(*alloc)(size_t);
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33 void *(*realloc)(void *, size_t);
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34 void (*free)(void *);
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35 };
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36
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37 /* Minimalist growable array for loading data. */
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38 struct alloc_pool {
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39 void *data;
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40 size_t elemsize;
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41 size_t size;
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42 size_t capacity;
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43 void (*finalizer)(void *);
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44 };
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45
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46 CORE_BEGIN_DECLS
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47
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48 /* allocator functions. */
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49 void
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50 alloc_set(const struct alloc_funcs *);
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51
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52 void *
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53 alloc_new(size_t);
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54
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55 void *
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56 alloc_new0(size_t);
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57
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58 void *
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59 alloc_array(size_t, size_t);
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60
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61 void *
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62 alloc_array0(size_t, size_t);
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63
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64 void *
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65 alloc_renew(void *, size_t);
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66
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67 void *
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68 alloc_rearray(void *, size_t, size_t);
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69
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70 void *
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71 alloc_rearray0(void *, size_t, size_t, size_t);
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72
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73 void *
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74 alloc_dup(const void *, size_t);
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75
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76 char *
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77 alloc_sdup(const char *);
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78
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79 char *
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80 alloc_sdupf(const char *, ...);
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81
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82 /* alloc_pool functions. */
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83 int
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84 alloc_pool_init(struct alloc_pool *, size_t , void (*)(void *));
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85
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86 void *
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87 alloc_pool_new(struct alloc_pool *);
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88
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89 void *
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90 alloc_pool_get(const struct alloc_pool *, size_t);
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91
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92 void
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93 alloc_pool_finish(struct alloc_pool *);
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94
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95 CORE_END_DECLS
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96
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97 #endif /* !MLK_CORE_ALLOC_H */